feature symfony#1070 Fix dump-env command when .env files reference o…

…ther env vars (nicolas-grekas)

This PR was merged into the 2.x branch.

Discussion
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Fix dump-env command when .env files reference other env vars

At the moment, running `composer dump-env` on a 7.4 project generates a broken `APP_SHARE_DIR`.
The reason is that since symfony/recipes#1465 we define that var as `"$APP_PROJECT_DIR/var/share"`
Yet, when the command runs, all env vars are emptied to make the result context-free.

This fixes it by hooking into calls to the `getenv()` function.

Commits
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ed41273 Fix dump-env command when .env files reference other env vars

minor symfony#1068 Leverage COMPOSER_PREFER_DEV_OVER_PRERELEASE when …

…possible (nicolas-grekas)

This PR was merged into the 2.x branch.

Discussion
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Leverage COMPOSER_PREFER_DEV_OVER_PRERELEASE when possible

This leverages composer/composer#12585

The code added in symfony#1066 remains as a fallback.

Commits
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cc37c66 Leverage COMPOSER_PREFER_DEV_OVER_PRERELEASE when possible

Create tag 2.8.2

Create tag 2.8.1

Create tag 2.8.0

bug symfony#1054 Don't remove still-referenced files when unconfiguri…

…ng recipes (nicolas-grekas)

This PR was merged into the 2.x branch.

Discussion
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Don't remove still-referenced files when unconfiguring recipes

Instead of symfony#706
Fixes broken logic added in symfony#451, which didn't account for folders.
The new logic uses only the symfony.lock file and not the recipe anymore to decide which files to remove.

Commits
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6443e31 Don't remove still-referenced files when unconfiguring recipes

Fix flex upgrades

Create tag 2.6.0

Create tag 2.5.1

Create tag 2.5.0