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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,SC1091

. "$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

Optionally you can specify the head and base target branch yourself as arguments

Useful to call from aliases/functions to quickly open a PR. See .bash.d/git.sh where this is used via github_push_pr_preview.sh to automated this workflow with a handful of keystrokes

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="[<target_base_branch> <head_branch>]"

help_usage "$@"

#min_args 1 "$@"

max_args 2 "$@"

check_github_origin

owner_repo="$(github_origin_owner_repo)"

# checks are done inside github_origin_owner_repo() now

#if [ -z "$owner_repo" ]; then

# die 'Failed to find origin remote pointing to github.com! Are we in a github checkout?'

#fi

default_branch="${1:-$(default_branch)}"

current_branch="${2:-$(current_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"

else

echo

echo "\$BROWSER environment variable not set and not on Mac to use default browser, not opening browser"

fi