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docs/macos/webserver/composer.md

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+# Composer:
+
+
+
+### Composer s'installe avec Homebrew :
+
+(nécessite php avec l'extension phar)
+
+```bash
+$ brew install composer
+
+$ php composer --version
+Composer version 1.6.3 2018-01-31 16:28:17
+```
+
+Fichier config:`~/.composer/config.json`
+
+
+
+### Pour installer une application:
+
+on se positionne dans son dossier où l'on trouve 2 fichiers:
+
+- composer.json
+- composer.lock
+
+```bash
+$ composer install
+
+# Sur DSM 6
+$ composer.phar install
+```
+
+
+
+Si erreur, mettre à jour:
+
+```bash
+Warning: The lock file is not up to date with the latest changes in composer.json. You may be getting outdated dependencies. Run update to update them.
+Your requirements could not be resolved to an installable set of packages.
+
+  Problem 1
+    - Installation request for friendsofphp/php-cs-fixer v2.2.6 -> satisfiable by friendsofphp/php-cs-fixer[v2.2.6].
+    - friendsofphp/php-cs-fixer v2.2.6 requires php ^5.3.6 || >=7.0 <7.2 -> your PHP version (7.2.3) does not satisfy that requirement.
+```
+
+
+
+### Pour mettre à jour:
+
+```bash
+$ composer update
+Loading composer repositories with package information
+Updating dependencies (including require-dev)
+Package operations: 62 installs, 0 updates, 0 removals
+
+- Installing symfony/process (v4.0.6): Downloading (100%)
+- Installing klaussilveira/gitter (0.2.0): Downloading (100%)
+
+### 
+
+Writing lock file
+Generating autoload files
+```
+
+Juste pour tester, aucune modification n'est faite:
+
+```bash
+$ composer update --dry-run --profile --verbose
+```
+
+### Liste des commandes
+
+```bash
+$ composer list
+```
+
+### Aide:
+
+```bash
+$ composer —help
+```
+
+### Affiche ce qui a été installé:
+
+```bash
+$ composer show
+```
+
+
+
+https://coderwall.com/p/ma_cuq/using-composer-to-manage-global-packages
+
+https://akrabat.com/global-installation-of-php-tools-with-composer/
+