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This reverts commit 3420a14590c0e6915d8b6c242887f74adb4120f9, reversing
changes made to afb66a5a598ce4ac74ad84b125a5abf046dcf5aa.
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Erubi offers the following advantages for Rails:
* Works with ruby's --enable-frozen-string-literal option
* Has 88% smaller memory footprint
* Does no freedom patching (Erubis adds a method to Kernel)
* Has simpler internals (1 file, <150 lines of code)
* Has an open development model (Erubis doesn't have a
public source control repository or bug tracker)
* Is not dead (Erubis hasn't been updated since 2011)
Erubi is a simplified fork of Erubis that contains just the
parts that are generally needed (which includes the parts
that Rails uses). The only intentional difference in
behavior is that it does not include support for <%=== tags
for debug output. That could be added to the ActionView ERB
handler if it is desired.
The Erubis template handler remains in a deprecated state
so that code that accesses it directly does not break. It
can be removed after Rails 5.1.
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Mainly around `nil`
[ci skip]
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The current code base is not uniform. After some discussion,
we have chosen to go with double quotes by default.
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Since 69009f, `ActionController::Metal::DataStreaming#send_file` doesn't
set `@_response_body` anymore.
`AbstractController::Callbacks` used `@_response_body` in its callback
terminator, so it failed to halt the callback cycle when using `#send_file`
from a `before_action`.
Instead, it now uses `#performed?` on `AbstractController::Base` and
`ActionController::Metal`, which checks `response.committed?`, besides
checking if `@_response_body` is set, if possible.
Example application: https://gist.github.com/jeffkreeftmeijer/78ae4572f36b198e729724b0cf79ef8e
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This reverts commit 0ce7eae7418f1b9bb06b351c1f26d50c3674c0d0.
Tests were broken https://travis-ci.org/rails/rails/jobs/131850726#L520
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This way we don't have to make multiple calls on anonymous controllers
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Right now referencing the constant `AbstractController::Rendering`
causes `ActionView::Base` to be loaded, and thus the load hooks for
action_view are run. If that load hook references any part of action
view that then references action controller (such as
`ActionView::TestCase`), the constant `AbstractController::Rendering`
will attempt to be autoloaded and blow up.
With this change, `ActionView::LoadPaths` no longer requires
`ActionView::Base` (which it had no reason to require). There was a
needed class from `AbstractController::Base` in the Rendering module,
which I've moved into its own file so we don't need to load
all of `AbstractController::Base` there.
This commit fixes
https://github.com/rails/rails-controller-testing/issues/21
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This reverts commit 9f93a5efbba3e1cbf0bfa700a17ec8d1ef60d7c6.
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rather than an action name and *args. The *args were not being used in regular
applications outside tests. This causes a backwards compatibility
issue, but reduces array allocations for most users.
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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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This sort of documentation style comes from 2009, probably due to
the merging of merb (see https://github.com/rails/rails/commit/38b608ecab2441cd0c4e75bc08bdf57fcf85dd71#diff-017d9bc9b1d2bdae199b938d72c15488R120).
Rails follows Ruby's convention to define which values are "truthy" or
"falsey", so there is no need to specify that the returned value must
strictly be a TrueClass or FalseClass. /cc @fxn
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Fixes internal links, adds examples and set fixed-width fonts.
[ci skip]
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Email does not support relative links since there is no implicit host. Therefore all links inside of emails must be fully qualified URLs. All path helpers are now deprecated. When removed, the error will give early indication to developers to use `*_url` methods instead.
Currently if a developer uses a `*_path` helper, their tests and `mail_view` will not catch the mistake. The only way to see the error is by sending emails in production. Preventing sending out emails with non-working path's is the desired end goal of this PR.
Currently path helpers are mixed-in to controllers (the ActionMailer::Base acts as a controller). All `*_url` and `*_path` helpers are made available through the same module. This PR separates this behavior into two modules so we can extend the `*_path` methods to add a Deprecation to them. Once deprecated we can use this same area to raise a NoMethodError and add an informative message directing the developer to use `*_url` instead.
The module with warnings is only mixed in when a controller returns false from the newly added `supports_relative_path?`.
Paired @sgrif & @schneems
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Because it is more natural way to test substring inclusion. Also, in
this particular case it is much faster.
In general, using `Regexp.new str` for such kind of things is dangerous.
The string must be escaped, unless you know what you're doing. Example:
Regexp.new "\\" # HELLO WINDOWS
# RegexpError: too short escape sequence: /\/
The right way to do this is escape the string
Regexp.new Regexp.escape "\\"
# => /\\/
Here is the benchmark showing how faster `include?` call is.
```
require 'benchmark/ips'
Benchmark.ips do |x|
x.report('include?') { !"index".to_s.include? File::SEPARATOR }
x.report(' !~ ') { "index" !~ Regexp.new(File::SEPARATOR) }
end
__END__
Calculating -------------------------------------
include? 75754 i/100ms
!~ 21089 i/100ms
-------------------------------------------------
include? 3172882.3 (±4.5%) i/s - 15832586 in 5.000659s
!~ 322918.8 (±8.6%) i/s - 1602764 in 4.999509s
```
Extra `.to_s` call is needed to handle the case when `action_name` is
`nil`. If it is omitted, some tests fail.
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This is a follow up to #15058.
This exception is regularly raised during development. This means it will enter
the user realm. We should provide an API page to show that this exception is public API.
/cc @schneems
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This will avoid directory traversal in implicit render.
Fixes: CVE-2014-0130
Conflicts:
actionpack/lib/abstract_controller/base.rb
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There are too many "action name" variables around the process method.
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