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Added json format, like this:
{
"Rails version": "6.0.0.alpha",
"Ruby version": "2.5.1-p57 (x86_64-darwin17)",
"RubyGems version": "2.7.6",
"Rack version": "2.0.6",
"JavaScript Runtime": "Node.js (V8)",
"Middleware": ["Rack::Sendfile", "ActionDispatch::Static", "ActionDispatch::Executor", "ActiveSupport::Cache::Strategy::LocalCache::Middleware", "Rack::Runtime", "Rack::MethodOverride", "ActionDispatch::RequestId", "ActionDispatch::RemoteIp", "Sprockets::Rails::QuietAssets", "Rails::Rack::Logger", "ActionDispatch::ShowExceptions", "WebConsole::Middleware", "ActionDispatch::DebugExceptions", "ActionDispatch::Reloader", "ActionDispatch::Callbacks", "ActiveRecord::Migration::CheckPending", "ActionDispatch::Cookies", "ActionDispatch::Session::CookieStore", "ActionDispatch::Flash", "ActionDispatch::ContentSecurityPolicy::Middleware", "Rack::Head", "Rack::ConditionalGet", "Rack::ETag", "Rack::TempfileReaper"],
"Application root": "/path/to/app",
"Environment": "development",
"Database adapter": "sqlite3",
"Database schema version": 0
}
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In Ruby 2.3 or later, `String#+@` is available and `+@` is faster than `dup`.
```ruby
# frozen_string_literal: true
require "bundler/inline"
gemfile(true) do
source "https://rubygems.org"
gem "benchmark-ips"
end
Benchmark.ips do |x|
x.report('+@') { +"" }
x.report('dup') { "".dup }
x.compare!
end
```
```
$ ruby -v benchmark.rb
ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-linux]
Warming up --------------------------------------
+@ 282.289k i/100ms
dup 187.638k i/100ms
Calculating -------------------------------------
+@ 6.775M (± 3.6%) i/s - 33.875M in 5.006253s
dup 3.320M (± 2.2%) i/s - 16.700M in 5.032125s
Comparison:
+@: 6775299.3 i/s
dup: 3320400.7 i/s - 2.04x slower
```
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Rails has some support for multiple databases but it can be hard to
handle migrations with those. The easiest way to implement multiple
databases is to contain migrations into their own folder ("db/migrate"
for the primary db and "db/seconddb_migrate" for the second db). Without
this you would need to write code that allowed you to switch connections
in migrations. I can tell you from experience that is not a fun way to
implement multiple databases.
This refactoring is a pre-requisite for implementing other features
related to parallel testing and improved handling for multiple
databases.
The refactoring here moves the class methods from the `Migrator` class
into it's own new class `MigrationContext`. The goal was to move the
`migrations_paths` method off of the `Migrator` class and onto the
connection. This allows users to do the following in their
`database.yml`:
```
development:
adapter: mysql2
username: root
password:
development_seconddb:
adapter: mysql2
username: root
password:
migrations_paths: "db/second_db_migrate"
```
Migrations for the `seconddb` can now be store in the
`db/second_db_migrate` directory. Migrations for the primary database
are stored in `db/migrate`".
The refactoring here drastically reduces the internal API for migrations
since we don't need to pass `migrations_paths` around to every single
method. Additionally this change does not require any Rails applications
to make changes unless they want to use the new public API. All of the
class methods from the `Migrator` class were `nodoc`'d except for the
`migrations_paths` and `migrations_path` getter/setters respectively.
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This reverts commit 3420a14590c0e6915d8b6c242887f74adb4120f9, reversing
changes made to afb66a5a598ce4ac74ad84b125a5abf046dcf5aa.
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[ci skip]
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Some case expressions remain, need to think about those ones.
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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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Thanks @egilburg.
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Given the recent security related patches to ruby and rails it is more
important than ever to know what patch level you are running.
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Dear Active Resource,
It's not that I hate you or anything, but you didn't get much attention lately. There're so many alternatives out there, and I think people have made their choice to use them than you. I think it's time for you to have a big rest, peacefully in this Git repository.
I will miss you,
@sikachu.
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[#5943 state:committed]
Signed-off-by: Santiago Pastorino <santiago@wyeworks.com>
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Signed-off-by: José Valim <jose.valim@gmail.com>
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Signed-off-by: José Valim <jose.valim@gmail.com>
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