Merge branch 'pre-receive-wo-satellites' into 'remove-satellites'

Add support of pre-receive hooks without satellites

Implement commit transaction with pre-receive and post-receive hooks for web editor and merge

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

See merge request !1154

1 files changed, 59 insertions, 0 deletions

diff --git a/lib/gitlab/git/hook.rb b/lib/gitlab/git/hook.rb
new file mode 100644
index 00000000000..dd393fe09d2
--- /dev/null
+++ b/lib/gitlab/git/hook.rb
@@ -0,0 +1,59 @@
+module Gitlab
+  module Git
+    class Hook
+      attr_reader :name, :repo_path, :path
+
+      def initialize(name, repo_path)
+        @name = name
+        @repo_path = repo_path
+        @path = File.join(repo_path.strip, 'hooks', name)
+      end
+
+      def exists?
+        File.exist?(path)
+      end
+
+      def trigger(gl_id, oldrev, newrev, ref)
+        return true unless exists?
+
+        changes = [oldrev, newrev, ref].join(" ")
+
+        # function  will return true if succesful
+        exit_status = false
+
+        vars = {
+          'GL_ID' => gl_id,
+          'PWD' => repo_path
+        }
+
+        options = {
+          chdir: repo_path
+        }
+
+        Open3.popen2(vars, path, options) do |stdin, _, wait_thr|
+          exit_status = true
+          stdin.sync = true
+
+          # in git, pre- and post- receive hooks may just exit without
+          # reading stdin. We catch the exception to avoid a broken pipe
+          # warning
+          begin
+            # inject all the changes as stdin to the hook
+            changes.lines do |line|
+              stdin.puts line
+            end
+          rescue Errno::EPIPE
+          end
+
+          stdin.close
+
+          unless wait_thr.value == 0
+            exit_status = false
+          end
+        end
+
+        exit_status
+      end
+    end
+  end
+end