Merge branch 'master' of github.com:faustinoaq/watcher

spec/spec_helper.cr

@@ -1,4 +1,12 @@
 require "spec"
 require "../src/watcher"
 
-TEST_FILE = "src/watcher.cr"
+TEST_FILE = "src/watcher.cr"
+
+module Watcher
+
+  # Allow to read interval value
+  def self.interval
+    @@interval
+  end
+end

spec/watcher_spec.cr

@@ -7,18 +7,32 @@ describe Watcher do
   end
 
   it "verify Watcher::WatchEvent.event.change" do
-    Watcher.watch TEST_FILE do |event|
+    Watcher.watch(TEST_FILE) do |event|
       event.status = true
       event.status.should eq(true)
       break
     end
   end
 
   it "verify Watcher::WatchEvent.event.files" do
-    Watcher.watch TEST_FILE do |event|
+    Watcher.watch(TEST_FILE) do |event|
       event.files[TEST_FILE] = timestamp = Watcher.timestamp_for(TEST_FILE)
       event.files.should eq({TEST_FILE => timestamp})
       break
     end
   end
+
+  it "verify default WatcherEvent interval" do
+    Watcher.watch(TEST_FILE) do |event|
+      event.interval.should eq(1)
+      break
+    end
+  end
+
+  it "change WatcherEvent interval" do
+    Watcher.watch(TEST_FILE, 2) do |event|
+      event.interval.should eq(2)
+      break
+    end
+  end
 end

src/watcher.cr

@@ -3,8 +3,15 @@ require "./watcher/*"
 module Watcher
   TIMESTAMPS = {} of String => String
 
+  # Class to save file changes
   private class WatchEvent
     property status = false, files = {} of String => String
+    getter interval
+
+    def initialize(@interval : Int32)
+    end
+
+    # Allow to yield a block when a file changes
     def on_change
       yield files if status
     end
@@ -29,13 +36,13 @@ module Watcher
   end
 
   # Allow to watch file changes using Watcher.watch
-  def self.watch(files)
-    event = WatchEvent.new
+  def self.watch(files, interval = 1)
+    event = WatchEvent.new(interval)
     loop do
       event = scanner(files, event)
       yield event
       event.files.clear
-      sleep 1
+      sleep event.interval
     end
   end
 end