77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package fstest
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import (
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"io/ioutil"
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"os"
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"github.com/containerd/continuity"
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"github.com/pkg/errors"
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)
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// CheckDirectoryEqual compares two directory paths to make sure that
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// the content of the directories is the same.
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func CheckDirectoryEqual(d1, d2 string) error {
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c1, err := continuity.NewContext(d1)
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if err != nil {
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return errors.Wrap(err, "failed to build context")
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}
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c2, err := continuity.NewContext(d2)
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if err != nil {
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return errors.Wrap(err, "failed to build context")
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}
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m1, err := continuity.BuildManifest(c1)
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if err != nil {
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return errors.Wrap(err, "failed to build manifest")
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}
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m2, err := continuity.BuildManifest(c2)
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if err != nil {
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return errors.Wrap(err, "failed to build manifest")
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}
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diff := diffResourceList(m1.Resources, m2.Resources)
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if diff.HasDiff() {
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if len(diff.Deletions) != 0 {
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return errors.Errorf("directory diff between %s and %s\n%s", d1, d2, diff.String())
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}
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// TODO: Also skip Recycle Bin contents in Windows layers which is used to store deleted files in some cases
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for _, add := range diff.Additions {
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if ok, _ := metadataFiles[add.Path()]; !ok {
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return errors.Errorf("directory diff between %s and %s\n%s", d1, d2, diff.String())
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}
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}
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}
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return nil
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}
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// CheckDirectoryEqualWithApplier compares directory against applier
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func CheckDirectoryEqualWithApplier(root string, a Applier) error {
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applied, err := ioutil.TempDir("", "fstest")
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if err != nil {
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return err
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}
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defer os.RemoveAll(applied)
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if err := a.Apply(applied); err != nil {
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return err
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}
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return CheckDirectoryEqual(applied, root)
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}
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