feat: add option to skip composer install

Dockerfile

@@ -206,7 +206,7 @@ COPY --link --chmod=755 <<EOF /entrypoint.sh
 #!/usr/bin/env sh
 set -e
 
-(test "\$GITHUB_ACTIONS" = "true" || test "\$CI" = "true") && test -f composer.json && composer install --no-scripts --no-progress --quiet
+(test "\$GITHUB_ACTIONS" = "true" || test "\$CI" = "true") && (test "\$SKIP_COMPOSER_INSTALL" != "true") && test -f composer.json && composer install --no-scripts --no-progress --quiet
 
 exec "\$@"
 EOF

docs/cookbook/README.md

@@ -12,3 +12,4 @@ Here you will find a list of tips & tricks that are too long to be put in the ma
 - [Bitbucket Pipelines](bitbucket-pipelines.md)
 - [Gitlab CI](gitlab-ci.md)
 - [Starter Kits](starter-kits.md)
+- [Options](options.md)

docs/cookbook/github-actions.md

@@ -24,6 +24,8 @@ jobs:
         uses: docker://jakzal/phpqa:php8.2-alpine
         with:
           args: php-cs-fixer --dry-run --allow-risky=yes --no-interaction --ansi fix
+        env:
+          SKIP_COMPOSER_INSTALL: true
       - name: Deptrac
         uses: docker://jakzal/phpqa:php8.2-alpine
         with:

docs/cookbook/gitlab-ci.md

@@ -14,6 +14,8 @@ stages:
 php-cs-fixer:
     stage: style
     image: jakzal/phpqa:php8.2-alpine
+    variables:
+      SKIP_COMPOSER_INSTALL: true
     script:
         - php-cs-fixer fix --dry-run --stop-on-violation
 
@@ -23,4 +25,3 @@ phpstan:
     script:
       - phpstan analyze
 ```
-

docs/cookbook/options.md

@@ -0,0 +1,9 @@
+# Options
+
+*Contributed by [alexislefebvre](https://github.com/alexislefebvre).*
+
+For tools that don’t require Composer dependencies, e.g. `php-cs-fixer`,
+you can skip the automatic `composer install` <sup>(1)</sup>
+by defining the value `SKIP_COMPOSER_INSTALL` to `true` (it’s a string).
+
+<sup>(1)</sup> it’s configured in the [`Dockerfile`](https://github.com/jakzal/phpqa/blob/master/Dockerfile).