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61 lines
1.6 KiB
Go
61 lines
1.6 KiB
Go
package fsutil
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import (
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"os"
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"path/filepath"
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"runtime"
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"github.com/pkg/errors"
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"github.com/tonistiigi/fsutil/types"
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)
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// constructs a Stat object. path is where the path can be found right
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// now, relpath is the desired path to be recorded in the stat (so
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// relative to whatever base dir is relevant). fi is the os.Stat
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// info. inodemap is used to calculate hardlinks over a series of
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// mkstat calls and maps inode to the canonical (aka "first") path for
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// a set of hardlinks to that inode.
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func mkstat(path, relpath string, fi os.FileInfo, inodemap map[uint64]string) (*types.Stat, error) {
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relpath = filepath.ToSlash(relpath)
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stat := &types.Stat{
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Path: relpath,
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Mode: uint32(fi.Mode()),
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ModTime: fi.ModTime().UnixNano(),
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}
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setUnixOpt(fi, stat, relpath, inodemap)
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if !fi.IsDir() {
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stat.Size_ = fi.Size()
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if fi.Mode()&os.ModeSymlink != 0 {
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link, err := os.Readlink(path)
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if err != nil {
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return nil, errors.Wrapf(err, "failed to readlink %s", path)
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}
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stat.Linkname = link
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}
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}
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if err := loadXattr(path, stat); err != nil {
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return nil, errors.Wrapf(err, "failed to xattr %s", relpath)
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}
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if runtime.GOOS == "windows" {
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permPart := stat.Mode & uint32(os.ModePerm)
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noPermPart := stat.Mode &^ uint32(os.ModePerm)
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// Add the x bit: make everything +x from windows
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permPart |= 0111
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permPart &= 0755
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stat.Mode = noPermPart | permPart
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}
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return stat, nil
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}
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func Stat(path string) (*types.Stat, error) {
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fi, err := os.Lstat(path)
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if err != nil {
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return nil, errors.Wrap(err, "os stat")
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}
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return mkstat(path, filepath.Base(path), fi, nil)
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}
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