system: move out of internal

Signed-off-by: Ophestra <cat@gensokyo.uk>

1 files changed, 0 insertions, 76 deletions

diff --git a/internal/system/tmpfiles.go b/internal/system/tmpfiles.go
deleted file mode 100644
index 636943bc..00000000
--- a/internal/system/tmpfiles.go
+++ /dev/null
@@ -1,76 +0,0 @@
-package system
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"io"
-	"os"
-	"syscall"
-)
-
-// CopyFile registers an Op that copies from src.
-// A buffer is initialised with size cap and the Op faults if bytes read exceed n.
-func (sys *I) CopyFile(payload *[]byte, src string, cap int, n int64) *I {
-	buf := new(bytes.Buffer)
-	buf.Grow(cap)
-
-	sys.lock.Lock()
-	sys.ops = append(sys.ops, &Tmpfile{payload, src, n, buf})
-	sys.lock.Unlock()
-
-	return sys
-}
-
-type Tmpfile struct {
-	payload *[]byte
-	src     string
-
-	n   int64
-	buf *bytes.Buffer
-}
-
-func (t *Tmpfile) Type() Enablement { return Process }
-func (t *Tmpfile) apply(sys *I) error {
-	sys.println("copying", t)
-
-	if t.payload == nil {
-		// this is a misuse of the API; do not return an error message
-		return errors.New("invalid payload")
-	}
-
-	if b, err := os.Stat(t.src); err != nil {
-		return sys.wrapErrSuffix(err,
-			fmt.Sprintf("cannot stat %q:", t.src))
-	} else {
-		if b.IsDir() {
-			return sys.wrapErrSuffix(syscall.EISDIR,
-				fmt.Sprintf("%q is a directory", t.src))
-		}
-		if s := b.Size(); s > t.n {
-			return sys.wrapErrSuffix(syscall.ENOMEM,
-				fmt.Sprintf("file %q is too long: %d > %d",
-					t.src, s, t.n))
-		}
-	}
-
-	if f, err := os.Open(t.src); err != nil {
-		return sys.wrapErrSuffix(err,
-			fmt.Sprintf("cannot open %q:", t.src))
-	} else if _, err = io.CopyN(t.buf, f, t.n); err != nil {
-		return sys.wrapErrSuffix(err,
-			fmt.Sprintf("cannot read from %q:", t.src))
-	}
-
-	*t.payload = t.buf.Bytes()
-	return nil
-}
-func (t *Tmpfile) revert(*I, *Criteria) error { t.buf.Reset(); return nil }
-
-func (t *Tmpfile) Is(o Op) bool {
-	t0, ok := o.(*Tmpfile)
-	return ok && t0 != nil &&
-		t.src == t0.src && t.n == t0.n
-}
-func (t *Tmpfile) Path() string   { return t.src }
-func (t *Tmpfile) String() string { return fmt.Sprintf("up to %d bytes from %q", t.n, t.src) }