webhook: add file status to push event (#3897)

vendor/github.com/gogits/git-module/commit.go

@@ -6,8 +6,10 @@ package git
 
 import (
 	"bufio"
+	"bytes"
 	"container/list"
 	"fmt"
+	"io"
 	"net/http"
 	"strconv"
 	"strings"
@@ -252,3 +254,55 @@ func (c *Commit) GetSubModule(entryname string) (*SubModule, error) {
 	}
 	return nil, nil
 }
+
+// CommitFileStatus represents status of files in a commit.
+type CommitFileStatus struct {
+	Added    []string
+	Removed  []string
+	Modified []string
+}
+
+func NewCommitFileStatus() *CommitFileStatus {
+	return &CommitFileStatus{
+		[]string{}, []string{}, []string{},
+	}
+}
+
+// GetCommitFileStatus returns file status of commit in given repository.
+func GetCommitFileStatus(repoPath, commitID string) (*CommitFileStatus, error) {
+	stdout, w := io.Pipe()
+	defer stdout.Close()
+
+	stderr := new(bytes.Buffer)
+
+	fileStatus := NewCommitFileStatus()
+	go func() {
+		scanner := bufio.NewScanner(stdout)
+		for scanner.Scan() {
+			fields := strings.Fields(scanner.Text())
+			if len(fields) < 2 {
+				continue
+			}
+
+			switch fields[0][0] {
+			case 'A':
+				fileStatus.Added = append(fileStatus.Added, fields[1])
+			case 'D':
+				fileStatus.Removed = append(fileStatus.Removed, fields[1])
+			case 'M':
+				fileStatus.Modified = append(fileStatus.Modified, fields[1])
+			}
+		}
+	}()
+
+	if err := NewCommand("log", "-1", "--name-status", "--pretty=format:''", commitID).RunInDirPipeline(repoPath, w, stderr); err != nil {
+		return nil, concatenateError(err, stderr.String())
+	}
+
+	return fileStatus, nil
+}
+
+// FileStatus returns file status of commit.
+func (c *Commit) FileStatus() (*CommitFileStatus, error) {
+	return GetCommitFileStatus(c.repo.Path, c.ID.String())
+}