Now watching a dir works and will delay the build based on a configurable amount of time.

config/loader.go

@@ -9,6 +9,7 @@ type config struct {
   Views string `toml:"views"`
   Layout string `toml:"layout"`
   Target string `toml:"target"`
+  WatchDelay string `toml:"watch_delay"`
 }
 
 var Settings config

example/pages/test.md

@@ -11,4 +11,3 @@ Hi, I am a test file.
 * sdf
 * sa
 * fs
-* a

example/ssgod.toml

@@ -1,3 +1,4 @@
 views = "pages"
 layout = "pages/layouts/main.html"
 target = "public"
+watch_delay = "1s"

main.go

@@ -10,6 +10,7 @@ import (
   "path/filepath"
   "os"
   "flag"
+  "time"
   "text/template"
   "zedshaw.games/ssgod/config"
   "github.com/yuin/goldmark"
@@ -160,21 +161,37 @@ func RenderPages() {
   if err != nil { log.Fatalf("can't walk content") }
 }
 
+func WatchMatches(name string) bool {
+  return filepath.Ext(name) == ".html" || filepath.Ext(name) == ".md"
+}
+
 func WatchDir() {
   watcher, err := fsnotify.NewWatcher()
   if err != nil { log.Fatal(err) }
+
   defer watcher.Close()
 
+  wait_time, err := time.ParseDuration(config.Settings.WatchDelay)
+  if err != nil { log.Fatal(err) }
+
+  doit := time.NewTimer(wait_time)
+  doit.Stop()
+
+  log.Println("WATCHING directory", config.Settings.Views)
+
   go func() {
     for {
       select {
         case event, ok := <-watcher.Events:
           if !ok { return }
           log.Println("event: ", event)
-          if event.Has(fsnotify.Write) {
+
+          if WatchMatches(event.Name) {
             log.Println("modified file: ", event.Name)
-            RenderPages()
+            doit.Reset(wait_time)
           }
+        case <-doit.C:
+          RenderPages()
         case err, ok := <-watcher.Errors:
           if !ok { return }
           log.Println("error: ", err)