undo CL 5699082 / 6223c9fe432b

We decided not to record installs, for now at least.

??? original CL description
misc/dashboard: record install counts for external packages

R=golang-dev, bradfitz
CC=golang-dev
http://codereview.appspot.com/5699082
???

R=golang-dev, dsymonds
CC=golang-dev
http://codereview.appspot.com/5790044

4 files changed, 2 insertions, 259 deletions

diff --git a/misc/dashboard/app/app.yaml b/misc/dashboard/app/app.yaml
index 47b7d822a..6e19db09c 100644
--- a/misc/dashboard/app/app.yaml
+++ b/misc/dashboard/app/app.yaml
@@ -13,8 +13,8 @@ handlers:
   static_dir: static
 - url: /log/.+
   script: _go_app
-- url: /(|commit|install|packages|result|tag|todo)
+- url: /(|commit|packages|result|tag|todo)
   script: _go_app
-- url: /(init|buildtest|key|_ah/queue/go/delay|install/cron)
+- url: /(init|buildtest|key|_ah/queue/go/delay)
   script: _go_app
   login: admin
diff --git a/misc/dashboard/app/build/build.go b/misc/dashboard/app/build/build.go
index a7b08321b..c49fa8bb2 100644
--- a/misc/dashboard/app/build/build.go
+++ b/misc/dashboard/app/build/build.go
@@ -12,7 +12,6 @@ import (
 	"fmt"
 	"io"
 	"io/ioutil"
-	"strconv"
 	"strings"
 	"time"
 
@@ -28,10 +27,6 @@ type Package struct {
 	Name    string
 	Path    string // (empty for the main Go tree)
 	NextNum int    // Num of the next head Commit
-
-	Installs         int      // All-time total install count
-	InstallsByDay    []string `datastore:",noindex"` // "yyyy-mm-dd,n"
-	InstallsThisWeek int      // Rolling weekly count
 }
 
 func (p *Package) String() string {
@@ -46,53 +41,6 @@ func (p *Package) Key(c appengine.Context) *datastore.Key {
 	return datastore.NewKey(c, "Package", key, 0, nil)
 }
 
