关于无效的Unicode转义的厨师投诉

时间:2015-10-07 03:11:10

标签: ruby string chef

我想在.bash_profile

中设置以下内容
bash_profile_content = %Q(
export EDITOR=vi
export ENV=#{role}
export PATH=$PATH:/usr/local/bin
export PS1="${debian_chroot:+($debian_chroot)}\u@\h:\w [$ENV]\$ "
)

file '/home/me/.bash_profile' do
    cotent bash_profile_conent
end

Chef抛出此错误:

==> Server-002: [2015-10-07T03:02:23+00:00] ERROR: Exception handlers complete
==> Server-002: Chef Client failed. 0 resources updated in 322.419863736 seconds
==> Server-002: [2015-10-07T03:02:23+00:00] FATAL: Stacktrace dumped to /var/chef/cache/chef-stacktrace.out
==> Server-002: [2015-10-07T03:02:23+00:00] ERROR: /var/chef/cache/cookbooks/servers/recipes/_common_user.rb:67: invalid Unicode escape
==> Server-002: ...ian_chroot:+($debian_chroot)}\u@\h:\w [$ENV]\$ "
==> Server-002: ...   

显然,厨师认为@字符是用于unicode逃脱的。

我想按原样使用@。我该如何解决这个错误?

1 个答案:

答案 0 :(得分:3)

这不是真正的问题,\u是。例如:

irb > "\u@"
SyntaxError: (irb):1: invalid Unicode escape
"\u@"
   ^

但:

irb > "\u0611"
 => "ؑ" 

请记住,%Q(...)的行为类似于双引号字符串,因此适用所有常用的转义符(例如Unicode的\u)。添加更多反斜杠应该解决问题:

bash_profile_content = %Q(
export EDITOR=vi
export ENV=#{role}
export PATH=$PATH:/usr/local/bin
export PS1="${debian_chroot:+($debian_chroot)}\\u@\\h:\\w [$ENV]\\$ "
)