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