runif for lockutil

files/lock-util

@@ -1,23 +1,26 @@
 #!/bin/bash
 
+VERSION=230908.0
+
 _help() {
   echo '
 Usage: lock-util {lock-file} [-v] [command] [args]
 Commands:
   create
   exist                ( return 0 if lock exists )
-  old [age in seconds] ( return 0 if file younger than [args] seconds or file not present )
+  old [age in seconds] ( return 0 if file older than [args] seconds or file not present )
+  runif [age in seconds] ( old + create, if file not exist, or older than [arg], then touch file and return 0, else 1 )
   remove
   -v as first argument sets very verbose mode
 
-'
+  '
 }
 LOCKFILE="$1"
 [[ "$2" = "-v" ]] && {
   VERBOSE=on
   COMMAND="$3"
   ARG="$4"
-} || {
+  } || {
   COMMAND="$2"
   ARG="$3"
 }
@@ -80,5 +83,17 @@ _remove() {
   exit $ec
 }
 
+[[ $COMMAND = "runif" ]] && {
+  [[ -z "$ARG" ]] && _help && echo "MISSING ARGUMENT" | $BOXES && exit 1
+  VERBOSE=$VERBOSE "$0" "$LOCKFILE" old "$ARG"
+  ec=$?
+  [[ $ec -eq 0 ]] && {
+    _exist && _remove
+    VERBOSE=$VERBOSE "$0" "$LOCKFILE" create
+    ec=$?
+  }
+  exit $ec
+}
+
 echo Command not recognized
 _help