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lib/fs: Handle deduplicated files on NTFS (fixes #1845)

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These files always have the symlink bit set, because they are reparse
points. Nonetheless they are not symlinks, and Lstat reports a size for
them. We use this fact to disambiguate, and hope fervently that nothing
else matches this description so it comes back to bite us...

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4622
This commit is contained in:
Jakob Borg
2017-12-29 21:23:06 +00:00
committed by Audrius Butkevicius
parent 9988044bbe
commit a9f0659f2f
4 changed files with 41 additions and 7 deletions
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12
lib/fs/basicfs.go
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@@ -322,14 +322,12 @@ type fsFileInfo struct {
os.FileInfo
}
func (e fsFileInfo) Mode() FileMode {
return FileMode(e.FileInfo.Mode())
func (e fsFileInfo) IsSymlink() bool {
// Must use fsFileInfo.Mode() because it may apply magic.
return e.Mode()&ModeSymlink != 0
}
func (e fsFileInfo) IsRegular() bool {
return e.FileInfo.Mode().IsRegular()
}
func (e fsFileInfo) IsSymlink() bool {
return e.FileInfo.Mode()&os.ModeSymlink == os.ModeSymlink
// Must use fsFileInfo.Mode() because it may apply magic.
return e.Mode()&ModeType == 0
}