[recipes] Add toolchain version to extra_cflags.

In compile recipes, add a dummy define (e.g.
-DDUMMY_clang_linux_version=42) to the compiler flags so that ninja will
recompile from scratch when the toolchain changes.

Bug: skia:7720
Change-Id: I9a330b21af364b3aa6a1eebbe6ac2022cfa82fdc
Reviewed-on: https://skia-review.googlesource.com/115160
Reviewed-by: Eric Boren <borenet@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Ben Wagner <benjaminwagner@google.com>

69 files changed, 1072 insertions, 67 deletions

diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm-Release-Android_API26.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm-Release-Android_API26.json
index 4a935a60a8..a3ad9608e0 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm-Release-Android_API26.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm-Release-Android_API26.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -20,7 +34,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-arm-Release-Android_API26/Release",
-      "--args=is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" ndk_api=26 target_cpu=\"arm\""
+      "--args=extra_cflags=[\"-DDUMMY_ndk_version=42\"] is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" ndk_api=26 target_cpu=\"arm\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm-Release-Android_ASAN.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm-Release-Android_ASAN.json
index 4ec3463d65..07347cc401 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm-Release-Android_ASAN.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm-Release-Android_ASAN.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -20,7 +34,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-arm-Release-Android_ASAN/Release",
-      "--args=is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" ndk_api=21 sanitize=\"ASAN\" target_cpu=\"arm\""
+      "--args=extra_cflags=[\"-DDUMMY_ndk_version=42\"] is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" ndk_api=21 sanitize=\"ASAN\" target_cpu=\"arm\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm-Release-Chromebook_GLES.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm-Release-Chromebook_GLES.json
index 76c2340bde..6e2e365730 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm-Release-Chromebook_GLES.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm-Release-Chromebook_GLES.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -21,7 +35,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-arm-Release-Chromebook_GLES/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_asmflags=[\"--target=armv7a-linux-gnueabihf\", \"--sysroot=[START_DIR]/armhf_sysroot\", \"-march=armv7-a\", \"-mfpu=neon\", \"-mthumb\"] extra_cflags=[\"--target=armv7a-linux-gnueabihf\", \"--sysroot=[START_DIR]/armhf_sysroot\", \"-I[START_DIR]/chromebook_arm_gles/include\", \"-I[START_DIR]/armhf_sysroot/include\", \"-I[START_DIR]/armhf_sysroot/include/c++/4.8.4\", \"-I[START_DIR]/armhf_sysroot/include/c++/4.8.4/arm-linux-gnueabihf\", \"-DMESA_EGL_NO_X11_HEADERS\"] extra_ldflags=[\"--target=armv7a-linux-gnueabihf\", \"--sysroot=[START_DIR]/armhf_sysroot\", \"-B[START_DIR]/armhf_sysroot/bin\", \"-B[START_DIR]/armhf_sysroot/gcc-cross\", \"-L[START_DIR]/armhf_sysroot/gcc-cross\", \"-L[START_DIR]/armhf_sysroot/lib\", \"-L[START_DIR]/chromebook_arm_gles/lib\"] is_debug=false skia_use_egl=true skia_use_fontconfig=false skia_use_system_freetype2=false target_cpu=\"arm\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_asmflags=[\"--target=armv7a-linux-gnueabihf\", \"--sysroot=[START_DIR]/armhf_sysroot\", \"-march=armv7-a\", \"-mfpu=neon\", \"-mthumb\"] extra_cflags=[\"--target=armv7a-linux-gnueabihf\", \"--sysroot=[START_DIR]/armhf_sysroot\", \"-I[START_DIR]/chromebook_arm_gles/include\", \"-I[START_DIR]/armhf_sysroot/include\", \"-I[START_DIR]/armhf_sysroot/include/c++/4.8.4\", \"-I[START_DIR]/armhf_sysroot/include/c++/4.8.4/arm-linux-gnueabihf\", \"-DMESA_EGL_NO_X11_HEADERS\", \"-DDUMMY_clang_linux_version=42\"] extra_ldflags=[\"--target=armv7a-linux-gnueabihf\", \"--sysroot=[START_DIR]/armhf_sysroot\", \"-B[START_DIR]/armhf_sysroot/bin\", \"-B[START_DIR]/armhf_sysroot/gcc-cross\", \"-L[START_DIR]/armhf_sysroot/gcc-cross\", \"-L[START_DIR]/armhf_sysroot/lib\", \"-L[START_DIR]/chromebook_arm_gles/lib\"] is_debug=false skia_use_egl=true skia_use_fontconfig=false skia_use_system_freetype2=false target_cpu=\"arm\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm64-Release-Android_ASAN.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm64-Release-Android_ASAN.json
index 23d27d727b..4f28854507 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm64-Release-Android_ASAN.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-arm64-Release-Android_ASAN.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -20,7 +34,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-arm64-Release-Android_ASAN/Release",
-      "--args=is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" sanitize=\"ASAN\" target_cpu=\"arm64\""
+      "--args=extra_cflags=[\"-DDUMMY_ndk_version=42\"] is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" sanitize=\"ASAN\" target_cpu=\"arm64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-universal-devrel-Android_SKQP.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-universal-devrel-Android_SKQP.json
index 8fd62020e5..7a4b54cb69 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-universal-devrel-Android_SKQP.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-universal-devrel-Android_SKQP.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Debug-Chromebook_GLES.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Debug-Chromebook_GLES.json
index b89c2e0f46..da96284755 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Debug-Chromebook_GLES.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Debug-Chromebook_GLES.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -20,7 +34,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-x86_64-Debug-Chromebook_GLES/Debug",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_asmflags=[] extra_cflags=[\"-DMESA_EGL_NO_X11_HEADERS\", \"-I[START_DIR]/chromebook_x86_64_gles/include\"] extra_ldflags=[\"-L[START_DIR]/chromebook_x86_64_gles/lib\", \"-static-libstdc++\", \"-static-libgcc\", \"-fuse-ld=lld\"] skia_use_egl=true skia_use_fontconfig=false skia_use_system_freetype2=false target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_asmflags=[] extra_cflags=[\"-DMESA_EGL_NO_X11_HEADERS\", \"-I[START_DIR]/chromebook_x86_64_gles/include\", \"-DDUMMY_clang_linux_version=42\"] extra_ldflags=[\"-L[START_DIR]/chromebook_x86_64_gles/lib\", \"-static-libstdc++\", \"-static-libgcc\", \"-fuse-ld=lld\"] skia_use_egl=true skia_use_fontconfig=false skia_use_system_freetype2=false target_cpu=\"x86_64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Debug-SK_USE_DISCARDABLE_SCALEDIMAGECACHE.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Debug-SK_USE_DISCARDABLE_SCALEDIMAGECACHE.json
index b41e25254a..435eae2194 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Debug-SK_USE_DISCARDABLE_SCALEDIMAGECACHE.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Debug-SK_USE_DISCARDABLE_SCALEDIMAGECACHE.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -20,7 +34,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-x86_64-Debug-SK_USE_DISCARDABLE_SCALEDIMAGECACHE/Debug",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-O1\", \"-DSK_USE_DISCARDABLE_SCALEDIMAGECACHE\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\", \"-O1\", \"-DSK_USE_DISCARDABLE_SCALEDIMAGECACHE\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] target_cpu=\"x86_64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-Fast.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-Fast.json
index f699828e55..98475cfaf4 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-Fast.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-Fast.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -20,7 +34,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-x86_64-Release-Fast/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-march=native\", \"-fomit-frame-pointer\", \"-O3\", \"-ffp-contract=off\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\", \"-march=native\", \"-fomit-frame-pointer\", \"-O3\", \"-ffp-contract=off\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false target_cpu=\"x86_64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-Mini.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-Mini.json
