| Commit message (Collapse) | Author | Age | Files | Lines |
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May be missed in 5fe141638f1243ac6ae187ae14aa398b4c1875a2 commit
Also fixes the broken build
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This is part of a larger refactoring on controller tests. We needed to
move these methods here so that we could get rid of the `|| key ==
:action || key == :controller` in `assign_parameters`. We know this is
ugly and intend to fix it but for now `generate_extras` needs to be used
in the two methods to access the path and the query_string_keys.
We're adding `:controller` and `:action` to the `query_string_keys`
because we always need a controller and action. If someone passed
`action` or `controller` in in there test they are unambigious - we
know they have to go into the query params.
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Authorization scheme should be case insensitive. Fixes #21199
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`extra_keys` is a confusing variable name because it's not clear what is
"extra". This renames it to `query_string_keys` so it's clear that the
"extra" is just the query string.
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people should be accessing request information through the request
object, not via the env hash. If they really really want at the env
hash, then they can get it off the request.
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remove the setter. The request object manages the env hash, so any
mutations need to go through it
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Looks like this was left over from converting Rails to Rack. I think
it's safe to remove now.
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Actions are processed through `dispatch`, so they should have the
request set on them before any user land code can be executed. Lets
stop setting _env on the controller, and give access to it through the
`env` method.
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Convert things like this:
middleware.use "Foo::Bar"
to this:
middleware.use Foo::Bar
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use a strategy pattern to calculate the conditional in `valid?` in
advance.
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We should do the hard work outside the constructor. Also fix the tests
to not directly construct middleware objects, but to go through the
stack object.
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allow testing controllers that use session#fetch with a default value.
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The cookie jar can just ask the request object for the information it
needs. This allows us to stop allocating hashes for options, and also
allows us to delay calculating values in advance. Generating the
options hash forced us to calculate values that we may never have needed
at runtime
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Accessing a request object has nice advantages over accessing a hash.
If you use a missing method name, you'll get an exception rather than a
`nil` (is one nice feature)
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This is a follow up to #21008.
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Add documentation to get a running custom base controller [ci skip]
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The request.script_name is dup-d which allocates an extra string. It is most commonly an empty string "". We can save a ton of string allocations by checking first if the string is empty, if so we can use a frozen empty string instead of duplicating an empty string.
This change buys us 35,714 bytes of memory and 893 fewer objects per request.
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Fix params_wrapper doc [ci skip]
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This feature also works with `PUT`, `PATCH` and `DELETE` requests.
Also developers can add `:url_encoded_form` and `:multipart_form`
into the `:format` for wrapping url encoded or multipart form data.
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there is no reason to `convert_hashes_to_parameters` with an assignemt
flag. The caller knows whether or not it wants the value assigned. We
should just change the uncommon case (not writing to the underlying
hash) to just call the conversion method and return that value.
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only hashes are converted to parameter objects, so lets add a branch for
them. This also removes a is_a? test for Parameters so we can be
abstracted from the class.
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Freeze string literals when not mutated.
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I wrote a utility that helps find areas where you could optimize your program using a frozen string instead of a string literal, it's called [let_it_go](https://github.com/schneems/let_it_go). After going through the output and adding `.freeze` I was able to eliminate the creation of 1,114 string objects on EVERY request to [codetriage](codetriage.com). How does this impact execution?
To look at memory:
```ruby
require 'get_process_mem'
mem = GetProcessMem.new
GC.start
GC.disable
1_114.times { " " }
before = mem.mb
after = mem.mb
GC.enable
puts "Diff: #{after - before} mb"
```
Creating 1,114 string objects results in `Diff: 0.03125 mb` of RAM allocated on every request. Or 1mb every 32 requests.
To look at raw speed:
```ruby
require 'benchmark/ips'
number_of_objects_reduced = 1_114
Benchmark.ips do |x|
x.report("freeze") { number_of_objects_reduced.times { " ".freeze } }
x.report("no-freeze") { number_of_objects_reduced.times { " " } }
end
```
We get the results
```
Calculating -------------------------------------
freeze 1.428k i/100ms
no-freeze 609.000 i/100ms
-------------------------------------------------
freeze 14.363k (± 8.5%) i/s - 71.400k
no-freeze 6.084k (± 8.1%) i/s - 30.450k
```
Now we can do some maths:
```ruby
ips = 6_226k # iterations / 1 second
call_time_before = 1.0 / ips # seconds per iteration
ips = 15_254 # iterations / 1 second
call_time_after = 1.0 / ips # seconds per iteration
diff = call_time_before - call_time_after
number_of_objects_reduced * diff * 100
# => 0.4530373333993266 miliseconds saved per request
```
So we're shaving off 1 second of execution time for every 220 requests.
Is this going to be an insane speed boost to any Rails app: nope. Should we merge it: yep.
p.s. If you know of a method call that doesn't modify a string input such as [String#gsub](https://github.com/schneems/let_it_go/blob/b0e2da69f0cca87ab581022baa43291cdf48638c/lib/let_it_go/core_ext/string.rb#L37) please [give me a pull request to the appropriate file](https://github.com/schneems/let_it_go/blob/b0e2da69f0cca87ab581022baa43291cdf48638c/lib/let_it_go/core_ext/string.rb#L37), or open an issue in LetItGo so we can track and freeze more strings.
Keep those strings Frozen
![](https://www.dropbox.com/s/z4dj9fdsv213r4v/let-it-go.gif?dl=1)
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Fix exception overwritten for parameters fetch method
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When executing an `ActionController::Parameters#fetch` with a block
that raises a `KeyError` the raised `KeyError` will be rescued and
converted to an `ActionController::ParameterMissing` exception,
covering up the original exception.
[Jonas Schubert Erlandsson & Roque Pinel]
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This will silence deprecation warnings.
Most of the test can be changed from `render :text` to render `:plain`
or `render :body` right away. However, there are some tests that needed
to be fixed by hand as they actually assert the default Content-Type
returned from `render :body`.
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Add deprecation warning for `render :text`
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We've started on discouraging the usage of `render :text` in #12374.
This is a follow-up commit to make sure that we print out the
deprecation warning.
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this way we don't need to call `to_unsafe_h` to get access to ask
questions about the underlying hash
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now `hash_filter` doesn't need to know about the `Parameters` class
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Since we proved that `element` is always of type `Parameter`, we know
that it will always respond to `permit`, so lets remove this conditional
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`element` can never be a hash because:
1. `slice` returns a Parameters object and calls each on it: https://github.com/rails/rails/blob/cb3f25593b1137e344086364d4b1a52c08e8eb3b/actionpack/lib/action_controller/metal/strong_parameters.rb#L656
2. `each` which is implemented by `each_pair` will call `convert_hashes_to_parameters` on the value: https://github.com/rails/rails/blob/cb3f25593b1137e344086364d4b1a52c08e8eb3b/actionpack/lib/action_controller/metal/strong_parameters.rb#L192-197
3. `convert_hashes_to_parameters` will convert any hash objects in to parameters objects: https://github.com/rails/rails/blob/cb3f25593b1137e344086364d4b1a52c08e8eb3b/actionpack/lib/action_controller/metal/strong_parameters.rb#L550-566
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Now that the value is cached on the stack,
`array_of_permitted_scalars_filter` is exactly the same as
`array_of_permitted_scalars?`, so lets just have one
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this way the method doesn't have to know what the new params object is,
it just yields to a block. This change also caches the value of
`self[key]` on the stack
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We should disconnect `array_of_permitted_scalars_filter` from the
instance so that we can make hash filtering functional. For now, pull
the conditional up out of that method
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