mirror of
https://github.com/go-gitea/gitea
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## Purpose This is a refactor toward building an abstraction over managing git repositories. Afterwards, it does not matter anymore if they are stored on the local disk or somewhere remote. ## What this PR changes We used `git.OpenRepository` everywhere previously. Now, we should split them into two distinct functions: Firstly, there are temporary repositories which do not change: ```go git.OpenRepository(ctx, diskPath) ``` Gitea managed repositories having a record in the database in the `repository` table are moved into the new package `gitrepo`: ```go gitrepo.OpenRepository(ctx, repo_model.Repo) ``` Why is `repo_model.Repository` the second parameter instead of file path? Because then we can easily adapt our repository storage strategy. The repositories can be stored locally, however, they could just as well be stored on a remote server. ## Further changes in other PRs - A Git Command wrapper on package `gitrepo` could be created. i.e. `NewCommand(ctx, repo_model.Repository, commands...)`. `git.RunOpts{Dir: repo.RepoPath()}`, the directory should be empty before invoking this method and it can be filled in the function only. #28940 - Remove the `RepoPath()`/`WikiPath()` functions to reduce the possibility of mistakes. --------- Co-authored-by: delvh <dev.lh@web.de>
167 lines
4.5 KiB
Go
167 lines
4.5 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Copyright 2018 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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"errors"
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"fmt"
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"strings"
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)
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// BranchPrefix base dir of the branch information file store on git
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const BranchPrefix = "refs/heads/"
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// IsReferenceExist returns true if given reference exists in the repository.
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func IsReferenceExist(ctx context.Context, repoPath, name string) bool {
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_, _, err := NewCommand(ctx, "show-ref", "--verify").AddDashesAndList(name).RunStdString(&RunOpts{Dir: repoPath})
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return err == nil
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}
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// IsBranchExist returns true if given branch exists in the repository.
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func IsBranchExist(ctx context.Context, repoPath, name string) bool {
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return IsReferenceExist(ctx, repoPath, BranchPrefix+name)
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}
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// Branch represents a Git branch.
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type Branch struct {
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Name string
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Path string
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gitRepo *Repository
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}
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// GetHEADBranch returns corresponding branch of HEAD.
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func (repo *Repository) GetHEADBranch() (*Branch, error) {
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if repo == nil {
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return nil, fmt.Errorf("nil repo")
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}
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stdout, _, err := NewCommand(repo.Ctx, "symbolic-ref", "HEAD").RunStdString(&RunOpts{Dir: repo.Path})
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if err != nil {
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return nil, err
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}
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stdout = strings.TrimSpace(stdout)
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if !strings.HasPrefix(stdout, BranchPrefix) {
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return nil, fmt.Errorf("invalid HEAD branch: %v", stdout)
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}
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return &Branch{
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Name: stdout[len(BranchPrefix):],
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Path: stdout,
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gitRepo: repo,
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}, nil
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}
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// SetDefaultBranch sets default branch of repository.
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func (repo *Repository) SetDefaultBranch(name string) error {
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_, _, err := NewCommand(repo.Ctx, "symbolic-ref", "HEAD").AddDynamicArguments(BranchPrefix + name).RunStdString(&RunOpts{Dir: repo.Path})
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return err
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}
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// GetDefaultBranch gets default branch of repository.
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func (repo *Repository) GetDefaultBranch() (string, error) {
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stdout, _, err := NewCommand(repo.Ctx, "symbolic-ref", "HEAD").RunStdString(&RunOpts{Dir: repo.Path})
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if err != nil {
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return "", err
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}
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stdout = strings.TrimSpace(stdout)
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if !strings.HasPrefix(stdout, BranchPrefix) {
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return "", errors.New("the HEAD is not a branch: " + stdout)
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}
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return strings.TrimPrefix(stdout, BranchPrefix), nil
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}
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// GetBranch returns a branch by it's name
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func (repo *Repository) GetBranch(branch string) (*Branch, error) {
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if !repo.IsBranchExist(branch) {
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return nil, ErrBranchNotExist{branch}
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}
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return &Branch{
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Path: repo.Path,
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Name: branch,
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gitRepo: repo,
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}, nil
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}
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// GetBranches returns a slice of *git.Branch
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func (repo *Repository) GetBranches(skip, limit int) ([]*Branch, int, error) {
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brs, countAll, err := repo.GetBranchNames(skip, limit)
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if err != nil {
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return nil, 0, err
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}
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branches := make([]*Branch, len(brs))
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for i := range brs {
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branches[i] = &Branch{
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Path: repo.Path,
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Name: brs[i],
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gitRepo: repo,
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}
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}
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return branches, countAll, nil
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}
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// DeleteBranchOptions Option(s) for delete branch
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type DeleteBranchOptions struct {
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Force bool
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}
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// DeleteBranch delete a branch by name on repository.
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func (repo *Repository) DeleteBranch(name string, opts DeleteBranchOptions) error {
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cmd := NewCommand(repo.Ctx, "branch")
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if opts.Force {
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cmd.AddArguments("-D")
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} else {
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cmd.AddArguments("-d")
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}
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cmd.AddDashesAndList(name)
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_, _, err := cmd.RunStdString(&RunOpts{Dir: repo.Path})
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return err
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}
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// CreateBranch create a new branch
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func (repo *Repository) CreateBranch(branch, oldbranchOrCommit string) error {
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cmd := NewCommand(repo.Ctx, "branch")
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cmd.AddDashesAndList(branch, oldbranchOrCommit)
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_, _, err := cmd.RunStdString(&RunOpts{Dir: repo.Path})
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return err
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}
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// AddRemote adds a new remote to repository.
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func (repo *Repository) AddRemote(name, url string, fetch bool) error {
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cmd := NewCommand(repo.Ctx, "remote", "add")
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if fetch {
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cmd.AddArguments("-f")
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}
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cmd.AddDynamicArguments(name, url)
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_, _, err := cmd.RunStdString(&RunOpts{Dir: repo.Path})
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return err
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}
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// RemoveRemote removes a remote from repository.
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func (repo *Repository) RemoveRemote(name string) error {
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_, _, err := NewCommand(repo.Ctx, "remote", "rm").AddDynamicArguments(name).RunStdString(&RunOpts{Dir: repo.Path})
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return err
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}
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// GetCommit returns the head commit of a branch
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func (branch *Branch) GetCommit() (*Commit, error) {
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return branch.gitRepo.GetBranchCommit(branch.Name)
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}
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// RenameBranch rename a branch
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func (repo *Repository) RenameBranch(from, to string) error {
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_, _, err := NewCommand(repo.Ctx, "branch", "-m").AddDynamicArguments(from, to).RunStdString(&RunOpts{Dir: repo.Path})
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return err
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}
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