Comments (4)
I can expose it like this:
// FSConfigWithSysFSMount extends FSConfig to expose the existing WithSysFSMount function.
// https://github.com/tetratelabs/wazero/issues/2076
type FSConfigWithSysFSMount interface {
WithSysFSMount(fs wazero_sys.FS, guestPath string) wazero.FSConfig
}
var writableFS wazero_sys.FS
fsConf.(FSConfigWithSysFSMount).WithSysFSMount(writableFS, "/")
But this is a runtime type assertion and can't be enforced at compile time, ideally FSConfigWithSysFSMount would be exposed by wazero
and type-asserted that fsConfig
conforms to that exported interface.
from wazero.
Admittedly, I think this may not be easy to find, but you should be able to write the following:
import (
"github.com/tetratelabs/wazero"
"github.com/tetratelabs/wazero/experimental/sysfs"
)
func main() {
var sys.FS = ...
config := wazero.NewFSConfig()
config.(sysfs.FSConfig).WithSysFSMount(myFs, guestPath)
...
}
e.g. see
wazero/experimental/sysfs/config_example_test.go
Lines 14 to 23 in 2f2b6a9
from wazero.
Could that just be added to the main FSConfig or perhaps add a NewFSConfig to sysfs which returns sysfs.FSConfig and have the type assertion in wazero? That way we can trust that the type assertion won't panic (covered by wazero tests)
from wazero.
Eventually, they will. They are not yet because this API has not been tested extensively by our users so far. So, please do play with it and let us know what other roadblocks you encounter :)
from wazero.
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