forked from gitea/gitea
Fix modified files list in webhooks when there is a space (#16288)
* Fix modified files list in webhooks when there is a space There is an unfortunate bug with GetCommitFileStatus where files with spaces are misparsed and split at the space. There is a second bug because modern gits detect renames meaning that this function no longer works correctly. There is a third bug in that merge commits don't have their modified files detected correctly. Fix #15865 Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath
GitHub
parent
836884429a
commit
62c278e4ab
@ -15,6 +15,8 @@ import (
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"os/exec"
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"strconv"
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"strings"
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"code.gitea.io/gitea/modules/log"
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)
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// Commit represents a git commit.
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@ -432,33 +434,59 @@ func NewCommitFileStatus() *CommitFileStatus {
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}
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}
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func parseCommitFileStatus(fileStatus *CommitFileStatus, stdout io.Reader) {
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rd := bufio.NewReader(stdout)
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peek, err := rd.Peek(1)
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if err != nil {
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if err != io.EOF {
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log.Error("Unexpected error whilst reading from git log --name-status. Error: %v", err)
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}
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return
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}
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if peek[0] == '\n' || peek[0] == '\x00' {
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_, _ = rd.Discard(1)
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}
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for {
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modifier, err := rd.ReadSlice('\x00')
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if err != nil {
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if err != io.EOF {
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log.Error("Unexpected error whilst reading from git log --name-status. Error: %v", err)
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}
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return
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}
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file, err := rd.ReadString('\x00')
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if err != nil {
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if err != io.EOF {
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log.Error("Unexpected error whilst reading from git log --name-status. Error: %v", err)
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}
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return
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}
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file = file[:len(file)-1]
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switch modifier[0] {
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case 'A':
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fileStatus.Added = append(fileStatus.Added, file)
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case 'D':
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fileStatus.Removed = append(fileStatus.Removed, file)
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case 'M':
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fileStatus.Modified = append(fileStatus.Modified, file)
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}
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}
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}
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// GetCommitFileStatus returns file status of commit in given repository.
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func GetCommitFileStatus(repoPath, commitID string) (*CommitFileStatus, error) {
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stdout, w := io.Pipe()
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done := make(chan struct{})
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fileStatus := NewCommitFileStatus()
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go func() {
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scanner := bufio.NewScanner(stdout)
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for scanner.Scan() {
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fields := strings.Fields(scanner.Text())
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if len(fields) < 2 {
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continue
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}
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switch fields[0][0] {
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case 'A':
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fileStatus.Added = append(fileStatus.Added, fields[1])
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case 'D':
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fileStatus.Removed = append(fileStatus.Removed, fields[1])
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case 'M':
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fileStatus.Modified = append(fileStatus.Modified, fields[1])
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}
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}
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done <- struct{}{}
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parseCommitFileStatus(fileStatus, stdout)
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close(done)
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}()
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stderr := new(bytes.Buffer)
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err := NewCommand("show", "--name-status", "--pretty=format:''", commitID).RunInDirPipeline(repoPath, w, stderr)
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args := []string{"log", "--name-status", "-c", "--pretty=format:", "--parents", "--no-renames", "-z", "-1", commitID}
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err := NewCommand(args...).RunInDirPipeline(repoPath, w, stderr)
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w.Close() // Close writer to exit parsing goroutine
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if err != nil {
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return nil, ConcatenateError(err, stderr.String())
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@ -130,3 +130,109 @@ func TestHasPreviousCommit(t *testing.T) {
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assert.NoError(t, err)
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assert.False(t, selfNot)
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}
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func TestParseCommitFileStatus(t *testing.T) {
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type testcase struct {
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output string
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added []string
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removed []string
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modified []string
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}
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kases := []testcase{
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{
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// Merge commit
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output: "MM\x00options/locale/locale_en-US.ini\x00",
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modified: []string{
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"options/locale/locale_en-US.ini",
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},
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added: []string{},
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removed: []string{},
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},
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{
