DevTools: update LASTCHANGE for uploader_iteration.sh

gce/uploader_iteration.sh

 #!/bin/bash
 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This enables bash to treat any unhandled non-zero exit codes as "exceptions"
 set -e
 source $(dirname $0)/uploader_exit_codes.sh
 
 mark_step() {
@@ skipping 111 matching lines @@
     GYP_CHROMIUM_NO_ACTION=1 gclient sync -D -R || exit $EXIT_BLINK_UPDATE
 
     echo "Running GN"
     if [ -d out/Default ]; then
         rm -rf out/Default
     fi
     mkdir -p out/Default
     echo "is_debug=false" > out/Default/args.gn
     gn gen out/Default || exit $EXIT_GYP_DEVTOOLS
 
-    echo "Running ninja"
+    echo "Generating LASTCHANGE files"
     LASTCHANGE_FILE="build/util/LASTCHANGE"
-    echo "LASTCHANGE=$REVISION" > $LASTCHANGE_FILE
+    python build/util/lastchange.py > $LASTCHANGE_FILE
     LASTCHANGE_BLINK_FILE="build/util/LASTCHANGE.blink"

[chenwilliam, 2017/04/20 00:17:43]

I think it might be OK to stop generating this file, but I'm worried that new
commits on previously cut release branches might depend on the LASTCHANGE.blink
file. Doesn't seem to hurt to leave this in here, and I can remove it later.

[dgozman, 2017/04/20 16:49:33]

I vaguley remember the build/util/lastchange.py didn't work for us. Probably,
because of the partial checkout? Now that we have full checkout it should be ok,
right?

     echo "LASTCHANGE=$REVISION" > $LASTCHANGE_BLINK_FILE
 
+    echo "Running ninja"
     ninja -C out/Default devtools_frontend_resources || exit $EXIT_BUILD_FRONTEND
     ZIP_FILE_NAME=devtools_frontend.zip
     ZIP_FILE=$(pwd)/out/$ZIP_FILE_NAME
 
     pushd out/Default/resources/inspector
 
     echo "Creating manifest"
     # Create an AppCache manifest and patch devtools.html and / or inspector.html to point to it
     MANIFEST_FILE_NAME=$REVISION.manifest
     FALLBACK_ENTRIES=
@@ skipping 34 matching lines @@
 
     echo "Creating revs file"
     ZIP_SHA1=$(sha1sum $ZIP_FILE | awk '{print $1}')
     mv $ZIP_FILE "$ZIPS_DIR/$ZIP_SHA1.zip"
     echo "$ZIP_SHA1" > "$REVS_DIR/@$REVISION"
 
     echo "Uploading to storage for revision $REVISION"
     # Comment out the line below for testing.
     gsutil -m cp -n -R $LOCAL_STORAGE_DIR/* $GS_PATH || exit $EXIT_CS_UPLOAD
 done