index 4582b2c49b..f61cc7e46a 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-Mini.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-Mini.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -20,7 +34,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-x86_64-Release-Mini/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_component_build=true is_debug=false is_official_build=true skia_enable_effects=false skia_enable_gpu=true skia_enable_pdf=false skia_use_expat=false skia_use_libjpeg_turbo=false skia_use_libpng=false skia_use_libwebp=false skia_use_zlib=false target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_component_build=true is_debug=false is_official_build=true skia_enable_effects=false skia_enable_gpu=true skia_enable_pdf=false skia_use_expat=false skia_use_libjpeg_turbo=false skia_use_libpng=false skia_use_libwebp=false skia_use_zlib=false target_cpu=\"x86_64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-NoDEPS.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-NoDEPS.json
index eefd5c11cd..813cd52c49 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-NoDEPS.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-NoDEPS.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/skia/out/Build-Debian9-Clang-x86_64-Release-NoDEPS/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false is_official_build=true skia_enable_effects=false skia_enable_fontmgr_empty=true skia_enable_gpu=true skia_enable_pdf=false skia_use_expat=false skia_use_freetype=false skia_use_libjpeg_turbo=false skia_use_libpng=false skia_use_libwebp=false skia_use_vulkan=false skia_use_zlib=false target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false is_official_build=true skia_enable_effects=false skia_enable_fontmgr_empty=true skia_enable_gpu=true skia_enable_pdf=false skia_use_expat=false skia_use_freetype=false skia_use_libjpeg_turbo=false skia_use_libpng=false skia_use_libwebp=false skia_use_vulkan=false skia_use_zlib=false target_cpu=\"x86_64\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-Vulkan.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-Vulkan.json
index 4d458719d6..c89c2b2493 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-Vulkan.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-Clang-x86_64-Release-Vulkan.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -20,7 +34,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-x86_64-Release-Vulkan/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/linux_vulkan_sdk\" target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/linux_vulkan_sdk\" target_cpu=\"x86_64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-EMCC-wasm-Release.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-EMCC-wasm-Release.json
index 833f5736c0..caf77dcae5 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-EMCC-wasm-Release.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-EMCC-wasm-Release.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/emscripten_sdk/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get emscripten_sdk VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -20,7 +34,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-EMCC-wasm-Release/Release",
-      "--args=cc=\"[START_DIR]/emscripten_sdk/emscripten/incoming/emcc\" cxx=\"[START_DIR]/emscripten_sdk/emscripten/incoming/em++\" extra_cflags=[\"-Wno-unknown-warning-option\"] is_debug=false skia_enable_gpu=false skia_use_dng_sdk=false skia_use_fontconfig=false skia_use_freetype=false skia_use_icu=false target_cpu=\"wasm\""
+      "--args=cc=\"[START_DIR]/emscripten_sdk/emscripten/incoming/emcc\" cxx=\"[START_DIR]/emscripten_sdk/emscripten/incoming/em++\" extra_cflags=[\"-Wno-unknown-warning-option\", \"-DDUMMY_emscripten_sdk_version=42\"] is_debug=false skia_enable_gpu=false skia_use_dng_sdk=false skia_use_fontconfig=false skia_use_freetype=false skia_use_icu=false target_cpu=\"wasm\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Mac-Clang-arm64-Debug-Android_Vulkan.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Mac-Clang-arm64-Debug-Android_Vulkan.json
index f17b7560bb..846634c05d 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Mac-Clang-arm64-Debug-Android_Vulkan.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Mac-Clang-arm64-Debug-Android_Vulkan.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/android_ndk_darwin/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_darwin VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -20,7 +34,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Mac-Clang-arm64-Debug-Android_Vulkan/Debug",
-      "--args=extra_cflags=[\"-O1\"] ndk=\"[START_DIR]/android_ndk_darwin\" ndk_api=24 skia_enable_vulkan_debug_layers=false target_cpu=\"arm64\""
+      "--args=extra_cflags=[\"-O1\", \"-DDUMMY_ndk_version=42\"] ndk=\"[START_DIR]/android_ndk_darwin\" ndk_api=24 skia_enable_vulkan_debug_layers=false target_cpu=\"arm64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-arm64-Release-Android.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-arm64-Release-Android.json
index 95c0a87899..7c6eb71db0 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-arm64-Release-Android.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-arm64-Release-Android.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_C:\\_B_WORK]/skia/infra/bots/assets/android_ndk_windows/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_windows VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_C:\\_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]/skia",
@@ -20,7 +34,7 @@
       "[CUSTOM_C:\\_B_WORK]/skia/bin/gn.exe",
       "gen",
       "[CUSTOM_C:\\_B_WORK]/skia/out/Build-Win-Clang-arm64-Release-Android/Release",
-      "--args=is_debug=false ndk=\"[START_DIR]/n\" target_cpu=\"arm64\""
+      "--args=extra_cflags=[\"-DDUMMY_ndk_version=42\"] is_debug=false ndk=\"[START_DIR]/n\" target_cpu=\"arm64\""
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-x86_64-Debug-GDI.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-x86_64-Debug-GDI.json
index 609fa0796e..97e14930b6 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-x86_64-Debug-GDI.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-x86_64-Debug-GDI.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_C:\\_B_WORK]/skia/infra/bots/assets/clang_win/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_win VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_C:\\_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]/skia",
@@ -20,7 +34,7 @@
       "[CUSTOM_C:\\_B_WORK]/skia/bin/gn.exe",
       "gen",
       "[CUSTOM_C:\\_B_WORK]/skia/out/Build-Win-Clang-x86_64-Debug-GDI/Debug_x64",
-      "--args=cc=\"clang\" clang_win=\"[START_DIR]/clang_win\" cxx=\"clang++\" extra_cflags=[\"-O1\"] target_cpu=\"x86_64\" win_sdk=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/win_sdk\" win_vc=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/VC\""
+      "--args=cc=\"clang\" clang_win=\"[START_DIR]/clang_win\" cxx=\"clang++\" extra_cflags=[\"-O1\", \"-DDUMMY_clang_win_version=42\"] target_cpu=\"x86_64\" win_sdk=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/win_sdk\" win_vc=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/VC\""
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-x86_64-Release-Vulkan.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-x86_64-Release-Vulkan.json
index c6e64880f9..a844cff802 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-x86_64-Release-Vulkan.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-x86_64-Release-Vulkan.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_C:\\_B_WORK]/skia/infra/bots/assets/clang_win/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_win VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_C:\\_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]/skia",
@@ -20,7 +34,7 @@
       "[CUSTOM_C:\\_B_WORK]/skia/bin/gn.exe",
       "gen",
       "[CUSTOM_C:\\_B_WORK]/skia/out/Build-Win-Clang-x86_64-Release-Vulkan/Release_x64",
