mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-12 10:00:46 +01:00
1e7b32490d
This allows for building GoToSocial with [SQLite transpiled to WASM](https://github.com/ncruces/go-sqlite3) and accessed through [Wazero](https://wazero.io/).
46 lines
844 B
Go
46 lines
844 B
Go
package sys
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import (
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"io"
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"io/fs"
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"os"
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)
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// UnwrapOSError returns an Errno or zero if the input is nil.
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func UnwrapOSError(err error) Errno {
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if err == nil {
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return 0
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}
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err = underlyingError(err)
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switch err {
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case nil, io.EOF:
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return 0 // EOF is not a Errno
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case fs.ErrInvalid:
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return EINVAL
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case fs.ErrPermission:
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return EPERM
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case fs.ErrExist:
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return EEXIST
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case fs.ErrNotExist:
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return ENOENT
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case fs.ErrClosed:
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return EBADF
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}
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return errorToErrno(err)
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}
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// underlyingError returns the underlying error if a well-known OS error type.
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//
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// This impl is basically the same as os.underlyingError in os/error.go
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func underlyingError(err error) error {
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switch err := err.(type) {
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case *os.PathError:
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return err.Err
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case *os.LinkError:
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return err.Err
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case *os.SyscallError:
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return err.Err
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}
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return err
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}
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