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// Spaces commit
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output: "D\x00b\x00D\x00b b/b\x00A\x00b b/b b/b b/b\x00A\x00b b/b b/b b/b b/b\x00",
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removed: []string{
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"b",
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"b b/b",
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},
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modified: []string{},
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added: []string{
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"b b/b b/b b/b",
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"b b/b b/b b/b b/b",
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},
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},
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{
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// larger commit
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output: "M\x00go.mod\x00M\x00go.sum\x00M\x00modules/ssh/ssh.go\x00M\x00vendor/github.com/gliderlabs/ssh/circle.yml\x00M\x00vendor/github.com/gliderlabs/ssh/context.go\x00A\x00vendor/github.com/gliderlabs/ssh/go.mod\x00A\x00vendor/github.com/gliderlabs/ssh/go.sum\x00M\x00vendor/github.com/gliderlabs/ssh/server.go\x00M\x00vendor/github.com/gliderlabs/ssh/session.go\x00M\x00vendor/github.com/gliderlabs/ssh/ssh.go\x00M\x00vendor/golang.org/x/sys/unix/mkerrors.sh\x00M\x00vendor/golang.org/x/sys/unix/syscall_darwin.go\x00M\x00vendor/golang.org/x/sys/unix/zerrors_darwin_amd64.go\x00M\x00vendor/golang.org/x/sys/unix/zerrors_darwin_arm64.go\x00M\x00vendor/golang.org/x/sys/unix/zerrors_freebsd_386.go\x00M\x00vendor/golang.org/x/sys/unix/zerrors_freebsd_amd64.go\x00M\x00vendor/golang.org/x/sys/unix/zerrors_freebsd_arm.go\x00M\x00vendor/golang.org/x/sys/unix/zerrors_freebsd_arm64.go\x00M\x00vendor/golang.org/x/sys/unix/zerrors_linux.go\x00M\x00vendor/golang.org/x/sys/unix/ztypes_darwin_amd64.go\x00M\x00vendor/golang.org/x/sys/unix/ztypes_darwin_arm64.go\x00M\x00vendor/golang.org/x/sys/unix/ztypes_dragonfly_amd64.go\x00M\x00vendor/golang.org/x/sys/unix/ztypes_freebsd_386.go\x00M\x00vendor/golang.org/x/sys/unix/ztypes_freebsd_amd64.go\x00M\x00vendor/golang.org/x/sys/unix/ztypes_freebsd_arm.go\x00M\x00vendor/golang.org/x/sys/unix/ztypes_freebsd_arm64.go\x00M\x00vendor/golang.org/x/sys/unix/ztypes_netbsd_386.go\x00M\x00vendor/golang.org/x/sys/unix/ztypes_netbsd_amd64.go\x00M\x00vendor/golang.org/x/sys/unix/ztypes_netbsd_arm.go\x00M\x00vendor/golang.org/x/sys/unix/ztypes_netbsd_arm64.go\x00M\x00vendor/modules.txt\x00",
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modified: []string{
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"go.mod",
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"go.sum",
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"modules/ssh/ssh.go",
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"vendor/github.com/gliderlabs/ssh/circle.yml",
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"vendor/github.com/gliderlabs/ssh/context.go",
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"vendor/github.com/gliderlabs/ssh/server.go",
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"vendor/github.com/gliderlabs/ssh/session.go",
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"vendor/github.com/gliderlabs/ssh/ssh.go",
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"vendor/golang.org/x/sys/unix/mkerrors.sh",
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"vendor/golang.org/x/sys/unix/syscall_darwin.go",
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"vendor/golang.org/x/sys/unix/zerrors_darwin_amd64.go",
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"vendor/golang.org/x/sys/unix/zerrors_darwin_arm64.go",
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"vendor/golang.org/x/sys/unix/zerrors_freebsd_386.go",
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"vendor/golang.org/x/sys/unix/zerrors_freebsd_amd64.go",
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"vendor/golang.org/x/sys/unix/zerrors_freebsd_arm.go",
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"vendor/golang.org/x/sys/unix/zerrors_freebsd_arm64.go",
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"vendor/golang.org/x/sys/unix/zerrors_linux.go",
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"vendor/golang.org/x/sys/unix/ztypes_darwin_amd64.go",
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"vendor/golang.org/x/sys/unix/ztypes_darwin_arm64.go",
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"vendor/golang.org/x/sys/unix/ztypes_dragonfly_amd64.go",
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"vendor/golang.org/x/sys/unix/ztypes_freebsd_386.go",
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"vendor/golang.org/x/sys/unix/ztypes_freebsd_amd64.go",
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"vendor/golang.org/x/sys/unix/ztypes_freebsd_arm.go",
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"vendor/golang.org/x/sys/unix/ztypes_freebsd_arm64.go",
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"vendor/golang.org/x/sys/unix/ztypes_netbsd_386.go",
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"vendor/golang.org/x/sys/unix/ztypes_netbsd_amd64.go",
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"vendor/golang.org/x/sys/unix/ztypes_netbsd_arm.go",
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"vendor/golang.org/x/sys/unix/ztypes_netbsd_arm64.go",
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"vendor/modules.txt",
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},
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added: []string{
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"vendor/github.com/gliderlabs/ssh/go.mod",
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"vendor/github.com/gliderlabs/ssh/go.sum",
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},
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removed: []string{},
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},
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{
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// git 1.7.2 adds an unnecessary \x00 on merge commit
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output: "\x00MM\x00options/locale/locale_en-US.ini\x00",
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modified: []string{
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"options/locale/locale_en-US.ini",
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},
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added: []string{},
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removed: []string{},
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},
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{
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// git 1.7.2 adds an unnecessary \n on normal commit
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output: "\nD\x00b\x00D\x00b b/b\x00A\x00b b/b b/b b/b\x00A\x00b b/b b/b b/b b/b\x00",
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removed: []string{
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"b",
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"b b/b",
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},
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modified: []string{},
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added: []string{
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"b b/b b/b b/b",
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"b b/b b/b b/b b/b",
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},
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},
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}
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for _, kase := range kases {
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fileStatus := NewCommitFileStatus()
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parseCommitFileStatus(fileStatus, strings.NewReader(kase.output))
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assert.Equal(t, kase.added, fileStatus.Added)
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assert.Equal(t, kase.removed, fileStatus.Removed)
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assert.Equal(t, kase.modified, fileStatus.Modified)
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}
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}
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