-      "--args=cc=\"clang\" clang_win=\"[START_DIR]/clang_win\" cxx=\"clang++\" is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/win_vulkan_sdk\" target_cpu=\"x86_64\" win_sdk=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/win_sdk\" win_vc=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/VC\""
+      "--args=cc=\"clang\" clang_win=\"[START_DIR]/clang_win\" cxx=\"clang++\" extra_cflags=[\"-DDUMMY_clang_win_version=42\"] is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/win_vulkan_sdk\" target_cpu=\"x86_64\" win_sdk=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/win_sdk\" win_vc=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/VC\""
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-x86_64-Release.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-x86_64-Release.json
index 28ec945aa8..b21990314d 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-x86_64-Release.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Win-Clang-x86_64-Release.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_C:\\_B_WORK]/skia/infra/bots/assets/clang_win/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_win VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_C:\\_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]/skia",
@@ -20,7 +34,7 @@
       "[CUSTOM_C:\\_B_WORK]/skia/bin/gn.exe",
       "gen",
       "[CUSTOM_C:\\_B_WORK]/skia/out/Build-Win-Clang-x86_64-Release/Release_x64",
-      "--args=cc=\"clang\" clang_win=\"[START_DIR]/clang_win\" cxx=\"clang++\" is_debug=false target_cpu=\"x86_64\" win_sdk=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/win_sdk\" win_vc=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/VC\""
+      "--args=cc=\"clang\" clang_win=\"[START_DIR]/clang_win\" cxx=\"clang++\" extra_cflags=[\"-DDUMMY_clang_win_version=42\"] is_debug=false target_cpu=\"x86_64\" win_sdk=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/win_sdk\" win_vc=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/VC\""
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-GalaxyS7_G930FD-GPU-MaliT880-arm64-Debug-All-Android.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-GalaxyS7_G930FD-GPU-MaliT880-arm64-Debug-All-Android.json
index a63232dfe5..76d3eadd54 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-GalaxyS7_G930FD-GPU-MaliT880-arm64-Debug-All-Android.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-GalaxyS7_G930FD-GPU-MaliT880-arm64-Debug-All-Android.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=extra_cflags=[\"-O1\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
+      "--args=extra_cflags=[\"-O1\", \"-DDUMMY_ndk_version=42\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-Nexus5x-GPU-Adreno418-arm64-Debug-All-Android.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-Nexus5x-GPU-Adreno418-arm64-Debug-All-Android.json
index af40eabed8..8d9e8d0613 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-Nexus5x-GPU-Adreno418-arm64-Debug-All-Android.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-Nexus5x-GPU-Adreno418-arm64-Debug-All-Android.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=extra_cflags=[\"-O1\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
+      "--args=extra_cflags=[\"-O1\", \"-DDUMMY_ndk_version=42\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Debug-All-Android.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Debug-All-Android.json
index 255f4d8c57..a49c64fc2b 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Debug-All-Android.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Debug-All-Android.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=extra_cflags=[\"-O1\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
+      "--args=extra_cflags=[\"-O1\", \"-DDUMMY_ndk_version=42\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json
index 8139b64345..102c4b2f48 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=extra_cflags=[\"-O1\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
+      "--args=extra_cflags=[\"-O1\", \"-DDUMMY_ndk_version=42\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-ChromeOS-Clang-SamsungChromebookPlus-GPU-MaliT860-arm-Release-All.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-ChromeOS-Clang-SamsungChromebookPlus-GPU-MaliT860-arm-Release-All.json
index 94144f5fc1..8e534bcbc3 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-ChromeOS-Clang-SamsungChromebookPlus-GPU-MaliT860-arm-Release-All.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-ChromeOS-Clang-SamsungChromebookPlus-GPU-MaliT860-arm-Release-All.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_asmflags=[] extra_cflags=[\"-DMESA_EGL_NO_X11_HEADERS\", \"-I[START_DIR]/chromebook_x86_64_gles/include\"] extra_ldflags=[\"-L[START_DIR]/chromebook_x86_64_gles/lib\", \"-static-libstdc++\", \"-static-libgcc\", \"-fuse-ld=lld\"] is_debug=false skia_use_egl=true skia_use_fontconfig=false skia_use_system_freetype2=false target_cpu=\"None\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_asmflags=[] extra_cflags=[\"-DMESA_EGL_NO_X11_HEADERS\", \"-I[START_DIR]/chromebook_x86_64_gles/include\", \"-DDUMMY_clang_linux_version=42\"] extra_ldflags=[\"-L[START_DIR]/chromebook_x86_64_gles/lib\", \"-static-libstdc++\", \"-static-libgcc\", \"-fuse-ld=lld\"] is_debug=false skia_use_egl=true skia_use_fontconfig=false skia_use_system_freetype2=false target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Chromecast-GCC-Chorizo-CPU-Cortex_A7-arm-Release-All.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Chromecast-GCC-Chorizo-CPU-Cortex_A7-arm-Release-All.json
index 79e02fe7d8..b842e12017 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Chromecast-GCC-Chorizo-CPU-Cortex_A7-arm-Release-All.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Chromecast-GCC-Chorizo-CPU-Cortex_A7-arm-Release-All.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/cast_toolchain/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get cast_toolchain VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Release",
-      "--args=ar=\"[START_DIR]/cast_toolchain/armv7a/bin/armv7a-cros-linux-gnueabi-ar\" cc=\"[START_DIR]/cast_toolchain/armv7a/bin/armv7a-cros-linux-gnueabi-gcc\" cxx=\"[START_DIR]/cast_toolchain/armv7a/bin/armv7a-cros-linux-gnueabi-g++\" extra_cflags=[\"-I[START_DIR]/chromebook_arm_gles/include\", \"-DMESA_EGL_NO_X11_HEADERS\", \"-DSK_NO_COMMAND_BUFFER\", \"-Wno-error=unused-function\", \"-g0\"] extra_ldflags=[\"-static-libstdc++\", \"-static-libgcc\", \"-L[START_DIR]/cast_toolchain/armv7a/lib\"] is_debug=false skia_enable_gpu=true skia_use_egl=true skia_use_fontconfig=false skia_use_icu=false skia_use_system_freetype2=false target_cpu=\"None\""
+      "--args=ar=\"[START_DIR]/cast_toolchain/armv7a/bin/armv7a-cros-linux-gnueabi-ar\" cc=\"[START_DIR]/cast_toolchain/armv7a/bin/armv7a-cros-linux-gnueabi-gcc\" cxx=\"[START_DIR]/cast_toolchain/armv7a/bin/armv7a-cros-linux-gnueabi-g++\" extra_cflags=[\"-I[START_DIR]/chromebook_arm_gles/include\", \"-DMESA_EGL_NO_X11_HEADERS\", \"-DSK_NO_COMMAND_BUFFER\", \"-Wno-error=unused-function\", \"-g0\", \"-DDUMMY_cast_toolchain_version=42\"] extra_ldflags=[\"-static-libstdc++\", \"-static-libgcc\", \"-L[START_DIR]/cast_toolchain/armv7a/lib\"] is_debug=false skia_enable_gpu=true skia_use_egl=true skia_use_fontconfig=false skia_use_icu=false skia_use_system_freetype2=false target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-All-MSAN.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-All-MSAN.json
index 8e2809df7d..b96b459acd 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-All-MSAN.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-All-MSAN.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\", \"-L[START_DIR]/clang_linux/msan\"] sanitize=\"MSAN\" skia_enable_gpu=false skia_use_fontconfig=false"
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\", \"-L[START_DIR]/clang_linux/msan\"] sanitize=\"MSAN\" skia_enable_gpu=false skia_use_fontconfig=false"
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-All-ASAN.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-All-ASAN.json
