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symfony/src/Symfony
Fabien Potencier 1e9e8afa5d bug #10479 [2.3][Process] Fix escaping on Windows (romainneutron)
This PR was merged into the 2.3 branch.

Discussion
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[2.3][Process] Fix escaping on Windows

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| License       | MIT

Windows escaping is broken since the last merges.

After digging more on Windows escaping, I realised some things:
 - We forbid environment variable expansion by escaping `%APPDATA%` to `^%"APPDATA"^%`
 - We explicitly ask for variable expansion at runtime (running the command line with the [`/V:ON`](https://github.com/symfony/symfony/blob/2.3/src/Symfony/Component/Process/Process.php#L235) flag). Running a command containing `!APPDATA!` will be escaped and expanded (our previous rule is easily overriden)
 - On platform that are not windows, we use strong escaping that prevents any variable expansion (`$PATH` will be escaped to `'$PATH'` that is not interpreted as the current PATH)

We have three possibilities:
 - Keep this behavior as this.
 - Prefer a consistent API and use a strong escaping strategy everywhere, but it would result in a BC break (see #8975).
 - Allow environment variable expansion and escape `%APPDATA%` to `"%APPDATA%"`

Any thoughts about this ?

Commits
-------

0f65f90 [Process] Fix escaping on Windows
2014-03-19 07:22:00 +01:00
..
Bridge changed some PHPUnit assertions to more specific ones 2014-03-01 18:25:29 +01:00
Bundle fixed CS 2014-03-17 16:43:11 +01:00
Component bug #10479 [2.3][Process] Fix escaping on Windows (romainneutron) 2014-03-19 07:22:00 +01:00