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* Freeze string literals when not mutated.schneems2015-07-191-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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)
* Change the `index` arg of `ActionDispatch::Static#new` to a kwargYuki Nishijima2015-06-111-4/+3
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* Fix regression in #20017: wrong number of arguments errorJon Atack2015-05-301-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | and use coherent quoting/spacing. This should hopefully fix a regression that was introduced with #20017, causing deployment pushes to Heroku to be rejected with the following trace: ArgumentError: wrong number of arguments (2 for 3) remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/bun dler/gems/rails-0ef7e73f0af7/actionpack/lib/action_dispatch/middleware/s tatic.rb:16:in `initialize' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/gem s/heroku-deflater-0.5.3/lib/heroku-deflater/serve_zipped_assets.rb:15:in `new' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/gem s/heroku-deflater-0.5.3/lib/heroku-deflater/serve_zipped_assets.rb:15:in `initialize' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/bun dler/gems/rails-0ef7e73f0af7/actionpack/lib/action_dispatch/middleware/s tack.rb:43:in `new' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/bun dler/gems/rails-0ef7e73f0af7/actionpack/lib/action_dispatch/middleware/s tack.rb:43:in `build' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/bun dler/gems/rails-0ef7e73f0af7/actionpack/lib/action_dispatch/middleware/s tack.rb:118:in `block in build' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/bun dler/gems/rails-0ef7e73f0af7/actionpack/lib/action_dispatch/middleware/s tack.rb:118:in `each' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/bun dler/gems/rails-0ef7e73f0af7/actionpack/lib/action_dispatch/middleware/s tack.rb:118:in `inject' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/bun dler/gems/rails-0ef7e73f0af7/actionpack/lib/action_dispatch/middleware/s tack.rb:118:in `build' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/bun dler/gems/rails-0ef7e73f0af7/railties/lib/rails/engine.rb:509:in `app' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/bun dler/gems/rails-0ef7e73f0af7/railties/lib/rails/application/finisher.rb: 34:in `block in <module:Finisher>' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/bun dler/gems/rails-0ef7e73f0af7/railties/lib/rails/initializable.rb:30:in `instance_exec' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/bun dler/gems/rails-0ef7e73f0af7/railties/lib/rails/initializable.rb:30:in `run' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/bun dler/gems/rails-0ef7e73f0af7/railties/lib/rails/initializable.rb:55:in `block in run_initializers' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/bun dler/gems/rails-0ef7e73f0af7/railties/lib/rails/initializable.rb:54:in `run_initializers' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/vendor/bundle/ruby/2.2.0/bun dler/gems/rails-0ef7e73f0af7/railties/lib/rails/application.rb:352:in `initialize!' remote: /tmp/build_a3b8845b716508af12d99859d1a58c5c/config/environment.rb:5:in `<top (required)>'
* config.static_index configures directory index "index.html" filenameEliot Sykes2015-05-281-4/+5
| | | | | | Set `config.static_index` to serve a static directory index file not named `index`. For example, to serve `main.html` instead of `index.html` for directory requests, set `config.static_index` to `"main"`.
* Tiny documentation edits [ci skip]Robin Dupret2015-05-041-1/+1
| | | | | | * Fix a few typos * Wrap lines to 80 chars * Use `+` instead of `<tt>`
* [ci skip] Add, clean up docs in ActionDispatch ActionDispatch middlewareNick Cox2015-04-221-6/+13
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* [Rails4 regression] prevent thin and puma cause error in Non ASCII URL on ↵Toshi MARUYAMA2015-04-091-1/+1
| | | | | | | | | | | | | | | | | | | Windows * https://github.com/rails/rails/issues/19187 * https://github.com/rails/rails/pull/19533 * https://github.com/macournoyer/thin/issues/268 These are serious Rails 4 regression for Redmine Bitnami Windows users. https://community.bitnami.com/t/problems-with-3-0-1-installation-see-report-inside/30195/ It is not caused on webrick users. Related: * https://github.com/rack/rack/issues/732#issuecomment-67677272 * https://github.com/phusion/passenger/issues/1328
* Also skip Content-Encoding and Vary header if 304Kohei Suzuki2015-03-121-3/+4
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* 304 response should not include Content-Type headerKohei Suzuki2015-03-101-1/+3
| | | | | Rack::Lint raises an error saying "Content-Type header found in 304 response, not allowed".
