Script for deploying files to git, for example building documentation and deploying to gh-pages branch on GitHub. https://github.com/jirutka/rake-jekyll#deploy-to-git

git-deploy.sh

#!/bin/sh
# vim: set ts=4:
set -e

: ${DEPLOY_BRANCH:="gh-pages"}
: ${SOURCE_BRANCH:="master"}


die() {
	# bold red
	printf '\033[1;31mERROR:\033[0m %s\n' "$1" >&2
	exit ${2:-2}
}

info() {
	# bold cyan
	printf '\033[1;36m%s\033[0m\n' "$@" >&2
}

init_deploy_branch() {
	local build_dir="$1"

	cd "$build_dir"
	git checkout --orphan "$DEPLOY_BRANCH"
	find . -path ./.git -prune -o -exec rm -rf {} \; 2>/dev/null || :
	cd - >/dev/null
}

has_changes() {
	test -n "$(git status --porcelain)"
}

remote_origin_url() {
	if [ -n "$GH_TOKEN" ]; then
		git config remote.origin.url \
			| sed 's|^git:|https:|' \
			| sed "s|^https://|https://${GH_TOKEN}@|"
	else
		git config remote.origin.url
	fi
}

shield() {
	if [ -n "$GH_TOKEN" ]; then
		eval $@ 2>&1 | sed "s/$GH_TOKEN/*****/g"
	else
		eval $@
	fi
}

build() {
	die 'You must declare function "build"!'
}

default_skip_push() {
	[ -n "$TRAVIS" ] || return 1

	[ "$TRAVIS_PULL_REQUEST" != 'false' ] \
		|| [ "$TRAVIS_BRANCH" != "$SOURCE_BRANCH" ] \
		|| [ "$TRAVIS_BUILD_NUMBER.1" != "$TRAVIS_JOB_NUMBER" ]
}

skip_push() {
	default_skip_push
}

start() {
	local commit_rev="$(git rev-parse --short HEAD)"
	local commit_author="$(git log -n 1 --format='%aN <%aE>')"
	local commit_date="$(git log -n 1 --format='%aD')"
	local build_dir="$(mktemp -q -d "${TMPDIR:-"/tmp"}/docs.XXXX")"

	local remote_url="$(remote_origin_url)"
	test -n "$remote_url" || die 'Failed to get remote.origin.url'

	if [ -n "$TRAVIS" ] && [ -z "$GIT_COMMITTER_NAME" ]; then
		GIT_COMMITTER_NAME='Travis CI'
	fi
	export GIT_COMMITTER_NAME

	shield git clone --progress "$remote_url" "$build_dir"

	git -C "$build_dir" checkout "$DEPLOY_BRANCH" || {
		info "Branch $DEPLOY_BRANCH doesn't exist yet, initializing..."
		init_deploy_branch "$build_dir"
	}

	build "$build_dir"

	cd "$build_dir"

	if ! has_changes; then
		info 'No changes'
		exit 0
	fi

	if skip_push; then
		info 'Skipping push'
		exit 0
	fi

	info 'Commiting changes...'
	git add --all
	git commit \
		--message="Built from $commit_rev" \
		--author="$commit_author" \
		--date="$commit_date"

	info 'Pushing changes to the repository...'
	shield git push --progress "$remote_url" "$DEPLOY_BRANCH:$DEPLOY_BRANCH"

	rm -Rf -- "$build_dir"
}