Commit Graph

6 Commits

Author SHA1 Message Date
WithoutPants 4c286d7ab5
Fix dataloaders not loading in js plugins (#3014)
* Include dataloaders in js plugin gql calls
* Handle gql errors correctly in js plugins
2022-10-18 11:09:54 +11:00
SmallCoccinelle 401660e6a3
Hoist context, enable errchkjson (#2488)
* Make the script scraper context-aware

Connect the context to the command execution. This means command
execution can be aborted if the context is canceled. The context is
usually bound to user-interaction, i.e., a scraper operation issued
by the user. Hence, it seems correct to abort a command if the user
aborts.

* Enable errchkjson

Some json marshal calls are *safe* in that they can never fail. This is
conditional on the types of the the data being encoded. errchkjson finds
those calls which are unsafe, and also not checked for errors.

Add logging warnings to the place where unsafe encodings might happen.
This can help uncover usage bugs early in stash if they are tripped,
making debugging easier.

While here, keep the checker enabled in the linter to capture future
uses of json marshalling.

* Pass the context for zip file scanning.

* Pass the context in scanning

* Pass context, replace context.TODO()

Where applicable, pass the context down toward the lower functions in
the call stack. Replace uses of context.TODO() with the passed context.

This makes the code more context-aware, and you can rely on aborting
contexts to clean up subsystems to a far greater extent now.

I've left the cases where there is a context in a struct. My gut feeling
is that they have solutions that are nice, but they require more deep
thinking to unveil how to handle it.

* Remove context from task-structs

As a rule, contexts are better passed explicitly to functions than they
are passed implicitly via structs. In the case of tasks, we already
have a valid context in scope when creating the struct, so remove ctx
from the struct and use the scoped context instead.

With this change it is clear that the scanning functions are under a
context, and the task-starting caller has jurisdiction over the context
and its lifetime. A reader of the code don't have to figure out where
the context are coming from anymore.

While here, connect context.TODO() to the newly scoped context in most
of the scan code.

* Remove context from autotag struct too

* Make more context-passing explicit

In all of these cases, there is an applicable context which is close
in the call-tree. Hook up to this context.

* Simplify context passing in manager

The managers context handling generally wants to use an outer context
if applicable. However, the code doesn't pass it explicitly, but stores
it in a struct. Pull out the context from the struct and use it to
explicitly pass it.

At a later point in time, we probably want to handle this by handing
over the job to a different (program-lifetime) context for background
jobs, but this will do for a start.
2022-04-15 11:34:53 +10:00
SmallCoccinelle 655d3ae969
Toward better context handling (#1835)
* Use the request context

The code uses context.Background() in a flow where there is a
http.Request. Use the requests context instead.

* Use a true context in the plugin example

Let AddTag/RemoveTag take a context and use that context throughout
the example.

* Avoid the use of context.Background

Prefer context.TODO over context.Background deep in the call chain.

This marks the site as something which we need to context-handle
later, and also makes it clear to the reader that the context is
sort-of temporary in the code base.

While here, be consistent in handling the `act` variable in each
branch of the if .. { .. } .. check.

* Prefer context.TODO over context.Background

For the different scraping operations here, there is a context
higher up the call chain, which we ought to use. Mark the call-sites
as TODO for now, so we can come back later on a sweep of which parts
can be context-lifted.

* Thread context upwards

Initialization requires context for transactions. Thread the context
upward the call chain.

At the intialization call, add a context.TODO since we can't break this
yet. The singleton assumption prevents us from pulling it up into main for
now.

* make tasks context-aware

Change the task interface to understand contexts.

Pass the context down in some of the branches where it is needed.

* Make QueryStashBoxScene context-aware

This call naturally sits inside the request-context. Use it.

* Introduce a context in the JS plugin code

This allows us to use a context for HTTP calls inside the system.

Mark the context with a TODO at top level for now.

* Nitpick error formatting

Use %v rather than %s for error interfaces.
Do not begin an error strong with a capital letter.

* Avoid the use of http.Get in FFMPEG download chain

Since http.Get has no context, it isn't possible to break out or have
policy induced. The call will block until the GET completes. Rewrite
to use a http Request and provide a context.

