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Fabien Potencier c927c481aa bug #25255 [Console][DI] Fail gracefully (nicolas-grekas)
This PR was merged into the 3.4 branch.

Discussion
----------

[Console][DI] Fail gracefully

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | https://github.com/symfony/flex/issues/212, #25280
| License       | MIT
| Doc PR        | -

I already experienced this issue a few times without spending time digging it:
sometimes, you call `cache:clear`, and the command quits without any output, and with 255 status code.

The reason is the `@include` in `Kernel`, which makes everything silent, especially fatal errors (thanks PHP...)
So if the to-be-removed container is broken for some fatal reason, the failure is really bad.

To fix that, here are two measures:
- use `include_once` instead of `require_once` in the dumped container: that's OK there to actually not immediately load the file, any hard failure will happen later anyway, and any soft failure will allow the `cache:clear` command to complete (like when you remove a package)
- register `Application::renderException()` as the main PHP exception handler, via `Debug::ErrorHandler` when it's available

End result when it fails:
![image](https://user-images.githubusercontent.com/243674/33494543-e1d07202-d6c3-11e7-9677-bc2ae72fbba9.png)

instead of a blank output.

Commits
-------

4a5a3f52ab [Console][DI] Fail gracefully
2017-12-02 15:04:03 -08:00
.composer Drop hirak/prestissimo 2016-05-12 07:44:15 -05:00
.github Update github PR template 2017-11-22 09:34:48 +01:00
src/Symfony bug #25255 [Console][DI] Fail gracefully (nicolas-grekas) 2017-12-02 15:04:03 -08:00
.editorconfig Add EditorConfig File 2012-06-16 14:08:15 +02:00
.gitignore Add appveyor.yml for C.I. on Windows 2015-08-25 23:41:37 +02:00
.php_cs.dist Merge branch '2.8' into 3.3 2017-09-15 10:08:21 -07:00
.travis.yml Merge branch '2.8' into 3.3 2017-10-10 12:12:32 +02:00
appveyor.yml Merge branch '2.7' into 2.8 2017-09-06 18:32:38 +02:00
CHANGELOG-3.0.md Merge branch '2.8' into 3.1 2016-08-05 10:37:39 +02:00
CHANGELOG-3.1.md updated CHANGELOG for 3.1.9 2017-01-12 12:43:31 -08:00
CHANGELOG-3.2.md updated CHANGELOG for 3.2.13 2017-08-01 11:40:12 +02:00
CHANGELOG-3.3.md updated CHANGELOG for 3.3.13 2017-11-16 19:14:38 +01:00
CHANGELOG-3.4.md updated CHANGELOG for 3.4.0 2017-11-30 08:55:59 -08:00
composer.json Merge branch '2.7' into 2.8 2017-11-21 10:57:39 +01:00
CONTRIBUTING.md Mention the community review guide 2016-12-18 22:02:35 +01:00
CONTRIBUTORS.md update CONTRIBUTORS for 2.7.36 2017-11-10 11:42:39 -08:00
LICENSE updated LICENSE year 2017-01-02 12:30:00 -08:00
link Add a "link" script to ease debugging Flex apps 2017-11-20 22:18:44 +01:00
phpunit Force phpunit-bridge update (bis) 2017-11-22 10:25:38 +01:00
phpunit.xml.dist Merge branch '3.2' 2017-04-12 07:14:56 -07:00
README.md Fix minor typo in the main README.md 2017-04-27 20:23:38 +02:00
UPGRADE-3.0.md Fixed formatting in Security section 2017-04-14 11:38:02 +02:00
UPGRADE-3.1.md [Serializer] Remove AbstractObjectNormalizer::isAttributeToNormalize 2016-12-08 16:02:32 +01:00
UPGRADE-3.2.md [DI] Check for privates before shared services 2017-05-23 19:58:02 +02:00
UPGRADE-3.3.md Merge branch '3.3' into 3.4 2017-11-30 15:59:23 +01:00
UPGRADE-3.4.md fixed typo 2017-11-13 19:06:49 +01:00
UPGRADE-4.0.md Merge branch '3.3' into 3.4 2017-11-30 15:59:23 +01:00

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