bin/datomic.in: Add "datomic(1)" commandHEADmain

1 files changed, 85 insertions, 0 deletions

diff --git a/bin/datomic.in b/bin/datomic.in
new file mode 100755
index 0000000..2f60912
--- /dev/null
+++ b/bin/datomic.in
@@ -0,0 +1,85 @@
+#!/bin/sh
+set -euo pipefail
+
+
+usage() {
+	cat <<-'EOF'
+		Usage:
+		  datomic backup DBFILE TODIR
+		  datomic gc     DBFILE
+	EOF
+}
+
+
+ACTION="${1:-}"
+DBFILE="${2:-}"
+TODIR="${3:-}"
+
+if [ -z "$ACTION" ]; then
+	echo 'Missing ACTION.' >&2
+	usage >&2
+	exit 2
+fi
+
+if [ -z "$DBFILE" ]; then
+	echo 'Missing DBFILE.' >&2
+	usage >&2
+	exit 2
+fi
+
+if [ "$ACTION" = 'backup' ] && [ -z "$TODIR" ]; then
+	echo 'Missing TODIR.' >&2
+	usage >&2
+	exit 2
+fi
+
+
+
+lastroot() (
+	cd "$TODIR"/datomic/roots
+	find * | sort -n | tail -n1
+)
+
+backupcmd() {
+	java \
+		-server                                  \
+		-Xms4g                                   \
+		-Xmx4g                                   \
+		--class-path '@SYSCONFDIR@/:@JAVADIR@/*' \
+		clojure.main                             \
+		-m backup                                \
+		"$@"
+}
+
+
+case "$ACTION" in
+	(backup)
+		backupcmd backup datomic:sql://app?jdbc:sqlite:"$DBFILE" file:"$TODIR"/datomic
+		backupcmd verify  file:"$TODIR"/datomic true "$(lastroot)"
+		sqlite3 "$DBFILE" ".backup '$TODIR/sqlite.db'"
+		{
+			sqlite3 "$DBFILE" .dump > "$TODIR"/dump.sql.next
+			mv "$TODIR"/dump.sql.next "$TODIR"/dump.sql
+		}
+		{
+			sqlite3 "$TODIR"/restored.db < @SYSCONFDIR@/init.sql > /dev/null
+			backupcmd restore file:"$TODIR"/datomic datomic:sql://app?jdbc:sqlite:"$TODIR"/restored.db
+		}
+		;;
+	(gc)
+		exec java \
+			-server                                  \
+			-Xms4g                                   \
+			-Xmx4g                                   \
+			--class-path '@SYSCONFDIR@/:@JAVADIR@/*' \
+			clojure.main                             \
+			-m datomic.tools.gc-db                   \
+			datomic:sql://app?jdbc:sqlite:"$DBFILE"  \
+			"$(date --date="$(date +'%Y-%m-01') - 3 months" -Is)"
+		;;
+	(*)
+		printf 'Bad ACTION: "%s"\n' "$ACTION" >&2
+		usage >&2
+		exit 2
+		;;
+esac