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dashboard: make response format consistent, implement commit GET mode

Browse Source 
R=golang-dev, dsymonds, rsc
CC=golang-dev
https://golang.org/cl/5437113
This commit is contained in:
Andrew Gerrand 2011-12-02 16:05:12 +11:00
parent 2a876beb18
commit 6c165d7ac4
2 changed files with 104 additions and 68 deletions
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131
misc/dashboard/app/build/build.go
View File

@ -193,29 +193,42 @@ func (t *Tag) Valid() os.Error {
return nil
}
// commitHandler records a new commit. It reads a JSON-encoded Commit value
// from the request body and creates a new Commit entity.
// commitHandler also updates the "tip" Tag for each new commit at tip.
// commitHandler retrieves commit data or records a new commit.
//
// For GET requests it returns a Commit value for the specified
// packagePath and hash.
//
// For POST requests it reads a JSON-encoded Commit value from the request
// body and creates a new Commit entity. It also updates the "tip" Tag for
// each new commit at tip.
//
// This handler is used by a gobuilder process in -commit mode.
func commitHandler(w http.ResponseWriter, r *http.Request) {
func commitHandler(r *http.Request) (interface{}, os.Error) {
c := appengine.NewContext(r)
com := new(Commit)
// TODO(adg): support unauthenticated GET requests to this handler
if r.Method == "GET" {
com.PackagePath = r.FormValue("packagePath")
com.Hash = r.FormValue("hash")
if err := datastore.Get(c, com.Key(c), com); err != nil {
return nil, err
}
return com, nil
}
// POST request
defer r.Body.Close()
if err := json.NewDecoder(r.Body).Decode(com); err != nil {
logErr(w, r, err)
return
return nil, err
}
if err := com.Valid(); err != nil {
logErr(w, r, err)
return
return nil, err
}
tx := func(c appengine.Context) os.Error {
return addCommit(c, com)
}
c := appengine.NewContext(r)
if err := datastore.RunInTransaction(c, tx, nil); err != nil {
logErr(w, r, err)
}
return nil, datastore.RunInTransaction(c, tx, nil)
}
// addCommit adds the Commit entity to the datastore and updates the tip Tag.
@ -266,25 +279,21 @@ func addCommit(c appengine.Context, com *Commit) os.Error {
// request body and updates the Tag entity for the Kind of tag provided.
//
// This handler is used by a gobuilder process in -commit mode.
func tagHandler(w http.ResponseWriter, r *http.Request) {
func tagHandler(r *http.Request) (interface{}, os.Error) {
t := new(Tag)
defer r.Body.Close()
if err := json.NewDecoder(r.Body).Decode(t); err != nil {
logErr(w, r, err)
return
return nil, err
}
if err := t.Valid(); err != nil {
logErr(w, r, err)
return
return nil, err
}
c := appengine.NewContext(r)
if _, err := datastore.Put(c, t.Key(c), t); err != nil {
logErr(w, r, err)
return
}
_, err := datastore.Put(c, t.Key(c), t)
return nil, err
}
// todoHandler returns the string of the hash of the next Commit to be built.
// todoHandler returns the hash of the next Commit to be built.
// It expects a "builder" query parameter.
//
// By default it scans the first 20 Go Commits in Num-descending order and
@ -294,29 +303,28 @@ func tagHandler(w http.ResponseWriter, r *http.Request) {
// and scans the first 20 Commits in Num-descending order for the specified
// packagePath and returns the first that doesn't have a Result for this builder
// and goHash combination.
func todoHandler(w http.ResponseWriter, r *http.Request) {
func todoHandler(r *http.Request) (interface{}, os.Error) {
builder := r.FormValue("builder")
goHash := r.FormValue("goHash")
c := appengine.NewContext(r)
p, err := GetPackage(c, r.FormValue("packagePath"))
if err != nil {
logErr(w, r, err)
return
return nil, err
}
q := datastore.NewQuery("Commit").
t := datastore.NewQuery("Commit").
