added release workflow and changed minimum moodle version number 3.9+

Author: NinaHerrmann

.github/workflows/moodle-release.yml

@@ -0,0 +1,54 @@
+#
+# Whenever a new tag starting with "v" is pushed, add the tagged version
+# to the Moodle Plugins directory at https://moodle.org/plugins
+#
+# revision: 2021070201
+# Changed to be released on Github release with the release notes.
+#
+name: Releasing in the Plugins directory
+
+on:
+  release:
+    types: [published]
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  release-at-moodle-org:
+    runs-on: ubuntu-latest
+    env:
+      PLUGIN: mod_groupmembers
+      CURL: curl -s
+      ENDPOINT: https://moodle.org/webservice/rest/server.php
+      TOKEN: ${{ secrets.MOODLE_ORG_TOKEN }}
+      FUNCTION: local_plugins_add_version
+
+    steps:
+      - name: Call the service function
+        id: add-version
+        run: |
+          TAGNAME="${{ github.event.release.tag_name }}"
+          BODY="${{ github.event.release.body }}"
+          ZIPURL="${{ github.event.release.zipball_url }}"
+          RESPONSE=$(${CURL} ${ENDPOINT} --data-urlencode "wstoken=${TOKEN}" \
+                                         --data-urlencode "wsfunction=${FUNCTION}" \
+                                         --data-urlencode "moodlewsrestformat=json" \
+                                         --data-urlencode "frankenstyle=${PLUGIN}" \
+                                         --data-urlencode "zipurl=${ZIPURL}" \
+                                         --data-urlencode "vcssystem=git" \
+                                         --data-urlencode "vcsrepositoryurl=${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}" \
+                                         --data-urlencode "vcstag=${TAGNAME}" \
+                                         --data-urlencode "changelogurl=${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}/commits/${TAGNAME}" \
+                                         --data-urlencode "altdownloadurl=${ZIPURL}" \
+                                         --data-urlencode "releasenotes=${BODY}" \
+                                         --data-urlencode "releasenotesformat=4")
+          echo "::set-output name=response::${RESPONSE}"
+      - name: Evaluate the response
+        id: evaluate-response
+        env:
+          RESPONSE: ${{ steps.add-version.outputs.response }}
+        run: |
+          jq <<< ${RESPONSE}
+          jq --exit-status ".id" <<< ${RESPONSE} > /dev/null

version.php

@@ -26,7 +26,7 @@
 defined('MOODLE_INTERNAL') || die();
 
 $plugin->maturity  = MATURITY_STABLE;
-$plugin->release   = 'v3.11-r2';
+$plugin->release   = 'v4.0-r1';
 $plugin->version   = 2021082700;         // The current module version (Date: YYYYMMDDXX).
-$plugin->requires  = 2016120500;         // Requires this Moodle version.
+$plugin->requires  = 2020061500;         // Requires this Moodle version.
 $plugin->component = 'mod_groupmembers'; // Full name of the plugin (used for diagnostics).