mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-11-23 08:47:42 -05:00
298 lines
8.1 KiB
Go
298 lines
8.1 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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"strings"
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repo_model "code.gitea.io/gitea/models/repo"
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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/context"
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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/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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)
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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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userName := ctx.Repo.Owner.Name
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repoName := ctx.Repo.Repository.Name
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commitID := ctx.Repo.CommitID
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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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ctx.NotFoundOrServerError("Repo.Commit.GetTreeEntryByPath", git.IsErrNotExist, 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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ctx.Data["FileSize"] = blob.Size()
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ctx.Data["FileName"] = blob.Name()
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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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blameReader, err := git.CreateBlameReader(ctx, repo_model.RepoPath(userName, repoName), commitID, fileName)
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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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defer blameReader.Close()
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blameParts := make([]git.BlamePart, 0)
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for {
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blamePart, err := blameReader.NextPart()
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if err != nil {
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ctx.NotFound("NextPart", err)
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return
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}
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if blamePart == nil {
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break
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}
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blameParts = append(blameParts, *blamePart)
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}
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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, previousCommits := processBlameParts(ctx, blameParts)
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if ctx.Written() {
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return
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}
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renderBlame(ctx, blameParts, commitNames, previousCommits)
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ctx.HTML(http.StatusOK, tplRepoHome)
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}
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func processBlameParts(ctx *context.Context, blameParts []git.BlamePart) (map[string]*user_model.UserCommit, map[string]string) {
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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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// previousCommits contains links from SHA to parent SHA,
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// if parent also contains the current TreePath.
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previousCommits := make(map[string]string)
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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, nil
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}
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commitCache[sha] = commit
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}
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// find parent commit
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if commit.ParentCount() > 0 {
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psha := commit.Parents[0]
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previousCommit, ok := commitCache[psha.String()]
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if !ok {
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previousCommit, _ = commit.Parent(0)
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if previousCommit != nil {
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commitCache[psha.String()] = previousCommit
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}
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}
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// only store parent commit ONCE, if it has the file
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if previousCommit != nil {
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if haz1, _ := previousCommit.HasFile(ctx.Repo.TreePath); haz1 {
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previousCommits[commit.ID.String()] = previousCommit.ID.String()
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}
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}
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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, previousCommits
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}
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func renderBlame(ctx *context.Context, blameParts []git.BlamePart, commitNames map[string]*user_model.UserCommit, previousCommits map[string]string) {
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repoLink := ctx.Repo.RepoLink
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language := ""
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indexFilename, worktree, deleteTemporaryFile, err := ctx.Repo.GitRepo.ReadTreeToTemporaryIndex(ctx.Repo.CommitID)
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if err == nil {
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defer deleteTemporaryFile()
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filename2attribute2info, err := ctx.Repo.GitRepo.CheckAttribute(git.CheckAttributeOpts{
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CachedOnly: true,
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Attributes: []string{"linguist-language", "gitlab-language"},
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Filenames: []string{ctx.Repo.TreePath},
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IndexFile: indexFilename,
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WorkTree: worktree,
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})
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if err != nil {
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log.Error("Unable to load attributes for %-v:%s. Error: %v", ctx.Repo.Repository, ctx.Repo.TreePath, err)
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}
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language = filename2attribute2info[ctx.Repo.TreePath]["linguist-language"]
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if language == "" || language == "unspecified" {
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language = filename2attribute2info[ctx.Repo.TreePath]["gitlab-language"]
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}
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if language == "unspecified" {
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language = ""
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}
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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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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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previousSha := previousCommits[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(templates.Avatar(ctx, commit.User, 18, "gt-mr-3"))
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} else {
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avatar = string(templates.AvatarByEmail(ctx, commit.Author.Email, commit.Author.Name, 18, "gt-mr-3"))
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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 = previousSha
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br.PreviousShaURL = fmt.Sprintf("%s/blame/commit/%s/%s", repoLink, url.PathEscape(previousSha), util.PathEscapeSegments(ctx.Repo.TreePath))
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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, line = charset.EscapeControlHTML(line, ctx.Locale)
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br.Code = gotemplate.HTML(line)
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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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