包安装两次。

Question

包安装在Mac上运行了两次

➜  k_rails_template git:(main) ✗ bundle install
Using Local GEMs
Using Local GEMs <----
Fetching gem metadata from https://rubygems.org/...........
Fetching gem metadata from https://rubygems.org/...........  <----
Resolving dependencies....
Using rake 12.3.3
.
.
.

我已经检查了各种.zsh配置，以确定是否发生了什么事情，并且我已经使用asdf重新安装了一个新的Ruby2.7.6。

我手动检查了这些文件，以确定是否有问题。

• .zshenv
• .zprofile
• .zshrc

Gem文件

# frozen_string_literal: true

source 'https://rubygems.org'

gemspec

puts 'Using Local GEMs'

group :development, :test do
  gem 'guard-bundler'
  gem 'guard-rspec'
  gem 'guard-rubocop'
  gem 'rake', '~> 12.0'
  gem 'rake-compiler', require: false
  gem 'rspec', '~> 3.0'
  gem 'rubocop'
  gem 'rubocop-rake', require: false
  gem 'rubocop-rspec', require: false
end

group :test do
  gem 'simplecov', require: false
end

gem env

gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 3.1.6
  - RUBY VERSION: 2.7.6 (2022-04-12 patchlevel 219) [x86_64-darwin21]
  - INSTALLATION DIRECTORY: /Users/xmen/.asdf/installs/ruby/2.7.6/lib/ruby/gems/2.7.0
  - USER INSTALLATION DIRECTORY: /Users/xmen/.gem/ruby/2.7.0
  - RUBY EXECUTABLE: /Users/xmen/.asdf/installs/ruby/2.7.6/bin/ruby
  - GIT EXECUTABLE: /usr/local/bin/git
  - EXECUTABLE DIRECTORY: /Users/xmen/.asdf/installs/ruby/2.7.6/bin
  - SPEC CACHE DIRECTORY: /Users/xmen/.gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /Users/xmen/.asdf/installs/ruby/2.7.6/etc
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-darwin-21
  - GEM PATHS:
     - /Users/xmen/.asdf/installs/ruby/2.7.6/lib/ruby/gems/2.7.0
     - /Users/xmen/.gem/ruby/2.7.0
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
     - "gem" => "--no-document"
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - /Users/xmen/.asdf/installs/ruby/2.7.6/bin
     - /usr/local/opt/openssl@1.1/bin
     - /Users/xmen/.asdf/shims
     - /Users/xmen/.asdf/bin
     - /usr/local/bin
     - /usr/bin
     - /bin
     - /usr/sbin
     - /sbin
     - /usr/local/go/bin
     - /usr/local/MacGPG2/bin
     - /usr/local/share/dotnet
     - ~/.dotnet/tools
     - /Library/Apple/usr/bin
     - /Library/Frameworks/Mono.framework/Versions/Current/Commands
     - /Users/xmen/Library/Python/3.9/bin
     - /Users/xmen/.dotnet/tools
     - /Users/xmen/.gem/ruby/2.7.0/bin
     - /usr/local/opt/fzf/bin

Answer 1

bundle install不会运行两次。第二次获取的是内部绑定逻辑。

# Gemfile

source "https://rubygems.org"
gem "guard-bundler"

例如，使用Bundlerv2.2.6，上面的Gemfile将使bundler运行两个获取请求。

Fetching gem metadata from https://rubygems.org/..............
Fetching gem metadata from https://rubygems.org/.

第二个请求来自双重检查逻辑：

https://github.com/rubygems/rubygems/blob/bundler-v2.2.6/bundler/lib/bundler/source/rubygems.rb#L261

令人惊讶的是，第二次获取是对邦德勒宝石本身的双重检查。这拉出请求固定，在v2.2.7中。

升级到bundler v2.2.7只发出一个请求。然而，随着更多的宝石在Gemfile中，将有更多的双重检查的邦德勒。我假设以后的版本也会有更多的性能/逻辑改进。

您可以看到为什么邦德勒使用--verbose选项运行第二个fetch：

$ bundle update --verbose
...
Double checking for ["bundler"] in rubygems repository https://rubygems.org/ or installed locally
Fetching gem metadata from https://rubygems.org/
Looking up gems ["bundler"]
...