mirror of
https://github.com/go-gitea/gitea
synced 2024-11-13 21:54:24 +00:00
327 lines
8.4 KiB
Go
327 lines
8.4 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package repo
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import (
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"fmt"
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gotemplate "html/template"
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"net/http"
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"net/url"
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"strconv"
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"strings"
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user_model "code.gitea.io/gitea/models/user"
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"code.gitea.io/gitea/modules/charset"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/highlight"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/templates"
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"code.gitea.io/gitea/modules/timeutil"
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"code.gitea.io/gitea/modules/util"
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"code.gitea.io/gitea/services/context"
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files_service "code.gitea.io/gitea/services/repository/files"
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)
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type blameRow struct {
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RowNumber int
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Avatar gotemplate.HTML
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RepoLink string
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PartSha string
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PreviousSha string
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PreviousShaURL string
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IsFirstCommit bool
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CommitURL string
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CommitMessage string
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CommitSince gotemplate.HTML
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Code gotemplate.HTML
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EscapeStatus *charset.EscapeStatus
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}
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// RefBlame render blame page
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func RefBlame(ctx *context.Context) {
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fileName := ctx.Repo.TreePath
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if len(fileName) == 0 {
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ctx.NotFound("Blame FileName", nil)
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return
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}
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branchLink := ctx.Repo.RepoLink + "/src/" + ctx.Repo.BranchNameSubURL()
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treeLink := branchLink
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rawLink := ctx.Repo.RepoLink + "/raw/" + ctx.Repo.BranchNameSubURL()
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if len(ctx.Repo.TreePath) > 0 {
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treeLink += "/" + util.PathEscapeSegments(ctx.Repo.TreePath)
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}
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var treeNames []string
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paths := make([]string, 0, 5)
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if len(ctx.Repo.TreePath) > 0 {
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treeNames = strings.Split(ctx.Repo.TreePath, "/")
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for i := range treeNames {
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paths = append(paths, strings.Join(treeNames[:i+1], "/"))
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}
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ctx.Data["HasParentPath"] = true
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if len(paths)-2 >= 0 {
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ctx.Data["ParentPath"] = "/" + paths[len(paths)-1]
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}
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}
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// Get current entry user currently looking at.
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entry, err := ctx.Repo.Commit.GetTreeEntryByPath(ctx.Repo.TreePath)
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if err != nil {
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HandleGitError(ctx, "Repo.Commit.GetTreeEntryByPath", err)
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return
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}
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blob := entry.Blob()
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ctx.Data["Paths"] = paths
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ctx.Data["TreeLink"] = treeLink
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ctx.Data["TreeNames"] = treeNames
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ctx.Data["BranchLink"] = branchLink
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ctx.Data["RawFileLink"] = rawLink + "/" + util.PathEscapeSegments(ctx.Repo.TreePath)
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ctx.Data["PageIsViewCode"] = true
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ctx.Data["IsBlame"] = true
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fileSize := blob.Size()
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ctx.Data["FileSize"] = fileSize
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ctx.Data["FileName"] = blob.Name()
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if fileSize >= setting.UI.MaxDisplayFileSize {
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ctx.Data["IsFileTooLarge"] = true
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ctx.HTML(http.StatusOK, tplRepoHome)
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return
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}
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ctx.Data["NumLines"], err = blob.GetBlobLineCount()
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ctx.Data["NumLinesSet"] = true
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if err != nil {
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ctx.NotFound("GetBlobLineCount", err)
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return
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}
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bypassBlameIgnore, _ := strconv.ParseBool(ctx.FormString("bypass-blame-ignore"))
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result, err := performBlame(ctx, ctx.Repo.Repository.RepoPath(), ctx.Repo.Commit, fileName, bypassBlameIgnore)
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if err != nil {
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ctx.NotFound("CreateBlameReader", err)
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return
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}
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ctx.Data["UsesIgnoreRevs"] = result.UsesIgnoreRevs
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ctx.Data["FaultyIgnoreRevsFile"] = result.FaultyIgnoreRevsFile
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// Get Topics of this repo
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renderRepoTopics(ctx)
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if ctx.Written() {
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return
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}
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commitNames := processBlameParts(ctx, result.Parts)
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if ctx.Written() {
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return
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}
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renderBlame(ctx, result.Parts, commitNames)
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ctx.HTML(http.StatusOK, tplRepoHome)
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}
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type blameResult struct {
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Parts []*git.BlamePart
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UsesIgnoreRevs bool
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FaultyIgnoreRevsFile bool
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}
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func performBlame(ctx *context.Context, repoPath string, commit *git.Commit, file string, bypassBlameIgnore bool) (*blameResult, error) {
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objectFormat := ctx.Repo.GetObjectFormat()
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blameReader, err := git.CreateBlameReader(ctx, objectFormat, repoPath, commit, file, bypassBlameIgnore)
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if err != nil {
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return nil, err
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}
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r := &blameResult{}
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if err := fillBlameResult(blameReader, r); err != nil {
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_ = blameReader.Close()
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return nil, err
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}
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err = blameReader.Close()
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if err != nil {
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if len(r.Parts) == 0 && r.UsesIgnoreRevs {
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// try again without ignored revs
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blameReader, err = git.CreateBlameReader(ctx, objectFormat, repoPath, commit, file, true)
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if err != nil {
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return nil, err
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}
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r := &blameResult{
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FaultyIgnoreRevsFile: true,
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}
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if err := fillBlameResult(blameReader, r); err != nil {
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_ = blameReader.Close()
