mirror of
https://github.com/Homebrew/brew.git
synced 2025-07-14 16:09:03 +08:00
c5dbd3ca24
This improves the load time of most brew commands. For an example of
one of the simplest commands this speeds up:
Without Bootsnap:
```
$ hyperfine 'git checkout master; brew help' 'git checkout optimise_requires; brew help'
Benchmark 1: git checkout master; brew help
Time (mean ± σ): 525.0 ms ± 35.8 ms [User: 229.9 ms, System: 113.1 ms]
Range (min … max): 465.3 ms … 576.6 ms 10 runs
Benchmark 2: git checkout optimise_requires; brew help
Time (mean ± σ): 383.3 ms ± 25.1 ms [User: 133.0 ms, System: 72.1 ms]
Range (min … max): 353.0 ms … 443.6 ms 10 runs
Summary
git checkout optimise_requires; brew help ran
1.37 ± 0.13 times faster than git checkout master; brew help
```
With Bootsnap:
```
$ hyperfine 'git checkout master; brew help' 'git checkout optimise_requires; brew help'
Benchmark 1: git checkout master; brew help
Time (mean ± σ): 386.0 ms ± 30.9 ms [User: 130.2 ms, System: 93.8 ms]
Range (min … max): 359.5 ms … 469.3 ms 10 runs
Benchmark 2: git checkout optimise_requires; brew help
Time (mean ± σ): 330.2 ms ± 32.4 ms [User: 93.4 ms, System: 73.0 ms]
Range (min … max): 302.9 ms … 413.9 ms 10 runs
Summary
git checkout optimise_requires; brew help ran
1.17 ± 0.15 times faster than git checkout master; brew help
```
80 lines
1.8 KiB
Ruby
80 lines
1.8 KiB
Ruby
# typed: true
|
|
# frozen_string_literal: true
|
|
|
|
require "macos_version"
|
|
|
|
module Homebrew
|
|
# Helper module for simulating different system configurations.
|
|
class SimulateSystem
|
|
class << self
|
|
attr_reader :arch, :os
|
|
|
|
sig {
|
|
type_parameters(:U).params(
|
|
os: Symbol,
|
|
arch: Symbol,
|
|
_block: T.proc.returns(T.type_parameter(:U)),
|
|
).returns(T.type_parameter(:U))
|
|
}
|
|
def with(os: T.unsafe(nil), arch: T.unsafe(nil), &_block)
|
|
raise ArgumentError, "At least one of `os` or `arch` must be specified." if !os && !arch
|
|
|
|
old_os = self.os
|
|
old_arch = self.arch
|
|
|
|
begin
|
|
self.os = os if os && os != current_os
|
|
self.arch = arch if arch && arch != current_arch
|
|
|
|
yield
|
|
ensure
|
|
@os = old_os
|
|
@arch = old_arch
|
|
end
|
|
end
|
|
|
|
sig { params(new_os: Symbol).void }
|
|
def os=(new_os)
|
|
os_options = [:macos, :linux, *MacOSVersion::SYMBOLS.keys]
|
|
raise "Unknown OS: #{new_os}" unless os_options.include?(new_os)
|
|
|
|
@os = new_os
|
|
end
|
|
|
|
sig { params(new_arch: Symbol).void }
|
|
def arch=(new_arch)
|
|
raise "New arch must be :arm or :intel" unless OnSystem::ARCH_OPTIONS.include?(new_arch)
|
|
|
|
@arch = new_arch
|
|
end
|
|
|
|
sig { void }
|
|
def clear
|
|
@os = @arch = nil
|
|
end
|
|
|
|
sig { returns(T::Boolean) }
|
|
def simulating_or_running_on_macos?
|
|
[:macos, *MacOSVersion::SYMBOLS.keys].include?(os)
|
|
end
|
|
|
|
sig { returns(T::Boolean) }
|
|
def simulating_or_running_on_linux?
|
|
os == :linux
|
|
end
|
|
|
|
sig { returns(Symbol) }
|
|
def current_arch
|
|
@arch || Hardware::CPU.type
|
|
end
|
|
|
|
sig { returns(Symbol) }
|
|
def current_os
|
|
os || :generic
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
require "extend/os/simulate_system"
|