1 files changed, 146 insertions, 0 deletions
diff --git a/src/scripts/gc.sh b/src/scripts/gc.sh
new file mode 100755
index 0000000..e037f3c
--- /dev/null
+++ b/src/scripts/gc.sh
@@ -0,0 +1,146 @@
+#!/bin/sh
+set -eu
+
+usage() {
+	cat <<-'EOF'
+		Usage:
+		  gc [TYPE]
+		  gc -h
+	EOF
+}
+
+help() {
+	cat <<-'EOF'
+
+
+		Options:
+		  -h, --help    show this message
+
+		  TYPE          what to do GC on (default: all):
+		                - guix
+		                - deploy
+		                - trash
+		                - tmpdir
+		                - logs
+
+
+		GC the server, deleting old, unusable data, in order to free
+		disk space system-wide.
+
+
+		Examples:
+
+		  Just run it, for all:
+
+		    $ gc
+
+
+		  Cleanup tmpdir:
+
+		    $ gc tmpdir
+	EOF
+}
+
+
+for flag in "$@"; do
+	case "$flag" in
+		--)
+			break
+			;;
+		--help)
+			usage
+			help
+			exit
+			;;
+		*)
+			;;
+	esac
+done
+
+while getopts 'h' flag; do
+	case "$flag" in
+		h)
+			usage
+			help
+			exit
+			;;
+		*)
+			usage >&2
+			exit 2
+			;;
+	esac
+done
+shift $((OPTIND - 1))
+
+
+if [ "$(id -un)" != 'root' ]; then
+	printf 'This script must be run as root.\n\n' >&2
+	usage >&2
+	exit 2
+fi
+
+
+disk() {
+	df -h / /mnt/backup/ |
+		tail -n +2 |
+		awk '{ printf "%s\t%s/%s\t%s\n", $4, $3, $2, $6 }'
+}
+
+today() {
+	date '+%Y-%m-%d'
+}
+
+gc_guix() {
+	sudo -i guix system delete-generations 1m
+	sudo -i guix gc -d 1m
+}
+
+gc_deploy() {
+	find /opt/deploy \
+		! -path /opt/deploy -prune \
+		-type d \
+		-not -name "$(today)*" \
+		-exec rm -rvf "{}" ';'
+}
+
+gc_trash() {
+	yes | sudo -i trash-empty
+}
+
+gc_tmpdir() {
+	find "${TMPDIR:-/tmp}"    -atime +10 -exec rm -vf "{}" ';'
+}
+
+gc_logs() {
+	find /var/log/ci/ -atime +10 -exec rm -vf "{}" ';'
+}
+
+
+gc_all() {
+	gc_guix
+	gc_deploy
+	gc_trash
+	gc_tmpdir
+	gc_logs
+}
+
+
+TYPE="${1:-all}"
+CMD=gc_"$TYPE"
+if ! command -v "$CMD" >/dev/null; then
+	printf 'Invalid TYPE: "%s".\n\n' "$TYPE" >&2
+	usage >&2
+	exit 2
+fi
+
+BEFORE="$(disk)"
+set -x
+"$CMD"
+set +x
+AFTER="$(disk)"
+
+cat <<-EOF
+	Disk space:
+	  before: $BEFORE
+	  after:  $AFTER
+EOF