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Fix duplicate directories entries on metadata change

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Currently directory changes are not added to the list of
included directories, allowing those directories to receive
duplicate entries where there is both a metadata change to the
directory and a change to a file under that directory.

Signed-off-by: Derek McGowan <derek@mcgstyle.net>
This commit is contained in:
Derek McGowan
2018-01-24 14:26:14 -08:00
parent 8d32d9edfc
commit dfadd8ce75
2 changed files with 53 additions and 1 deletions
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3
archive/tar.go
View File

@@ -583,6 +583,9 @@ func (cw *changeWriter) includeParents(hdr *tar.Header) error {
}
}
}
if hdr.Typeflag == tar.TypeDir {
cw.addedDirs[name] = struct{}{}
}
return nil
}

51
archive/tar_test.go
View File

@@ -867,7 +867,7 @@ func TestDiffTar(t *testing.T) {
fileEntry("d2/l1", []byte("link me"), 0644),
// d1/f1 and its parent is included after the new link,
// before the new link was included, these files would
// not habe needed
// not have been needed
dirEntry("d1/", 0755),
linkEntry("d1/f1", "d2/l1"),
dirEntry("d3/", 0755),
@@ -898,6 +898,55 @@ func TestDiffTar(t *testing.T) {
fstest.Remove("/d6/l2"),
),
},
{
name: "UpdateDirectoryPermission",
validators: []tarEntryValidator{
dirEntry("d1/", 0777),
dirEntry("d1/d/", 0700),
dirEntry("d2/", 0770),
fileEntry("d2/f", []byte("ok"), 0644),
},
a: fstest.Apply(
fstest.CreateDir("/d1/", 0755),
fstest.CreateDir("/d2/", 0770),
),
b: fstest.Apply(
fstest.Chmod("/d1", 0777),
fstest.CreateDir("/d1/d", 0700),
fstest.CreateFile("/d2/f", []byte("ok"), 0644),
),
},
{
name: "HardlinkUpdatedParent",
validators: []tarEntryValidator{
dirEntry("d1/", 0777),
dirEntry("d2/", 0755),
fileEntry("d2/l1", []byte("link me"), 0644),
// d1/f1 is included after the new link, its
// parent has already changed and therefore
// only the linked file is included
linkEntry("d1/f1", "d2/l1"),
dirEntry("d4/", 0777),
fileEntry("d4/l1", []byte("link me"), 0644),
dirEntry("d3/", 0755),
linkEntry("d3/f1", "d4/l1"),
},
a: fstest.Apply(
fstest.CreateDir("/d1/", 0755),
fstest.CreateFile("/d1/f1", []byte("link me"), 0644),
fstest.CreateDir("/d2/", 0755),
fstest.CreateFile("/d2/f1", []byte("link me"), 0644),
fstest.CreateDir("/d3/", 0755),
fstest.CreateFile("/d3/f1", []byte("link me"), 0644),
fstest.CreateDir("/d4/", 0755),
),
b: fstest.Apply(
fstest.Chmod("/d1", 0777),
fstest.Link("/d1/f1", "/d2/l1"),
fstest.Chmod("/d4", 0777),
fstest.Link("/d3/f1", "/d4/l1"),
),
},
}
for _, at := range tests {