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+# Release check-list for Deployer
+
+A simple recipe for [Deployer](https://github.com/deployphp/deployer) to manage a release check-list using Gitlab issues.
+
+The idea is the handle a list of mandatory (and non-blocking) tasks for a release.  
+This is made possible using a Gitlab issue (with its tasks system), with specific title and label (customisable). 
+ 
+## Installation
+
+```bash
+composer require novaway/deployer-release-check-list
+```
+
+## Configuration
+
+```php
+// deploy.php
+<?php
+
+//...
+
+require 'recipe/release_check_list.php';
+
+set('rcl_gitlab_host', 'https://gitlab.example.com');
+set('rcl_gitlab_api_key', 'MY_API_TOKEN');
+set('rcl_gitlab_project_id', 'MY_PROJECT_ID');
+```
+
+## Usage
+
+First, create a Gitlab issue with:
+ * a label named "**Release check-list**" (can be customized, see options below)
+ * a title following the format "**[MAJOR.MINOR.x]** My awesome check-list".
+   
+For example: "**[1.8.x]** My awesome check-list".
+
+This issue will match all deployments based on a **git tag** beginning with `1.8`:
+```bash
+bin/dep deploy prod --tag=1.8.6
+```
+
+Within the issue, you need a create a (one-level) [task list](https://docs.gitlab.com/ee/user/markdown.html#task-lists):
+
+![Gitlab issue](docs/gitlab_issue.png "Gitlab issue")
+
+Each task accepts two types of optional flags:
+* one for the targeted **Deployer host**: `prod`, `staging`, ...
+* one for tasks that need to be done **after the deployment**: `post-release` (non-flagged tasks will be mandatory for the deployment and throw an error if not marked as done)
+
+Example:
+```text
+- [ ] Task 1 [prod,staging]
+- [ ] Task 2 [prod,post-release]
+- [ ] Task 3
+```
+* `Task 1` will be **mandatory** before the deployment on `prod` and `staging` hosts
+* `Task 2` will be **non-blocking** for the deployment on `prod` host, but will be reminded once the deployment is successful
+* `Task 3` will be **mandatory** before the deployment on **all hosts**
+
+
+### Options
+
+#### Customizing the Gitlab label
+```php
+set('rcl_gitlab_label', 'Foo list');
+```
+
+#### Customizing how to get the release version
+By default, `rcl_release_version` is based on `input()->getOption('tag')`.
+```php
+set('rcl_release_version', get('my_release_version'));
+```
+
+### Examples
+
+In case of an uncompleted mandatory task:  
+![Uncompleted task](docs/mandatory_task.png "Mandatory task")
+
+Reminder for `post-release` tasks:  
+![Post-release task](docs/reminder.png "Reminder")
+
+### Bonus
+
+Get a slack notification for uncompleted post-release tasks (considering you already configured the slack recipe):
+```php
+// deploy.php
+use Deployer\Task\Context;
+use Deployer\Utility\Httpie;
+
+task('rcl:post-release-slack-reminder', function() {
+    if (!get('slack_webhook', false)) {
+        return;
+    }
+
+    $pendingPostReleaseTasks = get('rcl_pending_post_release_tasks', []);
+    if (count($pendingPostReleaseTasks) === 0) {
+        return;
+    }
+
+    $text = implode(PHP_EOL, array_map(function($item) {
+       return '- '.$item[1];
+    }, $pendingPostReleaseTasks));
+
+    $host = Context::get()->getHost()->getHostname();
+
+    $attachment = [
+        'title' => sprintf('[%s][%s] Pending post-release tasks:', $host, get('release_version')),
+        'text' => $text,
+        'color' => get('slack_color'),
+        'mrkdwn_in' => ['text'],
+    ];
+
+    Httpie::post(get('slack_webhook'))->body(['attachments' => [$attachment]])->send();
+});
+
+after('success', 'rcl:post-release-slack-reminder');
+```
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