* Don't capitalize local variables
ValidCodecs -> validCodecs
* Capitalize deprecation markers
A deprecated marker should be capitalized.
* Use re.MustCompile for static regexes
If the regex fails to compile, it's a programmer error, and should be
treated as such. The regex is entirely static.
* Simplify else-if constructions
Rewrite
else { if cond {}}
to
else if cond {}
* Use a switch statement to analyze formats
Break an if-else chain. While here, simplify code flow.
Also introduce a proper static error for unsupported image formats,
paving the way for being able to check against the error.
* Rewrite ifElse chains into switch statements
The "Effective Go" https://golang.org/doc/effective_go#switch document
mentions it is more idiomatic to write if-else chains as switches when
it is possible.
Find all the plain rewrite occurrences in the code base and rewrite.
In some cases, the if-else chains are replaced by a switch scrutinizer.
That is, the code sequence
if x == 1 {
..
} else if x == 2 {
..
} else if x == 3 {
...
}
can be rewritten into
switch x {
case 1:
..
case 2:
..
case 3:
..
}
which is clearer for the compiler: it can decide if the switch is
better served by a jump-table then a branch-chain.
* Rewrite switches, introduce static errors
Introduce two new static errors:
* `ErrNotImplmented`
* `ErrNotSupported`
And use these rather than forming new generative errors whenever the
code is called. Code can now test on the errors (since they are static
and the pointers to them wont change).
Also rewrite ifElse chains into switches in this part of the code base.
* Introduce a StashBoxError in configuration
Since all stashbox errors are the same, treat them as such in the code
base. While here, rewrite an ifElse chain.
In the future, it might be beneifical to refactor configuration errors
into one error which can handle missing fields, which context the error
occurs in and so on. But for now, try to get an overview of the error
categories by hoisting them into static errors.
* Get rid of an else-block in transaction handling
If we succesfully `recover()`, we then always `panic()`. This means the
rest of the code is not reachable, so we can avoid having an else-block
here.
It also solves an ifElse-chain style check in the code base.
* Use strings.ReplaceAll
Rewrite
strings.Replace(s, o, n, -1)
into
strings.ReplaceAll(s, o, n)
To make it consistent and clear that we are doing an all-replace in the
string rather than replacing parts of it. It's more of a nitpick since
there are no implementation differences: the stdlib implementation is
just to supply -1.
* Rewrite via gocritic's assignOp
Statements of the form
x = x + e
is rewritten into
x += e
where applicable.
* Formatting
* Review comments handled
Stash-box is a proper noun.
Rewrite a switch into an if-chain which returns on the first error
encountered.
* Use context.TODO() over context.Background()
Patch in the same vein as everything else: use the TODO() marker so we
can search for it later and link it into the context tree/tentacle once
it reaches down to this level in the code base.
* Tell the linter to ignore a section in manager_tasks.go
The section is less readable, so mark it with a nolint for now. Because
the rewrite enables a ifElseChain, also mark that as nolint for now.
* Use strings.ReplaceAll over strings.Replace
* Apply an ifElse rewrite
else { if .. { .. } } rewrite into else if { .. }
* Use switch-statements over ifElseChains
Rewrite chains of if-else into switch statements. Where applicable,
add an early nil-guard to simplify case analysis. Also, in
ScanTask's Start(..), invert the logic to outdent the whole block, and
help the reader: if it's not a scene, the function flow is now far more
local to the top of the function, and it's clear that the rest of the
function has to do with scene management.
* Enable gocritic on the code base.
Disable appendAssign for now since we aren't passing that check yet.
* Document the nolint additions
* Document StashBoxBatchPerformerTagInput
* Replace error assertions with Go 1.13 style
Use `errors.As(..)` over type assertions. This enables better use of
wrapped errors in the future, and lets us pass some errorlint checks
in the process.
The rewrite is entirely mechanical, and uses a standard idiom for
doing so.
* Use Go 1.13's errors.Is(..)
Rather than directly checking for error equality, use errors.Is(..).
This protects against error wrapping issues in the future.
Even though something like sql.ErrNoRows doesn't need the wrapping, do
so anyway, for the sake of consistency throughout the code base.
The change almost lets us pass the `errorlint` Go checker except for
a missing case in `js.go` which is to be handled separately; it isn't
mechanical, like these changes are.
* Remove goconst
goconst isn't a useful linter in many cases, because it's false positive
rate is high. It's 100% for the current code base.
* Avoid direct comparison of errors in recover()
Assert that we are catching an error from recover(). If we are,
check that the error caught matches errStop.
* Enable the "errorlint" checker
Configure the checker to avoid checking for errorf wraps. These are
often false positives since the suggestion is to blanket wrap errors
with %w, and that exposes the underlying API which you might not want
to do.
The other warnings are good however, and with the current patch stack,
the code base passes all these checks as well.
* Configure rowserrcheck
The project uses sqlx. Configure rowserrcheck to include said package.
* Mechanically rewrite a large set of errors
Mechanically search for errors that look like
fmt.Errorf("...%s", err.Error())
and rewrite those into
fmt.Errorf("...%v", err)
The `fmt` package is error-aware and knows how to call err.Error()
itself.
The rationale is that this is more idiomatic Go; it paves the
way for using error wrapping later with %w in some sites.
This patch only addresses the entirely mechanical rewriting caught by
a project-side search/replace. There are more individual sites not
addressed by this patch.
* Enable safe linters
Enable the linters dogsled, rowserrcheck, and sqlclosecheck.
These report no errors currently in the code base.
Enable misspell.
Misspell finds two spelling mistakes in comments, which are fixed by the
patch as well.
Add and sort linters which are relatively
safe to add over time. Comment them out for now.
* Close the response body
If we can get a HTTP response, it has a body which ought to be closed.
By doing so, we avoid potentially leaking connections.
* Enable the exportloopref linter
There are two places in the code with these warnings. Fix them while
enabling the linter.
* Remove redundant types in tests
If a slice already determines the type, the inner type declaration is
redundant. Remove the inner declarations.
* Mark autotag test cases as parallel
Autotag test cases is by far the outlier when it comes to test time.
While go test runs test cases in parallel,
it doesn't do so inside a given package, unless one marks the test cases
as parallel.
This change provides a significant speedup on a 8-core machine for test
runs.
* Fix all revive warnings in the code base
All of these are of the form
```
var Identifier Type = Expr
```
where the `Type` is known from the output of `Expr` and can be omitted
as a result.
* Handle unchecked errors
* Remove new-from-rev
Since the project passes all linter checks now, including older
revisions, we can remove new-from-rev. While here, reorder the linter
config file, and move the enabled linters up and settings down.
* Fix failing test cases
Studio & Performer export tests use local time rather than UTC. This
fixes the test cases so integration test
passes.
* Add scraping support for performer tags
* Add performer count to tag cards
* Refactor sqlite test setup
* Add performer tag filtering in gallery and image
* Add bulk update performer
* Add Performers tab to tag page
* Add count filters and sort bys for tags
* Move scene count to icon in performer card #1148
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