Add files from google3 to Git repo.

tools/git_clone_to_google3.sh

+#!/bin/bash
+# Copyright 2014 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Crude script to clone the git skia repo into the current directory, which
+# must be a CitC client.
+#
+# Usage:
+#      ./tools/git_clone_to_google3.sh
+
+source gbash.sh || exit
+DEFINE_string skia_rev "" "Git hash of Skia revision to clone, default LKGR."
+
+set -x -e
+
+# To run this script after making edits, run:
+# g4 revert -k git_clone_to_google3.sh
+# To get the file back into your CL, run:
+# g4 edit git_clone_to_google3.sh
+#g4 opened | grep -q "//depot" && gbash::die "Must run in a clean client."
+
+# Checkout LKGR of Skia in a temp location.
+TMP=$(gbash::make_temp_dir)
+pushd "${TMP}"
+git clone https://skia.googlesource.com/skia
+cd skia
+git fetch
+if [ -z "${FLAGS_skia_rev}" ]; then
+  # Retrieve last known good revision.
+  MY_DIR="$(gbash::get_absolute_caller_dir)"
+  FLAGS_skia_rev="$(${MY_DIR}/get_skia_lkgr.sh)"
+fi
+git checkout --detach "${FLAGS_skia_rev}"
+
+# Rsync to google3 location.
+popd
+# Use multichange client in case there are too many files for nomultichange. http://b/7292343
+g4 client --set_option multichange
+# Use allwrite to simplify opening the correct files after rsync.
+g4 client --set_option allwrite
+# Filter directories added to CitC.
+rsync -avzJ \
+  --delete \
+  --delete-excluded \
+  --include=/bench \
+  --include=/dm \
+  --include=/gm \
+  --include=/include \
+  --include=/src \
+  --exclude=/src/animator \
+  --include=/tests \
+  --include=/third_party \
+  --include=/tools \
+  --include=/.git \
+  '--exclude=/*/' \
+  --include=/third_party/etc1 \
+  --include=/third_party/ktx \
+  --include=/third_party/libwebp \
+  '--exclude=/third_party/*/' \
+  "${TMP}/skia/" \
+  "./"
+
+# Open added/changed files for add/edit.
+g4 reopen
+# Revert files that are equivalent to the checked in version.
+g4 revert -a
+
+# Tell CitC to ignore .git and .gitignore.
+find . \
+  \( -name .git \
+  -o -name .gitignore \
+  \) \
+  -execdir g4 revert -k \{\} \;
+
+# Tell Git to ignore README.google and BUILD.
+echo README.google >> .git/info/exclude
+echo BUILD >> .git/info/exclude
+g4 revert README.google
+g4 revert BUILD
+
+# Use google3 version of OWNERS, README.google, and BUILD.
+find . \
+  \( -name OWNERS -o -name README.google -o -name BUILD \) \
+  -exec git update-index --skip-worktree \{\} \; \
+  -execdir g4 revert \{\} \;
+
+# Tell git to ignore files left out of the rsync (i.e. "deleted" files).
+git status --porcelain | \
+  grep -e "^ D" | \
+  cut -c 4- | \
+  xargs git update-index --skip-worktree
+