Move version macros to public V8 header.

tools/v8-info.sh

 #!/bin/bash
 # Copyright 2013 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
@@ skipping 12 matching lines @@
 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
 ########## Global variable definitions
 
 BASE_URL="https://code.google.com/p/v8/source/list"
-VERSION="src/version.cc"
-MAJOR="MAJOR_VERSION"
-MINOR="MINOR_VERSION"
-BUILD="BUILD_NUMBER"
-PATCH="PATCH_LEVEL"
 
 V8="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 
 ########## Function definitions
 
 cd $V8
 
 usage() {
 cat << EOF
 usage: $0 OPTIONS
@@ skipping 56 matching lines @@
     echo $rev $svn $id
   done
 }
 
 svn_rev() {
   git svn find-rev $2 svn/$1
 }
 
 v8_rev() {
   cd $(git rev-parse --show-toplevel)
-  rev=$(git show $1:$VERSION \
+  # Newer revisions have version defines in include/v8.h.
+  rev=$(git show $1:include/v8.h \
       | grep "#define" \
-      | grep "$MAJOR\|$MINOR\|$BUILD\|$PATCH" \
+      | grep "V8_\(MAJOR_VERSION\|MINOR_VERSION\|BUILD_NUMBER\|PATCH_LEVEL\)" \
       | grep -o "[0-9]\+$" \
       | tr "\\n" ".")
+  if [[ -z ${rev%?} ]]; then
+    # Compatibility with revisions that have version defines in src/version.cc.
+    rev=$(git show $1:src/version.cc \
+        | grep "#define" \
+        | grep "\(MAJOR_VERSION\|MINOR_VERSION\|BUILD_NUMBER\|PATCH_LEVEL\)" \
+        | grep -o "[0-9]\+$" \
+        | tr "\\n" ".")
+  fi
   echo ${rev%?}
 }
 
 merges_to_branch() {
   git cherry -v svn/trunk svn/$1 | while read merge; do
     h=$(echo $merge | cut -d" " -f2)
     svn=$(svn_rev $1 $h)
     merges=$(echo $merge | grep -o "r[0-9]\+")
     rev=$(v8_rev $h)
     echo $rev r$svn $merges
@@ skipping 23 matching lines @@
     p)  echo $(point_merges "$(tag_log $(v8_hash $OPTARG)^1)")
         ;;
     u)  url_for $OPTARG
         ;;
     ?)  echo "Illegal option: -$OPTARG"
         usage
         exit 1
         ;;
   esac
 done