index 356a451895..872a557ffb 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-All-ASAN.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-All-ASAN.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false sanitize=\"ASAN\" skia_enable_spirv_validation=false"
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false sanitize=\"ASAN\" skia_enable_spirv_validation=false"
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-AndroidOne-GPU-Mali400MP2-arm-Release-All-Android.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-AndroidOne-GPU-Mali400MP2-arm-Release-All-Android.json
index eeb07c87f8..c51111e371 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-AndroidOne-GPU-Mali400MP2-arm-Release-All-Android.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-AndroidOne-GPU-Mali400MP2-arm-Release-All-Android.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Release",
-      "--args=is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
+      "--args=extra_cflags=[\"-DDUMMY_ndk_version=42\"] is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-GalaxyS7_G930FD-GPU-MaliT880-arm64-Debug-All-Android.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-GalaxyS7_G930FD-GPU-MaliT880-arm64-Debug-All-Android.json
index e9dde6a619..93d3cc12bd 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-GalaxyS7_G930FD-GPU-MaliT880-arm64-Debug-All-Android.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-GalaxyS7_G930FD-GPU-MaliT880-arm64-Debug-All-Android.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=extra_cflags=[\"-O1\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
+      "--args=extra_cflags=[\"-O1\", \"-DDUMMY_ndk_version=42\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus5x-GPU-Adreno418-arm64-Debug-All-Android.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus5x-GPU-Adreno418-arm64-Debug-All-Android.json
index 37466fac62..8a809ef1d5 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus5x-GPU-Adreno418-arm64-Debug-All-Android.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus5x-GPU-Adreno418-arm64-Debug-All-Android.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=extra_cflags=[\"-O1\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
+      "--args=extra_cflags=[\"-O1\", \"-DDUMMY_ndk_version=42\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus5x-GPU-Adreno418-arm64-Release-All-Android_ASAN.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus5x-GPU-Adreno418-arm64-Release-All-Android_ASAN.json
index 01799bcab5..d8820d3868 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus5x-GPU-Adreno418-arm64-Release-All-Android_ASAN.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus5x-GPU-Adreno418-arm64-Release-All-Android_ASAN.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Release",
-      "--args=is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" sanitize=\"ASAN\" target_cpu=\"None\""
+      "--args=extra_cflags=[\"-DDUMMY_ndk_version=42\"] is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" sanitize=\"ASAN\" target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus7-CPU-Tegra3-arm-Release-All-Android.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus7-CPU-Tegra3-arm-Release-All-Android.json
index d473292e21..7afec9ca30 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus7-CPU-Tegra3-arm-Release-All-Android.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus7-CPU-Tegra3-arm-Release-All-Android.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Release",
-      "--args=is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
+      "--args=extra_cflags=[\"-DDUMMY_ndk_version=42\"] is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json
index 4f85b3ee8b..daae6a84d2 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=extra_cflags=[\"-O1\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
+      "--args=extra_cflags=[\"-O1\", \"-DDUMMY_ndk_version=42\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-ChromeOS-Clang-SamsungChromebookPlus-GPU-MaliT860-arm-Release-All.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-ChromeOS-Clang-SamsungChromebookPlus-GPU-MaliT860-arm-Release-All.json
index ee9b6b494a..d6a04707a5 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-ChromeOS-Clang-SamsungChromebookPlus-GPU-MaliT860-arm-Release-All.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-ChromeOS-Clang-SamsungChromebookPlus-GPU-MaliT860-arm-Release-All.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_asmflags=[] extra_cflags=[\"-DMESA_EGL_NO_X11_HEADERS\", \"-I[START_DIR]/chromebook_x86_64_gles/include\"] extra_ldflags=[\"-L[START_DIR]/chromebook_x86_64_gles/lib\", \"-static-libstdc++\", \"-static-libgcc\", \"-fuse-ld=lld\"] is_debug=false skia_use_egl=true skia_use_fontconfig=false skia_use_system_freetype2=false target_cpu=\"None\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_asmflags=[] extra_cflags=[\"-DMESA_EGL_NO_X11_HEADERS\", \"-I[START_DIR]/chromebook_x86_64_gles/include\", \"-DDUMMY_clang_linux_version=42\"] extra_ldflags=[\"-L[START_DIR]/chromebook_x86_64_gles/lib\", \"-static-libstdc++\", \"-static-libgcc\", \"-fuse-ld=lld\"] is_debug=false skia_use_egl=true skia_use_fontconfig=false skia_use_system_freetype2=false target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-universal-devrel-All-Android_SKQP.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-universal-devrel-All-Android_SKQP.json
index 73b720704e..a09291aa3a 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-universal-devrel-All-Android_SKQP.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-universal-devrel-All-Android_SKQP.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/devrel",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false"
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false"
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-All-Coverage.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-All-Coverage.json
index 9608000307..4f45cedc53 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-All-Coverage.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-All-Coverage.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fprofile-instr-generate\", \"-fcoverage-mapping\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\", \"-fprofile-instr-generate\", \"-fcoverage-mapping\"]"
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\", \"-fprofile-instr-generate\", \"-fcoverage-mapping\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\", \"-fprofile-instr-generate\", \"-fcoverage-mapping\"]"
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-All-SafeStack.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-All-SafeStack.json
index a4dab3315f..3affe51f9b 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-All-SafeStack.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-All-SafeStack.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] sanitize=\"safe-stack\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] sanitize=\"safe-stack\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-All-TSAN.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-All-TSAN.json
index 21875d3f4c..912538b018 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-All-TSAN.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-All-TSAN.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false sanitize=\"TSAN\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false sanitize=\"TSAN\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Ubuntu16-Clang-NUC7i5BNK-GPU-IntelIris640-x86_64-Debug-All-Vulkan.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Ubuntu16-Clang-NUC7i5BNK-GPU-IntelIris640-x86_64-Debug-All-Vulkan.json
index c35daae7d9..ec7f2e27aa 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Ubuntu16-Clang-NUC7i5BNK-GPU-IntelIris640-x86_64-Debug-All-Vulkan.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Ubuntu16-Clang-NUC7i5BNK-GPU-IntelIris640-x86_64-Debug-All-Vulkan.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/linux_vulkan_sdk\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/linux_vulkan_sdk\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Win10-Clang-Golo-GPU-QuadroP400-x86_64-Release-All-Vulkan_ProcDump.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Win10-Clang-Golo-GPU-QuadroP400-x86_64-Release-All-Vulkan_ProcDump.json
