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44053532bb
* Serve .patch for pull requests Closes #3259 Updates "git" module, for GetFormatPatch * Handle io.Copy error
90 lines
2.7 KiB
Go
90 lines
2.7 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package git
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import (
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"bytes"
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"container/list"
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"fmt"
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"io"
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"strconv"
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"strings"
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"time"
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)
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// PullRequestInfo represents needed information for a pull request.
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type PullRequestInfo struct {
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MergeBase string
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Commits *list.List
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NumFiles int
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}
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// GetMergeBase checks and returns merge base of two branches.
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func (repo *Repository) GetMergeBase(base, head string) (string, error) {
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stdout, err := NewCommand("merge-base", base, head).RunInDir(repo.Path)
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return strings.TrimSpace(stdout), err
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}
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// GetPullRequestInfo generates and returns pull request information
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// between base and head branches of repositories.
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func (repo *Repository) GetPullRequestInfo(basePath, baseBranch, headBranch string) (_ *PullRequestInfo, err error) {
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var remoteBranch string
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// We don't need a temporary remote for same repository.
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if repo.Path != basePath {
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// Add a temporary remote
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tmpRemote := strconv.FormatInt(time.Now().UnixNano(), 10)
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if err = repo.AddRemote(tmpRemote, basePath, true); err != nil {
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return nil, fmt.Errorf("AddRemote: %v", err)
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}
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defer repo.RemoveRemote(tmpRemote)
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remoteBranch = "remotes/" + tmpRemote + "/" + baseBranch
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} else {
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remoteBranch = baseBranch
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}
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prInfo := new(PullRequestInfo)
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prInfo.MergeBase, err = repo.GetMergeBase(remoteBranch, headBranch)
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if err != nil {
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return nil, fmt.Errorf("GetMergeBase: %v", err)
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}
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logs, err := NewCommand("log", prInfo.MergeBase+"..."+headBranch, prettyLogFormat).RunInDirBytes(repo.Path)
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if err != nil {
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return nil, err
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}
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prInfo.Commits, err = repo.parsePrettyFormatLogToList(logs)
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if err != nil {
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return nil, fmt.Errorf("parsePrettyFormatLogToList: %v", err)
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}
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// Count number of changed files.
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stdout, err := NewCommand("diff", "--name-only", remoteBranch+"..."+headBranch).RunInDir(repo.Path)
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if err != nil {
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return nil, err
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}
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prInfo.NumFiles = len(strings.Split(stdout, "\n")) - 1
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return prInfo, nil
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}
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// GetPatch generates and returns patch data between given revisions.
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func (repo *Repository) GetPatch(base, head string) ([]byte, error) {
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return NewCommand("diff", "-p", "--binary", base, head).RunInDirBytes(repo.Path)
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}
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// GetFormatPatch generates and returns format-patch data between given revisions.
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func (repo *Repository) GetFormatPatch(base, head string) (io.Reader, error) {
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stdout := new(bytes.Buffer)
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stderr := new(bytes.Buffer)
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if err := NewCommand("format-patch", "--binary", "--stdout", base+"..."+head).
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RunInDirPipeline(repo.Path, stdout, stderr); err != nil {
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return nil, concatenateError(err, stderr.String())
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}
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return stdout, nil
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}
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