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DevOps-Bash-tools/github_pull_request_preview.sh

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#!/usr/bin/env bash
# vim:ts=4:sts=4:sw=4:et
#
# Author: Hari Sekhon
# Date: 2022-07-15 11:16:44 +0100 (Fri, 15 Jul 2022)
#
# https://github.com/HariSekhon/DevOps-Bash-tools
#
# License: see accompanying Hari Sekhon LICENSE file
#
# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
#
# https://www.linkedin.com/in/HariSekhon
#
set -euo pipefail
[ -n "${DEBUG:-}" ] && set -x
srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# shellcheck disable=SC1090
. "$srcdir/lib/github.sh"
# shellcheck disable=SC2034,SC2154
usage_description="
Opens a GitHub Pull Request preview page from the current local branch to the default branch
Useful to call from aliases/functions to quickly push a new branch, preview and raise a PR with a mere couple keystrokes
See .bash.d/git.sh for where this is used
Prints the Pull Request URL, and if on Mac or if \$BROWSER is set then opens it for you in your default browser
Assumes that GitHub is the remote origin, and checks for this for safety
"
# used by usage() in lib/utils.sh
# shellcheck disable=SC2034
usage_args=""
help_usage "$@"
#min_args 1 "$@"
if ! git remote -v | grep -q '^origin.*github.com[/:]'; then
die 'GitHub is not set as remote origin in current repo!'
fi
owner_repo="$(git remote -v | grep -m1 '^origin.*github.com[/:]' | sed 's|.*github.com[:/]||; s/\.git.*//; s/[[:space:]].*//' || :)"
if [ -z "$owner_repo" ]; then
die 'Failed to find origin remote pointing to github.com! Are we in a github checkout?'
fi
current_branch="$(current_branch)"
default_branch="$(default_branch)"
#url="https://github.com/$owner_repo/pull/new/$branch"
# from your current branch to the default branch by default
url="https://github.com/$owner_repo/compare/$default_branch...$current_branch"
echo
echo "Pull Request URL:"
echo
printf '\t%s\n' "$url"
if is_mac; then
echo
echo "Opening Pull Request"
open "$url"
elif [ -n "${BROWSER:-}" ]; then
echo
echo "Opening Pull Request using \$BROWSER"
"$BROWSER" "$url"
fi