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ls: correctly handle setuid/setgit/sticky bit in ncdu output
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a2fe337610
commit
509b339d54
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@ -171,7 +171,7 @@ func (p *ncduLsPrinter) Snapshot(sn *restic.Snapshot) {
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fmt.Fprintf(p.out, "[%d, %d, %s", NcduMajorVer, NcduMinorVer, string(snapshotBytes))
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}
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func (p *ncduLsPrinter) Node(path string, node *restic.Node) {
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func lsNcduNode(path string, node *restic.Node) ([]byte, error) {
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type NcduNode struct {
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Name string `json:"name"`
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Asize uint64 `json:"asize"`
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@ -196,11 +196,25 @@ func (p *ncduLsPrinter) Node(path string, node *restic.Node) {
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NotReg: node.Type != "dir" && node.Type != "file",
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Uid: node.UID,
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Gid: node.GID,
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Mode: uint16(node.Mode),
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Mode: uint16(node.Mode & os.ModePerm),
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Mtime: node.ModTime.Unix(),
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}
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// bits according to inode(7) manpage
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if node.Mode&os.ModeSetuid != 0 {
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outNode.Mode |= 0o4000
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}
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if node.Mode&os.ModeSetgid != 0 {
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outNode.Mode |= 0o2000
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}
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if node.Mode&os.ModeSticky != 0 {
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outNode.Mode |= 0o1000
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}
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outJson, err := json.Marshal(outNode)
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return json.Marshal(outNode)
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}
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func (p *ncduLsPrinter) Node(path string, node *restic.Node) {
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outJson, err := lsNcduNode(path, node)
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if err != nil {
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Warnf("JSON encode failed: %v\n", err)
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}
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@ -11,78 +11,94 @@ import (
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rtest "github.com/restic/restic/internal/test"
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)
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type lsTestNode struct {
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path string
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restic.Node
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}
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var lsTestNodes []lsTestNode = []lsTestNode{
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// Mode is omitted when zero.
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// Permissions, by convention is "-" per mode bit
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{
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path: "/bar/baz",
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Node: restic.Node{
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Name: "baz",
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Type: "file",
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Size: 12345,
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UID: 10000000,
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GID: 20000000,
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User: "nobody",
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Group: "nobodies",
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Links: 1,
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},
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},
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// Even empty files get an explicit size.
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{
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path: "/foo/empty",
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Node: restic.Node{
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Name: "empty",
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Type: "file",
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Size: 0,
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UID: 1001,
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GID: 1001,
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User: "not printed",
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Group: "not printed",
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Links: 0xF00,
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},
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},
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// Non-regular files do not get a size.
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// Mode is printed in decimal, including the type bits.
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{
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path: "/foo/link",
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Node: restic.Node{
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Name: "link",
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Type: "symlink",
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Mode: os.ModeSymlink | 0777,
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LinkTarget: "not printed",
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},
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},
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{
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path: "/some/directory",
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Node: restic.Node{
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Name: "directory",
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Type: "dir",
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Mode: os.ModeDir | 0755,
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ModTime: time.Date(2020, 1, 2, 3, 4, 5, 0, time.UTC),
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AccessTime: time.Date(2021, 2, 3, 4, 5, 6, 7, time.UTC),
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ChangeTime: time.Date(2022, 3, 4, 5, 6, 7, 8, time.UTC),
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},
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},
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// Test encoding of setuid/setgid/sticky bit
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{
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path: "/some/sticky",
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Node: restic.Node{
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Name: "sticky",
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Type: "dir",
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Mode: os.ModeDir | 0755 | os.ModeSetuid | os.ModeSetgid | os.ModeSticky,
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},
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},
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}
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func TestLsNodeJSON(t *testing.T) {
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for _, c := range []struct {
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path string
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restic.Node
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expect string
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}{
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// Mode is omitted when zero.
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// Permissions, by convention is "-" per mode bit
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{
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path: "/bar/baz",
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Node: restic.Node{
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Name: "baz",
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Type: "file",
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Size: 12345,
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UID: 10000000,
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GID: 20000000,
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User: "nobody",
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Group: "nobodies",
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Links: 1,
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},
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expect: `{"name":"baz","type":"file","path":"/bar/baz","uid":10000000,"gid":20000000,"size":12345,"permissions":"----------","mtime":"0001-01-01T00:00:00Z","atime":"0001-01-01T00:00:00Z","ctime":"0001-01-01T00:00:00Z","struct_type":"node"}`,
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},
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// Even empty files get an explicit size.
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{
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path: "/foo/empty",
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Node: restic.Node{
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Name: "empty",
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Type: "file",
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Size: 0,
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UID: 1001,
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GID: 1001,
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User: "not printed",
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Group: "not printed",
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Links: 0xF00,
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},
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expect: `{"name":"empty","type":"file","path":"/foo/empty","uid":1001,"gid":1001,"size":0,"permissions":"----------","mtime":"0001-01-01T00:00:00Z","atime":"0001-01-01T00:00:00Z","ctime":"0001-01-01T00:00:00Z","struct_type":"node"}`,
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},
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// Non-regular files do not get a size.
