hst/fs: valid method on underlying interface
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Signed-off-by: Ophestra <cat@gensokyo.uk>
This commit is contained in:
Ophestra 2025-08-14 21:36:22 +09:00
parent c989e7785a
commit 0e543a58b3
Signed by: cat
SSH Key Fingerprint: SHA256:gQ67O0enBZ7UdZypgtspB2FDM1g3GVw8nX0XSdcFw8Q
6 changed files with 38 additions and 22 deletions

View File

@ -13,6 +13,8 @@ import (
type FilesystemConfig interface {
// Type returns the type of this mount point.
Type() string
// Valid returns whether the configuration is valid.
Valid() bool
// Target returns the pathname of the mount point in the container.
Target() *container.Absolute
// Host returns a slice of all host paths used by this mount point.
@ -60,7 +62,9 @@ type FilesystemConfigJSON struct {
}
// Valid returns whether the [FilesystemConfigJSON] is valid.
func (f *FilesystemConfigJSON) Valid() bool { return f != nil && f.FilesystemConfig != nil }
func (f *FilesystemConfigJSON) Valid() bool {
return f != nil && f.FilesystemConfig != nil && f.FilesystemConfig.Valid()
}
func (f *FilesystemConfigJSON) MarshalJSON() ([]byte, error) {
if f == nil || f.FilesystemConfig == nil {

View File

@ -144,7 +144,7 @@ func TestFilesystemConfigJSON(t *testing.T) {
t.Errorf("Valid: %v, want false", got)
}
if got := (&hst.FilesystemConfigJSON{FilesystemConfig: new(hst.FSBind)}).Valid(); !got {
if got := (&hst.FilesystemConfigJSON{FilesystemConfig: &hst.FSBind{Src: m("/etc")}}).Valid(); !got {
t.Errorf("Valid: %v, want true", got)
}
})
@ -192,6 +192,7 @@ type stubFS struct {
}
func (s stubFS) Type() string { return s.typeName }
func (s stubFS) Valid() bool { return false }
func (s stubFS) Target() *container.Absolute { panic("unreachable") }
func (s stubFS) Host() []*container.Absolute { panic("unreachable") }
func (s stubFS) Apply(*container.Ops) { panic("unreachable") }
@ -205,6 +206,7 @@ type sCheck struct {
type fsTestCase struct {
name string
fs hst.FilesystemConfig
valid bool
ops container.Ops
target *container.Absolute
host []*container.Absolute
@ -214,9 +216,17 @@ type fsTestCase struct {
func checkFs(t *testing.T, fstype string, testCases []fsTestCase) {
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
if got := tc.fs.Type(); got != fstype {
t.Errorf("Type: %q, want %q", got, fstype)
}
t.Run("type", func(t *testing.T) {
if got := tc.fs.Type(); got != fstype {
t.Errorf("Type: %q, want %q", got, fstype)
}
})
t.Run("valid", func(t *testing.T) {
if got := tc.fs.Valid(); got != tc.valid {
t.Errorf("Valid: %v, want %v", got, tc.valid)
}
})
t.Run("ops", func(t *testing.T) {
ops := new(container.Ops)

View File

@ -27,9 +27,10 @@ type FSBind struct {
}
func (b *FSBind) Type() string { return FilesystemBind }
func (b *FSBind) Valid() bool { return b != nil && b.Src != nil }
func (b *FSBind) Target() *container.Absolute {
if b == nil || b.Src == nil {
if !b.Valid() {
return nil
}
if b.Dst == nil {
@ -39,14 +40,14 @@ func (b *FSBind) Target() *container.Absolute {
}
func (b *FSBind) Host() []*container.Absolute {
if b == nil || b.Src == nil {
if !b.Valid() {
return nil
}
return []*container.Absolute{b.Src}
}
func (b *FSBind) Apply(ops *container.Ops) {
if b == nil || b.Src == nil {
if !b.Valid() {
return
}
@ -69,7 +70,7 @@ func (b *FSBind) Apply(ops *container.Ops) {
func (b *FSBind) String() string {
g := 4
if b == nil || b.Src == nil {
if !b.Valid() {
return "<invalid>"
}

