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7 changed files with 591 additions and 430 deletions
272
models/git.go
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272
models/git.go
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// Copyright 2014 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 models
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import (
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"container/list"
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"fmt"
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"path"
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"strings"
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"github.com/Unknwon/com"
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"github.com/gogits/git"
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)
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// RepoFile represents a file object in git repository.
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type RepoFile struct {
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*git.TreeEntry
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Path string
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Size int64
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Repo *git.Repository
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Commit *git.Commit
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}
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// LookupBlob returns the content of an object.
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func (file *RepoFile) LookupBlob() (*git.Blob, error) {
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if file.Repo == nil {
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return nil, ErrRepoFileNotLoaded
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}
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return file.Repo.LookupBlob(file.Id)
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}
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// GetBranches returns all branches of given repository.
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func GetBranches(userName, reposName string) ([]string, error) {
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repo, err := git.OpenRepository(RepoPath(userName, reposName))
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if err != nil {
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return nil, err
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}
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refs, err := repo.AllReferences()
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if err != nil {
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return nil, err
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}
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brs := make([]string, len(refs))
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for i, ref := range refs {
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brs[i] = ref.Name
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}
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return brs, nil
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}
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func GetTargetFile(userName, reposName, branchName, commitId, rpath string) (*RepoFile, error) {
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repo, err := git.OpenRepository(RepoPath(userName, reposName))
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if err != nil {
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return nil, err
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}
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commit, err := repo.GetCommit(branchName, commitId)
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if err != nil {
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return nil, err
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}
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parts := strings.Split(path.Clean(rpath), "/")
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var entry *git.TreeEntry
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tree := commit.Tree
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for i, part := range parts {
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if i == len(parts)-1 {
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entry = tree.EntryByName(part)
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if entry == nil {
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return nil, ErrRepoFileNotExist
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}
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} else {
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tree, err = repo.SubTree(tree, part)
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if err != nil {
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return nil, err
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}
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}
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}
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size, err := repo.ObjectSize(entry.Id)
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if err != nil {
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return nil, err
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}
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repoFile := &RepoFile{
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entry,
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rpath,
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size,
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repo,
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commit,
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}
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return repoFile, nil
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}
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// GetReposFiles returns a list of file object in given directory of repository.
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func GetReposFiles(userName, reposName, branchName, commitId, rpath string) ([]*RepoFile, error) {
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repo, err := git.OpenRepository(RepoPath(userName, reposName))
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if err != nil {
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return nil, err
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}
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commit, err := repo.GetCommit(branchName, commitId)
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if err != nil {
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return nil, err
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}
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var repodirs []*RepoFile
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var repofiles []*RepoFile
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commit.Tree.Walk(func(dirname string, entry *git.TreeEntry) int {
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if dirname == rpath {
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// TODO: size get method shoule be improved
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size, err := repo.ObjectSize(entry.Id)
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if err != nil {
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return 0
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}
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var cm = commit
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var i int
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for {
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i = i + 1
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//fmt.Println(".....", i, cm.Id(), cm.ParentCount())
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if cm.ParentCount() == 0 {
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break
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} else if cm.ParentCount() == 1 {
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pt, _ := repo.SubTree(cm.Parent(0).Tree, dirname)
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if pt == nil {
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break
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}
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pEntry := pt.EntryByName(entry.Name)
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if pEntry == nil || !pEntry.Id.Equal(entry.Id) {
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break
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} else {
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cm = cm.Parent(0)
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}
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} else {
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var emptyCnt = 0
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var sameIdcnt = 0
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var lastSameCm *git.Commit
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//fmt.Println(".....", cm.ParentCount())
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for i := 0; i < cm.ParentCount(); i++ {
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//fmt.Println("parent", i, cm.Parent(i).Id())
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p := cm.Parent(i)
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pt, _ := repo.SubTree(p.Tree, dirname)
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var pEntry *git.TreeEntry
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if pt != nil {
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pEntry = pt.EntryByName(entry.Name)
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}
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//fmt.Println("pEntry", pEntry)
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if pEntry == nil {
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emptyCnt = emptyCnt + 1
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if emptyCnt+sameIdcnt == cm.ParentCount() {
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if lastSameCm == nil {
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goto loop
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} else {
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cm = lastSameCm
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break
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}
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}
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} else {
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//fmt.Println(i, "pEntry", pEntry.Id, "entry", entry.Id)
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if !pEntry.Id.Equal(entry.Id) {
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goto loop
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} else {
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lastSameCm = cm.Parent(i)
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sameIdcnt = sameIdcnt + 1
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if emptyCnt+sameIdcnt == cm.ParentCount() {
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// TODO: now follow the first parent commit?
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cm = lastSameCm
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//fmt.Println("sameId...")
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break
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}
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}
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}
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}
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}
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}
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loop:
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rp := &RepoFile{
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entry,
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path.Join(dirname, entry.Name),
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size,
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repo,
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cm,
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}
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if entry.IsFile() {
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repofiles = append(repofiles, rp)
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} else if entry.IsDir() {
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repodirs = append(repodirs, rp)
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}
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}
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return 0
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})
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return append(repodirs, repofiles...), nil
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}
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func GetCommit(userName, repoName, branchname, commitid string) (*git.Commit, error) {
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repo, err := git.OpenRepository(RepoPath(userName, repoName))
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if err != nil {
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return nil, err
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}
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return repo.GetCommit(branchname, commitid)
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}
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// GetCommits returns all commits of given branch of repository.
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func GetCommits(userName, reposName, branchname string) (*list.List, error) {
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repo, err := git.OpenRepository(RepoPath(userName, reposName))
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if err != nil {
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return nil, err
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}
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r, err := repo.LookupReference(fmt.Sprintf("refs/heads/%s", branchname))
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if err != nil {
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return nil, err
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}
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return r.AllCommits()
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}
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type DiffFile struct {
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Name string
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Addition, Deletion int
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Type string
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Content []string
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}
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type Diff struct {
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NumFiles int // Number of file has been changed.
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TotalAddition, TotalDeletion int
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Files []*DiffFile
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}
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func GetDiff(repoPath, commitid string) (*Diff, error) {
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stdout, _, err := com.ExecCmdDir(repoPath, "git", "show", commitid)
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if err != nil {
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return nil, err
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}
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// Sperate parts by file.
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parts := strings.Split(stdout, "diff --git ")
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// First part is commit information.
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// Check if it's a merge.
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mergeIndex := strings.Index(parts[0], "merge")
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if mergeIndex > -1 {
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mergeCommit := strings.SplitN(strings.Split(parts[0], "\n")[1], "", 3)[2]
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return GetDiff(repoPath, mergeCommit)
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}
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diff := &Diff{NumFiles: len(parts[1:])}
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diff.Files = make([]*DiffFile, 0, diff.NumFiles)
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for _, part := range parts[1:] {
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infos := strings.SplitN(part, "\n", 6)
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infos[5] = strings.TrimSuffix(strings.TrimSuffix(infos[5], "\n"), "\n\\ No newline at end of file")
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file := &DiffFile{
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Name: strings.TrimPrefix(strings.Split(infos[0], " ")[0], "a/"),
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Content: strings.Split(infos[5], "\n"),
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}
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diff.Files = append(diff.Files, file)
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}
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return diff, nil
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}
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