Automatically increase the process ulimit to maximum available. fixes #168.

commands/hugo.go

@@ -25,6 +25,7 @@ import (
     "path/filepath"
     "strings"
     "sync"
+    "syscall"
     "time"
 )
 
@@ -155,6 +156,20 @@ func buildSite(watching ...bool) (err error) {
 }
 
 func NewWatcher(port int) error {
+    var rLimit syscall.Rlimit
+    err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rLimit)
+    if err != nil {
+        fmt.Println("Error Getting Rlimit ", err)
+    }
+    if rLimit.Cur < rLimit.Max {
+        rLimit.Max = 999999
+        rLimit.Cur = 999999
+        err = syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rLimit)
+        if err != nil {
+            fmt.Println("Error Setting rLimit ", err)
+        }
+    }
+
     watcher, err := watcher.New(1 * time.Second)
     var wg sync.WaitGroup