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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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GPG key ID: 4AEE18F83AFDEB23
48 changed files with 545 additions and 20 deletions
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6
models/issues/tracked_time.go
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@ -236,7 +236,7 @@ func DeleteIssueUserTimes(issue *Issue, user *user_model.User) error {
return err
}
if removedTime == 0 {
return db.ErrNotExist{}
return db.ErrNotExist{Resource: "tracked_time"}
}
if err := issue.LoadRepo(ctx); err != nil {
@ -296,7 +296,7 @@ func deleteTimes(ctx context.Context, opts FindTrackedTimesOptions) (removedTime
func deleteTime(ctx context.Context, t *TrackedTime) error {
if t.Deleted {
return db.ErrNotExist{ID: t.ID}
return db.ErrNotExist{Resource: "tracked_time", ID: t.ID}
}
t.Deleted = true
_, err := db.GetEngine(ctx).ID(t.ID).Cols("deleted").Update(t)
@ -310,7 +310,7 @@ func GetTrackedTimeByID(id int64) (*TrackedTime, error) {
if err != nil {
return nil, err
} else if !has {
return nil, db.ErrNotExist{ID: id}
return nil, db.ErrNotExist{Resource: "tracked_time", ID: id}
}
return time, nil
}