View File

@ -9,14 +9,14 @@ import (
func TestFSBind(t *testing.T) {
checkFs(t, "bind", []fsTestCase{
{"nil", (*hst.FSBind)(nil), nil, nil, nil, "<invalid>"},
{"nil", (*hst.FSBind)(nil), false, nil, nil, nil, "<invalid>"},
{"full", &hst.FSBind{
Dst: m("/dev"),
Src: m("/mnt/dev"),
Optional: true,
Device: true,
}, container.Ops{&container.BindMountOp{
}, true, container.Ops{&container.BindMountOp{
Source: m("/mnt/dev"),
Target: m("/dev"),
Flags: container.BindWritable | container.BindDevice | container.BindOptional,
@ -28,7 +28,7 @@ func TestFSBind(t *testing.T) {
Src: m("/mnt/dev"),
Write: true,
Device: true,
}, container.Ops{&container.BindMountOp{
}, true, container.Ops{&container.BindMountOp{
Source: m("/mnt/dev"),
Target: m("/dev"),
Flags: container.BindWritable | container.BindDevice,
@ -39,7 +39,7 @@ func TestFSBind(t *testing.T) {
Dst: m("/tmp"),
Src: m("/mnt/tmp"),
Write: true,
}, container.Ops{&container.BindMountOp{
}, true, container.Ops{&container.BindMountOp{
Source: m("/mnt/tmp"),
Target: m("/tmp"),
Flags: container.BindWritable,
@ -49,7 +49,7 @@ func TestFSBind(t *testing.T) {
{"full no flags", &hst.FSBind{
Dst: m("/etc"),
Src: m("/mnt/etc"),
}, container.Ops{&container.BindMountOp{
}, true, container.Ops{&container.BindMountOp{
Source: m("/mnt/etc"),
Target: m("/etc"),
}}, m("/etc"), ms("/mnt/etc"),
@ -57,7 +57,7 @@ func TestFSBind(t *testing.T) {
{"nil dst", &hst.FSBind{
Src: m("/"),
}, container.Ops{&container.BindMountOp{
}, true, container.Ops{&container.BindMountOp{
Source: m("/"),
Target: m("/"),
}}, m("/"), ms("/"),

View File

@ -26,9 +26,10 @@ type FSEphemeral struct {
}
func (e *FSEphemeral) Type() string { return FilesystemEphemeral }
func (e *FSEphemeral) Valid() bool { return e != nil && e.Dst != nil }
func (e *FSEphemeral) Target() *container.Absolute {
if e == nil {
if !e.Valid() {
return nil
}
return e.Dst
@ -39,7 +40,7 @@ func (e *FSEphemeral) Host() []*container.Absolute { return nil }
const fsEphemeralDefaultPerm = os.FileMode(0755)
func (e *FSEphemeral) Apply(ops *container.Ops) {
if e == nil || e.Dst == nil {
if !e.Valid() {
return
}
@ -61,7 +62,7 @@ func (e *FSEphemeral) Apply(ops *container.Ops) {
}
func (e *FSEphemeral) String() string {
if e == nil || e.Dst == nil {
if !e.Valid() {
return "<invalid>"
}

View File

@ -10,14 +10,14 @@ import (
func TestFSEphemeral(t *testing.T) {
checkFs(t, "ephemeral", []fsTestCase{
{"nil", (*hst.FSEphemeral)(nil), nil, nil, nil, "<invalid>"},
{"nil", (*hst.FSEphemeral)(nil), false, nil, nil, nil, "<invalid>"},
{"full", &hst.FSEphemeral{
Dst: m("/run/user/65534"),
Write: true,
Size: 1 << 10,
Perm: 0700,
}, container.Ops{&container.MountTmpfsOp{
}, true, container.Ops{&container.MountTmpfsOp{
FSName: "ephemeral",
Path: m("/run/user/65534"),
Flags: syscall.MS_NOSUID | syscall.MS_NODEV,
@ -26,7 +26,7 @@ func TestFSEphemeral(t *testing.T) {
}}, m("/run/user/65534"), nil,
"w+ephemeral(-rwx------):/run/user/65534"},
{"cover ro", &hst.FSEphemeral{Dst: m("/run/nscd")},
{"cover ro", &hst.FSEphemeral{Dst: m("/run/nscd")}, true,
container.Ops{&container.MountTmpfsOp{
FSName: "readonly",
Path: m("/run/nscd"),
@ -39,7 +39,7 @@ func TestFSEphemeral(t *testing.T) {
Dst: hst.AbsTmp,
Write: true,
Size: -1,
}, container.Ops{&container.MountTmpfsOp{
}, true, container.Ops{&container.MountTmpfsOp{
FSName: "ephemeral",
Path: hst.AbsTmp,
Flags: syscall.MS_NOSUID | syscall.MS_NODEV,