Thread the context through the call chain for now. provide
context.TODO() at the top level of the initialization chain.

* Make getRemoteCDPWSAddress aware of contexts

Eliminate a call to http.Get and replace it with a context-aware
variant.

Push the context upwards in the call chain, but plug it before the
scraper interface so we don't have to rewrite said interface yet.

Plugged with context.TODO()

* Scraper: make the getImage function context-aware

Use a context, and pass it upwards. Plug it with context.TODO()
up the chain before the rewrite gets too much out of hand for now.

Minor tweaks along the way, remove a call to context.Background()
deep in the call chain.

* Make NOTIFY request context-aware

The call sits inside a Request-handler. So it's natural to use the
requests context as the context for the outgoing HTTP request.

* Use a context in the url scraper code

We are sitting in code which has a context, so utilize it for the
request as well.

* Use a context when checking versions

When we check the version of stash on Github, use a context. Thread
the context up to the initialization routine of the HTTP/GraphQL
server and plug it with a context.TODO() for now.

This paves the way for providing a context to the HTTP server code in a
future patch.

* Make utils func ReadImage context-aware

In almost all of the cases, there is a context in the call chain which
is a natural use. This is true for all the GraphQL mutations.

The exception is in task_stash_box_tag, so plug that task with
context.TODO() for now.

* Make stash-box get context-aware

Thread a context through the call chain until we hit the Client API.
Plug it with context.TODO() there for now.

* Enable the noctx linter

The code is now free of any uncontexted HTTP request. This means we
pass the noctx linter, and we can enable it in the code base.
2021-10-14 15:32:41 +11:00
SmallCoccinelle 87709fd018
Errcheck phase 1 (#1715)
* Avoid redundant logging in migrations

Return the error and let the caller handle the logging of the error if
needed.

While here, defer m.Close() to the function boundary.

* Treat errors as values

Use %v rather than %s and pass the errors directly.

* Generate a wrapped error on stat-failure

* Log 3 unchecked errors

Rather than ignore errors, log them at
the WARNING log level.

The server has been functioning without these, so assume they are not at
the ERROR level.

* Propagate errors upward

Failure in path generation was ignored. Propagate the errors upward the
call stack, so it can be handled at the level of orchestration.

* Warn on errors

Log errors rather than quenching them.

Errors are logged at the Warn-level for now.

* Check error when creating test databases

Use the builtin log package and stop the program fatally on error.

* Add warnings to uncheck task errors

Focus on the task system in a single commit, logging unchecked
errors as warnings.

* Warn-on-error in API routes

Look through the API routes, and make sure errors are being logged if
they occur. Prefer the Warn-log-level because none of these has proven
to be fatal in the system up until now.

* Propagate error when adding Util API

* Propagate error on adding util API

* Return unhandled error

* JS log API: propagate and log errors

* JS Plugins: log GQL addition failures.

* Warn on failure to write to stdin

* Warn on failure to stop task

* Wrap viper.BindEnv

The current viper code only errors if no name is provided, so it should
never fail. Rewrite the code flow to factor through a panic-function.

This removes error warnings from this part of the code.

* Log errors in concurrency test

If we can't initialize the configuration, treat the test as a failure.

* Warn on errors in configuration code

* Plug an unchecked error in gallery zip walking

* Warn on screenshot serving failure

* Warn on encoder screenshot failure

* Warn on errors in path-handling code

* Undo the errcheck on configurations for now.

* Use one-line initializers where applicable

rather than using

  err := f()
  if err!= nil { ..

prefer the shorter

  if err := f(); err != nil { ..

If f() isn't too long of a name, or wraps a function with a body.
2021-09-21 09:34:25 +10:00
WithoutPants 46bbede9a0
Plugin hooks (#1452)
* Refactor session and plugin code
* Add context to job tasks
* Show hooks in plugins page
* Refactor session management
2021-06-11 17:24:58 +10:00
WithoutPants 9b57fbbf50
Embedded javascript plugins (#1393) 2021-05-26 14:17:53 +10:00