mirror of
https://github.com/go-gitea/gitea.git
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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>
200 lines
5.5 KiB
Go
200 lines
5.5 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package files
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import (
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"context"
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"fmt"
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"strings"
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"code.gitea.io/gitea/models"
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git_model "code.gitea.io/gitea/models/git"
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repo_model "code.gitea.io/gitea/models/repo"
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user_model "code.gitea.io/gitea/models/user"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/gitrepo"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/structs"
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asymkey_service "code.gitea.io/gitea/services/asymkey"
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)
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// ApplyDiffPatchOptions holds the repository diff patch update options
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type ApplyDiffPatchOptions struct {
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LastCommitID string
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OldBranch string
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NewBranch string
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Message string
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Content string
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SHA string
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Author *IdentityOptions
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Committer *IdentityOptions
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Dates *CommitDateOptions
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Signoff bool
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}
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// Validate validates the provided options
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func (opts *ApplyDiffPatchOptions) Validate(ctx context.Context, repo *repo_model.Repository, doer *user_model.User) error {
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// If no branch name is set, assume master
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if opts.OldBranch == "" {
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opts.OldBranch = repo.DefaultBranch
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}
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if opts.NewBranch == "" {
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opts.NewBranch = opts.OldBranch
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}
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gitRepo, closer, err := gitrepo.RepositoryFromContextOrOpen(ctx, repo)
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if err != nil {
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return err
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}
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defer closer.Close()
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// oldBranch must exist for this operation
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if _, err := gitRepo.GetBranch(opts.OldBranch); err != nil {
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return err
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}
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// A NewBranch can be specified for the patch to be applied to.
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// Check to make sure the branch does not already exist, otherwise we can't proceed.
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// If we aren't branching to a new branch, make sure user can commit to the given branch
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if opts.NewBranch != opts.OldBranch {
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existingBranch, err := gitRepo.GetBranch(opts.NewBranch)
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if existingBranch != nil {
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return git_model.ErrBranchAlreadyExists{
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BranchName: opts.NewBranch,
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}
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}
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if err != nil && !git.IsErrBranchNotExist(err) {
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return err
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}
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} else {
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protectedBranch, err := git_model.GetFirstMatchProtectedBranchRule(ctx, repo.ID, opts.OldBranch)
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if err != nil {
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return err
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}
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if protectedBranch != nil {
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protectedBranch.Repo = repo
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if !protectedBranch.CanUserPush(ctx, doer) {
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return models.ErrUserCannotCommit{
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UserName: doer.LowerName,
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}
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}
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}
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if protectedBranch != nil && protectedBranch.RequireSignedCommits {
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_, _, _, err := asymkey_service.SignCRUDAction(ctx, repo.RepoPath(), doer, repo.RepoPath(), opts.OldBranch)
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if err != nil {
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if !asymkey_service.IsErrWontSign(err) {
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return err
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}
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return models.ErrUserCannotCommit{
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UserName: doer.LowerName,
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}
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}
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}
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}
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return nil
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}
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// ApplyDiffPatch applies a patch to the given repository
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func ApplyDiffPatch(ctx context.Context, repo *repo_model.Repository, doer *user_model.User, opts *ApplyDiffPatchOptions) (*structs.FileResponse, error) {
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err := repo.MustNotBeArchived()
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if err != nil {
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return nil, err
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}
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if err := opts.Validate(ctx, repo, doer); err != nil {
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return nil, err
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}
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message := strings.TrimSpace(opts.Message)
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author, committer := GetAuthorAndCommitterUsers(opts.Author, opts.Committer, doer)
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t, err := NewTemporaryUploadRepository(ctx, repo)
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if err != nil {
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log.Error("%v", err)
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}
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defer t.Close()
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if err := t.Clone(opts.OldBranch, true); err != nil {
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return nil, err
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}
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if err := t.SetDefaultIndex(); err != nil {
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return nil, err
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}
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// Get the commit of the original branch
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commit, err := t.GetBranchCommit(opts.OldBranch)
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if err != nil {
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return nil, err // Couldn't get a commit for the branch
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}
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// Assigned LastCommitID in opts if it hasn't been set
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if opts.LastCommitID == "" {
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opts.LastCommitID = commit.ID.String()
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} else {
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lastCommitID, err := t.gitRepo.ConvertToGitID(opts.LastCommitID)
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if err != nil {
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return nil, fmt.Errorf("ApplyPatch: Invalid last commit ID: %w", err)
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}
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opts.LastCommitID = lastCommitID.String()
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if commit.ID.String() != opts.LastCommitID {
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return nil, models.ErrCommitIDDoesNotMatch{
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GivenCommitID: opts.LastCommitID,
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CurrentCommitID: opts.LastCommitID,
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}
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}
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}
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stdout := &strings.Builder{}
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stderr := &strings.Builder{}
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cmdApply := git.NewCommand(ctx, "apply", "--index", "--recount", "--cached", "--ignore-whitespace", "--whitespace=fix", "--binary")
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if git.CheckGitVersionAtLeast("2.32") == nil {
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cmdApply.AddArguments("-3")
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}
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if err := cmdApply.Run(&git.RunOpts{
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Dir: t.basePath,
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Stdout: stdout,
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Stderr: stderr,
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Stdin: strings.NewReader(opts.Content),
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}); err != nil {
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return nil, fmt.Errorf("Error: Stdout: %s\nStderr: %s\nErr: %w", stdout.String(), stderr.String(), err)
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}
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// Now write the tree
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treeHash, err := t.WriteTree()
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if err != nil {
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return nil, err
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}
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// Now commit the tree
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var commitHash string
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if opts.Dates != nil {
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commitHash, err = t.CommitTreeWithDate("HEAD", author, committer, treeHash, message, opts.Signoff, opts.Dates.Author, opts.Dates.Committer)
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} else {
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commitHash, err = t.CommitTree("HEAD", author, committer, treeHash, message, opts.Signoff)
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}
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if err != nil {
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return nil, err
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}
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// Then push this tree to NewBranch
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if err := t.Push(doer, commitHash, opts.NewBranch); err != nil {
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return nil, err
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}
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commit, err = t.GetCommit(commitHash)
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if err != nil {
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return nil, err
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}
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fileCommitResponse, _ := GetFileCommitResponse(repo, commit) // ok if fails, then will be nil
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verification := GetPayloadCommitVerification(ctx, commit)
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fileResponse := &structs.FileResponse{
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Commit: fileCommitResponse,
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Verification: verification,
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}
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return fileResponse, nil
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}
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