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system: remove tmpfiles
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This is no longer used.

Signed-off-by: Ophestra <cat@gensokyo.uk>
This commit is contained in:
Ophestra 2025-10-13 01:12:44 +09:00
parent bff2a1e748
commit 763ab27e09
Signed by: cat
SSH Key Fingerprint: SHA256:gQ67O0enBZ7UdZypgtspB2FDM1g3GVw8nX0XSdcFw8Q
3 changed files with 1 additions and 224 deletions
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2
system/system_test.go
View File

@ -149,7 +149,7 @@ func TestEqual(t *testing.T) {
{"op type mismatch",
New(t.Context(), message.NewMsg(nil), 150).
ChangeHosts("chronos").
CopyFile(new([]byte), m("/home/ophestra/xdg/config/pulse/cookie"), 0, 256),
Wayland(m("/proc/nonexistent/dst"), m("/proc/nonexistent/src"), "\x00", "\x00"),
New(t.Context(), message.NewMsg(nil), 150).
ChangeHosts("chronos").
Ensure(m("/run"), 0755),

81
system/tmpfiles.go
View File

@ -1,81 +0,0 @@
package system
import (
"bytes"
"errors"
"fmt"
"io"
"os"
"syscall"
"hakurei.app/container/check"
"hakurei.app/hst"
)
// CopyFile reads up to n bytes from src and writes the resulting byte slice to payloadP.
func (sys *I) CopyFile(payloadP *[]byte, src *check.Absolute, cap int, n int64) *I {
buf := new(bytes.Buffer)
buf.Grow(cap)
sys.ops = append(sys.ops, &tmpfileOp{payloadP, src.String(), n, buf})
return sys
}
// tmpfileOp implements [I.CopyFile].
type tmpfileOp struct {
payload *[]byte
src string
n int64
buf *bytes.Buffer
}
func (t *tmpfileOp) Type() hst.Enablement { return Process }
func (t *tmpfileOp) apply(sys *I) error {
if t.payload == nil {
// this is a misuse of the API; do not return a wrapped error
return errors.New("invalid payload")
}
sys.msg.Verbose("copying", t)
if b, err := sys.stat(t.src); err != nil {
return newOpError("tmpfile", err, false)
} else {
if b.IsDir() {
return newOpError("tmpfile", &os.PathError{Op: "stat", Path: t.src, Err: syscall.EISDIR}, false)
}
if s := b.Size(); s > t.n {
return newOpError("tmpfile", &os.PathError{Op: "stat", Path: t.src, Err: syscall.ENOMEM}, false)
}
}
var r io.ReadCloser
if f, err := sys.open(t.src); err != nil {
return newOpError("tmpfile", err, false)
} else {
r = f
}
if n, err := io.CopyN(t.buf, r, t.n); err != nil {
if !errors.Is(err, io.EOF) {
_ = r.Close()
return newOpError("tmpfile", err, false)
}
sys.msg.Verbosef("copied %d bytes from %q", n, t.src)
}
if err := r.Close(); err != nil {
return newOpError("tmpfile", err, false)
}
*t.payload = t.buf.Bytes()
return nil
}
func (t *tmpfileOp) revert(*I, *Criteria) error { t.buf.Reset(); return nil }
func (t *tmpfileOp) Is(o Op) bool {
target, ok := o.(*tmpfileOp)
return ok && t != nil && target != nil &&
t.src == target.src && t.n == target.n
}
func (t *tmpfileOp) Path() string { return t.src }
func (t *tmpfileOp) String() string { return fmt.Sprintf("up to %d bytes from %q", t.n, t.src) }

