Update Composer, update everything

vendor/drupal-composer/drupal-scaffold/README.md

@@ -0,0 +1,121 @@
+# drupal-scaffold
+
+[![Build Status](https://travis-ci.org/drupal-composer/drupal-scaffold.svg?branch=master)](https://travis-ci.org/drupal-composer/drupal-scaffold)
+
+Composer plugin for automatically downloading Drupal scaffold files (like
+`index.php`, `update.php`, …) when using `drupal/core` via Composer.
+
+It is recommended that the vendor directory be placed in its standard location
+at the project root, outside of the Drupal root; however, the location of the
+vendor directory and the name of the Drupal root may be placed in whatever
+location suits the project.  Drupal-scaffold will generate the autoload.php
+file at the Drupal root to require the Composer-generated autoload file in the
+vendor directory.
+
+## Usage
+
+Run `composer require drupal-composer/drupal-scaffold:dev-master` in your composer
+project before installing or updating `drupal/core`.
+
+Once drupal-scaffold is required by your project, it will automatically update
+your scaffold files whenever `composer update` changes the version of
+`drupal/core` installed.
+
+## Configuration
+
+You can configure the plugin with providing some settings in the `extra` section
+of your root `composer.json`.
+
+```json
+{
+  "extra": {
+    "drupal-scaffold": {
+      "source": "https://cgit.drupalcode.org/drupal/plain/{path}?h={version}",
+      "excludes": [
+        "google123.html",
+        "robots.txt"
+      ],
+      "includes": [
+        "sites/default/example.settings.my.php"
+      ],
+      "initial": {
+        "sites/default/default.services.yml": "sites/default/services.yml",
+        "sites/default/default.settings.php": "sites/default/settings.php"
+      },
+      "omit-defaults": false
+    }
+  }
+}
+```
+The `source` option may be used to specify the URL to download the
+scaffold files from; the default source is drupal.org. The literal string
+`{version}` in the `source` option is replaced with the current version of
+Drupal core being updated prior to download.
+
+With the `drupal-scaffold` option `excludes`, you can provide additional paths
+that should not be copied or overwritten. The plugin provides no excludes by
+default.
+
+Default includes are provided by the plugin:
+```
+.csslintrc
+.editorconfig
+.eslintignore
+.eslintrc (Drupal <= 8.2.x)
+.eslintrc.json (Drupal >= 8.3.x)
+.gitattributes
+.ht.router.php (Drupal >= 8.5.x)
+.htaccess
+index.php
+robots.txt
+sites/default/default.settings.php
+sites/default/default.services.yml
+sites/development.services.yml
+sites/example.settings.local.php
+sites/example.sites.php
+update.php
+web.config
+```
+
+When setting `omit-defaults` to `true`, neither the default excludes nor the
+default includes will be provided; in this instance, only those files explicitly
+listed in the `excludes` and `includes` options will be considered. If
+`omit-defaults` is `false` (the default), then any items listed in `excludes`
+or `includes` will be in addition to the usual defaults.
+
+The `initial` hash lists files that should be copied over only if they do not
+exist in the destination. The key specifies the path to the source file, and
+the value indicates the path to the destination file.
+
+## Limitation
+
+When using Composer to install or update the Drupal development branch, the
+scaffold files are always taken from the HEAD of the branch (or, more
+specifically, from the most recent development .tar.gz archive). This might
+not be what you want when using an old development version (e.g. when the
+version is fixed via composer.lock). To avoid problems, always commit your
+scaffold files to the repository any time that composer.lock is committed.
+Note that the correct scaffold files are retrieved when using a tagged release
+of `drupal/core` (recommended).
+
+## Custom command
+
+The plugin by default is only downloading the scaffold files when installing or
+updating `drupal/core`. If you want to call it manually, you have to add the
+command callback to the `scripts`-section of your root `composer.json`, like this:
+
+```json
+{
+  "scripts": {
+    "drupal-scaffold": "DrupalComposer\\DrupalScaffold\\Plugin::scaffold"
+  }
+}
+```
+
+After that you can manually download the scaffold files according to your
+configuration by using `composer drupal-scaffold`.
+
+It is assumed that the scaffold files will be committed to the repository, to
+ensure that the correct files are used on the CI server (see **Limitation**,
+above). After running `composer install` for the first time commit the scaffold
+files to your repository.