dashboard: make git dashboard the default

Also bump the watcher version, so the old watcher doesn't try to write
to the new dashboard.

Change-Id: I7f62ad937fe162dadfd1222f56a3c5e493be9a61
Reviewed-on: https://go-review.googlesource.com/1357
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

dashboard/app/app.yaml

@@ -11,11 +11,11 @@ api_version: go1
 handlers:
 - url: /static
   static_dir: static
-- url: /(|gccgo/|git/)log/.+
+- url: /(|gccgo/|hg/)log/.+
   script: _go_app
-- url: /(|gccgo/|git/)(|commit|packages|result|perf-result|tag|todo|perf|perfdetail|perfgraph|updatebenchmark)
+- url: /(|gccgo/|hg/)(|commit|packages|result|perf-result|tag|todo|perf|perfdetail|perfgraph|updatebenchmark)
   script: _go_app
-- url: /(|gccgo/|git/)(init|buildtest|key|perflearn|_ah/queue/go/delay)
+- url: /(|gccgo/|hg/)(init|buildtest|key|perflearn|_ah/queue/go/delay)
   script: _go_app
   login: admin
 

dashboard/app/build/dash.go

@@ -21,9 +21,10 @@ func handleFunc(path string, h http.HandlerFunc) {
 
 // Dashboard describes a unique build dashboard.
 type Dashboard struct {
-	Name     string     // This dashboard's name and namespace
-	Prefix   string     // The path prefix (no trailing /)
-	Packages []*Package // The project's packages to build
+	Name      string     // This dashboard's name (eg, "Go")
+	Namespace string     // This dashboard's namespace (eg, "" (default), "Git")
+	Prefix    string     // The path prefix (no trailing /)
+	Packages  []*Package // The project's packages to build
 }
 
 // dashboardForRequest returns the appropriate dashboard for a given URL path.
@@ -31,8 +32,8 @@ func dashboardForRequest(r *http.Request) *Dashboard {
 	if strings.HasPrefix(r.URL.Path, gccgoDash.Prefix) {
 		return gccgoDash
 	}
-	if strings.HasPrefix(r.URL.Path, gitDash.Prefix) {
-		return gitDash
+	if strings.HasPrefix(r.URL.Path, hgDash.Prefix) {
+		return goDash
 	}
 	return goDash
 }
@@ -40,11 +41,10 @@ func dashboardForRequest(r *http.Request) *Dashboard {
 // Context returns a namespaced context for this dashboard, or panics if it
 // fails to create a new context.
 func (d *Dashboard) Context(c appengine.Context) appengine.Context {
-	// No namespace needed for the original Go dashboard.
-	if d.Name == "Go" {
+	if d.Namespace == "" {
 		return c
 	}
-	n, err := appengine.Namespace(c, d.Name)
+	n, err := appengine.Namespace(c, d.Namespace)
 	if err != nil {
 		panic(err)
 	}
@@ -52,17 +52,19 @@ func (d *Dashboard) Context(c appengine.Context) appengine.Context {
 }
 
 // the currently known dashboards.
-var dashboards = []*Dashboard{goDash, gitDash, gccgoDash}
+var dashboards = []*Dashboard{goDash, hgDash, gccgoDash}
 
-// goDash is the dashboard for the main go repository.
-var goDash = &Dashboard{
-	Name:     "Go",
-	Prefix:   "",
-	Packages: goPackages,
+// hgDash is the dashboard for the old Mercural Go repository.
+var hgDash = &Dashboard{
+	Name:      "Mercurial",
+	Namespace: "", // Used to be the default.
+	Prefix:    "/hg",
+	Packages:  hgPackages,
 }
 
-// goPackages is a list of all of the packages built by the main go repository.
-var goPackages = []*Package{
+// hgPackages is a list of all of the packages
+// built by the old Mercurial Go repository.
+var hgPackages = []*Package{
 	{
 		Kind: "go",
 		Name: "Go",
@@ -114,16 +116,16 @@ var goPackages = []*Package{
 	},
 }
 
-// gitDash is the dashboard for the main go repository on git.
-var gitDash = &Dashboard{
-	Name:     "Git",
-	Prefix:   "/git",
-	Packages: gitPackages,
+// goDash is the dashboard for the main go repository.
+var goDash = &Dashboard{
+	Name:      "Go",
+	Namespace: "Git",
+	Prefix:    "",
+	Packages:  goPackages,
 }
 
