1 files changed, 37 insertions, 38 deletions
diff --git a/lib/oxidized/hook/slackdiff.rb b/lib/oxidized/hook/slackdiff.rb
index 728e5a7..baaf291 100644
--- a/lib/oxidized/hook/slackdiff.rb
+++ b/lib/oxidized/hook/slackdiff.rb
@@ -10,45 +10,44 @@ class SlackDiff < Oxidized::Hook
   end
 
   def run_hook(ctx)
-    if ctx.node
-      if ctx.event.to_s == "post_store"
-        log "Connecting to slack"
-        Slack.configure do |config|
-           config.token = cfg.token
-           config.proxy = cfg.proxy if cfg.has_key?('proxy')
-        end
-        client = Slack::Client.new
-        client.auth_test
-        log "Connected"
-        # diff snippet - default
-        diffenable = true
-        if cfg.has_key?('diff') == true
-          if cfg.diff == false
-            diffenable = false
-          end
-        end
-        if diffenable == true
-          gitoutput = ctx.node.output.new
-          diff = gitoutput.get_diff ctx.node, ctx.node.group, ctx.commitref, nil
-          title = "#{ctx.node.name.to_s} #{ctx.node.group.to_s} #{ctx.node.model.class.name.to_s.downcase}"
-          log "Posting diff as snippet to #{cfg.channel}"
-          client.files_upload(channels: cfg.channel, as_user: true,
-                              content: diff[:patch].lines.to_a[4..-1].join,
-                              filetype: "diff",
-                              title: title,
-                              filename: "change"
-                             )
-        end
-        # message custom formatted - optional
-        if cfg.has_key?('message') == true
-          log cfg.message
-          msg = cfg.message % {:node => ctx.node.name.to_s, :group => ctx.node.group.to_s, :commitref => ctx.commitref, :model => ctx.node.model.class.name.to_s.downcase}
-          log msg
-          log "Posting message to #{cfg.channel}"
-          client.chat_postMessage(channel: cfg.channel, text: msg,  as_user: true)
-        end
-        log "Finished"
+    return unless ctx.node
+    return unless ctx.event.to_s == "post_store"
+    log "Connecting to slack"
+    Slack.configure do |config|
+      config.token = cfg.token
+      config.proxy = cfg.proxy if cfg.has_key?('proxy')
+    end
+    client = Slack::Client.new
+    client.auth_test
+    log "Connected"
+    # diff snippet - default
+    diffenable = true
+    if cfg.has_key?('diff') == true
+      if cfg.diff == false
+        diffenable = false
+      end
+    end
+    if diffenable == true
+      gitoutput = ctx.node.output.new
+      diff = gitoutput.get_diff ctx.node, ctx.node.group, ctx.commitref, nil
+      unless diff == "no diffs"
+        title = "#{ctx.node.name} #{ctx.node.group} #{ctx.node.model.class.name.to_s.downcase}"
+        log "Posting diff as snippet to #{cfg.channel}"
+        client.files_upload(channels: cfg.channel, as_user: true,
+                            content: diff[:patch].lines.to_a[4..-1].join,
+                            filetype: "diff",
+                            title: title,
+                            filename: "change")
       end
     end
+    # message custom formatted - optional
+    if cfg.has_key?('message') == true
+      log cfg.message
+      msg = cfg.message % { :node => ctx.node.name.to_s, :group => ctx.node.group.to_s, :commitref => ctx.commitref, :model => ctx.node.model.class.name.to_s.downcase }
+      log msg
+      log "Posting message to #{cfg.channel}"
+      client.chat_postMessage(channel: cfg.channel, text: msg, as_user: true)
+    end
+    log "Finished"
   end
 end