-const day = time.Hour * 24
-
-// IncrementInstalls increments the total install count and today's install count.
-// Daily install counts for dates older than 30 days are discarded.
-func (p *Package) IncrementInstalls() {
-	c := p.dayCounts()
-	s := []string{}
-	now := time.Now()
-	for i := 0; i < 30; i++ {
-		d := now.Add(-day * time.Duration(i)).Format("2006-01-02")
-		n := c[d]
-		if i == 0 {
-			n++ // increment today's count
-		}
-		if n > 0 { // no need to store zeroes in the datastore
-			s = append(s, fmt.Sprintf("%s,%d", d, n))
-		}
-	}
-	p.InstallsByDay = s
-	p.Installs++
-	p.UpdateInstallsThisWeek()
-}
-
-// UpdateInstallsThisWeek updates the package's InstallsThisWeek field using data
-// from the InstallsByDay list.
-func (p *Package) UpdateInstallsThisWeek() {
-	c := p.dayCounts()
-	n := 0
-	now := time.Now()
-	for i := 0; i < 7; i++ {
-		d := now.Add(-day * time.Duration(i)).Format("2006-01-02")
-		n += c[d]
-	}
-	p.InstallsThisWeek = n
-}
-
-// dayCounts explodes InstallsByDay into a map of dates to install counts.
-func (p *Package) dayCounts() map[string]int {
-	c := make(map[string]int)
-	for _, d := range p.InstallsByDay {
-		p := strings.SplitN(d, ",", 2)
-		n, _ := strconv.Atoi(p[1])
-		c[p[0]] = n
-	}
-	return c
-}
-
 // LastCommit returns the most recent Commit for this Package.
 func (p *Package) LastCommit(c appengine.Context) (*Commit, error) {
 	var commits []*Commit
diff --git a/misc/dashboard/app/build/pkg.go b/misc/dashboard/app/build/pkg.go
deleted file mode 100644
index 076fafe4f..000000000
--- a/misc/dashboard/app/build/pkg.go
+++ /dev/null
@@ -1,201 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package build
-
-import (
-	"net/http"
-	"regexp"
-	"strings"
-
-	"appengine"
-	"appengine/datastore"
-	"appengine/delay"
-	"appengine/urlfetch"
-)
-
-func init() {
-	http.HandleFunc("/install", installHandler)
-	http.HandleFunc("/install/cron", installCronHandler)
-}
-
-// installHandler serves requests from the go tool to increment the install
-// count for a given package.
-func installHandler(w http.ResponseWriter, r *http.Request) {
-	installLater.Call(appengine.NewContext(r), r.FormValue("packagePath"))
-}
-
-// installCronHandler starts a task to update the weekly install counts for
-// every external package.
-func installCronHandler(w http.ResponseWriter, r *http.Request) {
-	c := appengine.NewContext(r)
-	q := datastore.NewQuery("Package").Filter("Kind=", "external").KeysOnly()
-	for t := q.Run(c); ; {
-		key, err := t.Next(nil)
-		if err == datastore.Done {
-			break
-		} else if err != nil {
-			c.Errorf("%v", err)
-			return
-		}
-		updateWeeklyLater.Call(c, key)
-	}
-}
-
-var (
-	installLater      = delay.Func("install", install)
-	updateWeeklyLater = delay.Func("updateWeekly", updateWeekly)
-)
-
-// install validates the provided package path, increments its install count,
-// and creates the Package record if it doesn't exist.
-func install(c appengine.Context, path string) {
-	if !validPath(c, path) {
-		return
-	}
-	tx := func(c appengine.Context) error {
-		p := &Package{Path: path, Kind: "external"}
-		err := datastore.Get(c, p.Key(c), p)
-		if err != nil && err != datastore.ErrNoSuchEntity {
-			return err
-		}
-		p.IncrementInstalls()
-		_, err = datastore.Put(c, p.Key(c), p)
-		return err
-	}
-	if err := datastore.RunInTransaction(c, tx, nil); err != nil {
-		c.Errorf("install(%q): %v", path, err)
-	}
-}
-
-// updateWeekly updates the weekly count for the specified Package.
-func updateWeekly(c appengine.Context, key *datastore.Key) {
-	tx := func(c appengine.Context) error {
-		p := new(Package)
-		if err := datastore.Get(c, key, p); err != nil {
-			return err
-		}
-		p.UpdateInstallsThisWeek()
-		_, err := datastore.Put(c, key, p)
-		return err
-	}
-	if err := datastore.RunInTransaction(c, tx, nil); err != nil {
-		c.Errorf("updateWeekly: %v", err)
-	}
-}
-
-// validPath validates the specified import path by matching it against the
-// vcsPath regexen and validating its existence by making an HTTP GET request
-// to the remote repository.
-func validPath(c appengine.Context, path string) bool {
-	for _, p := range vcsPaths {
-		if !strings.HasPrefix(path, p.prefix) {
-			continue
-		}
-		m := p.regexp.FindStringSubmatch(path)
-		if m == nil {
-			continue
-		}
-		if p.check == nil {
-			// no check function, so just say OK
-			return true
-		}
-		match := make(map[string]string)
-		for i, name := range p.regexp.SubexpNames() {
-			if name != "" {
-				match[name] = m[i]
-			}
-		}
-		return p.check(c, match)
-	}
-	c.Debugf("validPath(%q): matching vcsPath not found", path)
-	return false
-}
-
-// A vcsPath describes how to convert an import path into a version control
-// system and repository name.
-//
-// This is a cut down and modified version of the data structure from
-// $GOROOT/src/cmd/go/vcs.go.
-type vcsPath struct {
-	prefix string // prefix this description applies to
-	re     string // pattern for import path
-
-	// check should perform an HTTP request to validate the import path
-	check func(c appengine.Context, match map[string]string) bool
-
-	regexp *regexp.Regexp // cached compiled form of re
-}
-
-// vcsPaths lists the known vcs paths.
-//
-// This is a cut down version of the data from $GOROOT/src/cmd/go/vcs.go.
-var vcsPaths = []*vcsPath{
-	// Google Code - new syntax
-	{
-		prefix: "code.google.com/",
-		re:     `^(?P<root>code\.google\.com/p/(?P<project>[a-z0-9\-]+)(\.(?P<subrepo>[a-z0-9\-]+))?)(/[A-Za-z0-9_.\-]+)*$`,
-		check:  googleCodeVCS,
-	},
-
-	// Github
-	{
-		prefix: "github.com/",
-		re:     `^(?P<root>github\.com/[A-Za-z0-9_.\-]+/[A-Za-z0-9_.\-]+)(/[A-Za-z0-9_.\-]+)*$`,
-		check:  checkRoot,
-	},
-
-	// Bitbucket
-	{
-		prefix: "bitbucket.org/",
-		re:     `^(?P<root>bitbucket\.org/(?P<bitname>[A-Za-z0-9_.\-]+/[A-Za-z0-9_.\-]+))(/[A-Za-z0-9_.\-]+)*$`,
-		check:  checkRoot,
-	},
-
-	// Launchpad
-	{
-		prefix: "launchpad.net/",
-		re:     `^(?P<root>launchpad\.net/((?P<project>[A-Za-z0-9_.\-]+)(?P<series>/[A-Za-z0-9_.\-]+)?|~[A-Za-z0-9_.\-]+/(\+junk|[A-Za-z0-9_.\-]+)/[A-Za-z0-9_.\-]+))(/[A-Za-z0-9_.\-]+)*$`,
-		// TODO(adg): write check function for Launchpad
-	},
-}
-
-func init() {
-	// Compile the regular expressions.
-	for i := range vcsPaths {
-		vcsPaths[i].regexp = regexp.MustCompile(vcsPaths[i].re)
-	}
-}
-
-// googleCodeVCS performs an HTTP GET to verify that a Google Code project
-// (and, optionally, a sub-repository) exists.
-func googleCodeVCS(c appengine.Context, match map[string]string) bool {
-	u := "https://code.google.com/p/" + match["project"]
-	if match["subrepo"] != "" {
-		u += "/source/checkout?repo=" + match["subrepo"]
-	}
-	return checkURL(c, u)
-}
-
-// checkRoot performs an HTTP GET to verify that a specific repository root
-// exists (for github and bitbucket both).
-func checkRoot(c appengine.Context, match map[string]string) bool {
-	return checkURL(c, "https://"+match["root"])
-}
-
-// checkURL performs an HTTP GET to the specified URL and returns whether the
-// remote server returned a 2xx response.
-func checkURL(c appengine.Context, u string) bool {
-	client := urlfetch.Client(c)
-	resp, err := client.Get(u)
-	if err != nil {
-		c.Errorf("checkURL(%q): %v", u, err)
-		return false
-	}
-	if resp.StatusCode/100 != 2 {
-		c.Debugf("checkURL(%q): HTTP status: %s", u, resp.Status)
-		return false
-	}
-	return true
-}
diff --git a/misc/dashboard/app/cron.yaml b/misc/dashboard/app/cron.yaml
deleted file mode 100644
index b54c24cef..000000000
--- a/misc/dashboard/app/cron.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
-cron:
-- description: update rolling package install counts
-  url: /install/cron
-  schedule: every 24 hours