Stub clang plugin to check consistency of the Blink GC infrastructure.

tools/clang/scripts/update.sh

Index: tools/clang/scripts/update.sh
diff --git a/tools/clang/scripts/update.sh b/tools/clang/scripts/update.sh
index aef39e80ed0d816ba7ee4f1c7634278da6b8a0e8..8132b8f2b53029530e596b28fa8055114322e4e0 100755
--- a/tools/clang/scripts/update.sh
+++ b/tools/clang/scripts/update.sh
@@ -9,6 +9,7 @@
 # https://code.google.com/p/chromium/wiki/UpdatingClang
 # Reverting problematic clang rolls is safe, though.
 CLANG_REVISION=193323
+PLUGIN_REVISION=
 
 THIS_DIR="$(dirname "${0}")"
 LLVM_DIR="${THIS_DIR}/../../../third_party/llvm"
@@ -19,6 +20,7 @@ CLANG_TOOLS_EXTRA_DIR="${CLANG_DIR}/tools/extra"
 COMPILER_RT_DIR="${LLVM_DIR}/projects/compiler-rt"
 ANDROID_NDK_DIR="${LLVM_DIR}/../android_tools/ndk"
 STAMP_FILE="${LLVM_BUILD_DIR}/cr_build_revision"
+ARCHIVE_REVISION="${CLANG_REVISION}${PLUGIN_REVISION}"
 
 # ${A:-a} returns $A if it's set, a else.
 LLVM_REPO_URL=${LLVM_URL:-https://llvm.org/svn/llvm-project}
@@ -34,7 +36,7 @@ mac_only=
 run_tests=
 bootstrap=
 with_android=yes
-chrome_tools="plugins"
+chrome_tools="plugins blink_gc_plugin"
 
 if [[ "${OS}" = "Darwin" ]]; then
   with_android=
@@ -122,8 +124,8 @@ fi
 if [[ -f "${STAMP_FILE}" ]]; then
   PREVIOUSLY_BUILT_REVISON=$(cat "${STAMP_FILE}")
   if [[ -z "$force_local_build" ]] && \
-       [[ "${PREVIOUSLY_BUILT_REVISON}" = "${CLANG_REVISION}" ]]; then
-    echo "Clang already at ${CLANG_REVISION}"
+       [[ "${PREVIOUSLY_BUILT_REVISON}" = "${ARCHIVE_REVISION}" ]]; then
+    echo "Clang already at ${ARCHIVE_REVISION}"
     exit 0
   fi
 fi
@@ -160,7 +162,7 @@ if [[ -z "$force_local_build" ]]; then
   # Check if there's a prebuilt binary and if so just fetch that. That's faster,
   # and goma relies on having matching binary hashes on client and server too.
   CDS_URL=https://commondatastorage.googleapis.com/chromium-browser-clang
-  CDS_FILE="clang-${CLANG_REVISION}.tgz"
+  CDS_FILE="clang-${ARCHIVE_REVISION}.tgz"
   CDS_OUT_DIR=$(mktemp -d -t clang_download.XXXXXX)
   CDS_OUTPUT="${CDS_OUT_DIR}/${CDS_FILE}"
   if [ "${OS}" = "Linux" ]; then
@@ -182,12 +184,12 @@ if [[ -z "$force_local_build" ]]; then
     rm -rf "${LLVM_BUILD_DIR}/Release+Asserts"
     mkdir -p "${LLVM_BUILD_DIR}/Release+Asserts"
     tar -xzf "${CDS_OUTPUT}" -C "${LLVM_BUILD_DIR}/Release+Asserts"
-    echo clang "${CLANG_REVISION}" unpacked
-    echo "${CLANG_REVISION}" > "${STAMP_FILE}"
+    echo clang "${ARCHIVE_REVISION}" unpacked
+    echo "${ARCHIVE_REVISION}" > "${STAMP_FILE}"
     rm -rf "${CDS_OUT_DIR}"
     exit 0
   else
-    echo Did not find prebuilt clang at r"${CLANG_REVISION}", building
+    echo Did not find prebuilt clang at r"${ARCHIVE_REVISION}", building
   fi
 fi
 
@@ -311,12 +313,16 @@ done
 
 if [[ -n "$run_tests" ]]; then
   # Run a few tests.
-  PLUGIN_SRC_DIR="${THIS_DIR}/../plugins"
-  "${PLUGIN_SRC_DIR}/tests/test.sh" "${LLVM_BUILD_DIR}/Release+Asserts"
+  for CHROME_TOOL_DIR in ${chrome_tools}; do
+    TOOL_SRC_DIR="${THIS_DIR}/../${CHROME_TOOL_DIR}"
+    if [[ -f "${TOOL_SRC_DIR}/tests/test.sh" ]]; then
+      "${TOOL_SRC_DIR}/tests/test.sh" "${LLVM_BUILD_DIR}/Release+Asserts"
+    fi
+  done
   cd "${LLVM_BUILD_DIR}"
   make check-all
   cd -
 fi
 
 # After everything is done, log success for this revision.
-echo "${CLANG_REVISION}" > "${STAMP_FILE}"
+echo "${ARCHIVE_REVISION}" > "${STAMP_FILE}"