141 lines
3.8 KiB
Bash
Executable File
141 lines
3.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -eou pipefail
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help() {
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echo "$0 [-b <branch>] range [end]"
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echo " merges every merge commit present in upstream and missing in <branch> (default: master)."
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echo " If the optional [end] commit is provided, only merges up to [end]."
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echo " If the optional [-b branch] provided, then ."
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echo
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echo "$0 [-b <branch>] select <commit> ... <commit>"
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echo " merges every selected merge commit into <branch> (default: master)"
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echo
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echo "This tool creates a branch and a script that can be executed to create the"
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echo "PR automatically. The script requires the github-cli tool (aka gh)."
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echo ""
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echo "Tip: \`git log --oneline upstream/master --merges\` shows merge commits."
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exit 1
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}
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REMOTE=upstream
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REMOTE_BRANCH="$REMOTE/master"
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LOCAL_BRANCH="master"
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# Makes sure you have a remote "upstream" that is up-to-date
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setup() {
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ret=0
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git fetch "$REMOTE" &> /dev/null || ret="$?"
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if [ ${ret} == 0 ]; then
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return
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fi
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echo "Adding remote \"$REMOTE\" with URL git@github.com:bitcoin-core/secp256k1.git. Continue with y"
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read -r yn
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case $yn in
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[Yy]* ) ;;
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* ) exit 1;;
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esac
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git remote add "$REMOTE" git@github.com:bitcoin-core/secp256k1.git &> /dev/null
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git fetch "$REMOTE" &> /dev/null
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}
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range() {
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RANGESTART_COMMIT=$(git merge-base "$REMOTE_BRANCH" "$LOCAL_BRANCH")
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RANGEEND_COMMIT=$(git rev-parse "$REMOTE_BRANCH")
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if [ "$#" = 1 ]; then
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RANGEEND_COMMIT=$1
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fi
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COMMITS=$(git --no-pager log --oneline --merges "$RANGESTART_COMMIT".."$RANGEEND_COMMIT")
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COMMITS=$(echo "$COMMITS" | tac | awk '{ print $1 }' ORS=' ')
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echo "Merging $COMMITS. Continue with y"
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read -r yn
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case $yn in
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[Yy]* ) ;;
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* ) exit 1;;
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esac
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}
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# Process -b <branch> argument
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while getopts "b:" opt; do
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case $opt in
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b)
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LOCAL_BRANCH=$OPTARG
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;;
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\?)
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echo "Invalid option: -$OPTARG" >&2
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;;
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esac
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done
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# Shift off the processed options
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shift $((OPTIND -1))
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if [ "$#" -lt 1 ]; then
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help
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fi
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case $1 in
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range)
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shift
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setup
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range "$@"
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REPRODUCE_COMMAND="$0 -b $LOCAL_BRANCH range $RANGEEND_COMMIT"
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;;
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select)
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shift
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setup
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COMMITS=$*
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REPRODUCE_COMMAND="$0 -b $LOCAL_BRANCH select $@"
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;;
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help)
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help
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;;
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*)
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help
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esac
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TITLE="Upstream PRs"
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BODY=""
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for COMMIT in $COMMITS
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do
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PRNUM=$(git log -1 "$COMMIT" --pretty=format:%s | sed s/'Merge \(bitcoin-core\/secp256k1\)\?#\([0-9]*\).*'/'\2'/)
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TITLE="$TITLE $PRNUM,"
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BODY=$(printf "%s\n%s" "$BODY" "$(git log -1 "$COMMIT" --pretty=format:%s | sed s/'Merge \(bitcoin-core\/secp256k1\)\?#\([0-9]*\)'/'[bitcoin-core\/secp256k1#\2]'/)")
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done
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# Remove trailing ","
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TITLE=${TITLE%?}
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BODY=$(printf "%s\n\n%s\n%s" "$BODY" "This PR can be recreated with \`$REPRODUCE_COMMAND\`." "Tip: Use \`git show --remerge-diff\` to show the changes manually added to the merge commit.")
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echo "-----------------------------------"
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echo "$TITLE"
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echo "-----------------------------------"
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echo "$BODY"
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echo "-----------------------------------"
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# Create branch from PR commit and create PR
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git checkout "$LOCAL_BRANCH"
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git pull --autostash
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git checkout -b temp-merge-"$PRNUM"
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# Escape single quote
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# ' -> '\''
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quote() {
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local quoted=${1//\'/\'\\\'\'}
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printf "%s" "$quoted"
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}
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TITLE=$(quote "$TITLE")
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BODY=$(quote "$BODY")
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BASEDIR=$(dirname "$0")
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FNAME="$BASEDIR/gh-pr-create.sh"
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cat <<EOT > "$FNAME"
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#!/bin/sh
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gh pr create -t '$TITLE' -b '$BODY' --web
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# Remove temporary branch
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git checkout "$LOCAL_BRANCH"
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git branch -D temp-merge-"$PRNUM"
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EOT
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chmod +x "$FNAME"
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echo Run "$FNAME" after solving the merge conflicts
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git merge --no-edit -m "Merge commits '$COMMITS' into temp-merge-$PRNUM" $COMMITS
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