func readyAndMissingPointers(allpointers []*lfs.WrappedPointer, include, exclude []string) ([]*lfs.WrappedPointer, []*lfs.WrappedPointer, int64) {
size := int64(0)
seen := make(map[string]bool, len(allpointers))
missing := make([]*lfs.WrappedPointer, 0, len(allpointers))
ready := make([]*lfs.WrappedPointer, 0, len(allpointers))
for _, p := range allpointers {
// Filtered out by --include or --exclude
if !lfs.FilenamePassesIncludeExcludeFilter(p.Name, include, exclude) {
continue
}
// no need to download the same object multiple times
if seen[p.Oid] {
continue
}
seen[p.Oid] = true
// no need to download objects that exist locally already
lfs.LinkOrCopyFromReference(p.Oid, p.Size)
if lfs.ObjectExistsOfSize(p.Oid, p.Size) {
ready = append(ready, p)
continue
}
missing = append(missing, p)
size += p.Size
}
return ready, missing, size
}
func smudgeCommand(cmd *cobra.Command, args []string) {
requireStdin("This command should be run by the Git 'smudge' filter")
lfs.InstallHooks(false)
// keeps the initial buffer from lfs.DecodePointer
b := &bytes.Buffer{}
r := io.TeeReader(os.Stdin, b)
ptr, err := lfs.DecodePointer(r)
if err != nil {
mr := io.MultiReader(b, os.Stdin)
_, err := io.Copy(os.Stdout, mr)
if err != nil {
Panic(err, "Error writing data to stdout:")
}
return
}
lfs.LinkOrCopyFromReference(ptr.Oid, ptr.Size)
if smudgeInfo {
localPath, err := lfs.LocalMediaPath(ptr.Oid)
if err != nil {
Exit(err.Error())
}
stat, err := os.Stat(localPath)
if err != nil {
Print("%d --", ptr.Size)
} else {
Print("%d %s", stat.Size(), localPath)
}
return
}
filename := smudgeFilename(args, err)
cb, file, err := lfs.CopyCallbackFile("smudge", filename, 1, 1)
if err != nil {
Error(err.Error())
}
download := lfs.FilenamePassesIncludeExcludeFilter(filename, cfg.FetchIncludePaths(), cfg.FetchExcludePaths())
if smudgeSkip || cfg.Os.Bool("GIT_LFS_SKIP_SMUDGE", false) {
download = false
}
err = ptr.Smudge(os.Stdout, filename, download, TransferManifest(), cb)
if file != nil {
file.Close()
}
if err != nil {
ptr.Encode(os.Stdout)
// Download declined error is ok to skip if we weren't requesting download
if !(errors.IsDownloadDeclinedError(err) && !download) {
LoggedError(err, "Error downloading object: %s (%s)", filename, ptr.Oid)
if !cfg.SkipDownloadErrors() {
os.Exit(2)
}
}
}
}
// Fetch and report completion of each OID to a channel (optional, pass nil to skip)
// Returns true if all completed with no errors, false if errors were written to stderr/log
func fetchAndReportToChan(pointers []*lfs.WrappedPointer, include, exclude []string, out chan<- *lfs.WrappedPointer) bool {
totalSize := int64(0)
for _, p := range pointers {
totalSize += p.Size
}
q := lfs.NewDownloadQueue(len(pointers), totalSize, false)
if out != nil {
dlwatch := q.Watch()
go func() {
// fetch only reports single OID, but OID *might* be referenced by multiple
// WrappedPointers if same content is at multiple paths, so map oid->slice
oidToPointers := make(map[string][]*lfs.WrappedPointer, len(pointers))
for _, pointer := range pointers {
plist := oidToPointers[pointer.Oid]
oidToPointers[pointer.Oid] = append(plist, pointer)
}
for oid := range dlwatch {
plist, ok := oidToPointers[oid]
if !ok {
continue
}
for _, p := range plist {
out <- p
}
}
close(out)
}()
}
for _, p := range pointers {
// Only add to download queue if local file is not the right size already
// This avoids previous case of over-reporting a requirement for files we already have
// which would only be skipped by PointerSmudgeObject later
passFilter := lfs.FilenamePassesIncludeExcludeFilter(p.Name, include, exclude)
lfs.LinkOrCopyFromReference(p.Oid, p.Size)
if !lfs.ObjectExistsOfSize(p.Oid, p.Size) && passFilter {
tracerx.Printf("fetch %v [%v]", p.Name, p.Oid)
q.Add(lfs.NewDownloadable(p))
} else {
// Ensure progress matches
q.Skip(p.Size)
if !passFilter {
tracerx.Printf("Skipping %v [%v], include/exclude filters applied", p.Name, p.Oid)
} else {
tracerx.Printf("Skipping %v [%v], already exists", p.Name, p.Oid)
}
// If we already have it, or it won't be fetched
// report it to chan immediately to support pull/checkout
if out != nil {
out <- p
}
}
}
processQueue := time.Now()
q.Wait()
tracerx.PerformanceSince("process queue", processQueue)
ok := true
for _, err := range q.Errors() {
ok = false
ExitWithError(err)
}
return ok
}