index 80d5810b3e..4ceff0ec91 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Win10-Clang-Golo-GPU-QuadroP400-x86_64-Release-All-Vulkan_ProcDump.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Win10-Clang-Golo-GPU-QuadroP400-x86_64-Release-All-Vulkan_ProcDump.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/clang_win/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get clang_win VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn.exe",
       "gen",
       "[START_DIR]/out/Release_x64",
-      "--args=cc=\"clang\" clang_win=\"[START_DIR]/clang_win\" cxx=\"clang++\" is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/win_vulkan_sdk\" win_sdk=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/win_sdk\" win_vc=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/VC\""
+      "--args=cc=\"clang\" clang_win=\"[START_DIR]/clang_win\" cxx=\"clang++\" extra_cflags=[\"-DDUMMY_clang_win_version=42\"] is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/win_vulkan_sdk\" win_sdk=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/win_sdk\" win_vc=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/VC\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/cpu_scale_failed.json b/infra/bots/recipe_modules/flavor/examples/full.expected/cpu_scale_failed.json
index e67b0373b4..e01b13439a 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/cpu_scale_failed.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/cpu_scale_failed.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=extra_cflags=[\"-O1\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
+      "--args=extra_cflags=[\"-O1\", \"-DDUMMY_ndk_version=42\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/failed_infra_step.json b/infra/bots/recipe_modules/flavor/examples/full.expected/failed_infra_step.json
index 7d43317103..fafc3ea6d3 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/failed_infra_step.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/failed_infra_step.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=extra_cflags=[\"-O1\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
+      "--args=extra_cflags=[\"-O1\", \"-DDUMMY_ndk_version=42\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/failed_read_version.json b/infra/bots/recipe_modules/flavor/examples/full.expected/failed_read_version.json
index afd21c64a9..7fb6a7bd00 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/failed_read_version.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/failed_read_version.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=extra_cflags=[\"-O1\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
+      "--args=extra_cflags=[\"-O1\", \"-DDUMMY_ndk_version=42\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/retry_adb_command.json b/infra/bots/recipe_modules/flavor/examples/full.expected/retry_adb_command.json
index 12be5603c6..64a8662e3a 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/retry_adb_command.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/retry_adb_command.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=extra_cflags=[\"-O1\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
+      "--args=extra_cflags=[\"-O1\", \"-DDUMMY_ndk_version=42\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/retry_adb_command_retries_exhausted.json b/infra/bots/recipe_modules/flavor/examples/full.expected/retry_adb_command_retries_exhausted.json
index 9bbd373d06..430b4c2bb5 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/retry_adb_command_retries_exhausted.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/retry_adb_command_retries_exhausted.json
@@ -3,6 +3,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -20,7 +34,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/out/Debug",
-      "--args=extra_cflags=[\"-O1\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
+      "--args=extra_cflags=[\"-O1\", \"-DDUMMY_ndk_version=42\"] ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"None\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipe_modules/flavor/gn_android_flavor.py b/infra/bots/recipe_modules/flavor/gn_android_flavor.py
index ea864ff55f..e0a6c107fa 100644
--- a/infra/bots/recipe_modules/flavor/gn_android_flavor.py
+++ b/infra/bots/recipe_modules/flavor/gn_android_flavor.py
@@ -357,16 +357,21 @@ if actual_freq != str(freq):
       extra_cflags.append('-O1')
 
     ndk_asset = 'android_ndk_linux'
+    ndk_path = ndk_asset
     if 'Mac' in os:
       ndk_asset = 'android_ndk_darwin'
+      ndk_path = ndk_asset
     elif 'Win' in os:
-      ndk_asset = 'n'
+      ndk_asset = 'android_ndk_windows'
+      ndk_path = 'n'
 
     quote = lambda x: '"%s"' % x
     args = {
-        'ndk': quote(self.m.vars.slave_dir.join(ndk_asset)),
+        'ndk': quote(self.m.vars.slave_dir.join(ndk_path)),
         'target_cpu': quote(target_arch),
     }
+    extra_cflags.append('-DDUMMY_ndk_version=%s' %
+                        self.m.run.asset_version(ndk_asset))
 
     if configuration != 'Debug':
       args['is_debug'] = 'false'
diff --git a/infra/bots/recipe_modules/flavor/gn_chromebook_flavor.py b/infra/bots/recipe_modules/flavor/gn_chromebook_flavor.py
index 8662ffd02f..f837378479 100644
--- a/infra/bots/recipe_modules/flavor/gn_chromebook_flavor.py
+++ b/infra/bots/recipe_modules/flavor/gn_chromebook_flavor.py
@@ -137,6 +137,8 @@ class GNChromebookFlavorUtils(gn_flavor.GNFlavorUtils):
       'skia_use_system_freetype2': 'false',
       'skia_use_egl': 'true',
     }
+    extra_cflags.append('-DDUMMY_clang_linux_version=%s' %
+                        self.m.run.asset_version('clang_linux'))
 
     if configuration != 'Debug':
       args['is_debug'] = 'false'
diff --git a/infra/bots/recipe_modules/flavor/gn_chromecast_flavor.py b/infra/bots/recipe_modules/flavor/gn_chromecast_flavor.py
index 11ee674ab2..d1b8f22030 100644
--- a/infra/bots/recipe_modules/flavor/gn_chromecast_flavor.py
+++ b/infra/bots/recipe_modules/flavor/gn_chromecast_flavor.py
@@ -68,6 +68,8 @@ class GNChromecastFlavorUtils(gn_android_flavor.GNAndroidFlavorUtils):
       '-Wno-error=unused-function',
       # Makes the binary small enough to fit on the small disk.
       '-g0',
+      ('-DDUMMY_cast_toolchain_version=%s' %
+       self.m.run.asset_version('cast_toolchain')),
     ]
 
     extra_ldflags = [
@@ -202,4 +204,3 @@ class GNChromecastFlavorUtils(gn_android_flavor.GNAndroidFlavorUtils):
 
     cmd[0] = '%s/%s' % (self.m.vars.android_bin_dir, cmd[0])
     self._ssh(str(name), *cmd, infra_step=False)
-
diff --git a/infra/bots/recipe_modules/flavor/gn_flavor.py b/infra/bots/recipe_modules/flavor/gn_flavor.py
index d41a76e575..aabb7fc041 100644
--- a/infra/bots/recipe_modules/flavor/gn_flavor.py
+++ b/infra/bots/recipe_modules/flavor/gn_flavor.py
@@ -48,6 +48,8 @@ class GNFlavorUtils(default_flavor.DefaultFlavorUtils):
       extra_cflags .append('-B%s/bin' % clang_linux)
       extra_ldflags.append('-B%s/bin' % clang_linux)
       extra_ldflags.append('-fuse-ld=lld')
+      extra_cflags.append('-DDUMMY_clang_linux_version=%s' %
+                          self.m.run.asset_version('clang_linux'))
     elif compiler == 'Clang':
       cc, cxx = 'clang', 'clang++'
     elif compiler == 'GCC' and os == "Ubuntu14":
@@ -58,6 +60,8 @@ class GNFlavorUtils(default_flavor.DefaultFlavorUtils):
       cc   = emscripten_sdk + '/emscripten/incoming/emcc'
       cxx  = emscripten_sdk + '/emscripten/incoming/em++'
       extra_cflags.append('-Wno-unknown-warning-option')
+      extra_cflags.append('-DDUMMY_emscripten_sdk_version=%s' %
+                          self.m.run.asset_version('emscripten_sdk'))
 
     if 'Coverage' in extra_tokens:
       # See https://clang.llvm.org/docs/SourceBasedCodeCoverage.html for
@@ -149,6 +153,8 @@ class GNFlavorUtils(default_flavor.DefaultFlavorUtils):
       args['skia_compile_processors'] = 'true'
     if compiler == 'Clang' and 'Win' in os:
       args['clang_win'] = '"%s"' % self.m.vars.slave_dir.join('clang_win')
+      extra_cflags.append('-DDUMMY_clang_win_version=%s' %
+                          self.m.run.asset_version('clang_win'))
     if target_arch == 'wasm':
       args.update({
         'skia_use_freetype':   'false',