142
system/tmpfiles_test.go
View File

@ -1,142 +0,0 @@
package system
import (
"bytes"
"errors"
"os"
"strings"
"syscall"
"testing"
"hakurei.app/container/stub"
)
type errorReader struct{}
func (errorReader) Read([]byte) (int, error) { return 0, stub.UniqueError(0xdeadbeef) }
func TestTmpfileOp(t *testing.T) {
// 255 bytes
const paSample = "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
checkOpBehaviour(t, []opBehaviourTestCase{
{"payload", 0xdead, 0xff, &tmpfileOp{
nil, "/home/ophestra/xdg/config/pulse/cookie", 1 << 8,
func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }(),
}, nil, errors.New("invalid payload"), nil, nil},
{"stat", 0xdead, 0xff, &tmpfileOp{
new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8,
func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }(),
}, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"copying", &tmpfileOp{new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8, func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }()}}}, nil, nil),
call("stat", stub.ExpectArgs{"/home/ophestra/xdg/config/pulse/cookie"}, nil, stub.UniqueError(1)),
}, &OpError{Op: "tmpfile", Err: stub.UniqueError(1)}, nil, nil},
{"stat EISDIR", 0xdead, 0xff, &tmpfileOp{
new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8,
func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }(),
}, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"copying", &tmpfileOp{new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8, func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }()}}}, nil, nil),
call("stat", stub.ExpectArgs{"/home/ophestra/xdg/config/pulse/cookie"}, stubFi{1 << 8, true}, nil),
}, &OpError{Op: "tmpfile", Err: &os.PathError{Op: "stat", Path: "/home/ophestra/xdg/config/pulse/cookie", Err: syscall.EISDIR}}, nil, nil},
{"stat ENOMEM", 0xdead, 0xff, &tmpfileOp{
new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8,
func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }(),
}, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"copying", &tmpfileOp{new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8, func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }()}}}, nil, nil),
call("stat", stub.ExpectArgs{"/home/ophestra/xdg/config/pulse/cookie"}, stubFi{1<<8 + 1, false}, nil),
}, &OpError{Op: "tmpfile", Err: &os.PathError{Op: "stat", Path: "/home/ophestra/xdg/config/pulse/cookie", Err: syscall.ENOMEM}}, nil, nil},
{"open", 0xdead, 0xff, &tmpfileOp{
new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8,
func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }(),
}, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"copying", &tmpfileOp{new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8, func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }()}}}, nil, nil),
call("stat", stub.ExpectArgs{"/home/ophestra/xdg/config/pulse/cookie"}, stubFi{1 << 8, false}, nil),
call("open", stub.ExpectArgs{"/home/ophestra/xdg/config/pulse/cookie"}, nil, stub.UniqueError(0)),
}, &OpError{Op: "tmpfile", Err: stub.UniqueError(0)}, nil, nil},
{"reader", 0xdead, 0xff, &tmpfileOp{
new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8,
func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }(),
}, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"copying", &tmpfileOp{new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8, func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }()}}}, nil, nil),
call("stat", stub.ExpectArgs{"/home/ophestra/xdg/config/pulse/cookie"}, stubFi{1 << 8, false}, nil),
call("open", stub.ExpectArgs{"/home/ophestra/xdg/config/pulse/cookie"}, &readerOsFile{true, errorReader{}}, nil),
}, &OpError{Op: "tmpfile", Err: stub.UniqueError(0xdeadbeef)}, nil, nil},
{"closed", 0xdead, 0xff, &tmpfileOp{
new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8,
func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }(),
}, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"copying", &tmpfileOp{new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8, func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }()}}}, nil, nil),
call("stat", stub.ExpectArgs{"/home/ophestra/xdg/config/pulse/cookie"}, stubFi{1 << 8, false}, nil),
call("open", stub.ExpectArgs{"/home/ophestra/xdg/config/pulse/cookie"}, &readerOsFile{true, strings.NewReader(paSample + "=")}, nil),
}, &OpError{Op: "tmpfile", Err: os.ErrClosed}, nil, nil},
{"success full", 0xdead, 0xff, &tmpfileOp{
new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8,
func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }(),
}, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"copying", &tmpfileOp{new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8, func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }()}}}, nil, nil),
call("stat", stub.ExpectArgs{"/home/ophestra/xdg/config/pulse/cookie"}, stubFi{1 << 8, false}, nil),
call("open", stub.ExpectArgs{"/home/ophestra/xdg/config/pulse/cookie"}, &readerOsFile{false, strings.NewReader(paSample + "=")}, nil),
}, nil, nil, nil},
{"success", 0xdead, 0xff, &tmpfileOp{
new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8,
func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }(),
}, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"copying", &tmpfileOp{new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8, func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }()}}}, nil, nil),
call("stat", stub.ExpectArgs{"/home/ophestra/xdg/config/pulse/cookie"}, stubFi{1 << 8, false}, nil),
call("open", stub.ExpectArgs{"/home/ophestra/xdg/config/pulse/cookie"}, &readerOsFile{false, strings.NewReader(paSample)}, nil),
call("verbosef", stub.ExpectArgs{"copied %d bytes from %q", []any{int64(1<<8 - 1), "/home/ophestra/xdg/config/pulse/cookie"}}, nil, nil),
}, nil, nil, nil},
})
checkOpsBuilder(t, "CopyFile", []opsBuilderTestCase{
{"pulse", 0xcafebabe, func(_ *testing.T, sys *I) {
sys.CopyFile(new([]byte), m("/home/ophestra/xdg/config/pulse/cookie"), 1<<8, 1<<8)
}, []Op{&tmpfileOp{
new([]byte), "/home/ophestra/xdg/config/pulse/cookie", 1 << 8,
func() *bytes.Buffer { buf := new(bytes.Buffer); buf.Grow(1 << 8); return buf }(),
}}, stub.Expect{}},
})
checkOpIs(t, []opIsTestCase{
{"nil", (*tmpfileOp)(nil), (*tmpfileOp)(nil), false},
{"zero", new(tmpfileOp), new(tmpfileOp), true},
{"n differs", &tmpfileOp{
src: "/home/ophestra/xdg/config/pulse/cookie",
n: 1 << 7,
}, &tmpfileOp{
src: "/home/ophestra/xdg/config/pulse/cookie",
n: 1 << 8,
}, false},
{"src differs", &tmpfileOp{
src: "/home/ophestra/xdg/config/pulse",
n: 1 << 8,
}, &tmpfileOp{
src: "/home/ophestra/xdg/config/pulse/cookie",
n: 1 << 8,
}, false},
{"equals", &tmpfileOp{
src: "/home/ophestra/xdg/config/pulse/cookie",
n: 1 << 8,
}, &tmpfileOp{
src: "/home/ophestra/xdg/config/pulse/cookie",
n: 1 << 8,
}, true},
})
checkOpMeta(t, []opMetaTestCase{
{"pulse", &tmpfileOp{nil, "/home/ophestra/xdg/config/pulse/cookie", 1 << 8, nil},
Process, "/home/ophestra/xdg/config/pulse/cookie",
`up to 256 bytes from "/home/ophestra/xdg/config/pulse/cookie"`},
})
}