mirror of https://github.com/grpc/grpc.git
parent
71d97f9600
commit
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#!/bin/bash |
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|
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set -euo pipefail |
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ensure_command () { |
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if command -v "$1" 1>/dev/null 2>&1; then |
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return 0 |
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else |
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echo "$1 is not installed. Please install it to proceed." 1>&2 |
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exit 1 |
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fi |
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} |
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|
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ensure_command "curl" |
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ensure_command "egrep" |
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ensure_command "hub" |
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ensure_command "jq" |
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|
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if [ -z "$GITHUB_TOKEN" ]; then |
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echo "A GitHub token is required to run this script. See " \ |
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"https://docs.github.com/en/github/authenticating-to-github/creating-a-personal-access-token" \ |
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" for more information" >/dev/stderr |
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exit 1 |
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fi |
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|
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if [ "$#" != "4" ]; then |
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echo "USAGE: $0 PR_NUMBER GITHUB_USER BACKPORT_BRANCHES REVIEWERS" >/dev/stderr |
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echo " PR_NUMBER: The number for the PR to be backported." >/dev/stderr |
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echo " GITHUB_USER: Your GitHub username." >/dev/stderr |
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echo " BACKPORT_BRANCHES: A space-separated list of branches to which to backport." >/dev/stderr |
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echo " REVIEWERS: A comma-separated list of users add as reviewers and assignees." >/dev/stderr |
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echo "" >/dev/stderr |
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echo "Example: $0 25456 gnossen \"v1.30.x v1.31.x v1.32.x v1.33.x v1.34.x v1.35.x v1.36.x\" \"menghanl,gnossen\"" |
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exit 1 |
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fi |
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|
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echo "This script will create a collection of backport PRs. Make sure the PR to" \ |
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" backport has already been merged. You will probably " \ |
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" have to touch your gnubby a frustrating number of times. C'est la vie." |
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printf "Press any key to continue." |
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read -r RESPONSE </dev/tty |
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printf "\n" |
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|
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PR_NUMBER="$1" |
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GITHUB_USER="$2" |
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BACKPORT_BRANCHES="$3" |
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REVIEWERS="$4" |
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PR_DATA=$(curl -s -u "$GITHUB_USER:$GITHUB_TOKEN" \ |
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-H "Accept: application/vnd.github.v3+json" \ |
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"https://api.github.com/repos/grpc/grpc/pulls/$PR_NUMBER") |
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|
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MERGE_COMMIT=$(echo "$PR_DATA" | jq -r '.merge_commit_sha') |
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PR_TITLE=$(echo "$PR_DATA" | jq -r '.title') |
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PR_DESCRIPTION=$(echo "$PR_DATA" | jq -r '.body') |
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LABELS=$(echo "$PR_DATA" | jq -r '.labels | map(.name) | join(",")') |
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|
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set -x |
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# git fetch origin |
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BACKPORT_PRS="" |
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for BACKPORT_BRANCH in $BACKPORT_BRANCHES; do |
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echo "Backporting $MERGE_COMMIT to $BACKPORT_BRANCH." |
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git checkout "origin/$BACKPORT_BRANCH" |
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BRANCH_NAME="backport_${PR_NUMBER}_to_${BACKPORT_BRANCH}" |
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# To make the script idempotent. |
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git branch -D "$BRANCH_NAME" || true |
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git checkout "$BACKPORT_BRANCH" |
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git checkout -b "$BRANCH_NAME" |
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git cherry-pick -m 1 "$MERGE_COMMIT" |
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BACKPORT_PR=$(hub pull-request -p -m "[Backport] $PR_TITLE" \ |
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-m "*Beep boop. This is an automatically generated backport of #${PR_NUMBER}.*" \ |
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-m "$PR_DESCRIPTION" \ |
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-l "$LABELS" \ |
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-b "$BACKPORT_BRANCH" \ |
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-r "$REVIEWERS" \ |
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-a "$REVIEWERS" | tail -n 1) |
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BACKPORT_PRS+="$BACKPORT_PR\n" |
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# TODO: Turn on automerge once the Github API allows it. |
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done |
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printf "Your backport PRs have been created:\n$BACKPORT_PRS" |
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