163 lines
3.5 KiB
Go
163 lines
3.5 KiB
Go
// 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 git
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import (
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"bufio"
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"container/list"
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"net/http"
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"strings"
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)
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// Commit represents a git commit.
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type Commit struct {
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Tree
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Id sha1 // The id of this commit object
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Author *Signature
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Committer *Signature
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CommitMessage string
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parents []sha1 // sha1 strings
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submodules map[string]*SubModule
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}
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// Return the commit message. Same as retrieving CommitMessage directly.
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func (c *Commit) Message() string {
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return c.CommitMessage
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}
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func (c *Commit) Summary() string {
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return strings.Split(c.CommitMessage, "\n")[0]
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}
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// Return oid of the parent number n (0-based index). Return nil if no such parent exists.
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func (c *Commit) ParentId(n int) (id sha1, err error) {
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if n >= len(c.parents) {
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err = IdNotExist
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return
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}
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return c.parents[n], nil
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}
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// Return parent number n (0-based index)
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func (c *Commit) Parent(n int) (*Commit, error) {
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id, err := c.ParentId(n)
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if err != nil {
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return nil, err
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}
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parent, err := c.repo.getCommit(id)
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if err != nil {
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return nil, err
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}
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return parent, nil
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}
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// Return the number of parents of the commit. 0 if this is the
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// root commit, otherwise 1,2,...
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func (c *Commit) ParentCount() int {
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return len(c.parents)
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}
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func (c *Commit) CommitsBefore() (*list.List, error) {
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return c.repo.getCommitsBefore(c.Id)
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}
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func (c *Commit) CommitsBeforeUntil(commitId string) (*list.List, error) {
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ec, err := c.repo.GetCommit(commitId)
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if err != nil {
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return nil, err
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}
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return c.repo.CommitsBetween(c, ec)
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}
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func (c *Commit) CommitsCount() (int, error) {
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return c.repo.commitsCount(c.Id)
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}
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func (c *Commit) SearchCommits(keyword string) (*list.List, error) {
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return c.repo.searchCommits(c.Id, keyword)
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}
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func (c *Commit) CommitsByRange(page int) (*list.List, error) {
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return c.repo.commitsByRange(c.Id, page)
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}
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func (c *Commit) GetCommitOfRelPath(relPath string) (*Commit, error) {
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return c.repo.getCommitOfRelPath(c.Id, relPath)
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}
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func (c *Commit) GetSubModule(entryname string) (*SubModule, error) {
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modules, err := c.GetSubModules()
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if err != nil {
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return nil, err
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}
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return modules[entryname], nil
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}
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func (c *Commit) GetSubModules() (map[string]*SubModule, error) {
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if c.submodules != nil {
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return c.submodules, nil
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}
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entry, err := c.GetTreeEntryByPath(".gitmodules")
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if err != nil {
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return nil, err
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}
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rd, err := entry.Blob().Data()
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if err != nil {
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return nil, err
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}
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scanner := bufio.NewScanner(rd)
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c.submodules = make(map[string]*SubModule)
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var ismodule bool
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var path string
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for scanner.Scan() {
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if strings.HasPrefix(scanner.Text(), "[submodule") {
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ismodule = true
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continue
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}
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if ismodule {
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fields := strings.Split(scanner.Text(), "=")
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k := strings.TrimSpace(fields[0])
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if k == "path" {
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path = strings.TrimSpace(fields[1])
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} else if k == "url" {
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c.submodules[path] = &SubModule{path, strings.TrimSpace(fields[1])}
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ismodule = false
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}
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}
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}
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return c.submodules, nil
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}
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func isImageFile(data []byte) (string, bool) {
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contentType := http.DetectContentType(data)
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if strings.Index(contentType, "image/") != -1 {
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return contentType, true
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}
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return contentType, false
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}
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func (c *Commit) IsImageFile(name string) bool {
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blob, err := c.GetBlobByPath(name)
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if err != nil {
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return false
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}
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dataRc, err := blob.Data()
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if err != nil {
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return false
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}
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buf := make([]byte, 1024)
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n, _ := dataRc.Read(buf)
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if n > 0 {
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buf = buf[:n]
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}
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_, isImage := isImageFile(buf)
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return isImage
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}
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