Capistrano任务中的bundle config无法找到Gemfile

Question

我正在尝试添加配置参数,deploy.rb以便pggem正确构建:

before "bundle:install" do
  run "ls -l #{fetch(:latest_release)}/Gemfile"
  run "bundle config  --local --gemfile=#{fetch(:latest_release)}/Gemfile build.pg --with-pg-config=/usr/pgsql-9.1/bin/pg_config"
end

在输出中,添加的诊断代码清楚地显示了非空Gemfile的存在:

  * executing `bundle:install'
    triggering before callbacks for `bundle:install'
  * executing "ls -l /apps/my_app/releases/20121008195429/Gemfile"
    servers: ["my_server.com"]
    [my_server.com] executing command
 ** [out :: my_server.com] -rw-r--r-- 1 webapp webapp 1291 Oct  5 22:34 /apps/my_app/releases/20121008195429/Gemfile
    command finished in 157ms
  * executing "bundle config  --local --gemfile=/apps/my_app/releases/20121008195429/Gemfile build.pg --with-pg-config=/usr/pgsql-9.1/bin/pg_config"
    servers: ["my_server.com"]
    [my_server.com] executing command
 ** [out :: my_server.com] Could not locate Gemfile

如果我使用--global副词,我会得到相同的结果--local.如果我删除global/ localflag,我会得到一个不同的错误:

** [out :: my_server.com] Invalid scope --gemfile=/apps/my_app/releases/20121008194937/Gemfile given. Please use --local or --global.

似乎全局配置或上下文使情况混乱.我怎么能bundle config看到我的Gemfile？有一个更好的方法吗？

Answer 1

与命令中--gemfile使用的标志相反bundle install,标志bundle config仅标识Gemfile 的名称:

# man bundle-config
...
gemfile (BUNDLE_GEMFILE)
The name of the file that bundler should use as the Gemfile. This location of this file
also sets the root of the project, which is used to resolve relative paths in the Gemfile,
among other things. By default, bundler will search up from the current working directory
until it finds a Gemfile.

我首先通过cd到该目录修复了这个问题:

run "cd #{fetch(:latest_release)} && bundle config build.pg --with-pg-config=/usr/pgsql-9.1/bin/pg_config"

更多信息:http: //gembundler.com/man/bundle-install.1.html&http://gembundler.com/man/bundle-config.1.html