* Reduce the number of times `#clean_path_info` is calledeileencodes2015-02-181-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | It's unnecessary to call `#clean_path_info`. It doesn't need to be called on the path with each extension. This reduces allocations to `Rack::Utils` in integration tests. Before `#clean_path_info` from `Rack::Utils` (line 622) was number 2 in top 5 allocations: ``` [["rack/lib/rack/utils.rb", 499, :T_STRING], [51034, 4539, 71559, 0, 12, 1791120]] [["rack/lib/rack/utils.rb", 662, :T_STRING], [33012, 0, 27930, 0, 1, 1226009]] [["rails/activesupport/lib/active_support/notifications/fanout.rb", 55, :T_DATA], [29998, 0, 25380, 0, 1, 3230600]] [["rails/activesupport/lib/active_support/subscriber.rb", 99, :T_STRING], [29996, 0, 25378, 0, 2, 1113840]] [["rails/activesupport/lib/active_support/notifications/instrumenter.rb", 52, :T_HASH], [29994, 147, 27014, 0, 11, 4897784]] ``` After `#clean_path_info` from `Rack::Utils` (line 622) does not appear in the top 5 highest allocations: ``` [["rack/lib/rack/utils.rb", 499, :T_STRING], [47617, 2414, 68969, 0, 12, 1667360]] [["rack/lib/rack/body_proxy.rb", 34, :T_ARRAY], [28230, 0, 26060, 0, 1, 1046800]] [["rails/activesupport/lib/active_support/notifications/fanout.rb", 55, :T_DATA], [28208, 0, 26042, 0, 1, 3034096]] [["rails/activesupport/lib/active_support/subscriber.rb", 99, :T_STRING], [28204, 0, 26040, 0, 1, 1046080]] [["rails/activesupport/lib/active_support/callbacks.rb", 165, :T_DATA], [28200, 0, 26046, 0, 2, 3451800]] ```
* FileHandler should not be called for files outside the rootAaron Patterson2014-10-101-2/+12
| | | | | FileHandler#matches? should return false for files that are outside the "root" path.
* Refactor out Dir.glob from ActionDispatch::Staticschneems2014-08-271-20/+5
| | | | | | | | Dir.glob can be a security concern. The original use was to provide logic of fallback files. Example a request to `/` should render the file from `/public/index.html`. We can replace the dir glob with the specific logic it represents. The glob {,index,index.html} will look for the current path, then in the directory of the path with index file and then in the directory of the path with index.html. This PR replaces the glob logic by manually checking each potential match. Best case scenario this results in one less file API request, worst case, this has one more file API request. Related to #16464 Update: added a test for when a file of a given name (`public/bar.html` and a directory `public/bar` both exist in the same root directory. Changed logic to accommodate this scenario.
* Address comments on Gzip implementationschneems2014-08-241-10/+19
| | | | | | | | | | | | | | | - don't mutate PATH_INFO in env, test - test fallback content type matches Rack::File - change assertion style - make HTTP_ACCEPT_ENCODING comparison case insensitive - return gzip path from method instead of true/false so we don't have to assume later - don't allocate un-needed hash. Original comments: https://github.com/rails/rails/commit/ cfaaacd9763642e91761de54c90669a88d772e5a#commitcomment-7468728 cc @jeremy
* Enable gzip compression by defaultschneems2014-08-201-14/+40
| | | | | | If someone is using ActionDispatch::Static to serve assets and makes it past the `match?` then the file exists on disk and it will be served. This PR adds in logic that checks to see if the file being served is already compressed (via gzip) and on disk, if it is it will be served as long as the client can handle gzip encoding. If not, then a non gzip file will be served. This additional logic slows down an individual asset request but should speed up the consumer experience as compressed files are served and production applications should be delivered with a CDN. This PR allows a CDN to cache a gzip file by setting the `Vary` header appropriately. In net this should speed up a production application that are using Rails as an origin for a CDN. Non-asset request speed is not affected in this PR.
