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[DependencyInjection] Add Enum Env Var Processor #46564

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Merged
merged 1 commit into from
Jun 27, 2022
Merged

[DependencyInjection] Add Enum Env Var Processor #46564

merged 1 commit into from
Jun 27, 2022

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jack-worman
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@jack-worman jack-worman commented Jun 2, 2022 •
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Q A
Branch? 6.2
Bug fix? no
New feature? yes
Deprecations? no
Tickets N/A
License MIT
Doc PR waiting on approval of feature

Add the ability to transform env variables into \BackedEnums.

For example, you could now autowire an enum from an environment variable:

<?php

use Symfony\Component\DependencyInjection\Attribute\Autowire;

enum AppEnv: string {
   case Test = 'test';
   case Dev = 'dev';
   case Stage = 'stage';
   case Prod = 'prod';
}

class Foo {
    public function __construct(
        #[Autowire('%env(enum:'.AppEnv::class.':APP_ENV)%')]
        private AppEnv $appEnv,
    ) {}
}

@carsonbot carsonbot added this to the 6.2 milestone Jun 2, 2022
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Hey!

I think @ruudk has recently worked with this code. Maybe they can help review this?

Cheers!

Carsonbot

@nicolas-grekas
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This might miss some pieces as I think some regexps like this one might prevent using FQCN in %env()% parameters:

symfony/src/Symfony/Component/DependencyInjection/ParameterBag/EnvPlaceholderParameterBag.php

Line 47 in bbf25d6

if (!preg_match('/^(?:[-.\w]*+:)*+\w++$/', $env)) {

@nicolas-grekas
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Please update the description of the PR to make it clear what you're proposing. I could guess by looking at the tests, but providing a proper PR description is nonetheless a good thing to help ppl understand what this is about, and start the doc later on.

@nicolas-grekas
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A next step could be to find a way to make autowiring do its part, so that the enum: prefix wouldn't be needed.
But that's for another PR :)

👍

@nicolas-grekas
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nicolas-grekas commented Jun 27, 2022 •
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Can you please rebase on latest 6.2? We don't merge PRs with merge commits. If you want to squash while doing so, please do (we'll do it when merging otherwise.)

@jack-worman
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Rebase and squash is done!

@nicolas-grekas
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Thank you @jack-worman.

@nicolas-grekas nicolas-grekas mentioned this pull request Jun 27, 2022
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@nicolas-grekas nicolas-grekas merged commit 308652c into symfony:6.2 Jun 27, 2022
@jack-worman jack-worman deleted the EnumEnvVarProcessor branch June 27, 2022 18:49
@fabpot fabpot mentioned this pull request Oct 24, 2022
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@nicolas-grekas nicolas-grekas mentioned this pull request Dec 6, 2022
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@nicolas-grekas nicolas-grekas nicolas-grekas approved these changes

@stof stof stof approved these changes

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4 participants
@jack-worman @carsonbot @nicolas-grekas @stof