与foreman一起更改ruby版本

我需要使用foreman来运行多个Rails应用程序，这对于可以在foreman使用的相同Ruby版本上运行的Rails应用程序来说很好。但是，我有一个旧的Rails应用程序，它需要Ruby 1.8.6。我已经尝试了一些技巧，但没有成功：

old_web_app: /bin/bash --login -c "cd ../2.1 && rvm use 1.8.6 && script/server"

错误输出：

06:14:03 old_web_app.1 | started with pid 36499
06:14:03 old_web_app.1 | RVM is not a function, selecting rubies with 'rvm use ...' will not work.
06:14:03 old_web_app.1 |
06:14:03 old_web_app.1 | You need to change your terminal emulator preferences to allow login shell.
06:14:03 old_web_app.1 | Sometimes it is required to use `/bin/bash --login` as the command.
06:14:03 old_web_app.1 | Please visit https://rvm.io/integration/gnome-terminal/ for an example.
06:14:03 old_web_app.1 |
06:14:03 old_web_app.1 | script/server:2:in `require': cannot load such file -- script/../config/boot (LoadError)
06:14:03 old_web_app.1 |    from script/server:2:in `<main>'
06:14:03 old_web_app.1 | exited with code 1
06:14:03 system        | sending SIGTERM to all processes

但是，这也不起作用，并产生以下结果：

07:06:55 old_web_app.1         | started with pid 38387
07:06:56 old_web_app.1         | Using /Users/mwlang/.rvm/gems/ruby-1.8.6-p420
07:06:56 old_web_app.1         | /Users/mwlang/.rvm/gems/ruby-1.8.6-p420@global/gems/executable-hooks-1.3.2/lib/executable-hooks/regenerate_binstubs_command.rb:89: warning: parenthesize argument(s) for future version
07:06:56 old_web_app.1         | /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler/rubygems_integration.rb:366: warning: parenthesize argument(s) for future version
07:06:56 old_web_app.1         | /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler/settings.rb:159:in `[]': odd number of arguments for Hash (ArgumentError)
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler/settings.rb:159:in `load_config'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler/settings.rb:6:in `initialize'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler.rb:213:in `new'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler.rb:213:in `settings'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler.rb:398:in `configure_gem_home_and_path'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler.rb:90:in `configure'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler.rb:151:in `definition'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler.rb:116:in `setup'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler/setup.rb:17
07:06:56 old_web_app.1         | exited with code 1
07:06:56 system            | sending SIGTERM to all processes

---

单独在命令行上运行脚本是可行的，但在foreman中运行脚本则不行。

foreman设计用于运行与单个应用程序相关的多个进程，而不是运行多个应用程序。每个应用程序都应该有一个单独的

Procfile

，在运行foreman之前切换到相应的ruby版本。

这是一个权威性的答案吗？我有几个小应用程序可以一起工作，一起启动它们真的很好。在升级到另一个ruby版本后，我也遇到了这个问题

07:06:55 old_web_app.1         | started with pid 38387
07:06:56 old_web_app.1         | Using /Users/mwlang/.rvm/gems/ruby-1.8.6-p420
07:06:56 old_web_app.1         | /Users/mwlang/.rvm/gems/ruby-1.8.6-p420@global/gems/executable-hooks-1.3.2/lib/executable-hooks/regenerate_binstubs_command.rb:89: warning: parenthesize argument(s) for future version
07:06:56 old_web_app.1         | /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler/rubygems_integration.rb:366: warning: parenthesize argument(s) for future version
07:06:56 old_web_app.1         | /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler/settings.rb:159:in `[]': odd number of arguments for Hash (ArgumentError)
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler/settings.rb:159:in `load_config'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler/settings.rb:6:in `initialize'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler.rb:213:in `new'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler.rb:213:in `settings'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler.rb:398:in `configure_gem_home_and_path'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler.rb:90:in `configure'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler.rb:151:in `definition'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler.rb:116:in `setup'
07:06:56 old_web_app.1         |    from /Users/mwlang/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler/setup.rb:17
07:06:56 old_web_app.1         | exited with code 1
07:06:56 system            | sending SIGTERM to all processes