GN: get Angle compiling on Windows.

Angle does not yet link, but it does compile.

I chickened out and wrote cp.py to be the copy tool on Windows.  I've got all platforms using it for consistency.


CQ_INCLUDE_TRYBOTS=master.client.skia.compile:Build-Ubuntu-GCC-x86_64-Release-ANGLE-Trybot


GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3533

Change-Id: I15f4b63a47121528b2fd2672c26c62765966147c
Reviewed-on: https://skia-review.googlesource.com/3533
Reviewed-by: Mike Klein <mtklein@chromium.org>
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>

2 files changed, 61 insertions, 1 deletions

diff --git a/gn/BUILD.gn b/gn/BUILD.gn
index df45ada0f5..c972735915 100644
--- a/gn/BUILD.gn
+++ b/gn/BUILD.gn
@@ -399,6 +399,36 @@ toolchain("msvc") {
     description = "link {{output}}"
   }
 
+  tool("solink") {
+    dllname = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
+    libname = "${dllname}.lib"
+    pdbname = "${dllname}.pdb"
+    rspfile = "${dllname}.rsp"
+
+    command = "$env_setup$bin/link.exe /nologo /IMPLIB:$libname /DLL /OUT:$dllname /PDB:$pdbname @$rspfile"
+    outputs = [
+      dllname,
+      libname,
+      pdbname,
+    ]
+    default_output_extension = ".dll"
+    default_output_dir = "{{root_out_dir}}"
+
+    link_output = libname
+    depend_output = libname
+    runtime_outputs = [
+      dllname,
+      pdbname,
+    ]
+
+    # I don't quite understand this.  Aping Chrome's toolchain/win/BUILD.gn.
+    restat = true
+
+    # inputs_newline works around a fixed per-line buffer size in the linker.
+    rspfile_content = "{{inputs_newline}} {{libs}} {{solibs}} {{ldflags}}"
+    description = "link {{output}}"
+  }
+
   tool("link") {
     exename = "{{root_out_dir}}/{{target_output_name}}{{output_extension}}"
     pdbname = "$exename.pdb"
@@ -422,6 +452,12 @@ toolchain("msvc") {
     command = "cmd.exe /c echo > {{output}}"
     description = "stamp {{output}}"
   }
+
+  tool("copy") {
+    cp_py = rebase_path("cp.py")
+    command = "python.exe $cp_py {{source}} {{output}}"
+    description = "copy {{source}} {{output}}"
+  }
 }
 
 toolchain("gcc_like") {
@@ -499,7 +535,8 @@ toolchain("gcc_like") {
   }
 
   tool("copy") {
-    command = "ln -f {{source}} {{output}} 2>/dev/null || (rm -rf {{output}} && cp -af {{source}} {{output}})"
+    cp_py = rebase_path("cp.py")
+    command = "python $cp_py {{source}} {{output}}"
     description = "copy {{source}} {{output}}"
   }
 }
diff --git a/gn/cp.py b/gn/cp.py
new file mode 100644
index 0000000000..eedfcb2c7e
--- /dev/null
+++ b/gn/cp.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python
+#
+# Copyright 2016 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import os
+import shutil
+import sys
+
+src, dst = sys.argv[1:]
+
+if os.path.exists(dst):
+  if os.path.isdir(dst):
+    shutil.rmtree(dst)
+  else:
+    os.remove(dst)
+
+if os.path.isdir(src):
+  shutil.copytree(src, dst)
+else:
+  shutil.copy2(src, dst)