diff options
Diffstat (limited to 'vendor/github.com/containerd/stargz-snapshotter/estargz/estargz.go')
| -rw-r--r-- | vendor/github.com/containerd/stargz-snapshotter/estargz/estargz.go | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/vendor/github.com/containerd/stargz-snapshotter/estargz/estargz.go b/vendor/github.com/containerd/stargz-snapshotter/estargz/estargz.go index 3ef029116..e56319545 100644 --- a/vendor/github.com/containerd/stargz-snapshotter/estargz/estargz.go +++ b/vendor/github.com/containerd/stargz-snapshotter/estargz/estargz.go @@ -118,7 +118,7 @@ func Open(sr *io.SectionReader, opt ...OpenOption) (*Reader, error) { } } - gzipCompressors := []Decompressor{new(GzipDecompressor), new(legacyGzipDecompressor)} + gzipCompressors := []Decompressor{new(GzipDecompressor), new(LegacyGzipDecompressor)} decompressors := append(gzipCompressors, opts.decompressors...) // Determine the size to fetch. Try to fetch as many bytes as possible. @@ -184,7 +184,7 @@ func OpenFooter(sr *io.SectionReader) (tocOffset int64, footerSize int64, rErr e return 0, 0, fmt.Errorf("error reading footer: %v", err) } var allErr []error - for _, d := range []Decompressor{new(GzipDecompressor), new(legacyGzipDecompressor)} { + for _, d := range []Decompressor{new(GzipDecompressor), new(LegacyGzipDecompressor)} { fSize := d.FooterSize() fOffset := positive(int64(len(footer)) - fSize) _, tocOffset, _, err := d.ParseFooter(footer[fOffset:]) @@ -279,12 +279,12 @@ func (r *Reader) initFields() error { pdir := r.getOrCreateDir(pdirName) ent.NumLink++ // at least one name(ent.Name) references this entry. if ent.Type == "hardlink" { - if org, ok := r.m[cleanEntryName(ent.LinkName)]; ok { - org.NumLink++ // original entry is referenced by this ent.Name. - ent = org - } else { - return fmt.Errorf("%q is a hardlink but the linkname %q isn't found", ent.Name, ent.LinkName) + org, err := r.getSource(ent) + if err != nil { + return err } + org.NumLink++ // original entry is referenced by this ent.Name. + ent = org } pdir.addChild(path.Base(name), ent) } @@ -303,6 +303,20 @@ func (r *Reader) initFields() error { return nil } +func (r *Reader) getSource(ent *TOCEntry) (_ *TOCEntry, err error) { + if ent.Type == "hardlink" { + org, ok := r.m[cleanEntryName(ent.LinkName)] + if !ok { + return nil, fmt.Errorf("%q is a hardlink but the linkname %q isn't found", ent.Name, ent.LinkName) + } + ent, err = r.getSource(org) + if err != nil { + return nil, err + } + } + return ent, nil +} + func parentDir(p string) string { dir, _ := path.Split(p) return strings.TrimSuffix(dir, "/") @@ -464,7 +478,11 @@ func (r *Reader) Lookup(path string) (e *TOCEntry, ok bool) { } e, ok = r.m[path] if ok && e.Type == "hardlink" { - e, ok = r.m[e.LinkName] + var err error + e, err = r.getSource(e) + if err != nil { + return nil, false + } } return } |