mirror of
https://github.com/go-gitea/gitea
synced 2024-12-15 21:34:07 +01:00
74f0c84fa4
Noteable additions: - `redefines-builtin-id` forbid variable names that shadow go builtins - `empty-lines` remove unnecessary empty lines that `gofumpt` does not remove for some reason - `superfluous-else` eliminate more superfluous `else` branches Rules are also sorted alphabetically and I cleaned up various parts of `.golangci.yml`.
118 lines
3.3 KiB
Go
118 lines
3.3 KiB
Go
// Copyright 2024 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package markup
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import (
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"bufio"
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"context"
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"fmt"
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"html/template"
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"strings"
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"code.gitea.io/gitea/models/perm/access"
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"code.gitea.io/gitea/models/repo"
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"code.gitea.io/gitea/models/unit"
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"code.gitea.io/gitea/modules/charset"
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"code.gitea.io/gitea/modules/gitrepo"
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"code.gitea.io/gitea/modules/indexer/code"
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"code.gitea.io/gitea/modules/markup"
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"code.gitea.io/gitea/modules/setting"
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gitea_context "code.gitea.io/gitea/services/context"
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"code.gitea.io/gitea/services/repository/files"
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)
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func renderRepoFileCodePreview(ctx context.Context, opts markup.RenderCodePreviewOptions) (template.HTML, error) {
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opts.LineStop = max(opts.LineStop, opts.LineStart)
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lineCount := opts.LineStop - opts.LineStart + 1
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if lineCount <= 0 || lineCount > 140 /* GitHub at most show 140 lines */ {
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lineCount = 10
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opts.LineStop = opts.LineStart + lineCount
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}
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dbRepo, err := repo.GetRepositoryByOwnerAndName(ctx, opts.OwnerName, opts.RepoName)
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if err != nil {
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return "", err
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}
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webCtx, ok := ctx.Value(gitea_context.WebContextKey).(*gitea_context.Context)
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if !ok {
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return "", fmt.Errorf("context is not a web context")
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}
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doer := webCtx.Doer
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perms, err := access.GetUserRepoPermission(ctx, dbRepo, doer)
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if err != nil {
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return "", err
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}
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if !perms.CanRead(unit.TypeCode) {
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return "", fmt.Errorf("no permission")
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}
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gitRepo, err := gitrepo.OpenRepository(ctx, dbRepo)
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if err != nil {
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return "", err
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}
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defer gitRepo.Close()
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commit, err := gitRepo.GetCommit(opts.CommitID)
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if err != nil {
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return "", err
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}
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language, _ := files.TryGetContentLanguage(gitRepo, opts.CommitID, opts.FilePath)
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blob, err := commit.GetBlobByPath(opts.FilePath)
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if err != nil {
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return "", err
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}
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if blob.Size() > setting.UI.MaxDisplayFileSize {
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return "", fmt.Errorf("file is too large")
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}
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dataRc, err := blob.DataAsync()
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if err != nil {
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return "", err
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}
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defer dataRc.Close()
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reader := bufio.NewReader(dataRc)
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for i := 1; i < opts.LineStart; i++ {
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if _, err = reader.ReadBytes('\n'); err != nil {
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return "", err
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}
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}
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lineNums := make([]int, 0, lineCount)
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lineCodes := make([]string, 0, lineCount)
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for i := opts.LineStart; i <= opts.LineStop; i++ {
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line, err := reader.ReadString('\n')
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if err != nil && line == "" {
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break
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}
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lineNums = append(lineNums, i)
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lineCodes = append(lineCodes, line)
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}
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realLineStop := max(opts.LineStart, opts.LineStart+len(lineNums)-1)
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highlightLines := code.HighlightSearchResultCode(opts.FilePath, language, lineNums, strings.Join(lineCodes, ""))
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escapeStatus := &charset.EscapeStatus{}
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lineEscapeStatus := make([]*charset.EscapeStatus, len(highlightLines))
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for i, hl := range highlightLines {
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lineEscapeStatus[i], hl.FormattedContent = charset.EscapeControlHTML(hl.FormattedContent, webCtx.Base.Locale, charset.RuneNBSP)
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escapeStatus = escapeStatus.Or(lineEscapeStatus[i])
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}
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return webCtx.RenderToHTML("base/markup_codepreview", map[string]any{
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"FullURL": opts.FullURL,
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"FilePath": opts.FilePath,
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"LineStart": opts.LineStart,
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"LineStop": realLineStop,
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"RepoLink": dbRepo.Link(),
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"CommitID": opts.CommitID,
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"HighlightLines": highlightLines,
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"EscapeStatus": escapeStatus,
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"LineEscapeStatus": lineEscapeStatus,
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})
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}
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