Wrapper script for GitHub Gist repositories. Allows keeping multiple Gist files in one directory and one command updates.

gist

#!/bin/bash -e

# gist - GitHub Gist tool.
# Created by Stefan Hamminga <stefan@prjct.net>. Use any of these licenses: MIT,
# GPL v2.0 or higher, LGPL v2 or higher, or CC BY-4.0.
# Repository: https://gist.github.com/44233d48eeff4c510829.git

usage() {
    echo -e "
\e[1mgist\e[0m -  Wrapper script for GitHub Gist repositories. Allows keeping multiple
        Gist files in one directory.

Usage:
    \e[1mgist clone https://gist.github.com/my_gist_id.git\e[0m
    \e[1mgist clone git@gist.github.com:my_gist_id.git\e[0m
        Use either SSH or HTTP git url to clone a gist. if no '.gist' directory
        exists, one will be created. Each gist Git repository is stored here,
        repository files are linked to the initial directory by symlink.
    \e[1mgist pull my_gist_file\e[0m
        Runs a 'git pull' on the repository corresponding to the specified file.
    \e[1mgist push my_gist_file [commit message]\e[0m
        Commits 'my_gist_file' to the appropriate repository and pushes the
        update to GitHub. If no commit message is provided an automated message
        will be provided.
"
	exit $1
}

if [ "$1" = "" ]; then
    usage 0
fi

case "$1" in
	clone)
		shift
		GIST_ID=`echo $1 | sed -r 's,.*[/:]([^:/]+).git,\1,'`
		if [ "$GIST_ID" = "" ]; then
			echo "Error parsing URL: $1"
			usage 2
		fi
		if [ ! -d "./.gist" ]; then
			mkdir .gist
		fi
		cd .gist
		git clone $1
		cd ..
		find .gist/${GIST_ID}/ -maxdepth 1 -not -path '*/\.*' -type f -exec ln -s "{}" \;
		;;
	pull)
		shift
		GIST_REPO=`readlink "$1" | sed -r 's,.*(.gist/[^/]+/).*,\1,'`
		if [ ! -d "${GIST_REPO}/.git" ]; then
			echo "Error, unable to locate git repo at: $GIST_REPO"
			usage 3
		fi
        git -C "${GIST_REPO}" add "${FILE}"
		git -C "${GIST_REPO}" commit -m "Automated local updates"
		git -C "${GIST_REPO}" pull
		;;
	push)
		shift
		GIST_REPO=`readlink "$1" | sed -r 's,.*(.gist/[^/]+/).*,\1,'`
        FILE=`readlink "$1" | sed -r 's,.*/([^/]+)$,\1,'`
		shift
		if [ ! -d "${GIST_REPO}/.git" ]; then
			echo "Error, unable to locate git repo at: $GIST_REPO"
			usage 4
		fi
		git -C "${GIST_REPO}" add "${FILE}"
		if [ "$1" != "" ]; then
			git -C "${GIST_REPO}" commit -m "$*"
		else
			git -C "${GIST_REPO}" commit -m "Automated update"
		fi
		git -C "${GIST_REPO}" push
		;;
	*)
        echo "Error, no idea what to do with: '$0 $*'"
		usage 1
		;;
esac