Jenkins管道的相关输出：
+ gem env
RubyGems Environment:
- RUBYGEMS VERSION: 2.6.14
- RUBY VERSION: 2.4.2 (2017-09-14 patchlevel 198) [x86_64-darwin16]
- INSTALLATION DIRECTORY: /Users/jenkins/.rbenv/shims
- USER INSTALLATION DIRECTORY: /Users/jenkins/.gem/ruby/2.4.0
- RUBY EXECUTABLE: /usr/local/opt/ruby/bin/ruby
- EXECUTABLE DIRECTORY: /Users/jenkins/.rbenv/shims/bin
- SPEC CACHE DIRECTORY: /Users/jenkins/.gem/specs
- SYSTEM CONFIGURATION DIRECTORY: /usr/local/Cellar/ruby/2.4.2_1/etc
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-darwin-16
- GEM PATHS:
- /Users/jenkins/.rbenv/shims
- /Users/jenkins/.gem/ruby/2.4.0
- /usr/local/lib/ruby/gems/2.4.0
- /usr/local/Cellar/ruby/2.4.2_1/lib/ruby/gems/2.4.0
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :backtrace => false
- :bulk_threshold => 1000
- :sources => ["https://artifactory.xxx.com/artifactory/api/gems/gems/"]
- REMOTE SOURCES:
- https://artifactory.xxx.com/artifactory/api/gems/gems/
- SHELL PATH:
- /usr/local/bin
- /usr/bin
- /bin
- /usr/sbin
- /sbin
- /Users/jenkins/.rbenv/shims
- /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home
- /Users/jenkins/Library/Android/sdk
- /Users/jenkins/tools/sonar-scanner-2.7/bin
- /opt/apache-maven-3.5.3/bin
- /opt/gradle/gradle-3.4.1/bin
- /usr/local/lib/python2.7/bin
[Pipeline] sh
[App] Running shell script
+ rbenv install -s
[Pipeline] sh
[App] Running shell script
+ gem install bundler
Successfully installed bundler-1.16.3
Parsing documentation for bundler-1.16.3
Done installing documentation for bundler after 4 seconds
1 gem installed
[Pipeline] sh
[App] Running shell script
+ bundle install
Fetching gem metadata from http://rubygems.org/..........
RubyGems 2.0.14.1 is not threadsafe, so your gems will be installed one at a time. Upgrade to RubyGems 2.1.0 or higher to enable parallel gem installation.
Fetching CFPropertyList 3.0.0
sudo: no tty present and no askpass program specified
Bundler::SudoNotPermittedError: Bundler requires sudo access to install at the
moment. Try installing again, granting Bundler sudo access when prompted, or
installing into a different path.
An error occurred while installing CFPropertyList (3.0.0), and Bundler cannot
continue.
Make sure that `gem install CFPropertyList -v '3.0.0' --source
'http://rubygems.org/'` succeeds before bundling.
In Gemfile:
fastlane was resolved to 2.101.1, which depends on
simctl was resolved to 1.6.5, which depends on
CFPropertyList
我们可以看到安装目录不是系统路径，而是用户主目录下的路径。那么为什么bundle install导致了这一点：
sudo: no tty present and no askpass program specified
Bundler::SudoNotPermittedError: Bundler requires sudo access to install at the
moment. Try installing again, granting Bundler sudo access when prompted, or
installing into a different path.
An error occurred while installing CFPropertyList (3.0.0), and Bundler cannot
continue.