mirror of
https://github.com/go-gitea/gitea.git
synced 2026-07-21 22:05:17 +02:00
9dc04289aa
before: gitrepo vs git packages after: git package fully handle all git operations by the way, use `WithRepo(repo)` instead of `WithDir(repo.Path)` to hide path details. benefits: 1. remove all unnecessary wrappers, developers no need to struggle with "which package should be used" 2. simplify code, RepositoryFacade can (will) be used everywhere, all "path" details are (will be) hidden
72 lines
2.4 KiB
Go
72 lines
2.4 KiB
Go
// Copyright 2025 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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"context"
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"fmt"
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"io"
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"regexp"
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"strconv"
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"gitea.dev/modules/git/gitcmd"
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)
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// GetDiffShortStatByCmdArgs counts number of changed files, number of additions and deletions
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// TODO: it can be merged with another "GetDiffShortStat" in the future
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func GetDiffShortStatByCmdArgs(ctx context.Context, repo RepositoryFacade, trustedArgs gitcmd.TrustedCmdArgs, dynamicArgs ...string) (numFiles, totalAdditions, totalDeletions int, err error) {
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// Now if we call:
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// $ git diff --shortstat 1ebb35b98889ff77299f24d82da426b434b0cca0...788b8b1440462d477f45b0088875
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// we get:
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// " 9902 files changed, 2034198 insertions(+), 298800 deletions(-)\n"
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cmd := gitcmd.NewCommand("diff", "--shortstat").AddArguments(trustedArgs...).AddDynamicArguments(dynamicArgs...)
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stdout, _, err := cmd.WithRepo(repo).RunStdString(ctx)
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if err != nil {
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return 0, 0, 0, err
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}
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return parseDiffStat(stdout)
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}
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var shortStatFormat = regexp.MustCompile(
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`\s*(\d+) files? changed(?:, (\d+) insertions?\(\+\))?(?:, (\d+) deletions?\(-\))?`)
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func parseDiffStat(stdout string) (numFiles, totalAdditions, totalDeletions int, err error) {
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if len(stdout) == 0 || stdout == "\n" {
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return 0, 0, 0, nil
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}
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groups := shortStatFormat.FindStringSubmatch(stdout)
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if len(groups) != 4 {
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return 0, 0, 0, fmt.Errorf("unable to parse shortstat: %s groups: %s", stdout, groups)
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}
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numFiles, err = strconv.Atoi(groups[1])
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if err != nil {
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return 0, 0, 0, fmt.Errorf("unable to parse shortstat: %s. Error parsing NumFiles %w", stdout, err)
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}
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if len(groups[2]) != 0 {
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totalAdditions, err = strconv.Atoi(groups[2])
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if err != nil {
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return 0, 0, 0, fmt.Errorf("unable to parse shortstat: %s. Error parsing NumAdditions %w", stdout, err)
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}
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}
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if len(groups[3]) != 0 {
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totalDeletions, err = strconv.Atoi(groups[3])
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if err != nil {
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return 0, 0, 0, fmt.Errorf("unable to parse shortstat: %s. Error parsing NumDeletions %w", stdout, err)
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}
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}
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return numFiles, totalAdditions, totalDeletions, err
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}
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// GetReverseRawDiff dumps the reverse diff results of repository in given commit ID to io.Writer.
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func GetReverseRawDiff(ctx context.Context, repo RepositoryFacade, commitID string, writer io.Writer) error {
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return gitcmd.NewCommand("show", "--pretty=format:revert %H%n", "-R").
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AddDynamicArguments(commitID).
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WithStdoutCopy(writer).
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WithRepo(repo).RunWithStderr(ctx)
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}
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