added code to specify a gopath

.drone.yml

@@ -1,4 +1,6 @@
 image: go1.2
+git:
+  path: github.com/drone/drone
 env:
   - GOROOT=/usr/local/go
 script:

server/queue/worker.go

@@ -170,6 +170,9 @@ func (w *worker) execute(task *BuildTask) error {
 }
 
 func (w *worker) runBuild(task *BuildTask, buf io.Writer) (bool, error) {
+	var path = filepath.Join(task.Repo.Host, task.Repo.Owner, task.Repo.Name)
+	path = git.GitPath(task.Script.Git, path)
+
 	repo := &r.Repo{
 		Name:   task.Repo.Host + task.Repo.Owner + task.Repo.Name,
 		Path:   task.Repo.CloneURL,
@@ -177,7 +180,7 @@ func (w *worker) runBuild(task *BuildTask, buf io.Writer) (bool, error) {
 		Commit: task.Commit.Sha,
 		PR:     task.Commit.PullRequest,
 		//TODO the builder should handle this
-		Dir:   filepath.Join("/var/cache/drone/src", task.Repo.Host, task.Repo.Owner, task.Repo.Name),
+		Dir:   filepath.Join("/var/cache/drone/src", path),
 		Depth: git.GitDepth(task.Script.Git),
 	}
 

shared/build/git/git.go

@@ -13,10 +13,7 @@ type Git struct {
 	Depth *int `yaml:"depth,omitempty"`
 
 	// The name of a directory to clone into.
-	// TODO this still needs to be implemented. this field is
+	Path *string `yaml:"path,omitempty"`
-	//      critical for forked Go projects, that need to clone
-	//      to a specific repository.
-	Path string `yaml:"path,omitempty"`
 }
 
 // GitDepth returns GitDefaultDepth
@@ -29,3 +26,14 @@ func GitDepth(g *Git) int {
 	}
 	return *g.Depth
 }
+
+// GitPath returns the given default path
+// when Git.Path is empty.
+// GitPath returns Git.Path
+// when it is not empty.
+func GitPath(g *Git, defaultPath string) string {
+	if g == nil || g.Path == nil {
+		return defaultPath
+	}
+	return *g.Path
+}