package entity
import (
"fmt"
"strings"
)
// ErrNotFound is to be returned when an entity, item, element is
// not found.
type ErrNotFound struct {
typename string
}
func NewErrNotFound(typename string) *ErrNotFound {
return &ErrNotFound{typename: typename}
}
func (e ErrNotFound) Error() string {
return fmt.Sprintf("%s doesn't exist", e.typename)
}
func IsErrNotFound(err error) bool {
_, ok := err.(*ErrNotFound)
return ok
}
// ErrMultipleMatch is to be returned when more than one entity, item, element
// is found, where only one was expected.
type ErrMultipleMatch struct {
typename string
Matching []Id
}
func NewErrMultipleMatch(typename string, matching []Id) *ErrMultipleMatch {
return &ErrMultipleMatch{typename: typename, Matching: matching}
}
func (e ErrMultipleMatch) Error() string {
matching := make([]string, len(e.Matching))
for i, match := range e.Matching {
matching[i] = match.String()
}
return fmt.Sprintf("Multiple matching %s found:\n%s",
e.typename,
strings.Join(matching, "\n"))
}
func IsErrMultipleMatch(err error) bool {
_, ok := err.(*ErrMultipleMatch)
return ok
}
// ErrInvalidFormat is to be returned when reading on-disk data with an unexpected
// format or version.
type ErrInvalidFormat struct {
version uint
expected uint
}
func NewErrInvalidFormat(version uint, expected uint) *ErrInvalidFormat {
return &ErrInvalidFormat{
version: version,
expected: expected,
}
}
func NewErrUnknownFormat(expected uint) *ErrInvalidFormat {
return &ErrInvalidFormat{
version: 0,
expected: expected,
}
}
func (e ErrInvalidFormat) Error() string {
if e.version == 0 {
return fmt.Sprintf("unreadable data, you likely have an outdated repository format, please use https://github.com/git-bug/git-bug-migration to upgrade to format version %v", e.expected)
}
if e.version < e.expected {
return fmt.Sprintf("outdated repository format %v, please use https://github.com/git-bug/git-bug-migration to upgrade to format version %v", e.version, e.expected)
}
return fmt.Sprintf("your version of git-bug is too old for this repository (format version %v, expected %v), please upgrade to the latest version", e.version, e.expected)
}
