Files
forge/modules/gitrepo/compare.go
zeekayandHanzo Dev 9a07b4d089 legal: Hanzo AI, Inc. copyright above the upstream notices
2978 files. The fork is 2026-07-15 (rebrand: gitea.dev -> github.com/hanzoai/git),
so 2026 is the year, and "Copyright 2026 Hanzo AI, Inc." was already the form
used by the handful of files that had ours.

Shape is now:

	// Copyright 2026 Hanzo AI, Inc. All rights reserved.
	// Copyright 2015 The Gogs Authors. All rights reserved.
	// Copyright 2019 The Gitea Authors. All rights reserved.
	// SPDX-License-Identifier: MIT

Ours on top, theirs retained verbatim. Retained because MIT requires it, and
separately because they are true — those authors did write that code.

Not renamed to "The Git Authors": Git is a different project under a different
license, and putting its name here would attribute this code to people who have
nothing to do with it. Adding our line is the fix; overwriting theirs would have
been both a licence violation and a false statement.

gofmt still reports import-order drift in some of these files. It predates this
change (verified against a stash) and is left alone rather than burying a
one-line-per-file legal change under 3000 files of unrelated reordering.

Build clean.

Co-authored-by: Hanzo Dev <[email protected]>
2026-07-27 13:49:52 -07:00

72 lines
2.4 KiB
Go

// Copyright 2026 Hanzo AI, Inc. All rights reserved.
// Copyright 2025 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package gitrepo
import (
"context"
"fmt"
"strconv"
"strings"
"github.com/hanzoai/git/modules/git/gitcmd"
)
// DivergeObject represents commit count diverging commits
type DivergeObject struct {
Ahead int
Behind int
}
// GetDivergingCommits returns the number of commits a targetBranch is ahead or behind a baseBranch
func GetDivergingCommits(ctx context.Context, repo Repository, baseBranch, targetBranch string) (*DivergeObject, error) {
cmd := gitcmd.NewCommand("rev-list", "--count", "--left-right").
AddDynamicArguments(baseBranch + "..." + targetBranch).AddArguments("--")
stdout, _, err1 := RunCmdString(ctx, repo, cmd)
if err1 != nil {
return nil, err1
}
left, right, found := strings.Cut(strings.Trim(stdout, "\n"), "\t")
if !found {
return nil, fmt.Errorf("git rev-list output is missing a tab: %q", stdout)
}
behind, err := strconv.Atoi(left)
if err != nil {
return nil, err
}
ahead, err := strconv.Atoi(right)
if err != nil {
return nil, err
}
return &DivergeObject{Ahead: ahead, Behind: behind}, nil
}
// GetCommitIDsBetweenReverse returns the last commit IDs between two commits in reverse order (from old to new) with limit.
// If the result exceeds the limit, the old commits IDs will be ignored
func GetCommitIDsBetweenReverse(ctx context.Context, repo Repository, startRef, endRef, notRef string, limit int) ([]string, error) {
genCmd := func(reversions ...string) *gitcmd.Command {
cmd := gitcmd.NewCommand("rev-list", "--reverse").
AddArguments("-n").AddDynamicArguments(strconv.Itoa(limit)).
AddDynamicArguments(reversions...)
if notRef != "" { // --not should be kept as the last parameter of git command, otherwise the result will be wrong
cmd.AddOptionValues("--not", notRef)
}
return cmd
}
stdout, _, err := RunCmdString(ctx, repo, genCmd(startRef+".."+endRef))
if gitcmd.IsStderr(err, gitcmd.StderrNoMergeBase) {
// if the start and end are not related (no merge base), just get all commits pushed by "end ref"
// previously it would return the results of git rev-list before last so let's try that...
stdout, _, err = RunCmdString(ctx, repo, genCmd(endRef))
}
if err != nil {
return nil, err
}
commitIDs := strings.Fields(strings.TrimSpace(stdout))
return commitIDs, nil
}