mirror of
https://github.com/go-gitea/gitea.git
synced 2026-07-22 17:02:41 +00:00
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
98 lines
2.9 KiB
Go
98 lines
2.9 KiB
Go
// Copyright 2025 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package attribute
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import (
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"bytes"
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"context"
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"errors"
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"fmt"
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"os"
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"gitea.dev/modules/git"
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"gitea.dev/modules/git/gitcmd"
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)
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func checkAttrCommand(ctx context.Context, gitRepo *git.Repository, treeish string, filenames, attributes []string) (*gitcmd.Command, []string, func(), error) {
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cancel := func() {}
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envs := []string{"GIT_FLUSH=1"}
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cmd := gitcmd.NewCommand("check-attr", "-z")
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if len(attributes) == 0 {
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cmd.AddArguments("--all")
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}
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// there is treeish, read from bare repo or temp index created by "read-tree"
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if treeish != "" {
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if git.DefaultFeatures().SupportCheckAttrOnBare {
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cmd.AddArguments("--source")
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cmd.AddDynamicArguments(treeish)
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} else {
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indexFilename, worktree, deleteTemporaryFile, err := gitRepo.ReadTreeToTemporaryIndex(ctx, treeish)
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if err != nil {
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return nil, nil, nil, err
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}
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cmd.AddArguments("--cached")
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envs = append(envs,
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"GIT_INDEX_FILE="+indexFilename,
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"GIT_WORK_TREE="+worktree,
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)
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cancel = deleteTemporaryFile
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}
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} else {
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// Read from existing index, in cases where the repo is bare and has an index,
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// or the work tree contains unstaged changes that shouldn't affect the attribute check.
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// It is caller's responsibility to add changed ".gitattributes" into the index if they want to respect the new changes.
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cmd.AddArguments("--cached")
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}
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cmd.AddDynamicArguments(attributes...)
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if len(filenames) > 0 {
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cmd.AddDashesAndList(filenames...)
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}
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return cmd, envs, cancel, nil
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}
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type CheckAttributeOpts struct {
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Filenames []string
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Attributes []string
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}
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// CheckAttributes return the attributes of the given filenames and attributes in the given treeish.
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// If treeish is empty, then it will use current working directory, otherwise it will use the provided treeish on the bare repo
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func CheckAttributes(ctx context.Context, gitRepo *git.Repository, treeish string, opts CheckAttributeOpts) (map[string]*Attributes, error) {
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cmd, envs, cancel, err := checkAttrCommand(ctx, gitRepo, treeish, opts.Filenames, opts.Attributes)
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if err != nil {
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return nil, err
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}
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defer cancel()
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stdout, _, err := cmd.WithEnv(append(os.Environ(), envs...)).
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WithRepo(gitRepo).
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RunStdBytes(ctx)
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if err != nil {
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return nil, fmt.Errorf("failed to run check-attr: %w", err)
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}
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fields := bytes.Split(stdout, []byte{'\000'})
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if len(fields)%3 != 1 {
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return nil, errors.New("wrong number of fields in return from check-attr")
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}
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attributesMap := make(map[string]*Attributes)
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for i := 0; i < (len(fields) / 3); i++ {
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filename := string(fields[3*i])
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attribute := string(fields[3*i+1])
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info := string(fields[3*i+2])
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attribute2info, ok := attributesMap[filename]
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if !ok {
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attribute2info = NewAttributes()
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attributesMap[filename] = attribute2info
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}
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attribute2info.m[attribute] = Attribute(info)
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}
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return attributesMap, nil
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}
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