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return nil, err
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}
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return r, blameReader.Close()
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}
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return nil, err
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}
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return r, nil
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}
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func fillBlameResult(br *git.BlameReader, r *blameResult) error {
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r.UsesIgnoreRevs = br.UsesIgnoreRevs()
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previousHelper := make(map[string]*git.BlamePart)
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r.Parts = make([]*git.BlamePart, 0, 5)
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for {
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blamePart, err := br.NextPart()
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if err != nil {
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return fmt.Errorf("BlameReader.NextPart failed: %w", err)
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}
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if blamePart == nil {
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break
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}
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if prev, ok := previousHelper[blamePart.Sha]; ok {
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if blamePart.PreviousSha == "" {
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blamePart.PreviousSha = prev.PreviousSha
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blamePart.PreviousPath = prev.PreviousPath
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}
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} else {
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previousHelper[blamePart.Sha] = blamePart
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}
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r.Parts = append(r.Parts, blamePart)
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}
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return nil
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}
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func processBlameParts(ctx *context.Context, blameParts []*git.BlamePart) map[string]*user_model.UserCommit {
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// store commit data by SHA to look up avatar info etc
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commitNames := make(map[string]*user_model.UserCommit)
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// and as blameParts can reference the same commits multiple
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// times, we cache the lookup work locally
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commits := make([]*git.Commit, 0, len(blameParts))
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commitCache := map[string]*git.Commit{}
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commitCache[ctx.Repo.Commit.ID.String()] = ctx.Repo.Commit
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for _, part := range blameParts {
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sha := part.Sha
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if _, ok := commitNames[sha]; ok {
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continue
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}
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// find the blamePart commit, to look up parent & email address for avatars
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commit, ok := commitCache[sha]
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var err error
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if !ok {
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commit, err = ctx.Repo.GitRepo.GetCommit(sha)
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if err != nil {
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if git.IsErrNotExist(err) {
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ctx.NotFound("Repo.GitRepo.GetCommit", err)
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} else {
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ctx.ServerError("Repo.GitRepo.GetCommit", err)
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}
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return nil
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}
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commitCache[sha] = commit
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}
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commits = append(commits, commit)
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}
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// populate commit email addresses to later look up avatars.
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for _, c := range user_model.ValidateCommitsWithEmails(ctx, commits) {
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commitNames[c.ID.String()] = c
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}
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return commitNames
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}
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func renderBlame(ctx *context.Context, blameParts []*git.BlamePart, commitNames map[string]*user_model.UserCommit) {
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repoLink := ctx.Repo.RepoLink
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language, err := files_service.TryGetContentLanguage(ctx.Repo.GitRepo, ctx.Repo.CommitID, ctx.Repo.TreePath)
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if err != nil {
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log.Error("Unable to get file language for %-v:%s. Error: %v", ctx.Repo.Repository, ctx.Repo.TreePath, err)
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}
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lines := make([]string, 0)
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rows := make([]*blameRow, 0)
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escapeStatus := &charset.EscapeStatus{}
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var lexerName string
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avatarUtils := templates.NewAvatarUtils(ctx)
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i := 0
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commitCnt := 0
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for _, part := range blameParts {
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for index, line := range part.Lines {
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i++
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lines = append(lines, line)
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br := &blameRow{
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RowNumber: i,
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}
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commit := commitNames[part.Sha]
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if index == 0 {
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// Count commit number
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commitCnt++
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// User avatar image
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commitSince := timeutil.TimeSinceUnix(timeutil.TimeStamp(commit.Author.When.Unix()), ctx.Locale)
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var avatar string
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if commit.User != nil {
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avatar = string(avatarUtils.Avatar(commit.User, 18))
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} else {
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avatar = string(avatarUtils.AvatarByEmail(commit.Author.Email, commit.Author.Name, 18, "tw-mr-2"))
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}
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br.Avatar = gotemplate.HTML(avatar)
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br.RepoLink = repoLink
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br.PartSha = part.Sha
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br.PreviousSha = part.PreviousSha
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br.PreviousShaURL = fmt.Sprintf("%s/blame/commit/%s/%s", repoLink, url.PathEscape(part.PreviousSha), util.PathEscapeSegments(part.PreviousPath))
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br.CommitURL = fmt.Sprintf("%s/commit/%s", repoLink, url.PathEscape(part.Sha))
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br.CommitMessage = commit.CommitMessage
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br.CommitSince = commitSince
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}
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if i != len(lines)-1 {
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line += "\n"
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}
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fileName := fmt.Sprintf("%v", ctx.Data["FileName"])
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line, lexerNameForLine := highlight.Code(fileName, language, line)
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// set lexer name to the first detected lexer. this is certainly suboptimal and
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// we should instead highlight the whole file at once
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if lexerName == "" {
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lexerName = lexerNameForLine
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}
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br.EscapeStatus, br.Code = charset.EscapeControlHTML(line, ctx.Locale)
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rows = append(rows, br)
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escapeStatus = escapeStatus.Or(br.EscapeStatus)
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}
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}
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ctx.Data["EscapeStatus"] = escapeStatus
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ctx.Data["BlameRows"] = rows
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ctx.Data["CommitCnt"] = commitCnt
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ctx.Data["LexerName"] = lexerName
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}
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