Index: llvm/trunk/utils/release/merge-git.sh =================================================================== --- llvm/trunk/utils/release/merge-git.sh +++ llvm/trunk/utils/release/merge-git.sh @@ -0,0 +1,92 @@ +#!/bin/bash +#===-- merge-git.sh - Merge commit to the stable branch --------------------===# +# +# The LLVM Compiler Infrastructure +# +# This file is distributed under the University of Illinois Open Source +# License. +# +#===------------------------------------------------------------------------===# +# +# This script will merge an svn revision to a git repo using git-svn while +# preserving the svn commit message. +# +# NOTE: This script has only been tested with the per-project git repositories +# and not with the monorepo. +# +# In order to use this script, you must: +# 1) Checkout the stable branch you would like to merge the revision into. +# 2) Correctly configure the branch as an svn-remote by adding the following to +# your .git/config file for your git repo (replace xy with the major/minor +# version of the release branch. e.g. release_50 or release_60): +# +#[svn-remote "release_xy"] +#url = https://llvm.org/svn/llvm-project/llvm/branches/release_xy +#fetch = :refs/remotes/origin/release_xy +# +# Once the script completes successfully, you can push your changes with +# git-svn dcommit +# +#===------------------------------------------------------------------------===# + + +usage() { + echo "usage: `basename $0` [OPTIONS]" + echo " -rev NUM The revision to merge into the project" +} + +while [ $# -gt 0 ]; do + case $1 in + -rev | --rev | -r ) + shift + rev=$1 + ;; + -h | -help | --help ) + usage + ;; + * ) + echo "unknown option: $1" + echo "" + usage + exit 1 + ;; + esac + shift +done + +if [ -z "$rev" ]; then + echo "error: need to specify a revision" + echo + usage + exit 1 +fi + +# Rebuild revision map +git svn find-rev r$rev origin/master &>/dev/null + +git_hash=`git svn find-rev r$rev origin/master` + +if [ -z "$git_hash" ]; then + echo "error: could not determine git commit for r$rev" + exit 1 +fi + +commit_msg=`svn log -r $rev https://llvm.org/svn/llvm-project/` +ammend="--amend" + +git cherry-pick $git_hash +if [ $? -ne 0 ]; then + echo "" + echo "** cherry-pick failed enter 'e' to exit or 'c' when you have finished resolving the conflicts:" + read option + case $option in + c) + ammend="" + ;; + *) + exit 1 + ;; + esac +fi + +git commit $ammend -m "Merging r$rev:" -m "$commit_msg"