Provide version information in help and --version|-V flag

forgebuild.sh

@@ -1,5 +1,7 @@
 #! /bin/bash
 
+VERSION="0.4.0"
+
 # Catch signals so we don't leave zombie tasks behind if we Ctrl^C
 # No idea why but it seems to prevent the script from working? Disable!
 #trap "exit" INT TERM ERR
@@ -77,12 +79,17 @@ debug () {
     [[ $COLORS = 1 ]] && echo -e "\e[36m$(trans debug)\e[0m$(trans $1)" | envsubst > /dev/stderr || echo "$(trans debug)$(trans $1)" | envsubst > /dev/stderr
 }
 
+version() {
+    echo "forgebuild $VERSION"
+}
+
 help () {
-    echo "forgebuild [tasks]"
+    version
+    echo "Usage: forgebuild [tasks]"
     echo "  Trigger updates on \`tasks\` (all tasks by default)"
     echo "ARGS:"
     echo "  -f: force run of tasks regardless of updates on the repository"
-    echo "  -b BASEDIR: consider tasks from BASEDIR, not ~/.forgebuild"
+    echo "  -b BASEDIR: load tasks from BASEDIR (defaults to ~/.forgebuild)"
 }
 
 # DVCS stuff (for tasks with source)
@@ -264,6 +271,9 @@ for arg in "$@"; do
     elif [[ "$arg" = "-h" ]] || [[ "$arg" = "--help" ]]; then
         help
         exit 0
+    elif [[ "$arg" = "-V" ]] || [[ "$arg" = "--version" ]]; then
+        version
+        exit 0
     elif [[ "$arg" = "-b" ]] || [[ "$arg" = "--basedir" ]]; then
         FOUND_BASEDIR=1
     elif [ -x $BASEDIR/$arg ]; then