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm-Release-Chromebook_GLES.json b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm-Release-Chromebook_GLES.json
index d0a762a598..098dbe7fb1 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm-Release-Chromebook_GLES.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm-Release-Chromebook_GLES.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -117,7 +135,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-arm-Release-Chromebook_GLES/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_asmflags=[\"--target=armv7a-linux-gnueabihf\", \"--sysroot=[START_DIR]/armhf_sysroot\", \"-march=armv7-a\", \"-mfpu=neon\", \"-mthumb\"] extra_cflags=[\"--target=armv7a-linux-gnueabihf\", \"--sysroot=[START_DIR]/armhf_sysroot\", \"-I[START_DIR]/chromebook_arm_gles/include\", \"-I[START_DIR]/armhf_sysroot/include\", \"-I[START_DIR]/armhf_sysroot/include/c++/4.8.4\", \"-I[START_DIR]/armhf_sysroot/include/c++/4.8.4/arm-linux-gnueabihf\", \"-DMESA_EGL_NO_X11_HEADERS\"] extra_ldflags=[\"--target=armv7a-linux-gnueabihf\", \"--sysroot=[START_DIR]/armhf_sysroot\", \"-B[START_DIR]/armhf_sysroot/bin\", \"-B[START_DIR]/armhf_sysroot/gcc-cross\", \"-L[START_DIR]/armhf_sysroot/gcc-cross\", \"-L[START_DIR]/armhf_sysroot/lib\", \"-L[START_DIR]/chromebook_arm_gles/lib\"] is_debug=false skia_use_egl=true skia_use_fontconfig=false skia_use_system_freetype2=false target_cpu=\"arm\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_asmflags=[\"--target=armv7a-linux-gnueabihf\", \"--sysroot=[START_DIR]/armhf_sysroot\", \"-march=armv7-a\", \"-mfpu=neon\", \"-mthumb\"] extra_cflags=[\"--target=armv7a-linux-gnueabihf\", \"--sysroot=[START_DIR]/armhf_sysroot\", \"-I[START_DIR]/chromebook_arm_gles/include\", \"-I[START_DIR]/armhf_sysroot/include\", \"-I[START_DIR]/armhf_sysroot/include/c++/4.8.4\", \"-I[START_DIR]/armhf_sysroot/include/c++/4.8.4/arm-linux-gnueabihf\", \"-DMESA_EGL_NO_X11_HEADERS\", \"-DDUMMY_clang_linux_version=42\"] extra_ldflags=[\"--target=armv7a-linux-gnueabihf\", \"--sysroot=[START_DIR]/armhf_sysroot\", \"-B[START_DIR]/armhf_sysroot/bin\", \"-B[START_DIR]/armhf_sysroot/gcc-cross\", \"-L[START_DIR]/armhf_sysroot/gcc-cross\", \"-L[START_DIR]/armhf_sysroot/lib\", \"-L[START_DIR]/chromebook_arm_gles/lib\"] is_debug=false skia_use_egl=true skia_use_fontconfig=false skia_use_system_freetype2=false target_cpu=\"arm\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm64-Release-Android.json b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm64-Release-Android.json
index ecb248c255..f79dd9aaba 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm64-Release-Android.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm64-Release-Android.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-arm64-Release-Android/Release",
-      "--args=is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"arm64\""
+      "--args=extra_cflags=[\"-DDUMMY_ndk_version=42\"] is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" target_cpu=\"arm64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm64-Release-Android_ASAN.json b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm64-Release-Android_ASAN.json
index a5e05da4df..473b7caeff 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm64-Release-Android_ASAN.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm64-Release-Android_ASAN.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-arm64-Release-Android_ASAN/Release",
-      "--args=is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" sanitize=\"ASAN\" target_cpu=\"arm64\""
+      "--args=extra_cflags=[\"-DDUMMY_ndk_version=42\"] is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" sanitize=\"ASAN\" target_cpu=\"arm64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm64-Release-Android_Vulkan.json b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm64-Release-Android_Vulkan.json
index 18239499e6..7afd40428e 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm64-Release-Android_Vulkan.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-arm64-Release-Android_Vulkan.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/android_ndk_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get android_ndk_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-arm64-Release-Android_Vulkan/Release",
-      "--args=is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" ndk_api=24 skia_enable_vulkan_debug_layers=false target_cpu=\"arm64\""
+      "--args=extra_cflags=[\"-DDUMMY_ndk_version=42\"] is_debug=false ndk=\"[START_DIR]/android_ndk_linux\" ndk_api=24 skia_enable_vulkan_debug_layers=false target_cpu=\"arm64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-ASAN.json b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-ASAN.json
index 8698092318..b96bce33fa 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-ASAN.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-ASAN.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-x86_64-Debug-ASAN/Debug",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] sanitize=\"ASAN\" skia_enable_spirv_validation=false target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] sanitize=\"ASAN\" skia_enable_spirv_validation=false target_cpu=\"x86_64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-Coverage.json b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-Coverage.json
index 8330303358..0b8266dcb1 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-Coverage.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-Coverage.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-x86_64-Debug-Coverage/Debug",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fprofile-instr-generate\", \"-fcoverage-mapping\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\", \"-fprofile-instr-generate\", \"-fcoverage-mapping\"] target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\", \"-fprofile-instr-generate\", \"-fcoverage-mapping\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\", \"-fprofile-instr-generate\", \"-fcoverage-mapping\"] target_cpu=\"x86_64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-MSAN.json b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-MSAN.json
index 245ceb8a26..d07aa1d6a5 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-MSAN.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-MSAN.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-x86_64-Debug-MSAN/Debug",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\", \"-L[START_DIR]/clang_linux/msan\"] sanitize=\"MSAN\" skia_enable_gpu=false skia_use_fontconfig=false target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\", \"-L[START_DIR]/clang_linux/msan\"] sanitize=\"MSAN\" skia_enable_gpu=false skia_use_fontconfig=false target_cpu=\"x86_64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-SK_USE_DISCARDABLE_SCALEDIMAGECACHE.json b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-SK_USE_DISCARDABLE_SCALEDIMAGECACHE.json
index 3714dab689..e0031512c7 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-SK_USE_DISCARDABLE_SCALEDIMAGECACHE.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug-SK_USE_DISCARDABLE_SCALEDIMAGECACHE.json
@@ -97,6 +97,25 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CPPFLAGS": "-DSK_USE_DISCARDABLE_SCALEDIMAGECACHE",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -117,7 +136,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-x86_64-Debug-SK_USE_DISCARDABLE_SCALEDIMAGECACHE/Debug",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-O1\", \"-DSK_USE_DISCARDABLE_SCALEDIMAGECACHE\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\", \"-O1\", \"-DSK_USE_DISCARDABLE_SCALEDIMAGECACHE\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] target_cpu=\"x86_64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug.json b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug.json
index e7caf5af70..e7ea2ca256 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Debug.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-x86_64-Debug/Debug",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\", \"-O1\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] target_cpu=\"x86_64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Chromebook_GLES.json b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Chromebook_GLES.json