Ancestor(p.Key(c)).
Limit(commitsPerPage).
Order("-Num")
var nextHash string
for t := q.Run(c); nextHash == ""; {
Order("-Num").
Run(c)
for {
com := new(Commit)
if _, err := t.Next(com); err == datastore.Done {
break
} else if err != nil {
logErr(w, r, err)
return
if _, err := t.Next(com); err != nil {
if err == datastore.Done {
err = nil
}
return nil, err
}
var hasResult bool
if goHash != "" {
@ -325,15 +333,15 @@ func todoHandler(w http.ResponseWriter, r *http.Request) {
hasResult = com.HasResult(builder)
}
if !hasResult {
nextHash = com.Hash
return com.Hash, nil
}
}
fmt.Fprint(w, nextHash)
panic("unreachable")
}
// packagesHandler returns a JSON-encoded list of the non-Go Packages
// monitored by the dashboard.
func packagesHandler(w http.ResponseWriter, r *http.Request) {
// packagesHandler returns a list of the non-Go Packages monitored
// by the dashboard.
func packagesHandler(r *http.Request) (interface{}, os.Error) {
c := appengine.NewContext(r)
var pkgs []*Package
for t := datastore.NewQuery("Package").Run(c); ; {
@ -341,16 +349,13 @@ func packagesHandler(w http.ResponseWriter, r *http.Request) {
if _, err := t.Next(pkg); err == datastore.Done {
break
} else if err != nil {
logErr(w, r, err)
return
return nil, err
}
if pkg.Path != "" {
pkgs = append(pkgs, pkg)
}
}
if err := json.NewEncoder(w).Encode(pkgs); err != nil {
logErr(w, r, err)
}
return pkgs, nil
}
// resultHandler records a build result.
@ -358,24 +363,21 @@ func packagesHandler(w http.ResponseWriter, r *http.Request) {
// creates a new Result entity, and updates the relevant Commit entity.
// If the Log field is not empty, resultHandler creates a new Log entity
// and updates the LogHash field before putting the Commit entity.
func resultHandler(w http.ResponseWriter, r *http.Request) {
func resultHandler(r *http.Request) (interface{}, os.Error) {
c := appengine.NewContext(r)
res := new(Result)
defer r.Body.Close()
if err := json.NewDecoder(r.Body).Decode(res); err != nil {
logErr(w, r, err)
return
return nil, err
}
if err := res.Valid(); err != nil {
logErr(w, r, err)
return
return nil, err
}
c := appengine.NewContext(r)
// store the Log text if supplied
if len(res.Log) > 0 {
hash, err := PutLog(c, res.Log)
if err != nil {
logErr(w, r, err)
return
return nil, err
}
res.LogHash = hash
}
@ -392,9 +394,7 @@ func resultHandler(w http.ResponseWriter, r *http.Request) {
com := &Commit{PackagePath: res.PackagePath, Hash: res.Hash}
return com.AddResult(c, res)
}
if err := datastore.RunInTransaction(c, tx, nil); err != nil {
logErr(w, r, err)
}
return nil, datastore.RunInTransaction(c, tx, nil)
}
func logHandler(w http.ResponseWriter, r *http.Request) {
@ -416,9 +416,16 @@ func logHandler(w http.ResponseWriter, r *http.Request) {
}
}
type dashHandler func(*http.Request) (interface{}, os.Error)
type dashResponse struct {
Response interface{}
Error os.Error
}
// AuthHandler wraps a http.HandlerFunc with a handler that validates the
// supplied key and builder query parameters.
func AuthHandler(h http.HandlerFunc) http.HandlerFunc {
func AuthHandler(h dashHandler) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
// Put the URL Query values into r.Form to avoid parsing the
// request body when calling r.FormValue.
@ -435,7 +442,17 @@ func AuthHandler(h http.HandlerFunc) http.HandlerFunc {
}
}
h(w, r) // Call the original HandlerFunc.
