| Commit message (Collapse) | Author | Age | Files | Lines |
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Before we were changing the state of the lookup_context for the duration
of the with_layout_format block, but since we already know the formats
we can just pass it explicitly.
Related with 8d7ce0f22aee09d20091a4dc58cb379a09d13e26
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explicitely.
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make disable_with default in submit_tag
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Prevents double submission by making disable_with the default.
Default disable_with option will only be applied if user has not
specified her/his own disable_with option, whether that is in the
`data-disable-with` string form or the
`:data => { :disable_with => "Saving..." }` hash form. disable_with
will default to the value attribute.
A configuration option was added to opt out of this functionality if
the user so desires.
`config.action_view.automatically_disable_submit_tag = false`
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vincefrancesi/date-helper-use-hidden-documentation
Documentation for ActionView::Helpers::DateHelper :use_hidden option
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skip]
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Oops, I broke the build :(
Fixes the method signature of `assign_parameters` which now takes 6
arguments instead of 4. We likely will end up chaning the method
signature further so good to know this test is here.
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today the only option we have is "\n" and is hardcoded.
With this change you will be able to specify any break sequence ("\r\n" for example) as an option.
adding proper documentation for break_sequence in ActionView::Helpers::TextHelper.word_wrap
adding some more documentation for word_wrap custom break sequence and making sure we use new hash syntax
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Dont try to call method missing in routes if thats not what we want
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If, doing a test like this:
```
class BugTest < ActionView::TestCase
def test_foo
omg
end
```
Will raise with:
```
RuntimeError: In order to use #url_for, you must include routing helpers
explicitly. For instance, `include
Rails.application.routes.url_helpers`.
```
Thats a bit confusing, as we are not calling url_for at all.
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Browsers have not been limited to two connections per host for quite
some time now. With more connections allowed, the trade-off involved in
asset host distribution isn't so clear and it becomes more important
that developers measure actual performance before and after.
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Using the string version of the class reference is now deprecated when
referencing middleware. This should be written as a class not as a string.
Deprecation warning that this change fixes:
```
DEPRECATION WARNING: Passing strings or symbols to the middleware
builder is deprecated, please change
them to actual class references. For example:
"ActionDispatch::ShowExceptions" => ActionDispatch::ShowExceptions
```
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In the `tag_options` method, strings are continuously added to the
`output` string. Previously, we concatenated two strings and added the
generated string to `output`. By adding each of the strings to
`output`, one after the other, we will save the allocation of that
concatenated string.
Benchmark:
require 'benchmark/ips'
sep = " ".freeze
Benchmark.ips do |x|
x.report("string +") {
output = ""
output << sep + "foo"
}
x.report("string <<") {
output = ""
output << sep
output << "foo"
}
x.compare!
end
Results (Ruby 2.2.2):
Calculating -------------------------------------
string + 88.086k i/100ms
string << 94.287k i/100ms
-------------------------------------------------
string + 2.407M (± 5.8%) i/s - 12.068M
string << 2.591M (± 7.0%) i/s - 12.917M
Comparison:
string <<: 2591482.4 i/s
string +: 2406883.7 i/s - 1.08x slower
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In the `tag_options` method an array is used to build up elements, then `Array#*` (which is an alias for `Array#join` is called to turn the array into a string. Instead of allocating an array to build a string, we can build the string we want from the beginning.
Saved: 121,743 bytes 893 objects
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content_tag's first argument is will generate a string with an html tag so `:a` will generate: `<a></a>`. When this happens, the symbol is implicitly `to_s`-d so a new string is allocated. We can get around that by using a frozen string instead which
This change buys us 74,236 bytes of memory and 1,855 fewer objects per request.
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The instrument method creates new strings, the most common action to instrument is "!render_template` so we can detect when that action is occurring and use a frozen string instead.
This change buys us 113,714 bytes of memory and 1,790 fewer objects per request.
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No idea why on earth this hash key isn't already optimized by MRI, but it isn't. :shit:
This change buys us 74,077 bytes of memory and 1,852 fewer objects per request.
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When an unknonwn key is passed to the hash in `PRE_CONTENT_STRINGS` it returns nil, when you call "#{nil}" it allocates a new empty string. We can get around this allocation by using a default value `Hash.new { "".freeze }`. We can avoid the `to_sym` call by pre-populating the hash with a symbol key in addition to a string key.
We can freeze some strings when using Array#* to reduce allocations.
Array#join can take frozen strings.
This change buys us 86,600 bytes of memory and 1,857 fewer objects per request.
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Add wildcard template dependencies.
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grammar fix to content_for method documentation in capture_helper.rb [ci skip]
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Use digest cache in development.
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Avoid computing the same fragment digest many times when looping over templates.
The cache is cleared on every request so template changes are still picked up.
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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
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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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Various grammar corrections and wrap to 80 characters.
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This is another take at #14384 as we decided to wait until `master` is
targeting Rails 5.0. This commit is implementation-complete, as it
guarantees that all the public methods on the hash-inherited Parameters
are still working (based on test case). We can decide to follow-up later
if we want to remove some methods out from Parameters.
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ActionController::TestResponse was removed in d9fe10c and caused a test
failure on Action View as its test case still refers to it.
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Allow `pluralize` helper to take a locale.
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This is already supported in `ActiveSupport::Inflector#pluralize` and `String#pluralize`, so we just forward the locale.
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If a template includes `# Template Collection: ...` anywhere in its
source, that name will be used as the cache name for the partial that is
rendered for the collection.
This allows users to enable collection caching even if the template
doesn't start with `<% cache ... do %>`.
Moreover, the `# Template Collection: ...` notation is recognized in all
template types (and template types other than ERB can define a
resource_cache_call_pattern method to allow the `cache ... do` pattern
to be recognized too).
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Passing nil to image_tag
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Adds the `virtual_path` option to `cache_fragment_name` so it can
be provided when needed.
That allows `cache_collection_render` to get the appropriate cache
key with the digest generated based on the template and prevent
collision with other templates that cache the same collection.
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Improve detection of partial templates eligible for collection caching.
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The regular expression which was used to detect partial templates that
begin with a `<% cache ... do %>` call missed some cases. This commits
attempts to improve the detection for some cases such as multi-line
comments at the beginning of the template. The different templates are
listed in two new unit test methods.
Note that specially crafted Ruby code can still evade such `cache`-call
detection: for example, a user might have its own method which itself
calls the Rails `cache` helper. In such a case, the template's code
doesn't start with a literal `cache` string and therefore will not be
eligible for collection caching.
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Remove duplicate private statement
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