-// gitPackages is a list of all of the packages built by the main go repository
-// on git.
-var gitPackages = []*Package{
+// goPackages is a list of all of the packages built by the main go repository.
+var goPackages = []*Package{
 	{
 		Kind: "go",
 		Name: "Go",
@@ -182,8 +184,9 @@ var gitPackages = []*Package{
 
 // gccgoDash is the dashboard for gccgo.
 var gccgoDash = &Dashboard{
-	Name:   "Gccgo",
-	Prefix: "/gccgo",
+	Name:      "Gccgo",
+	Namespace: "Gccgo",
+	Prefix:    "/gccgo",
 	Packages: []*Package{
 		{
 			Kind: "gccgo",

dashboard/app/build/handler.go

@@ -27,7 +27,7 @@ import (
 )
 
 const commitsPerPage = 30
-const watcherVersion = 2
+const watcherVersion = 3 // must match dashboard/watcher/watcher.go's watcherVersion
 
 // commitHandler retrieves commit data or records a new commit.
 //

dashboard/app/build/ui.go

@@ -435,24 +435,24 @@ func repoURL(dashboard, hash, packagePath string) (string, error) {
 		if dashboard == "Gccgo" {
 			return "https://code.google.com/p/gofrontend/source/detail?r=" + hash, nil
 		}
-		if dashboard == "Git" {
-			return "https://go.googlesource.com/go/+/" + hash, nil
-		}
 		return "https://golang.org/change/" + hash, nil
 	}
-	if dashboard == "Git" {
-		repo := strings.TrimPrefix(packagePath, "golang.org/x/")
-		return "https://go.googlesource.com/" + repo + "/+/" + hash, nil
+
+	// TODO(adg): remove this old hg stuff, one day.
+	if dashboard == "Mercurial" {
+		m := repoRe.FindStringSubmatch(packagePath)
+		if m == nil {
+			return "", errors.New("unrecognized package: " + packagePath)
+		}
+		url := "https://code.google.com/p/" + m[1] + "/source/detail?r=" + hash
+		if len(m) > 2 {
+			url += "&repo=" + m[2][1:]
+		}
+		return url, nil
 	}
-	m := repoRe.FindStringSubmatch(packagePath)
-	if m == nil {
-		return "", errors.New("unrecognized package: " + packagePath)
-	}
-	url := "https://code.google.com/p/" + m[1] + "/source/detail?r=" + hash
-	if len(m) > 2 {
-		url += "&repo=" + m[2][1:]
-	}
-	return url, nil
+
+	repo := strings.TrimPrefix(packagePath, "golang.org/x/")
+	return "https://go.googlesource.com/" + repo + "/+/" + hash, nil
 }
 
 // tail returns the trailing n lines of s.

dashboard/watcher/watcher.go

@@ -26,11 +26,16 @@ import (
 	"time"
 )
 
-const goBase = "https://go.googlesource.com/"
+const (
+	goBase         = "https://go.googlesource.com/"
+	watcherVersion = 3 // must match dashboard/app/build/handler.go's watcherVersion
+	origin         = "origin/"
+	master         = origin + "master" // name of the master branch
+)
 
 var (
 	repoURL      = flag.String("repo", goBase+"go", "Repository URL")
-	dashboard    = flag.String("dash", "https://build.golang.org/git/", "Dashboard URL (must end in /)")
+	dashboard    = flag.String("dash", "https://build.golang.org/", "Dashboard URL (must end in /)")
 	keyFile      = flag.String("key", defaultKeyFile, "Build dashboard key file")
 	pollInterval = flag.Duration("poll", 10*time.Second, "Remote repo poll interval")
 	network      = flag.Bool("network", true, "Enable network calls (disable for testing)")
@@ -283,7 +288,7 @@ func (r *Repo) postCommit(c *Commit) error {
 		return nil
 	}
 
-	u := *dashboard + "commit?version=2&key=" + dashboardKey
+	u := fmt.Sprintf("%vcommit?version=%v&key=%v", *dashboard, watcherVersion, dashboardKey)
 	resp, err := http.Post(u, "text/json", bytes.NewReader(b))
 	if err != nil {
 		return err
@@ -306,11 +311,6 @@ func (r *Repo) postCommit(c *Commit) error {
 	return nil
 }
 
-const (
-	origin = "origin/"
-	master = origin + "master" // name of the master branch
-)
-
 // update looks for new commits and branches,
 // and updates the commits and branches maps.
 func (r *Repo) update(noisy bool) error {