merge pull request #12 from k2s/master

grails-app/conf/DefaultGrassConfig.groovy

@@ -1,19 +1,22 @@
-grass {
-    sass_dir = "./src/stylesheets"
-
-    css_dir = "./web-app/css"
-
-    images_dir = "web-app/images"
-
-    // default is true
-    relative_assets = true
-
-    // default is true
-    line_comments = true
-
-    // other options: nested, expanded, compact, compressed
-    output_style = "compact"
-
-    // scss or sass
-    framework_output_type = "scss"
-}
+grass {
+    sass_dir = "./src/stylesheets"
+
+    css_dir = "./web-app/css"
+
+    images_dir = "web-app/images"
+
+    // default is true
+    relative_assets = true
+
+    // default is true
+    line_comments = true
+
+    // other options: nested, expanded, compact, compressed
+    output_style = "compact"
+
+    // scss or sass
+    framework_output_type = "scss"
+
+    // what to do when Tomcat is configured: "watch" (default), "compile", "print", otherwise do nothing
+    do_on_start = "watch"
+}

scripts/_Events.groovy

@@ -2,5 +2,5 @@ includeTargets << new File(compassSassPluginDir, "scripts/_GetCompassInvoker.gro
 
 eventConfigureTomcat = {
     compass.killCompass()
-    compass.watch()
+    compass.execute()
 }

src/groovy/grails/plugins/sass/CompassInvoker.groovy

@@ -59,6 +59,24 @@ class CompassInvoker {
         runCompassCommandInThread(['watch'] + getCompileArgs(null))
     }
 
+    void execute() {
+        def what = config.grass.containsKey("do_on_start") ? config.grass.do_on_start : "watch"
+        switch (what) {
+            case "compile":
+                compile() { msg ->
+                    event("StatusError", [msg])
+                }
+                break
+            case "watch":
+                watch()
+                break
+            case "print":
+                String[] command = ['jruby', '-S', 'compass', ['watch'] + getCompileArgs(null)].flatten()
+                System.out.append("Execute manually if needed: ${command.join(' ')}\n")
+                break
+        }
+    }
+
     void installBlueprint() {
         def installBlueprintCommand = ['create', '--using', 'blueprint', '--syntax', (config.grass?.framework_output_type ?: "scss")]