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https://github.com/go-gitea/gitea
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This PR follows #21535 (and replace #22592) ## Review without space diff https://github.com/go-gitea/gitea/pull/22678/files?diff=split&w=1 ## Purpose of this PR 1. Make git module command completely safe (risky user inputs won't be passed as argument option anymore) 2. Avoid low-level mistakes like https://github.com/go-gitea/gitea/pull/22098#discussion_r1045234918 3. Remove deprecated and dirty `CmdArgCheck` function, hide the `CmdArg` type 4. Simplify code when using git command ## The main idea of this PR * Move the `git.CmdArg` to the `internal` package, then no other package except `git` could use it. Then developers could never do `AddArguments(git.CmdArg(userInput))` any more. * Introduce `git.ToTrustedCmdArgs`, it's for user-provided and already trusted arguments. It's only used in a few cases, for example: use git arguments from config file, help unit test with some arguments. * Introduce `AddOptionValues` and `AddOptionFormat`, they make code more clear and simple: * Before: `AddArguments("-m").AddDynamicArguments(message)` * After: `AddOptionValues("-m", message)` * - * Before: `AddArguments(git.CmdArg(fmt.Sprintf("--author='%s <%s>'", sig.Name, sig.Email)))` * After: `AddOptionFormat("--author='%s <%s>'", sig.Name, sig.Email)` ## FAQ ### Why these changes were not done in #21535 ? #21535 is mainly a search&replace, it did its best to not change too much logic. Making the framework better needs a lot of changes, so this separate PR is needed as the second step. ### The naming of `AddOptionXxx` According to git's manual, the `--xxx` part is called `option`. ### How can it guarantee that `internal.CmdArg` won't be not misused? Go's specification guarantees that. Trying to access other package's internal package causes compilation error. And, `golangci-lint` also denies the git/internal package. Only the `git/command.go` can use it carefully. ### There is still a `ToTrustedCmdArgs`, will it still allow developers to make mistakes and pass untrusted arguments? Generally speaking, no. Because when using `ToTrustedCmdArgs`, the code will be very complex (see the changes for examples). Then developers and reviewers can know that something might be unreasonable. ### Why there was a `CmdArgCheck` and why it's removed? At the moment of #21535, to reduce unnecessary changes, `CmdArgCheck` was introduced as a hacky patch. Now, almost all code could be written as `cmd := NewCommand(); cmd.AddXxx(...)`, then there is no need for `CmdArgCheck` anymore. ### Why many codes for `signArg == ""` is deleted? Because in the old code, `signArg` could never be empty string, it's either `-S[key-id]` or `--no-gpg-sign`. So the `signArg == ""` is just dead code. --------- Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
148 lines
3.8 KiB
Go
148 lines
3.8 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package git
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import (
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"bufio"
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"context"
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"fmt"
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"os"
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"sort"
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"strconv"
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"strings"
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"time"
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"code.gitea.io/gitea/modules/container"
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)
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// CodeActivityStats represents git statistics data
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type CodeActivityStats struct {
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AuthorCount int64
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CommitCount int64
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ChangedFiles int64
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Additions int64
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Deletions int64
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CommitCountInAllBranches int64
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Authors []*CodeActivityAuthor
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}
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// CodeActivityAuthor represents git statistics data for commit authors
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type CodeActivityAuthor struct {
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Name string
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Email string
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Commits int64
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}
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// GetCodeActivityStats returns code statistics for activity page
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func (repo *Repository) GetCodeActivityStats(fromTime time.Time, branch string) (*CodeActivityStats, error) {
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stats := &CodeActivityStats{}
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since := fromTime.Format(time.RFC3339)
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stdout, _, runErr := NewCommand(repo.Ctx, "rev-list", "--count", "--no-merges", "--branches=*", "--date=iso").AddOptionFormat("--since='%s'", since).RunStdString(&RunOpts{Dir: repo.Path})
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if runErr != nil {
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return nil, runErr
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}
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c, err := strconv.ParseInt(strings.TrimSpace(stdout), 10, 64)
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if err != nil {
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return nil, err
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}
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stats.CommitCountInAllBranches = c
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stdoutReader, stdoutWriter, err := os.Pipe()
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if err != nil {
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return nil, err
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}
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defer func() {
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_ = stdoutReader.Close()
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_ = stdoutWriter.Close()
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}()
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gitCmd := NewCommand(repo.Ctx, "log", "--numstat", "--no-merges", "--pretty=format:---%n%h%n%aN%n%aE%n", "--date=iso").AddOptionFormat("--since='%s'", since)
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if len(branch) == 0 {
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gitCmd.AddArguments("--branches=*")
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} else {
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gitCmd.AddArguments("--first-parent").AddDynamicArguments(branch)
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}
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stderr := new(strings.Builder)
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err = gitCmd.Run(&RunOpts{
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Env: []string{},
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Dir: repo.Path,
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Stdout: stdoutWriter,
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Stderr: stderr,
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PipelineFunc: func(ctx context.Context, cancel context.CancelFunc) error {
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_ = stdoutWriter.Close()
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scanner := bufio.NewScanner(stdoutReader)
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scanner.Split(bufio.ScanLines)
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stats.CommitCount = 0
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stats.Additions = 0
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stats.Deletions = 0
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authors := make(map[string]*CodeActivityAuthor)
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files := make(container.Set[string])
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var author string
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p := 0
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for scanner.Scan() {
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l := strings.TrimSpace(scanner.Text())
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if l == "---" {
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p = 1
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} else if p == 0 {
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continue
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} else {
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p++
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}
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if p > 4 && len(l) == 0 {
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continue
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}
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switch p {
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case 1: // Separator
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case 2: // Commit sha-1
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stats.CommitCount++
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case 3: // Author
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author = l
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case 4: // E-mail
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email := strings.ToLower(l)
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if _, ok := authors[email]; !ok {
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authors[email] = &CodeActivityAuthor{Name: author, Email: email, Commits: 0}
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}
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authors[email].Commits++
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default: // Changed file
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if parts := strings.Fields(l); len(parts) >= 3 {
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if parts[0] != "-" {
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if c, err := strconv.ParseInt(strings.TrimSpace(parts[0]), 10, 64); err == nil {
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stats.Additions += c
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}
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}
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if parts[1] != "-" {
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if c, err := strconv.ParseInt(strings.TrimSpace(parts[1]), 10, 64); err == nil {
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stats.Deletions += c
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}
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}
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files.Add(parts[2])
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}
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}
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}
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a := make([]*CodeActivityAuthor, 0, len(authors))
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for _, v := range authors {
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a = append(a, v)
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}
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// Sort authors descending depending on commit count
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sort.Slice(a, func(i, j int) bool {
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return a[i].Commits > a[j].Commits
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})
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stats.AuthorCount = int64(len(authors))
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stats.ChangedFiles = int64(len(files))
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stats.Authors = a
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_ = stdoutReader.Close()
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return nil
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},
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})
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if err != nil {
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return nil, fmt.Errorf("Failed to get GetCodeActivityStats for repository.\nError: %w\nStderr: %s", err, stderr)
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}
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return stats, nil
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}
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