From 0a0d55a3e180e89433ffd7b7db5806fb22c1a7df Mon Sep 17 00:00:00 2001
From: Sara Arjona <sara@moodle.com>
Date: Thu, 5 Dec 2019 09:41:46 +0100
Subject: [PATCH 1/6] MDL-65809 environment: 3.9 base information

This is a direct copy of the 3.8 branch to have changes
under control easier in next commits.
---
 admin/environment.xml | 181 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 181 insertions(+)

diff --git a/admin/environment.xml b/admin/environment.xml
index 16b7402d357..3cc5e8d6b05 100644
--- a/admin/environment.xml
+++ b/admin/environment.xml
@@ -2982,4 +2982,185 @@
       </CUSTOM_CHECK>
     </CUSTOM_CHECKS>
   </MOODLE>
+  <MOODLE version="3.9" requires="3.2">
+    <UNICODE level="required">
+      <FEEDBACK>
+        <ON_ERROR message="unicoderequired" />
+      </FEEDBACK>
+    </UNICODE>
+    <DATABASE level="required">
+      <VENDOR name="mariadb" version="5.5.31" />
+      <VENDOR name="mysql" version="5.6" />
+      <VENDOR name="postgres" version="9.4" />
+      <VENDOR name="mssql" version="11.0" />
+      <VENDOR name="oracle" version="11.2" />
+    </DATABASE>
+    <PHP version="7.1.0" level="required">
+    </PHP>
+    <PCREUNICODE level="optional">
+      <FEEDBACK>
+        <ON_CHECK message="pcreunicodewarning" />
+      </FEEDBACK>
+    </PCREUNICODE>
+    <PHP_EXTENSIONS>
+      <PHP_EXTENSION name="iconv" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="iconvrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="mbstring" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="mbstringrecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="curl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="curlrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="openssl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="opensslrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="tokenizer" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="tokenizerrecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="xmlrpc" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="xmlrpcrecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="soap" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="soaprecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="ctype" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="ctyperequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="zip" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="ziprequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="zlib" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="gd" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="gdrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="simplexml" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="simplexmlrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="spl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="splrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="pcre" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="dom" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="xml" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="xmlreader" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="intl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="intlrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="json" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="hash" level="required"/>
+      <PHP_EXTENSION name="fileinfo" level="required"/>
+    </PHP_EXTENSIONS>
+    <PHP_SETTINGS>
+      <PHP_SETTING name="memory_limit" value="96M" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="settingmemorylimit" />
+        </FEEDBACK>
+      </PHP_SETTING>
+      <PHP_SETTING name="file_uploads" value="1" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="settingfileuploads" />
+        </FEEDBACK>
+      </PHP_SETTING>
+      <PHP_SETTING name="opcache.enable" value="1" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="opcacherecommended" />
+        </FEEDBACK>
+      </PHP_SETTING>
+    </PHP_SETTINGS>
+    <CUSTOM_CHECKS>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_database_storage_engine" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddbstorageengine" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="question/engine/upgrade/upgradelib.php" function="quiz_attempts_upgraded" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="quizattemptsupgradedmessage" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_slasharguments" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="slashargumentswarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_database_tables_row_format" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="unsupporteddbtablerowformat" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_unoconv_version" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="unoconvwarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_libcurl_version" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="libcurlwarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_file_format" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddbfileformat" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_file_per_table" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddbfilepertable" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_large_prefix" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddblargeprefix" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_is_https" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="ishttpswarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_incomplete_unicode_support" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="incompleteunicodesupport" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_sixtyfour_bits" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="sixtyfourbitswarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+    </CUSTOM_CHECKS>
+  </MOODLE>
 </COMPATIBILITY_MATRIX>

From 484eab15e38c9803219f24d6960880b219c732a0 Mon Sep 17 00:00:00 2001
From: Sara Arjona <sara@moodle.com>
Date: Thu, 5 Dec 2019 09:43:56 +0100
Subject: [PATCH 2/6] MDL-65809 environment: 3.5 (LTS) required

---
 admin/environment.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/admin/environment.xml b/admin/environment.xml
index 3cc5e8d6b05..451de914c1e 100644
--- a/admin/environment.xml
+++ b/admin/environment.xml
@@ -2982,7 +2982,7 @@
       </CUSTOM_CHECK>
     </CUSTOM_CHECKS>
   </MOODLE>
-  <MOODLE version="3.9" requires="3.2">
+  <MOODLE version="3.9" requires="3.5">
     <UNICODE level="required">
       <FEEDBACK>
         <ON_ERROR message="unicoderequired" />

