shrub/sh/merge-with-custom-msg

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#!/usr/bin/env bash
usage() {
local error="$1"
cat >&2 <<EOF
Usage:
$0 BRANCH PULL_REQUEST
Synopsis:
Useful script for merging a GitHub pull request with a custom merge commit
message.
Strips "origin" from branch names in title.
Example:
$0 origin/philip/jael-fix 1953
Yields:
Merge branch 'philip/jael-fix' (#1953)
* origin/philip/jael-fix:
jael: process all ships in %full update
Signed-off-by: Jared Tobin <jared@tlon.io>
Error:
-> $error
EOF
exit 1
}
args="$@"
if [[ -z "$args" ]]; then
usage "No arguments specified."
fi
REV=$1
PR=$2
TARGET=$(echo $REV | sed s_origin/__)
MERGE_MSG="Merge branch '$TARGET' (#$PR)"
git merge --no-ff --signoff --log -m "$MERGE_MSG" $REV