// Call the original HandlerFunc and return the response.
c := appengine.NewContext(r)
resp, err := h(r)
if err != nil {
c.Errorf("%v", err)
}
w.Header().Set("Content-Type", "application/json")
err = json.NewEncoder(w).Encode(dashResponse{resp, err})
if err != nil {
c.Criticalf("%v", err)
}
}
}

41
misc/dashboard/app/build/test.go
View File

@ -16,6 +16,7 @@ import (
"io"
"json"
"os"
"strings"
"url"
)
@ -77,7 +78,7 @@ var testRequests = []struct {
// logs
{"/result", nil, &Result{Builder: "linux-386", Hash: "0003", OK: false, Log: []byte("test")}, nil},
{"/log/a94a8fe5ccb19ba61c4c0873d391e987982fbbd3", nil, nil, "test"},
{"/todo", url.Values{"builder": {"linux-386"}}, nil, ""},
{"/todo", url.Values{"builder": {"linux-386"}}, nil, nil},
// non-Go repos
{"/commit", nil, &Commit{PackagePath: testPkg, Hash: "1001", ParentHash: "1000"}, nil},
@ -89,7 +90,7 @@ var testRequests = []struct {
{"/result", nil, &Result{PackagePath: testPkg, Builder: "linux-386", Hash: "1002", GoHash: "0001", OK: true}, nil},
{"/todo", url.Values{"builder": {"linux-386"}, "packagePath": {testPkg}, "goHash": {"0001"}}, nil, "1001"},
{"/result", nil, &Result{PackagePath: testPkg, Builder: "linux-386", Hash: "1001", GoHash: "0001", OK: true}, nil},
{"/todo", url.Values{"builder": {"linux-386"}, "packagePath": {testPkg}, "goHash": {"0001"}}, nil, ""},
{"/todo", url.Values{"builder": {"linux-386"}, "packagePath": {testPkg}, "goHash": {"0001"}}, nil, nil},
{"/todo", url.Values{"builder": {"linux-386"}, "packagePath": {testPkg}, "goHash": {"0002"}}, nil, "1003"},
}
@ -111,13 +112,11 @@ func testHandler(w http.ResponseWriter, r *http.Request) {
}
}
failed := false
for i, t := range testRequests {
errorf := func(format string, args ...interface{}) {
fmt.Fprintf(w, "%d %s: ", i, t.path)
fmt.Fprintf(w, format, args...)
fmt.Fprintln(w)
failed = true
}
var body io.ReadWriter
if t.req != nil {
@ -133,6 +132,9 @@ func testHandler(w http.ResponseWriter, r *http.Request) {
logErr(w, r, err)
return
}
if t.req != nil {
req.Method = "POST"
}
req.Header = r.Header
rec := httptest.NewRecorder()
http.DefaultServeMux.ServeHTTP(rec, req)
@ -140,17 +142,34 @@ func testHandler(w http.ResponseWriter, r *http.Request) {
errorf(rec.Body.String())
return
}
if e, ok := t.res.(string); ok {
g := rec.Body.String()
if g != e {
errorf("body mismatch: got %q want %q", g, e)
resp := new(dashResponse)
if strings.HasPrefix(t.path, "/log/") {
resp.Response = rec.Body.String()
} else {
err := json.NewDecoder(rec.Body).Decode(resp)
if err != nil {
errorf("decoding response: %v", err)
return
}
}
if e, ok := t.res.(string); ok {
g, ok := resp.Response.(string)
if !ok {
errorf("Response not string: %T", resp.Response)
return
}
if g != e {
errorf("response mismatch: got %q want %q", g, e)
return
}
}
if t.res == nil && resp.Response != nil {
errorf("response mismatch: got %q expected <nil>",
resp.Response)
return
}
}
if !failed {
fmt.Fprint(w, "PASS")
}
fmt.Fprint(w, "PASS")
}
func nukeEntities(c appengine.Context, kinds []string) os.Error {