94 lines
2 KiB
Bash
Executable file
94 lines
2 KiB
Bash
Executable file
#!/usr/bin/env sh
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#
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# Keeps a git directory synced by automatically committing every x seconds.
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# After y number of runs without changes automatically pushes the directory to a remote.
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# time in seconds to check for changes to commit
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TIME_TO_COMMIT=${GS_TIME_TO_COMMIT:-120}
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# amount of times to check for changes *without changes occurring* to push to origin
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UNCHANGED_RUNS_TO_PUSH=${GS_UNCHANGED_RUNS_TO_PUSH:-30}
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# logging verbosity level -- 0=error, 1=info, 2=debug
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VERBOSITY=${GS_LOG_VERBOSITY:-1}
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set_target() {
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[ -z "$GS_TARGETDIR" ] && [ -z "$1" ] && {
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msg "ERROR: git-sync requires a target directory to keep in sync to be passed in." 0
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exit 1
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}
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DIR="${GS_TARGETDIR:-$1}"
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}
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commit() {
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run_git pull --ff-only --ff
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msg "Committing changes to $DIR"
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run_git add .
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# shellcheck disable=2039
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run_git commit --no-gpg-sign -m "Git sync: $(date +%F_%R) from ${HOSTNAME:-"$HOST"}"
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}
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push() {
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msg "No changes for $((UNCHANGED_RUNS_TO_PUSH * TIME_TO_COMMIT)) seconds, pushing to origin"
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run_git push
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}
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should_commit() {
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if [ "$(run_git diff-files --name-only | wc -l)" -eq 0 ]; then
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msg "No changes to commit in $DIR" 2
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false
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else
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msg "Found changes to commit in $DIR"
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true
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fi
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}
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should_push() {
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if [ "$no_change_cycle" -ge "$UNCHANGED_RUNS_TO_PUSH" ]; then
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true
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else
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false
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fi
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}
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run_git() {
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git -C "$DIR" "$@"
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}
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# echos its first argument
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# verbosity level optionally set through second argument
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msg() {
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lvl=${2:-1}
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[ "$lvl" -gt "$VERBOSITY" ] && return 0
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echo "$1"
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}
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watch_changes() {
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no_change_cycle=0
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while true; do
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if should_commit; then
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commit
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no_change_cycle=0
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fi
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if should_push; then
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push
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no_change_cycle=-9999
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fi
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msg "No changes for $((no_change_cycle * TIME_TO_COMMIT)) of $((UNCHANGED_RUNS_TO_PUSH * TIME_TO_COMMIT)) seconds, going back to sleep for $((TIME_TO_COMMIT)) seconds." 2
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no_change_cycle=$((no_change_cycle + 1))
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sleep "$TIME_TO_COMMIT"
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done
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}
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main() {
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set_target "$1"
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watch_changes
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}
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main "$1"
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