// logPreviousVersions scans history for all previous versions of LFS pointers
// from 'since' up to (but not including) the final state at ref
func logPreviousSHAs(ref string, since time.Time) (chan *WrappedPointer, error) {
logArgs := []string{"log",
fmt.Sprintf("--since=%v", git.FormatGitDate(since)),
}
// Add standard search args to find lfs references
logArgs = append(logArgs, logLfsSearchArgs...)
// ending at ref
logArgs = append(logArgs, ref)
cmd, err := startCommand("git", logArgs...)
if err != nil {
return nil, err
}
cmd.Stdin.Close()
pchan := make(chan *WrappedPointer, chanBufSize)
// we pull out deletions, since we want the previous SHAs at commits in the range
// this means we pick up all previous versions that could have been checked
// out in the date range, not just if the commit which *introduced* them is in the range
go parseLogOutputToPointers(cmd.Stdout, LogDiffDeletions, nil, nil, pchan)
return pchan, nil
}
func commitAtDate(atDate time.Time, committerName, committerEmail, msg string) error {
var args []string
if committerName != "" && committerEmail != "" {
args = append(args, "-c", fmt.Sprintf("user.name=%v", committerName))
args = append(args, "-c", fmt.Sprintf("user.email=%v", committerEmail))
}
args = append(args, "commit", "--allow-empty", "-m", msg)
cmd := exec.Command("git", args...)
env := os.Environ()
// set GIT_COMMITTER_DATE environment var e.g. "Fri Jun 21 20:26:41 2013 +0900"
if atDate.IsZero() {
env = append(env, "GIT_COMMITTER_DATE=")
} else {
env = append(env, fmt.Sprintf("GIT_COMMITTER_DATE=%v", git.FormatGitDate(atDate)))
}
cmd.Env = env
out, err := cmd.CombinedOutput()
if err != nil {
return fmt.Errorf("%v %v", err, string(out))
}
return nil
}
// logPreviousVersions scans history for all previous versions of LFS pointers
// from 'since' up to (but not including) the final state at ref
func logPreviousSHAs(ref string, since time.Time) (*PointerChannelWrapper, error) {
logArgs := []string{"log",
fmt.Sprintf("--since=%v", git.FormatGitDate(since)),
}
// Add standard search args to find lfs references
logArgs = append(logArgs, logLfsSearchArgs...)
// ending at ref
logArgs = append(logArgs, ref)
cmd, err := startCommand("git", logArgs...)
if err != nil {
return nil, err
}
cmd.Stdin.Close()
pchan := make(chan *WrappedPointer, chanBufSize)
errchan := make(chan error, 1)
// we pull out deletions, since we want the previous SHAs at commits in the range
// this means we pick up all previous versions that could have been checked
// out in the date range, not just if the commit which *introduced* them is in the range
go func() {
parseLogOutputToPointers(cmd.Stdout, LogDiffDeletions, nil, nil, pchan)
stderr, _ := ioutil.ReadAll(cmd.Stderr)
err := cmd.Wait()
if err != nil {
errchan <- fmt.Errorf("Error in git log: %v %v", err, string(stderr))
}
close(pchan)
close(errchan)
}()
return NewPointerChannelWrapper(pchan, errchan), nil
}