index d8c22eddd3..c21fe00b77 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Chromebook_GLES.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Chromebook_GLES.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-x86_64-Release-Chromebook_GLES/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_asmflags=[] extra_cflags=[\"-DMESA_EGL_NO_X11_HEADERS\", \"-I[START_DIR]/chromebook_x86_64_gles/include\"] extra_ldflags=[\"-L[START_DIR]/chromebook_x86_64_gles/lib\", \"-static-libstdc++\", \"-static-libgcc\", \"-fuse-ld=lld\"] is_debug=false skia_use_egl=true skia_use_fontconfig=false skia_use_system_freetype2=false target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_asmflags=[] extra_cflags=[\"-DMESA_EGL_NO_X11_HEADERS\", \"-I[START_DIR]/chromebook_x86_64_gles/include\", \"-DDUMMY_clang_linux_version=42\"] extra_ldflags=[\"-L[START_DIR]/chromebook_x86_64_gles/lib\", \"-static-libstdc++\", \"-static-libgcc\", \"-fuse-ld=lld\"] is_debug=false skia_use_egl=true skia_use_fontconfig=false skia_use_system_freetype2=false target_cpu=\"x86_64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Fast.json b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Fast.json
index 69336a4c60..0523c2b925 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Fast.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Fast.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-x86_64-Release-Fast/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-march=native\", \"-fomit-frame-pointer\", \"-O3\", \"-ffp-contract=off\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\", \"-march=native\", \"-fomit-frame-pointer\", \"-O3\", \"-ffp-contract=off\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false target_cpu=\"x86_64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Mini.json b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Mini.json
index 9b10c34c9c..ad239f90b5 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Mini.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Mini.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-x86_64-Release-Mini/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_component_build=true is_debug=false is_official_build=true skia_enable_effects=false skia_enable_gpu=true skia_enable_pdf=false skia_use_expat=false skia_use_libjpeg_turbo=false skia_use_libpng=false skia_use_libwebp=false skia_use_zlib=false target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_component_build=true is_debug=false is_official_build=true skia_enable_effects=false skia_enable_gpu=true skia_enable_pdf=false skia_use_expat=false skia_use_libjpeg_turbo=false skia_use_libpng=false skia_use_libwebp=false skia_use_zlib=false target_cpu=\"x86_64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-NoDEPS.json b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-NoDEPS.json
index 67008d7a1a..5881e9aa33 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-NoDEPS.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-NoDEPS.json
@@ -68,6 +68,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[START_DIR]/skia/bin/fetch-gn"
     ],
     "cwd": "[START_DIR]/skia",
@@ -87,7 +105,7 @@
       "[START_DIR]/skia/bin/gn",
       "gen",
       "[START_DIR]/skia/out/Build-Debian9-Clang-x86_64-Release-NoDEPS/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false is_official_build=true skia_enable_effects=false skia_enable_fontmgr_empty=true skia_enable_gpu=true skia_enable_pdf=false skia_use_expat=false skia_use_freetype=false skia_use_libjpeg_turbo=false skia_use_libpng=false skia_use_libwebp=false skia_use_vulkan=false skia_use_zlib=false target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false is_official_build=true skia_enable_effects=false skia_enable_fontmgr_empty=true skia_enable_gpu=true skia_enable_pdf=false skia_use_expat=false skia_use_freetype=false skia_use_libjpeg_turbo=false skia_use_libpng=false skia_use_libwebp=false skia_use_vulkan=false skia_use_zlib=false target_cpu=\"x86_64\""
     ],
     "cwd": "[START_DIR]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Vulkan.json b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Vulkan.json
index 39bbba0a75..4421519195 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Vulkan.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Vulkan.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-x86_64-Release-Vulkan/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/linux_vulkan_sdk\" target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\"] is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/linux_vulkan_sdk\" target_cpu=\"x86_64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Vulkan_Coverage.json b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Vulkan_Coverage.json
index f948535734..004aea37bb 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Vulkan_Coverage.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-Clang-x86_64-Release-Vulkan_Coverage.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/clang_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get clang_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-Clang-x86_64-Release-Vulkan_Coverage/Release",
-      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fprofile-instr-generate\", \"-fcoverage-mapping\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\", \"-fprofile-instr-generate\", \"-fcoverage-mapping\"] is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/linux_vulkan_sdk\" target_cpu=\"x86_64\""
+      "--args=cc=\"[START_DIR]/clang_linux/bin/clang\" cxx=\"[START_DIR]/clang_linux/bin/clang++\" extra_cflags=[\"-B[START_DIR]/clang_linux/bin\", \"-DDUMMY_clang_linux_version=42\", \"-fprofile-instr-generate\", \"-fcoverage-mapping\"] extra_ldflags=[\"-B[START_DIR]/clang_linux/bin\", \"-fuse-ld=lld\", \"-fprofile-instr-generate\", \"-fcoverage-mapping\"] is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/linux_vulkan_sdk\" target_cpu=\"x86_64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-EMCC-wasm-Release.json b/infra/bots/recipes/compile.expected/Build-Debian9-EMCC-wasm-Release.json
index 6c077411eb..e311fa2ecd 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-EMCC-wasm-Release.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-EMCC-wasm-Release.json
@@ -97,6 +97,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/emscripten_sdk/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get emscripten_sdk VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -114,7 +128,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-EMCC-wasm-Release/Release",
-      "--args=cc=\"[START_DIR]/emscripten_sdk/emscripten/incoming/emcc\" cxx=\"[START_DIR]/emscripten_sdk/emscripten/incoming/em++\" extra_cflags=[\"-Wno-unknown-warning-option\"] is_debug=false skia_enable_gpu=false skia_use_dng_sdk=false skia_use_fontconfig=false skia_use_freetype=false skia_use_icu=false target_cpu=\"wasm\""
+      "--args=cc=\"[START_DIR]/emscripten_sdk/emscripten/incoming/emcc\" cxx=\"[START_DIR]/emscripten_sdk/emscripten/incoming/em++\" extra_cflags=[\"-Wno-unknown-warning-option\", \"-DDUMMY_emscripten_sdk_version=42\"] is_debug=false skia_enable_gpu=false skia_use_dng_sdk=false skia_use_fontconfig=false skia_use_freetype=false skia_use_icu=false target_cpu=\"wasm\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Debian9-GCC-arm-Release-Chromecast.json b/infra/bots/recipes/compile.expected/Build-Debian9-GCC-arm-Release-Chromecast.json
index f5353813d1..60a3e5d0a6 100644
--- a/infra/bots/recipes/compile.expected/Build-Debian9-GCC-arm-Release-Chromecast.json
+++ b/infra/bots/recipes/compile.expected/Build-Debian9-GCC-arm-Release-Chromecast.json
@@ -97,6 +97,20 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/cast_toolchain/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get cast_toolchain VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -114,7 +128,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-GCC-arm-Release-Chromecast/Release",
