Setup gclient and presubmit file.

This CL adds the necessary files to use gclient and the depot_tools with
the SPIRV-Tools directory. This allows doing things like `git cl format`
to format code pre-upload and `git cl presubmit -uf` to run presubmit
checks over the code.

The dependencies are all added to the DEPS file and will be
auto-downloaded. They are all pin'd to specific revisions so everyone
has the same checkout. Clang is included in the checkout so it will be
consistent over usages.

Use clang-format

1 files changed, 85 insertions, 0 deletions

diff --git a/DEPS b/DEPS
new file mode 100644
index 00000000..f2146886
--- /dev/null
+++ b/DEPS
@@ -0,0 +1,85 @@
+use_relative_paths = True
+
+vars = {
+  'chromium_git': 'https://chromium.googlesource.com',
+  'github': 'https://github.com',
+
+  'buildtools_revision': 'ab7b6a7b350dd15804c87c20ce78982811fdd76f',
+  'clang_revision': 'abe5e4f9dc0f1df848c7a0efa05256253e77a7b7',
+  'effcee_revision': '04b624799f5a9dbaf3fa1dbed2ba9dce2fc8dcf2',
+  'googletest_revision': '98a0d007d7092b72eea0e501bb9ad17908a1a036',
+  're2_revision': '6cf8ccd82dbaab2668e9b13596c68183c9ecd13f',
+  'spirv_headers_revision': '3ce3e49d73b8abbf2ffe33f829f941fb2a40f552',
+}
+
+deps = {
+  'buildtools':
+      Var('chromium_git') + '/chromium/buildtools.git@' +
+          Var('buildtools_revision'),
+
+  'external/spirv-headers':
+      Var('github') +  '/KhronosGroup/SPIRV-Headers.git@' +
+          Var('spirv_headers_revision'),
+
+  'external/googletest':
+      Var('github') + '/google/googletest.git@' + Var('googletest_revision'),
+
+  'external/effcee':
+      Var('github') + '/google/effcee.git@' + Var('effcee_revision'),
+
+  'external/re2':
+      Var('github') + '/google/re2.git@' + Var('re2_revision'),
+
+  'tools/clang':
+      Var('chromium_git') + '/chromium/src/tools/clang@' + Var('clang_revision')
+}
+
+recursedeps = [
+  # buildtools provides clang_format, libc++, and libc++api
+  'buildtools',
+]
+
+hooks = [
+  # Pull clang-format binaries using checked-in hashes.
+  {
+    'name': 'clang_format_win',
+    'pattern': '.',
+    'action': [ 'download_from_google_storage',
+                '--no_resume',
+                '--platform=win32',
+                '--no_auth',
+                '--bucket', 'chromium-clang-format',
+                '-s', 'SPIRV-Tools/buildtools/win/clang-format.exe.sha1',
+    ],
+  },
+  {
+    'name': 'clang_format_mac',
+    'pattern': '.',
+    'action': [ 'download_from_google_storage',
+                '--no_resume',
+                '--platform=darwin',
+                '--no_auth',
+                '--bucket', 'chromium-clang-format',
+                '-s', 'SPIRV-Tools/buildtools/mac/clang-format.sha1',
+    ],
+  },
+  {
+    'name': 'clang_format_linux',
+    'pattern': '.',
+    'action': [ 'download_from_google_storage',
+                '--no_resume',
+                '--platform=linux*',
+                '--no_auth',
+                '--bucket', 'chromium-clang-format',
+                '-s', 'SPIRV-Tools/buildtools/linux64/clang-format.sha1',
+    ],
+  },
+  {
+    # Pull clang
+    'name': 'clang',
+    'pattern': '.',
+    'action': ['python',
+               'SPIRV-Tools/tools/clang/scripts/update.py'
+    ],
+  },
+]