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pinniped/pipelines/shared-tasks/create-or-update-pr/task.sh
2025-07-01 12:10:03 -07:00

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#!/usr/bin/env bash
# Copyright 2020-2025 the Pinniped contributors. All Rights Reserved.
# SPDX-License-Identifier: Apache-2.0
set -euo pipefail
branch="${BRANCH:-"pinny/bump-deps"}"
cd pinniped
# Print the current status to the log.
git status
# Prepare to be able to do commits and pushes.
git config user.email "pinniped-ci-bot@users.noreply.github.com"
git config user.name "Pinny"
git remote add https_origin "https://${GH_TOKEN}@github.com/vmware/pinniped.git"
# Add all the changed files.
git add .
# Print the current status to the log.
git status
# Did we just stage any changes?
staged=$(git --no-pager diff --staged)
if [[ "$staged" == "" ]]; then
# Nothing to commit. We are done.
echo "No changes to any files detected. Done."
exit 0
fi
# Check if the branch already exists on the remote.
new_branch="no"
if [[ -z "$(git ls-remote https_origin "$branch")" ]]; then
echo "The branch does not already exist, so create it."
git checkout -b "$branch"
git status
new_branch="yes"
else
echo "The branch already exists, so pull it."
# Stash our changes before using git checkout and git reset, which both can throw away local changes.
git status
git stash
# Fetch all the remote branches so we can use one of them.
git fetch https_origin
# The branch already exists, so reuse it.
git checkout "$branch"
# Pull to sync up commits with the remote branch.
git pull --rebase --autostash
# Throw away all previous commits on the branch and set it up to look like main again.
git reset --hard main
# Bring back our changes and stage them again.
git stash pop
git add .
git status
fi
# Show diff for the log.
echo "Found changes to commit:"
echo
git --no-pager diff --staged
echo
# Commit.
echo "Committing changes to branch $branch. New branch? $new_branch."
git commit -m "Bump dependencies"
# Push.
if [[ "$new_branch" == "yes" ]]; then
# Push the new branch to the remote.
echo "Pushing the new branch."
git push --set-upstream https_origin "$branch"
else
# Force push the existing branch to the remote.
echo "Force pushing the existing branch."
git push --force-with-lease
fi
# Now check if there is already a PR open for our branch.
# If there is already an open PR, then we just updated it by force pushing the branch.
# Note that using the gh CLI without login depends on setting the GH_TOKEN env var.
open_pr=$(gh pr list --head "$branch" --json title --jq '. | length')
if [[ "$open_pr" == "0" ]]; then
# There is no currently open PR for this branch, so open a new PR for this branch
# against main, and set the title and body.
echo "Creating PR."
gh pr create --head "$branch" --base main \
--title "Bump dependencies" --body "Automatically bumped all go.mod direct dependencies and/or images in dockerfiles."
fi