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// Copyright 2014 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package git
import (
"bufio"
"container/list"
"strings"
)
// Commit represents a git commit.
type Commit struct {
Tree
Id sha1 // The id of this commit object
Author *Signature
Committer *Signature
CommitMessage string
parents []sha1 // sha1 strings
submodules map[string]*SubModule
}
// Return the commit message. Same as retrieving CommitMessage directly.
func (c *Commit) Message() string {
return c.CommitMessage
}
func (c *Commit) Summary() string {
return strings.Split(c.CommitMessage, "\n")[0]
}
// Return oid of the parent number n (0-based index). Return nil if no such parent exists.
func (c *Commit) ParentId(n int) (id sha1, err error) {
if n >= len(c.parents) {
err = IdNotExist
return
}
return c.parents[n], nil
}
// Return parent number n (0-based index)
func (c *Commit) Parent(n int) (*Commit, error) {
id, err := c.ParentId(n)
if err != nil {
return nil, err
}
parent, err := c.repo.getCommit(id)
if err != nil {
return nil, err
}
return parent, nil
}
// Return the number of parents of the commit. 0 if this is the
// root commit, otherwise 1,2,...
func (c *Commit) ParentCount() int {
return len(c.parents)
}
func (c *Commit) CommitsBefore() (*list.List, error) {
return c.repo.getCommitsBefore(c.Id)
}
func (c *Commit) CommitsBeforeUntil(commitId string) (*list.List, error) {
ec, err := c.repo.GetCommit(commitId)
if err != nil {
return nil, err
}
return c.repo.CommitsBetween(c, ec)
}
func (c *Commit) CommitsCount() (int, error) {
return c.repo.commitsCount(c.Id)
}
func (c *Commit) SearchCommits(keyword string) (*list.List, error) {
return c.repo.searchCommits(c.Id, keyword)
}
func (c *Commit) CommitsByRange(page int) (*list.List, error) {
return c.repo.commitsByRange(c.Id, page)
}
func (c *Commit) GetCommitOfRelPath(relPath string) (*Commit, error) {
return c.repo.getCommitOfRelPath(c.Id, relPath)
}
func (c *Commit) GetSubModule(entryname string) (*SubModule, error) {
moduels, err := c.GetSubModules()
if err != nil {
return nil, err
}
return moduels[entryname], nil
}
func (c *Commit) GetSubModules() (map[string]*SubModule, error) {
if c.submodules != nil {
return c.submodules, nil
}
entry, err := c.GetTreeEntryByPath(".gitmodules")
if err != nil {
return nil, err
}
rd, err := entry.Blob().Data()
if err != nil {
return nil, err
}
scanner := bufio.NewScanner(rd)
c.submodules = make(map[string]*SubModule)
var ismodule bool
var path string
for scanner.Scan() {
if strings.HasPrefix(scanner.Text(), "[submodule") {
ismodule = true
continue
}
if ismodule {
fields := strings.Split(scanner.Text(), "=")
k := strings.TrimSpace(fields[0])
if k == "path" {
path = strings.TrimSpace(fields[1])
} else if k == "url" {
c.submodules[path] = &SubModule{path, strings.TrimSpace(fields[1])}
ismodule = false
}
}
}
return c.submodules, nil
}
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