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// Mode is printed in decimal, including the type bits.
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{
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path: "/foo/link",
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Node: restic.Node{
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Name: "link",
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Type: "symlink",
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Mode: os.ModeSymlink | 0777,
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LinkTarget: "not printed",
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},
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expect: `{"name":"link","type":"symlink","path":"/foo/link","uid":0,"gid":0,"mode":134218239,"permissions":"Lrwxrwxrwx","mtime":"0001-01-01T00:00:00Z","atime":"0001-01-01T00:00:00Z","ctime":"0001-01-01T00:00:00Z","struct_type":"node"}`,
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},
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{
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path: "/some/directory",
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Node: restic.Node{
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Name: "directory",
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Type: "dir",
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Mode: os.ModeDir | 0755,
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ModTime: time.Date(2020, 1, 2, 3, 4, 5, 0, time.UTC),
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AccessTime: time.Date(2021, 2, 3, 4, 5, 6, 7, time.UTC),
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ChangeTime: time.Date(2022, 3, 4, 5, 6, 7, 8, time.UTC),
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},
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expect: `{"name":"directory","type":"dir","path":"/some/directory","uid":0,"gid":0,"mode":2147484141,"permissions":"drwxr-xr-x","mtime":"2020-01-02T03:04:05Z","atime":"2021-02-03T04:05:06.000000007Z","ctime":"2022-03-04T05:06:07.000000008Z","struct_type":"node"}`,
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},
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for i, expect := range []string{
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`{"name":"baz","type":"file","path":"/bar/baz","uid":10000000,"gid":20000000,"size":12345,"permissions":"----------","mtime":"0001-01-01T00:00:00Z","atime":"0001-01-01T00:00:00Z","ctime":"0001-01-01T00:00:00Z","struct_type":"node"}`,
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`{"name":"empty","type":"file","path":"/foo/empty","uid":1001,"gid":1001,"size":0,"permissions":"----------","mtime":"0001-01-01T00:00:00Z","atime":"0001-01-01T00:00:00Z","ctime":"0001-01-01T00:00:00Z","struct_type":"node"}`,
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`{"name":"link","type":"symlink","path":"/foo/link","uid":0,"gid":0,"mode":134218239,"permissions":"Lrwxrwxrwx","mtime":"0001-01-01T00:00:00Z","atime":"0001-01-01T00:00:00Z","ctime":"0001-01-01T00:00:00Z","struct_type":"node"}`,
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`{"name":"directory","type":"dir","path":"/some/directory","uid":0,"gid":0,"mode":2147484141,"permissions":"drwxr-xr-x","mtime":"2020-01-02T03:04:05Z","atime":"2021-02-03T04:05:06.000000007Z","ctime":"2022-03-04T05:06:07.000000008Z","struct_type":"node"}`,
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`{"name":"sticky","type":"dir","path":"/some/sticky","uid":0,"gid":0,"mode":2161115629,"permissions":"dugtrwxr-xr-x","mtime":"0001-01-01T00:00:00Z","atime":"0001-01-01T00:00:00Z","ctime":"0001-01-01T00:00:00Z","struct_type":"node"}`,
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} {
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c := lsTestNodes[i]
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buf := new(bytes.Buffer)
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enc := json.NewEncoder(buf)
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err := lsNodeJSON(enc, c.path, &c.Node)
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rtest.OK(t, err)
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rtest.Equals(t, c.expect+"\n", buf.String())
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rtest.Equals(t, expect+"\n", buf.String())
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// Sanity check: output must be valid JSON.
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var v interface{}
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@ -90,3 +106,23 @@ func TestLsNodeJSON(t *testing.T) {
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rtest.OK(t, err)
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}
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}
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func TestLsNcduNode(t *testing.T) {
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for i, expect := range []string{
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`{"name":"baz","asize":12345,"dsize":12345,"dev":0,"ino":0,"nlink":1,"notreg":false,"uid":10000000,"gid":20000000,"mode":0,"mtime":-62135596800}`,
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`{"name":"empty","asize":0,"dsize":0,"dev":0,"ino":0,"nlink":3840,"notreg":false,"uid":1001,"gid":1001,"mode":0,"mtime":-62135596800}`,
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`{"name":"link","asize":0,"dsize":0,"dev":0,"ino":0,"nlink":0,"notreg":true,"uid":0,"gid":0,"mode":511,"mtime":-62135596800}`,
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`{"name":"directory","asize":0,"dsize":0,"dev":0,"ino":0,"nlink":0,"notreg":false,"uid":0,"gid":0,"mode":493,"mtime":1577934245}`,
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`{"name":"sticky","asize":0,"dsize":0,"dev":0,"ino":0,"nlink":0,"notreg":false,"uid":0,"gid":0,"mode":4077,"mtime":-62135596800}`,
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} {
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c := lsTestNodes[i]
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out, err := lsNcduNode(c.path, &c.Node)
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rtest.OK(t, err)
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rtest.Equals(t, expect, string(out))
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// Sanity check: output must be valid JSON.
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var v interface{}
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err = json.Unmarshal(out, &v)
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rtest.OK(t, err)
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}
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}
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