Add button for removing logs

assets/scripts/app/models/job.coffee

@@ -83,6 +83,14 @@ require 'travis/model'
     Travis.ajax.post "/jobs/#{@get('id')}/cancel"
   )
 
+  removeLog: ->
+    Travis.ajax.patch("/jobs/#{@get('id')}/log").then =>
+      @reloadLog()
+
+  reloadLog: ->
+    @clearLog()
+    @get('log').fetch()
+
   requeue: ->
     Travis.ajax.post "/jobs/#{@get('id')}/restart"
 
@@ -125,6 +133,12 @@ require 'travis/model'
       moment(finishedAt).format('lll')
   ).property('finishedAt')
 
+  canRemoveLog: (->
+    # This should somehow get the status of removed log, but unfortunately there is
+    # no easy way to do that at the moment
+    true
+  ).property()
+
 @Travis.Job.reopenClass
   queued: ->
     filtered = Ember.FilteredRecordArray.create(

assets/scripts/app/templates/repos/show/actions.hbs

@@ -1,5 +1,11 @@
 <div id="actions">
   <ul>
+    {{#if view.displayRemoveLog}}
+      <li class="icon" title="Remove Log">
+        <a href="#" {{action "removeLog" target="view"}}
+          {{bind-attr class="view.canRemoveLog::disabled"}}><img class="icon" src="/images/icons/off.svg" width="20"></a>
+      </li>
+    {{/if}}
     {{#if view.displayCancelBuild}}
       <li class="icon" title="Cancel Build">
         <a href="#" {{action "cancelBuild" target="view"}}

assets/scripts/app/views/repo/show.coffee

@@ -193,6 +193,20 @@ Travis.reopen
           else
             Travis.flash(error: 'An error occured when canceling the build')
 
+
+    removeLog: ->
+      if @get('canRemoveLog')
+        job = @get('job') || @get('build.jobs.firstObject')
+        job.removeLog().then ->
+          Travis.flash(success: 'Log has been successfully removed.')
+        , (xhr) ->
+          if xhr.status == 409
+            Travis.flash(error: 'Log can\'t be removed')
+          else if xhr.status == 401
+            Travis.flash(error: 'You don\'t have sufficient access to remove the log')
+          else
+            Travis.flash(error: 'An error occured when removing the log')
+
     cancelJob: ->
       if @get('canCancelJob')
         Travis.flash(notice: 'Job cancellation has been scheduled.')
@@ -246,6 +260,14 @@ Travis.reopen
         Travis.Urls.plainTextLog(id)
     ).property('jobIdForLog')
 
+    canRemoveLog: (->
+      @get('displayRemoveLog') && @get('hasPermission')
+    ).property('displayRemoveLog', 'hasPermission')
+
+    displayRemoveLog: (->
+      (@get('isJobTab') || (@get('isBuildTab') && @get('build.jobs.length') == 1)) && @get('build.jobs.firstObject.canRemoveLog')
+    ).property('isJobTab', 'isBuildTab', 'build.jobs.length', 'job.canRemoveLog')
+
     canCancelBuild: (->
       @get('displayCancelBuild') && @get('hasPermission')
     ).property('displayCancelBuild', 'hasPermission')

assets/scripts/lib/travis/ajax.coffee

@@ -14,6 +14,9 @@ Travis.ajax = Em.Object.create
   post: (url, data, callback) ->
     @ajax(url, 'post', data: data, success: callback)
 
+  patch: (url, data, callback) ->
+    @ajax(url, 'patch', data: data, success: callback)
+
   needsAuth: (method, url) ->
     return true if Travis.ajax.pro
     return true if method != 'GET'