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restore: add dry-run support

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This commit is contained in:
Michael Eischer
2024-05-31 20:57:28 +02:00
parent c47bf33884
commit 83351f42e3
4 changed files with 82 additions and 19 deletions
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30
internal/restorer/restorer_test.go
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@@ -15,6 +15,7 @@ import (
"time"
"github.com/restic/restic/internal/archiver"
"github.com/restic/restic/internal/errors"
"github.com/restic/restic/internal/fs"
"github.com/restic/restic/internal/repository"
"github.com/restic/restic/internal/restic"
@@ -1166,3 +1167,32 @@ func TestRestoreIfChanged(t *testing.T) {
}
}
}
func TestRestoreDryRun(t *testing.T) {
snapshot := Snapshot{
Nodes: map[string]Node{
"foo": File{Data: "content: foo\n", Links: 2, Inode: 42},
"foo2": File{Data: "content: foo\n", Links: 2, Inode: 42},
"dirtest": Dir{
Nodes: map[string]Node{
"file": File{Data: "content: file\n"},
},
},
"link": Symlink{Target: "foo"},
},
}
repo := repository.TestRepository(t)
tempdir := filepath.Join(rtest.TempDir(t), "target")
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
sn, id := saveSnapshot(t, repo, snapshot, noopGetGenericAttributes)
t.Logf("snapshot saved as %v", id.Str())
res := NewRestorer(repo, sn, Options{DryRun: true})
rtest.OK(t, res.RestoreTo(ctx, tempdir))
_, err := os.Stat(tempdir)
rtest.Assert(t, errors.Is(err, os.ErrNotExist), "expected no file to be created, got %v", err)
}