Pull Request Generator

mpr

#!/bin/zsh

usage() {
	echo "Usage: mpr [-h]"
	printf "\n"
	echo "Opens or creates a pull-request for the given branch."
	echo "If branch is prefixed with a branch-type (feature/etc),"
	echo "that will be used as a label upon creation."
	printf "\n"
	exit 2
}

yesno() {
	read "?$1 (y/N): " answer
	case ${answer:0:1} in
	    y|Y )
	        echo 1
	    ;;
	    * )
	        echo 0
	    ;;
	esac
}

while getopts 'ph' c; do
  case $c in
    h) usage ;;
  esac
done

BRANCH=$(git rev-parse --abbrev-ref HEAD)
EXISTING_PR=$(hub pr list -h $BRANCH -f "%I")

if [[ "$EXISTING_PR" == "" ]]; then
	echo "No PR found for this branch. Creating."
else
	echo "PR #$EXISTING_PR exists for this branch."
	if [[ "$(yesno 'Would you like to open the PR?')" == "1" ]]; then
		hub pr show $EXISTING_PR
	fi
	exit 0
fi

LABELS=""

if [[ "$BRANCH" == *"/"* ]]; then
	KIND=$(cut -d'/' -f1 <<< $BRANCH)
	LABELS="$LABELS$KIND,"
fi

LABELS=$(echo $LABELS | sed 's/,$//')

DESCRIPTION=$(echo $BRANCH | sed 's/^[A-Za-z]*\///' | sed 's/-/ /g' | sed 's/^\(.\)/\1/g' )
DESCRIPTION=$(echo $DESCRIPTION | awk '{ print toupper(substr($0, 1, 1)) substr($0, 2) }')

if [[ "$(yesno 'Is there a Notion story to attach?')" == "1" ]]; then
	read "?Story URL: " URL
	DESCRIPTION=$(printf "$DESCRIPTION\n\nNotion Story: $URL")
fi

printf "\n"
echo "Creating Pull Request "

echo " - From $BRANCH to master."
echo " - Labels will be: $LABELS"
echo "--------------------------"
echo $DESCRIPTION
echo "--------------------------"
printf "\n"

if [[ "$(yesno 'Ready?')" == "1" ]]; then
	hub pull-request -d -l $LABELS --browse -F - <<< $DESCRIPTION
else
	echo "Would have run:"
	echo "hub pull-request $DRAFT -l $LABELS --browse -F - <<< $DESCRIPTION"
	exit 1
fi