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- // Copyright 2019 The Gitea Authors. All rights reserved.
- // Use of this source code is governed by a MIT-style
- // license that can be found in the LICENSE file.
-
- package git
-
- import (
- "bytes"
- "fmt"
-
- "github.com/mcuadros/go-version"
- )
-
- // CheckAttributeOpts represents the possible options to CheckAttribute
- type CheckAttributeOpts struct {
- CachedOnly bool
- AllAttributes bool
- Attributes []string
- Filenames []string
- }
-
- // CheckAttribute return the Blame object of file
- func (repo *Repository) CheckAttribute(opts CheckAttributeOpts) (map[string]map[string]string, error) {
- binVersion, err := BinVersion()
- if err != nil {
- return nil, fmt.Errorf("Git version missing: %v", err)
- }
-
- stdOut := new(bytes.Buffer)
- stdErr := new(bytes.Buffer)
-
- cmdArgs := []string{"check-attr", "-z"}
-
- if opts.AllAttributes {
- cmdArgs = append(cmdArgs, "-a")
- } else {
- for _, attribute := range opts.Attributes {
- if attribute != "" {
- cmdArgs = append(cmdArgs, attribute)
- }
- }
- }
-
- // git check-attr --cached first appears in git 1.7.8
- if opts.CachedOnly && version.Compare(binVersion, "1.7.8", ">=") {
- cmdArgs = append(cmdArgs, "--cached")
- }
-
- cmdArgs = append(cmdArgs, "--")
-
- for _, arg := range opts.Filenames {
- if arg != "" {
- cmdArgs = append(cmdArgs, arg)
- }
- }
-
- cmd := NewCommand(cmdArgs...)
-
- if err := cmd.RunInDirPipeline(repo.Path, stdOut, stdErr); err != nil {
- return nil, fmt.Errorf("Failed to run check-attr: %v\n%s\n%s", err, stdOut.String(), stdErr.String())
- }
-
- fields := bytes.Split(stdOut.Bytes(), []byte{'\000'})
-
- if len(fields)%3 != 1 {
- return nil, fmt.Errorf("Wrong number of fields in return from check-attr")
- }
-
- var name2attribute2info = make(map[string]map[string]string)
-
- 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 := name2attribute2info[filename]
- if attribute2info == nil {
- attribute2info = make(map[string]string)
- }
- attribute2info[attribute] = info
- name2attribute2info[filename] = attribute2info
- }
-
- return name2attribute2info, nil
- }
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