Files
forge/modules/git/attribute/checker.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

99 lines
2.9 KiB
Go

// Copyright 2026 Hanzo AI, Inc. All rights reserved.
// Copyright 2025 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package attribute
import (
"bytes"
"context"
"errors"
"fmt"
"os"
"github.com/hanzoai/git/modules/git"
"github.com/hanzoai/git/modules/git/gitcmd"
)
func checkAttrCommand(gitRepo *git.Repository, treeish string, filenames, attributes []string) (*gitcmd.Command, []string, func(), error) {
cancel := func() {}
envs := []string{"GIT_FLUSH=1"}
cmd := gitcmd.NewCommand("check-attr", "-z")
if len(attributes) == 0 {
cmd.AddArguments("--all")
}
// there is treeish, read from bare repo or temp index created by "read-tree"
if treeish != "" {
if git.DefaultFeatures().SupportCheckAttrOnBare {
cmd.AddArguments("--source")
cmd.AddDynamicArguments(treeish)
} else {
indexFilename, worktree, deleteTemporaryFile, err := gitRepo.ReadTreeToTemporaryIndex(treeish)
if err != nil {
return nil, nil, nil, err
}
cmd.AddArguments("--cached")
envs = append(envs,
"GIT_INDEX_FILE="+indexFilename,
"GIT_WORK_TREE="+worktree,
)
cancel = deleteTemporaryFile
}
} else {
// Read from existing index, in cases where the repo is bare and has an index,
// or the work tree contains unstaged changes that shouldn't affect the attribute check.
// It is caller's responsibility to add changed ".gitattributes" into the index if they want to respect the new changes.
cmd.AddArguments("--cached")
}
cmd.AddDynamicArguments(attributes...)
if len(filenames) > 0 {
cmd.AddDashesAndList(filenames...)
}
return cmd, envs, cancel, nil
}
type CheckAttributeOpts struct {
Filenames []string
Attributes []string
}
// CheckAttributes return the attributes of the given filenames and attributes in the given treeish.
// If treeish is empty, then it will use current working directory, otherwise it will use the provided treeish on the bare repo
func CheckAttributes(ctx context.Context, gitRepo *git.Repository, treeish string, opts CheckAttributeOpts) (map[string]*Attributes, error) {
cmd, envs, cancel, err := checkAttrCommand(gitRepo, treeish, opts.Filenames, opts.Attributes)
if err != nil {
return nil, err
}
defer cancel()
stdout, _, err := cmd.WithEnv(append(os.Environ(), envs...)).
WithDir(gitRepo.Path).
RunStdBytes(ctx)
if err != nil {
return nil, fmt.Errorf("failed to run check-attr: %w", err)
}
fields := bytes.Split(stdout, []byte{'\000'})
if len(fields)%3 != 1 {
return nil, errors.New("wrong number of fields in return from check-attr")
}
attributesMap := make(map[string]*Attributes)
for i := 0; i < (len(fields) / 3); i++ {
filename := string(fields[3*i])
attribute := string(fields[3*i+1])
info := string(fields[3*i+2])
attribute2info, ok := attributesMap[filename]
if !ok {
attribute2info = NewAttributes()
attributesMap[filename] = attribute2info
}
attribute2info.m[attribute] = Attribute(info)
}
return attributesMap, nil
}