118 lines
2.6 KiB
Bash
Executable File
118 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# update a git repository and copy its contents to a directory
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set -o errexit
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set -o nounset
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set -o pipefail
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if [[ "${TRACE-0}" == "1" ]]; then
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set -o xtrace
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fi
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help() {
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echo "Update a git repository and copy the files to OUTDIR"
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echo "Intended for use with static websites"
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echo
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echo "Usage: ./site-update.sh [-b BRANCH|d SRCDIR|f FILE|h|p] OUTDIR"
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echo "Options"
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echo "b BRANCH git branch to update, defaults to the current branch in SRCDIR"
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echo "d SRCDIR directory containing git repository to update, defaults to current working directory"
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echo "f FILE update a batch of repositories, as defined in FILE"
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echo "h print this help message"
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echo "p publish files only, do not update"
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}
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get_changes() {
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git fetch origin
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if [[ $(git status | grep behind) ]]; then
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git merge origin/"${BRANCH}"
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fi
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}
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change_directory() {
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if [[ -n "$SRCDIR" ]]; then
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cd "${SRCDIR}"
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fi
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}
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checkout_branch() {
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if [[ -n "$BRANCH" ]]; then
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git checkout "${BRANCH}"
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else
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BRANCH=$(git branch --show-current)
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fi
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}
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copy_to_dest () {
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cp -r "${SRCDIR}/." "${OUTDIR}"
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}
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update_publish() {
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if [[ -n "$SRCDIR" ]]; then
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cd "${SRCDIR}"
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fi
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if [[ -n "$BRANCH" ]]; then
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git checkout "${BRANCH}"
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else
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BRANCH=$(git branch --show-current)
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fi
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if [[ "$PUBONLY" == false ]]; then
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get_changes
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fi
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if diff "${SRCDIR}" "${OUTDIR}" >/dev/null; then
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echo "No changes detected."
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else
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copy_to_dest
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fi
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}
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main() {
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srcdirlen=${#SRCDIR}
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if [[ ${SRCDIR:(-1)} == '/' ]]; then
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SRCDIR=${SRCDIR:0:-1}
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fi
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if [[ -f "$FILE" ]]; then
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while read -r src out rem; do
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# use rem as dummy variable to guarantee out countains one word
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echo "${src} | ${out} | ${rem}"
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done < "${FILE}"
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else
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update_publish
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fi
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}
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SRCDIR=$(pwd)
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BRANCH=
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FILE=
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PUBONLY=false
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OUTDIR=
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while getopts ":hd:f:b:p" option; do
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case $option in
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b) # select branch
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BRANCH=$OPTARG;;
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f) # file listing directories
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FILE=$OPTARG;;
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d) # directory to act on
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SRCDIR=$OPTARG;;
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h) #display help
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help
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exit;;
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p) #publish only, do not update
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PUBONLY=true;;
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\?) #invalid option
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echo "Error: Invalid option"
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exit;;
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esac
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done
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if [[ -z "$FILE" ]]; then
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OUTDIR="${@:$OPTIND:1}"
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echo "$OUTDIR"
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if [[ ! -d "$OUTDIR" ]]; then
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echo "Directory \"${OUTDIR}\" does not exist"
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exit 1
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fi
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fi
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main
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