fix: escape repo string with Regexp.quote

[mickaelpham]

Overview

Use Regexp::quote method to escape the @repo variable when checking if the remote deploy repository exists in the git_push method.

Problem

• Deploying my personal website with gandi.net who offers a GIT access for Simple Hosting (one of their hosting solution).
• They use ssh+git:// as their protocol to access the remote repository (do not ask me why...)
• The remote repository URL ends up looking like:
  ssh+git://{login}@git.{datacenter_location}.gpaas.net/{vhost}.git
• Because of the + character, there are no matches in regular expression in the git_push method and the deploy fails.

  Workaround

• After creating the remote repository and failing the deploy a first time, I escape the + character in my _deploy.yml file:
  ssh\+git://{login}@git.{datacenter_location}.gpaas.net/{vhost}.git
• I can then retry the deploy and it works.
• Alternative: I can also enter the .deploy/ directory and do a git push deploy master from there.

  Proposed Solution

Use Regexp::quote to escape the @repo variable, which is the most likely to contain a character with a special meaning in a regular expression like it was in my case.

[imathis]

Thanks for the thorough explanation! :+1: PRs like this one are aces.

[imathis]

I've just released 1.2.8 with this fix. Thanks again!

[mickaelpham]

You are welcome. Keep rocking with Octopress!