* [ci skip] Document ActionDispatch::Staticschneems2014-08-051-0/+9
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* [ci skip] document ActionDispatch::FileHandlerschneems2014-08-051-0/+10
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* Fix Encoding::CompatibilityError when public path is UTF-8Andrew White2013-12-291-3/+3
| | | | | | | | | | | | | | In #5337 we forced the path encoding to ASCII-8BIT to prevent static file handling from blowing up before an application has had chance to deal with possibly invalid urls. However this has a negative side effect of making it an incompatible encoding if the application's public path has UTF-8 characters in it. To work around the problem we check to see if the path has a valid encoding once it has been unescaped. If it is not valid then we can return early since it will not match any file anyway. Fixes #13518
* Fix regression introduced in pull request 8812Sam Ruby2013-01-111-1/+2
| | | | See https://github.com/rails/rails/pull/8812#commitcomment-2416514
* Eliminate Rack::File headers deprecation warningSam Ruby2013-01-081-1/+1
| | | | | | | | | | | | See http://intertwingly.net/projects/AWDwR4/checkdepot/section-6.1.html rake test produces: "Rack::File headers parameter replaces cache_control after Rack 1.5." Despite what the message says, it appears that the hearders parameter change will be effective as of Rack 1.5: https://github.com/rack/rack/blob/rack-1.4/lib/rack/file.rb#L24 https://github.com/rack/rack/blob/master/lib/rack/file.rb#L24
* Revert "Invert precedence of content in ActionDispatch::Static"Andrew White2012-12-071-11/+7
| | | | This reverts commit c59734f756b79c39486c45273d2cc5d42cd0c864.
* Invert precedence of content in ActionDispatch::StaticAndrew White2012-12-061-7/+11
| | | | | | | | | | This commit inverts the precedence in ActionDispatch::Static so that dynamic content will be served before static content. This is so that precompiled assets do not inadvertently get included when running in development mode - it should have no effect in production where static files are usually handled by the web server. Closes #6421
* rename page_cache_extension option to default_static_extensionFrancesco Rodriguez2012-10-031-1/+1
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* fix ArgumentError being raised in case of invalid byte sequencesMichael Reinsch2012-03-081-0/+1
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* Simplify regexpAndrew White2012-02-171-1/+1
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* Fix ActionDispatch::Static to serve files with unencoded PCHARAndrew White2012-02-171-1/+10
| | | | | | | | | | | RFC 3986[1] allows sub-delim characters in path segments unencoded, however Rack::File requires them to be encoded so we use URI's unescape method to leave them alone and then escape them again. Also since the path gets passed to Dir[] we need to escape any glob characters in the path. [1]: http://www.ietf.org/rfc/rfc3986.txt
* escape static file path to prevent double unescapingSergey Nartimov2012-02-161-1/+1
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* cache strings in the AST for faster comparison than include?Aaron Patterson2011-05-031-6/+3
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* Static middleware accepts cache control.José Valim2011-05-031-4/+4
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* Make static faster as we don't have to serve multiple paths anymore.José Valim2011-04-151-28/+15
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* initialize ivarsAaron Patterson2011-03-011-1/+1
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* Revert "compute ext in initialize, and use an attr_reader"Aaron Patterson2011-02-281-5/+7
| | | | | | | | This reverts commit 2dbb73bdda3b81947fd112486ac4285fb1a6e3a9. Conflicts: actionpack/lib/action_dispatch/middleware/static.rb
* no need to pass a regex to Regexp.compileAaron Patterson2011-02-281-4/+4
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* compute ext in initialize, and use an attr_readerAaron Patterson2011-02-281-7/+5
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* Ensure the proper content type is returned for static files.José Valim2010-10-041-3/+3
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* Avoid (@_var ||= nil) pattern by using initialize methods and ensuring ↵José Valim2010-09-291-2/+1
| | | | everyone calls super as expected.
* Initialize @compiled_at if it is not.Emilio Tagua2010-09-281-0/+1
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* Do not use ActionController::Base.page_cache_extension in initialize to not ↵Piotr Sarnacki2010-09-041-4/+8
| | | | load more ActiveSupport than we need
* Optimize ActionDispatch::StaticPiotr Sarnacki2010-09-041-51/+35
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* Modified ActionDispatch::Static to allow passing multiple rootsPiotr Sarnacki2010-09-031-10/+50
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* Move Rails::Static into ActionDispatchJoshua Peek2009-09-261-0/+44
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