Add build targets for constructing the Bazel.io Jekyll tree.

This patch adds pkg_tar build targets to site/, which can be used to combine
the Jekyll files under site/ with static Bootstrap and Font Awesome resources
under third_party.

Combining the site files with the generated Build Encyclopedia and Skylark
Library documentation will be done in a future change.

--
MOS_MIGRATED_REVID=121654239

1 files changed, 67 insertions, 0 deletions

diff --git a/site/BUILD b/site/BUILD
index 3683386159..2cc97369b1 100644
--- a/site/BUILD
+++ b/site/BUILD
@@ -1,3 +1,5 @@
+load("@bazel_tools//tools/build_defs/pkg:pkg.bzl", "pkg_tar")
+
 exports_files(
     ["docs/bazel-user-manual.html"],
 )
@@ -7,3 +9,68 @@ filegroup(
     srcs = glob(["**"]),
     visibility = ["//:__pkg__"],
 )
+
+filegroup(
+    name = "jekyll-srcs",
+    srcs = glob(
+        ["**/*"],
+        exclude = [
+            "BUILD",
+            "jekyll-tree.sh",
+            "*.swp",
+        ],
+    ),
+)
+
+pkg_tar(
+    name = "jekyll-files",
+    files = [":jekyll-srcs"],
+    strip_prefix = ".",
+)
+
+pkg_tar(
+    name = "bootstrap-css",
+    files = ["//third_party/css/bootstrap:bootstrap_css"],
+    package_dir = "assets",
+    strip_prefix = "/third_party/css/bootstrap",
+)
+
+pkg_tar(
+    name = "bootstrap-images",
+    files = ["//third_party/css/bootstrap:bootstrap_images"],
+    package_dir = "assets",
+    strip_prefix = "/third_party/css/bootstrap",
+)
+
+pkg_tar(
+    name = "font-awesome-css",
+    files = ["//third_party/css/font_awesome:font_awesome_css"],
+    package_dir = "assets",
+    strip_prefix = "/third_party/css/font_awesome",
+)
+
+pkg_tar(
+    name = "font-awesome-font",
+    files = ["//third_party/css/font_awesome:font_awesome_font"],
+    package_dir = "assets",
+    strip_prefix = "/third_party/css/font_awesome",
+)
+
+pkg_tar(
+    name = "bootstrap-js",
+    files = ["//third_party/javascript/bootstrap:bootstrap_js"],
+    package_dir = "assets",
+    strip_prefix = "/third_party/javascript/bootstrap",
+)
+
+pkg_tar(
+    name = "jekyll-tree",
+    deps = [
+        ":bootstrap-css",
+        ":bootstrap-images",
+        ":bootstrap-js",
+        ":font-awesome-css",
+        ":font-awesome-font",
+        ":jekyll-files",
+    ],
+)