[milo] Refactor all html knowledge out of backends.

milo/frontend/console/console.go

-// Copyright 2016 The LUCI Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package console
-
-import (
-        "fmt"
-        "net/http"
-        "strings"
-
-        "golang.org/x/net/context"
-
-        "github.com/luci/luci-go/common/api/gitiles"
-        "github.com/luci/luci-go/common/clock"
-        "github.com/luci/luci-go/common/logging"
-        "github.com/luci/luci-go/milo/api/config"
-        "github.com/luci/luci-go/milo/api/resp"
-        "github.com/luci/luci-go/milo/common"
-        "github.com/luci/luci-go/milo/common/model"
-        "github.com/luci/luci-go/server/router"
-)
-
-// Returns results of build[commit_index][builder_index]
-func GetConsoleBuilds(
-        c context.Context, builders []resp.BuilderRef, commits []string) (
-        [][]*model.BuildSummary, error) {
-
-        panic("Nothing to see here, check back later.")
-}
-
-// getConsoleDef finds the console definition as defined by any project.
-// If the user is not a reader of the project, this will return a 404.
-// TODO(hinoka): If the user is not a reader of any of of the builders returned,
-// that builder will be removed from list of results.
-func getConsoleDef(c context.Context, project, name string) (*config.Console, error) {
-        cs, err := common.GetConsole(c, project, name)
-        if err != nil {
-                return nil, err
-        }
-        // TODO(hinoka): Remove builders that the user does not have access to.
-        return cs, nil
-}
-
-// Main is a redirect handler that redirects the user to the main console for a
-// particular project.
-func Main(ctx *router.Context) {
-        w, r, p := ctx.Writer, ctx.Request, ctx.Params
-        proj := p.ByName("project")
-        http.Redirect(w, r, fmt.Sprintf("/console/%s/main", proj), http.StatusMovedPermanently)
-        return
-}
-
-func summaryToConsole(bs []*model.BuildSummary) []*resp.ConsoleBuild {
-        cb := make([]*resp.ConsoleBuild, 0, len(bs))
-        for _, b := range bs {
-                cb = append(cb, &resp.ConsoleBuild{
-                        // TODO(hinoka): This should link to the actual build.
-                        Link:   resp.NewLink(b.BuildKey.String(), "#"),
-                        Status: b.Summary.Status,
-                })
-        }
-        return cb
-}
-
-func console(c context.Context, project, name string) (*resp.Console, error) {
-        tStart := clock.Now(c)
-        def, err := getConsoleDef(c, project, name)
-        if err != nil {
-                return nil, err
-        }
-        commits, err := getCommits(c, def.RepoURL, def.Branch, 25)
-        if err != nil {
-                return nil, err
-        }
-        tGitiles := clock.Now(c)
-        logging.Debugf(c, "Loading commits took %s.", tGitiles.Sub(tStart))
-        commitNames := make([]string, len(commits))
-        commitLinks := make([]*resp.Link, len(commits))
-        for i, commit := range commits {
-                commitNames[i] = commit.Revision.Label
-                commitLinks[i] = commit.Revision
-        }
-
-        // HACK(hinoka): This only supports buildbot....
-        builders := make([]resp.BuilderRef, len(def.Builders))
-        for i, b := range def.Builders {
-                builders[i] = resp.BuilderRef{
-                        b.Name, strings.Split(b.Category, "|"), b.ShortName,
-                }
-        }
-        cb, err := GetConsoleBuilds(c, builders, commitNames)
-        tConsole := clock.Now(c)
-        logging.Debugf(c, "Loading the console took a total of %s.", tConsole.Sub(tGitiles))
-        if err != nil {
-                return nil, err
-        }
-        ccb := make([]resp.CommitBuild, len(commits))
-        for i, commit := range commitLinks {
-                // TODO(hinoka): Not like this
-                ccb[i].Commit = resp.Commit{Revision: commit}
-                ccb[i].Build = summaryToConsole(cb[i])
-        }
-
-        cs := &resp.Console{
-                Name:       def.Name,
-                Commit:     ccb,
-                BuilderRef: builders,
-        }
-
-        return cs, nil
-}
-
-func getCommits(c context.Context, repoURL, treeish string, limit int) ([]resp.Commit, error) {
-        commits, err := gitiles.Log(c, repoURL, treeish, limit)
-        if err != nil {
-                return nil, err
-        }
-        result := make([]resp.Commit, len(commits))
-        for i, log := range commits {
-                result[i] = resp.Commit{
-                        AuthorName:  log.Author.Name,
-                        AuthorEmail: log.Author.Email,
-                        Repo:        repoURL,
-                        Revision:    resp.NewLink(log.Commit, repoURL+"/+/"+log.Commit),
-                        Description: log.Message,
-                        Title:       strings.SplitN(log.Message, "\n", 2)[0],
-                        // TODO(hinoka): Fill in the rest of resp.Commit and add those details
-                        // in the html.
-                }
-        }
-        return result, nil
-}