-      "--args=ar=\"[START_DIR]/cast_toolchain/armv7a/bin/armv7a-cros-linux-gnueabi-ar\" cc=\"[START_DIR]/cast_toolchain/armv7a/bin/armv7a-cros-linux-gnueabi-gcc\" cxx=\"[START_DIR]/cast_toolchain/armv7a/bin/armv7a-cros-linux-gnueabi-g++\" extra_cflags=[\"-I[START_DIR]/chromebook_arm_gles/include\", \"-DMESA_EGL_NO_X11_HEADERS\", \"-DSK_NO_COMMAND_BUFFER\", \"-Wno-error=unused-function\", \"-g0\"] extra_ldflags=[\"-static-libstdc++\", \"-static-libgcc\", \"-L[START_DIR]/cast_toolchain/armv7a/lib\"] is_debug=false skia_enable_gpu=true skia_use_egl=true skia_use_fontconfig=false skia_use_icu=false skia_use_system_freetype2=false target_cpu=\"arm\""
+      "--args=ar=\"[START_DIR]/cast_toolchain/armv7a/bin/armv7a-cros-linux-gnueabi-ar\" cc=\"[START_DIR]/cast_toolchain/armv7a/bin/armv7a-cros-linux-gnueabi-gcc\" cxx=\"[START_DIR]/cast_toolchain/armv7a/bin/armv7a-cros-linux-gnueabi-g++\" extra_cflags=[\"-I[START_DIR]/chromebook_arm_gles/include\", \"-DMESA_EGL_NO_X11_HEADERS\", \"-DSK_NO_COMMAND_BUFFER\", \"-Wno-error=unused-function\", \"-g0\", \"-DDUMMY_cast_toolchain_version=42\"] extra_ldflags=[\"-static-libstdc++\", \"-static-libgcc\", \"-L[START_DIR]/cast_toolchain/armv7a/lib\"] is_debug=false skia_enable_gpu=true skia_use_egl=true skia_use_fontconfig=false skia_use_icu=false skia_use_system_freetype2=false target_cpu=\"arm\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Mac-Clang-arm64-Debug-Android.json b/infra/bots/recipes/compile.expected/Build-Mac-Clang-arm64-Debug-Android.json
index d0b1d95dd4..b4786d3091 100644
--- a/infra/bots/recipes/compile.expected/Build-Mac-Clang-arm64-Debug-Android.json
+++ b/infra/bots/recipes/compile.expected/Build-Mac-Clang-arm64-Debug-Android.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/android_ndk_darwin/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get android_ndk_darwin VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_/_B_WORK]/skia/bin/gn",
       "gen",
       "[CUSTOM_/_B_WORK]/skia/out/Build-Mac-Clang-arm64-Debug-Android/Debug",
-      "--args=extra_cflags=[\"-O1\"] ndk=\"[START_DIR]/android_ndk_darwin\" target_cpu=\"arm64\""
+      "--args=extra_cflags=[\"-O1\", \"-DDUMMY_ndk_version=42\"] ndk=\"[START_DIR]/android_ndk_darwin\" target_cpu=\"arm64\""
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Win-Clang-arm64-Release-Android.json b/infra/bots/recipes/compile.expected/Build-Win-Clang-arm64-Release-Android.json
index e3bfa31fcb..c610e812ce 100644
--- a/infra/bots/recipes/compile.expected/Build-Win-Clang-arm64-Release-Android.json
+++ b/infra/bots/recipes/compile.expected/Build-Win-Clang-arm64-Release-Android.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]\\resources\\fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_C:\\_B_WORK]\\skia\\infra\\bots\\assets\\android_ndk_windows\\VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get android_ndk_windows VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_C:\\_B_WORK]\\skia\\bin\\fetch-gn"
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]\\skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_C:\\_B_WORK]\\skia\\bin\\gn.exe",
       "gen",
       "[CUSTOM_C:\\_B_WORK]\\skia\\out\\Build-Win-Clang-arm64-Release-Android\\Release",
-      "--args=is_debug=false ndk=\"[START_DIR]\\n\" target_cpu=\"arm64\""
+      "--args=extra_cflags=[\"-DDUMMY_ndk_version=42\"] is_debug=false ndk=\"[START_DIR]\\n\" target_cpu=\"arm64\""
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]\\skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/Build-Win-Clang-x86_64-Release-Vulkan.json b/infra/bots/recipes/compile.expected/Build-Win-Clang-x86_64-Release-Vulkan.json
index babd2e8197..db42141bee 100644
--- a/infra/bots/recipes/compile.expected/Build-Win-Clang-x86_64-Release-Vulkan.json
+++ b/infra/bots/recipes/compile.expected/Build-Win-Clang-x86_64-Release-Vulkan.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]\\resources\\fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_C:\\_B_WORK]\\skia\\infra\\bots\\assets\\clang_win\\VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get clang_win VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_C:\\_B_WORK]\\skia\\bin\\fetch-gn"
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]\\skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_C:\\_B_WORK]\\skia\\bin\\gn.exe",
       "gen",
       "[CUSTOM_C:\\_B_WORK]\\skia\\out\\Build-Win-Clang-x86_64-Release-Vulkan\\Release_x64",
-      "--args=cc=\"clang\" clang_win=\"[START_DIR]\\clang_win\" cxx=\"clang++\" is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]\\win_vulkan_sdk\" target_cpu=\"x86_64\" win_sdk=\"[START_DIR]\\t\\depot_tools\\win_toolchain\\vs_files\\a9e1098bba66d2acccc377d5ee81265910f29272/win_sdk\" win_vc=\"[START_DIR]\\t\\depot_tools\\win_toolchain\\vs_files\\a9e1098bba66d2acccc377d5ee81265910f29272/VC\""
+      "--args=cc=\"clang\" clang_win=\"[START_DIR]\\clang_win\" cxx=\"clang++\" extra_cflags=[\"-DDUMMY_clang_win_version=42\"] is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]\\win_vulkan_sdk\" target_cpu=\"x86_64\" win_sdk=\"[START_DIR]\\t\\depot_tools\\win_toolchain\\vs_files\\a9e1098bba66d2acccc377d5ee81265910f29272/win_sdk\" win_vc=\"[START_DIR]\\t\\depot_tools\\win_toolchain\\vs_files\\a9e1098bba66d2acccc377d5ee81265910f29272/VC\""
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]\\skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/alternate_repo.json b/infra/bots/recipes/compile.expected/alternate_repo.json
index 26027bd6e7..601a419c26 100644
--- a/infra/bots/recipes/compile.expected/alternate_repo.json
+++ b/infra/bots/recipes/compile.expected/alternate_repo.json
@@ -97,6 +97,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_C:\\_B_WORK]/skia/infra/bots/assets/clang_win/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get clang_win VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_C:\\_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]/skia",
@@ -116,7 +134,7 @@
       "[CUSTOM_C:\\_B_WORK]/skia/bin/gn.exe",
       "gen",
       "[CUSTOM_C:\\_B_WORK]/skia/out/Build-Win-Clang-x86_64-Release-Vulkan/Release_x64",
-      "--args=cc=\"clang\" clang_win=\"[START_DIR]/clang_win\" cxx=\"clang++\" is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/win_vulkan_sdk\" target_cpu=\"x86_64\" win_sdk=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/win_sdk\" win_vc=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/VC\""
+      "--args=cc=\"clang\" clang_win=\"[START_DIR]/clang_win\" cxx=\"clang++\" extra_cflags=[\"-DDUMMY_clang_win_version=42\"] is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/win_vulkan_sdk\" target_cpu=\"x86_64\" win_sdk=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/win_sdk\" win_vc=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/VC\""
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]/skia",
     "env": {
diff --git a/infra/bots/recipes/compile.expected/trybot.json b/infra/bots/recipes/compile.expected/trybot.json
index 980b88f748..f0453d15a4 100644
--- a/infra/bots/recipes/compile.expected/trybot.json
+++ b/infra/bots/recipes/compile.expected/trybot.json
@@ -101,6 +101,24 @@
     "cmd": [
       "python",
       "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_C:\\_B_WORK]/skia/infra/bots/assets/clang_win/VERSION",
+      "/path/to/tmp/"
+    ],
+    "env": {
+      "CC": "/usr/bin/clang",
+      "CXX": "/usr/bin/clang++"
+    },
+    "infra_step": true,
+    "name": "Get clang_win VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[CUSTOM_C:\\_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]/skia",
@@ -120,7 +138,7 @@
       "[CUSTOM_C:\\_B_WORK]/skia/bin/gn.exe",
       "gen",
       "[CUSTOM_C:\\_B_WORK]/skia/out/Build-Win-Clang-x86_64-Release-Vulkan/Release_x64",
-      "--args=cc=\"clang\" clang_win=\"[START_DIR]/clang_win\" cxx=\"clang++\" is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/win_vulkan_sdk\" target_cpu=\"x86_64\" win_sdk=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/win_sdk\" win_vc=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/VC\""
+      "--args=cc=\"clang\" clang_win=\"[START_DIR]/clang_win\" cxx=\"clang++\" extra_cflags=[\"-DDUMMY_clang_win_version=42\"] is_debug=false skia_enable_vulkan_debug_layers=false skia_vulkan_sdk=\"[START_DIR]/win_vulkan_sdk\" target_cpu=\"x86_64\" win_sdk=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/win_sdk\" win_vc=\"[START_DIR]/t/depot_tools/win_toolchain/vs_files/a9e1098bba66d2acccc377d5ee81265910f29272/VC\""
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]/skia",
     "env": {