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Make every not exist error unwrappable to a fs.ErrNotExist (#20891)

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A lot of our code is repeatedly testing if individual errors are
specific types of Not Exist errors. This is repetitative and unnecesary.
`Unwrap() error` provides a common way of labelling an error as a
NotExist error and we can/should use this.

This PR has chosen to use the common `io/fs` errors e.g.
`fs.ErrNotExist` for our errors. This is in some ways not completely
correct as these are not filesystem errors but it seems like a
reasonable thing to do and would allow us to simplify a lot of our code
to `errors.Is(err, fs.ErrNotExist)` instead of
`package.IsErr...NotExist(err)`

I am open to suggestions to use a different base error - perhaps
`models/db.ErrNotExist` if that would be felt to be better.


Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: delvh <dev.lh@web.de>
This commit is contained in:
zeripath 2022-10-18 06:50:37 +01:00 • committed by GitHub
parent 6af1a0c8c0
commit 716fcfcf72
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48 changed files with 545 additions and 20 deletions
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12
models/auth/oauth2.go
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@ -486,7 +486,7 @@ type ErrOAuthClientIDInvalid struct {
ClientID string
}
// IsErrOauthClientIDInvalid checks if an error is a ErrReviewNotExist.
// IsErrOauthClientIDInvalid checks if an error is a ErrOAuthClientIDInvalid.
func IsErrOauthClientIDInvalid(err error) bool {
_, ok := err.(ErrOAuthClientIDInvalid)
return ok
@ -497,6 +497,11 @@ func (err ErrOAuthClientIDInvalid) Error() string {
return fmt.Sprintf("Client ID invalid [Client ID: %s]", err.ClientID)
}
// Unwrap unwraps this as a ErrNotExist err
func (err ErrOAuthClientIDInvalid) Unwrap() error {
return util.ErrNotExist
}
// ErrOAuthApplicationNotFound will be thrown if id cannot be found
type ErrOAuthApplicationNotFound struct {
ID int64
@ -513,6 +518,11 @@ func (err ErrOAuthApplicationNotFound) Error() string {
return fmt.Sprintf("OAuth application not found [ID: %d]", err.ID)
}
// Unwrap unwraps this as a ErrNotExist err
func (err ErrOAuthApplicationNotFound) Unwrap() error {
return util.ErrNotExist
}
// GetActiveOAuth2ProviderSources returns all actived LoginOAuth2 sources
func GetActiveOAuth2ProviderSources() ([]*Source, error) {
sources := make([]*Source, 0, 1)