mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-20 17:31:07 +00:00
1e7b32490d
This allows for building GoToSocial with [SQLite transpiled to WASM](https://github.com/ncruces/go-sqlite3) and accessed through [Wazero](https://wazero.io/).
106 lines
3 KiB
Go
106 lines
3 KiB
Go
package sysfs
|
|
|
|
import (
|
|
"fmt"
|
|
"io/fs"
|
|
"path"
|
|
|
|
experimentalsys "github.com/tetratelabs/wazero/experimental/sys"
|
|
"github.com/tetratelabs/wazero/sys"
|
|
)
|
|
|
|
type AdaptFS struct {
|
|
FS fs.FS
|
|
}
|
|
|
|
// String implements fmt.Stringer
|
|
func (a *AdaptFS) String() string {
|
|
return fmt.Sprintf("%v", a.FS)
|
|
}
|
|
|
|
// OpenFile implements the same method as documented on sys.FS
|
|
func (a *AdaptFS) OpenFile(path string, flag experimentalsys.Oflag, perm fs.FileMode) (experimentalsys.File, experimentalsys.Errno) {
|
|
return OpenFSFile(a.FS, cleanPath(path), flag, perm)
|
|
}
|
|
|
|
// Lstat implements the same method as documented on sys.FS
|
|
func (a *AdaptFS) Lstat(path string) (sys.Stat_t, experimentalsys.Errno) {
|
|
// At this time, we make the assumption sys.FS instances do not support
|
|
// symbolic links, therefore Lstat is the same as Stat. This is obviously
|
|
// not true, but until FS.FS has a solid story for how to handle symlinks,
|
|
// we are better off not making a decision that would be difficult to
|
|
// revert later on.
|
|
//
|
|
// For further discussions on the topic, see:
|
|
// https://github.com/golang/go/issues/49580
|
|
return a.Stat(path)
|
|
}
|
|
|
|
// Stat implements the same method as documented on sys.FS
|
|
func (a *AdaptFS) Stat(path string) (sys.Stat_t, experimentalsys.Errno) {
|
|
f, errno := a.OpenFile(path, experimentalsys.O_RDONLY, 0)
|
|
if errno != 0 {
|
|
return sys.Stat_t{}, errno
|
|
}
|
|
defer f.Close()
|
|
return f.Stat()
|
|
}
|
|
|
|
// Readlink implements the same method as documented on sys.FS
|
|
func (a *AdaptFS) Readlink(string) (string, experimentalsys.Errno) {
|
|
return "", experimentalsys.ENOSYS
|
|
}
|
|
|
|
// Mkdir implements the same method as documented on sys.FS
|
|
func (a *AdaptFS) Mkdir(string, fs.FileMode) experimentalsys.Errno {
|
|
return experimentalsys.ENOSYS
|
|
}
|
|
|
|
// Chmod implements the same method as documented on sys.FS
|
|
func (a *AdaptFS) Chmod(string, fs.FileMode) experimentalsys.Errno {
|
|
return experimentalsys.ENOSYS
|
|
}
|
|
|
|
// Rename implements the same method as documented on sys.FS
|
|
func (a *AdaptFS) Rename(string, string) experimentalsys.Errno {
|
|
return experimentalsys.ENOSYS
|
|
}
|
|
|
|
// Rmdir implements the same method as documented on sys.FS
|
|
func (a *AdaptFS) Rmdir(string) experimentalsys.Errno {
|
|
return experimentalsys.ENOSYS
|
|
}
|
|
|
|
// Link implements the same method as documented on sys.FS
|
|
func (a *AdaptFS) Link(string, string) experimentalsys.Errno {
|
|
return experimentalsys.ENOSYS
|
|
}
|
|
|
|
// Symlink implements the same method as documented on sys.FS
|
|
func (a *AdaptFS) Symlink(string, string) experimentalsys.Errno {
|
|
return experimentalsys.ENOSYS
|
|
}
|
|
|
|
// Unlink implements the same method as documented on sys.FS
|
|
func (a *AdaptFS) Unlink(string) experimentalsys.Errno {
|
|
return experimentalsys.ENOSYS
|
|
}
|
|
|
|
// Utimens implements the same method as documented on sys.FS
|
|
func (a *AdaptFS) Utimens(string, int64, int64) experimentalsys.Errno {
|
|
return experimentalsys.ENOSYS
|
|
}
|
|
|
|
func cleanPath(name string) string {
|
|
if len(name) == 0 {
|
|
return name
|
|
}
|
|
// fs.ValidFile cannot be rooted (start with '/')
|
|
cleaned := name
|
|
if name[0] == '/' {
|
|
cleaned = name[1:]
|
|
}
|
|
cleaned = path.Clean(cleaned) // e.g. "sub/." -> "sub"
|
|
return cleaned
|
|
}
|