gitea pull request checkout script

gitea-pr-clone.sh

#!/bin/bash

OPTS=$(getopt -o h::s:p:t:w:c:b:a: --long help::,src:,src-dir:,pr:,pull:,tags:,custom:,work-path:,work:,conf:,branch:,auto-run: -n 'gitea-pr-clone.sh' -- "$@")

if [ $? -ne 0 ]; then
	echo "Failed to parse options" >&2
	exit 1
fi

eval set -- "$OPTS"

SRC_DIR="$(realpath ./gitea)"
PR=37630
BRANCH_NAME=""
TAGS="bindata sqlite sqlite_unlock_notify"
WORK_PATH="/opt/gitea-secondary"
CUSTOM_PATH="custom"
CONF_FILE="app.ini"
AUTO_RUN=false

dir_exists() {
	if [ -d "$1" ]; then
		return 0;
	else
		return 1;
	fi
}

is_absolute_path() {
	if [[ $1 == "/*" ]]; then
		return 0;
	else
		return 1;
	fi
}

compute_variables() {
	if ! is_absolute_path $CUSTOM_PATH; then
		CUSTOM_PATH=$WORK_PATH/$CUSTOM_PATH
	fi

	if ! is_absolute_path $CONF_FILE; then
		CONF_FILE=$CUSTOM_PATH/$CONF_FILE
	fi
	if [ -z BRANCH_NAME ]; then
		BRANCH_NAME="pull-$PR"
	fi
}

clone() {
	if ! dir_exists $SRC_DIR; then
		echo "cloning gitea..."
		git clone https://github.com/go-gitea/gitea.git $SRC_DIR
	fi;
	cd $SRC_DIR

	git fetch origin pull/$PR/head:$BRANCH_NAME
	git checkout $BRANCH_NAME
}

build() {
	TAGS="$TAGS" LDFLAGS="-X \"code.gitea.io/gitea/modules/setting.CustomPath=$CUSTOM_PATH\" -X \"code.gitea.io/gitea/modules/setting.AppWorkPath=$WORK_PATH\" -X \"code.gitea.io/gitea/modules/setting.CustomConf=$CONF_FILE\"" make
	return $?
}

main() {
	compute_variables
	clone
	if build; then
		echo "gitea has been built at ${SRC_DIR}/gitea !"
		if [ $AUTO_RUN = "true" ]; then
			echo "starting gitea..."
			${SRC_DIR}/gitea web
		fi
	fi	
}

print_help() {
	cat <<-'EOF'
	OPTIONS:
		-h, --help
			print this help text
		
		-s, --src, --src-dir <directory>
			the source directory to clone the gitea repo into (defaults to "$(pwd)/gitea")

		-p, --pr, --pull <NUMBER>
			the pull request number to fetch and checkout (defaults to 37630)

		-b, --branch <name>
			the name of the branch to use when checking out the pull request (defaults to "pull-<number>")
		
		-t, --tags "tag1 tag2"
			custom tags to include when building. defaults to "bindata sqlite sqlite_unlock_notify"

		-w, --work, --work-path <directory>
			custom work path that gitea will use when built. defaults to "/opt/gitea-secondary"

		--custom <directory>
			where gitea will search for files like custom stylesheets, assets, templates, etc. if non-absolute, will be computed relative to the `work-path` parameter (see above). defaults to "/opt/gitea-secondary/custom"

		-c, --conf <conf-file>
			custom config file name. if non-absolute, is computed relative to the `custom` parameter (see above). defaults to "app.ini"

		-a, --auto-run
			whether or not to automatically start gitea after building. defaults to `false`
EOF
}

while true; do
	case "$1" in
		-h | --help)
			print_help
			exit 0
			;;
		-s | --src | --src-dir)
			SRC_DIR=$2
			shift 2
			;;
		-p | --pr | --pull)
			PR=$2
			shift 2
			;;
		-b | --branch)
			BRANCH_NAME=$2
			shift 2
			;;
		-t | --tags)
			TAGS=$2
			shift 2
			;;
		-w | --work-path | --work)
			WORK_PATH=$2
			shift 2
			;;
		-c | --conf)
			CONF_FILE=$2
			shift 2
			;;
		--custom)
			CUSTOM_PATH=$2
			shift 2
			;;
		--)
			shift
			break
			;;
		*)
			print_help
			exit 1
			;;
	esac
done

main