From 7cdc332930024ea290fc3cf2f13a6c46ccf1ecb6 Mon Sep 17 00:00:00 2001
From: Sara Arjona <sara@moodle.com>
Date: Thu, 5 Dec 2019 09:46:21 +0100
Subject: [PATCH 3/6] MDL-65809 environment: mariadb requirement up to 10.2

---
 admin/environment.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/admin/environment.xml b/admin/environment.xml
index 451de914c1e..60bc1b9d8f0 100644
--- a/admin/environment.xml
+++ b/admin/environment.xml
@@ -2989,7 +2989,7 @@
       </FEEDBACK>
     </UNICODE>
     <DATABASE level="required">
-      <VENDOR name="mariadb" version="5.5.31" />
+      <VENDOR name="mariadb" version="10.2.29" />
       <VENDOR name="mysql" version="5.6" />
       <VENDOR name="postgres" version="9.4" />
       <VENDOR name="mssql" version="11.0" />

From 57d601bc23fec503c12c5d6f7025f574e44f0359 Mon Sep 17 00:00:00 2001
From: Sara Arjona <sara@moodle.com>
Date: Thu, 5 Dec 2019 09:47:26 +0100
Subject: [PATCH 4/6] MDL-65809 environment: postgres requirement up to 9.5

---
 admin/environment.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/admin/environment.xml b/admin/environment.xml
index 60bc1b9d8f0..96cea4f3770 100644
--- a/admin/environment.xml
+++ b/admin/environment.xml
@@ -2991,7 +2991,7 @@
     <DATABASE level="required">
       <VENDOR name="mariadb" version="10.2.29" />
       <VENDOR name="mysql" version="5.6" />
-      <VENDOR name="postgres" version="9.4" />
+      <VENDOR name="postgres" version="9.5" />
       <VENDOR name="mssql" version="11.0" />
       <VENDOR name="oracle" version="11.2" />
     </DATABASE>

From 7e561cc4a8cf29e41886ca38edaea60e0878dcda Mon Sep 17 00:00:00 2001
From: Sara Arjona <sara@moodle.com>
Date: Thu, 5 Dec 2019 09:49:02 +0100
Subject: [PATCH 5/6] MDL-65809 environment: PHP 7.2 required

---
 admin/environment.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/admin/environment.xml b/admin/environment.xml
index 96cea4f3770..55a24fc63d1 100644
--- a/admin/environment.xml
+++ b/admin/environment.xml
@@ -2995,7 +2995,7 @@
       <VENDOR name="mssql" version="11.0" />
       <VENDOR name="oracle" version="11.2" />
     </DATABASE>
-    <PHP version="7.1.0" level="required">
+    <PHP version="7.2.0" level="required">
     </PHP>
     <PCREUNICODE level="optional">
       <FEEDBACK>

From ca89aca7021c9601e5ee0fd14253a9524fa1f5b8 Mon Sep 17 00:00:00 2001
From: Sara Arjona <sara@moodle.com>
Date: Thu, 5 Dec 2019 09:50:53 +0100
Subject: [PATCH 6/6] MDL-65809 environment: mbstring extension required

---
 admin/environment.xml | 4 ++--
 lang/en/admin.php     | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/admin/environment.xml b/admin/environment.xml
index 55a24fc63d1..6f6fb8141f2 100644
--- a/admin/environment.xml
+++ b/admin/environment.xml
@@ -3008,9 +3008,9 @@
           <ON_ERROR message="iconvrequired" />
         </FEEDBACK>
       </PHP_EXTENSION>
-      <PHP_EXTENSION name="mbstring" level="optional">
+      <PHP_EXTENSION name="mbstring" level="required">
         <FEEDBACK>
-          <ON_CHECK message="mbstringrecommended" />
+          <ON_ERROR message="mbstringrequired" />
         </FEEDBACK>
       </PHP_EXTENSION>
       <PHP_EXTENSION name="curl" level="required">
diff --git a/lang/en/admin.php b/lang/en/admin.php
index 400e094b728..cba49f6018a 100644
--- a/lang/en/admin.php
+++ b/lang/en/admin.php
@@ -768,6 +768,7 @@ $string['maxeditingtime'] = 'Maximum time to edit posts';
 $string['maxusersperpage'] = ' Maximum users per page';
 $string['configmaxusersperpage'] = 'Maximum number of users displayed within user selector in course, group, cohort, webservice etc.';
 $string['mbstringrecommended'] = 'Installing the optional MBSTRING library is highly recommended in order to improve site performance, particularly if your site is supporting non-Latin languages.';
+$string['mbstringrequired'] = 'Installing the MBSTRING library is required in order to improve site performance, particularly if your site is supporting non-Latin languages.';
 $string['mediapluginavi'] = 'Enable .avi filter';
 $string['mediapluginflv'] = 'Enable .flv filter';
 $string['mediapluginimg'] = 'Enable auto-embedding of linked images';