add project_hook and edit_project_hook methods

lib/gitlab/client/projects.rb

@@ -128,6 +128,19 @@ def project_hooks(project, options={})
       get("/projects/#{project}/hooks", :query => options)
     end
 
+    # Gets a project hook.
+    #
+    # @example
+    #   Gitlab.project_hook(42, 5)
+    #   Gitlab.project_hook('gitlab', 5)
+    #
+    # @param  [Integer, String] project The ID or code name of a project.
+    # @param  [Integer] id The ID of a hook.
+    # @return [Gitlab::ObjectifiedHash]
+    def project_hook(project, id)
+      get("/projects/#{project}/hooks/#{id}")
+    end
+
     # Adds a new hook to the project.
     #
     # @example
@@ -140,6 +153,19 @@ def add_project_hook(project, url)
       post("/projects/#{project}/hooks", :body => {:url => url})
     end
 
+    # Updates a project hook URL.
+    #
+    # @example
+    #   Gitlab.edit_project_hook(42, 1, 'https://api.example.net/v1/webhooks/ci')
+    #
+    # @param  [Integer, String] project The ID or code name of a project.
+    # @param  [Integer] id The ID of the hook.
+    # @param  [String] url The hook URL.
+    # @return [Gitlab::ObjectifiedHash] Information about updated hook.
+    def edit_project_hook(project, id, url)
+      put("/projects/#{project}/hooks/#{id}", :body => {:url => url})
+    end
+
     # Deletes a hook from project.
     #
     # @example

spec/gitlab/client/projects_spec.rb

@@ -144,6 +144,21 @@
     end
   end
 
+  describe ".project_hook" do
+    before do
+      stub_get("/projects/1/hooks/1", "project_hook")
+      @hook = Gitlab.project_hook(1, 1)
+    end
+
+    it "should get the correct resource" do
+      a_get("/projects/1/hooks/1").should have_been_made
+    end
+
+    it "should return information about a hook" do
+      @hook.url.should == "https://api.example.net/v1/webhooks/ci"
+    end
+  end
+
   describe ".add_project_hook" do
     before do
       stub_post("/projects/1/hooks", "project_hook")
@@ -160,6 +175,22 @@
     end
   end
 
+  describe ".edit_project_hook" do
+    before do
+      stub_put("/projects/1/hooks/1", "project_hook")
+      @hook = Gitlab.edit_project_hook(1, 1, "https://api.example.net/v1/webhooks/ci")
+    end
+
+    it "should get the correct resource" do
+      body = {:url => "https://api.example.net/v1/webhooks/ci"}
+      a_put("/projects/1/hooks/1").with(:body => body).should have_been_made
+    end
+
+    it "should return information about an edited hook" do
+      @hook.url.should == "https://api.example.net/v1/webhooks/ci"
+    end
+  end
+
   describe ".delete_project_hook" do
     before do
       stub_delete("/projects/1/hooks/1", "project_hook")