First stab at adding extensions:

- MsUpload
- PageForms
- PageSchemas
- SemanticMediaWiki
- WikiMarkdown

.env.sample

@@ -45,3 +45,19 @@ SECRET_MEDIAWIKI_SECRET_KEY_VERSION=v1 # length=64
 # OPENID_KEYCLOAK_URL="https://keycloak.local:8080/auth/realms/acme/"
 # OPENID_CLIENT_ID="mediawiki"
 # SECRET_OPENID_CLIENT_SECRET_VERSION=v1
+
+## MsUpload
+#MSU_ENABLED=1
+
+## PageForms
+#PAGEFORMS_ENABLED=1
+
+## PageSchemas
+#PAGESCHEMAS_ENABLED=1
+
+## SemanticMediaWiki
+#SEMANTICMW_ENABLED=1
+
+## WikiMarkdown
+#MARKDOWN_ENABLED=1
+

entrypoint.sh.tmpl

@@ -71,6 +71,47 @@ init_extensions() {
 				/var/www/html/extensions/OpenIDConnect
 		fi
 	fi
+
+	if [ -n "${MSU_ENABLED-}" ]; then
+		if [ ! -d /var/www/html/extensions/MsUpload ]; then
+			git clone --depth 1 -b REL1_39 \
+				https://gerrit.wikimedia.org/r/mediawiki/extensions/MsUpload \
+				/var/www/html/extensions/MsUpload
+		fi
+	fi
+
+	if [ -n "${PAGEFORMS_ENABLED-}" ]; then
+		if [ ! -d /var/www/html/extensions/PageForms ]; then
+			git clone --depth 1 -b REL1_39 \
+				https://gerrit.wikimedia.org/r/mediawiki/extensions/PageForms \
+				/var/www/html/extensions/PageForms
+		fi
+	fi
+
+	if [ -n "${PAGESCHEMAS_ENABLED-}" ]; then
+		if [ ! -d /var/www/html/extensions/PageSchemas ]; then
+			git clone --depth 1 -b REL1_39 \
+				https://gerrit.wikimedia.org/r/mediawiki/extensions/PageSchemas \
+				/var/www/html/extensions/PageSchemas
+		fi
+	fi
+
+	if [ -n "${SEMANTICMW_ENABLED-}" ]; then
+		if [ ! -d /var/www/html/extensions/SemanticMediaWiki ]; then
+			git clone --depth 1 -b REL1_39 \
+				https://gerrit.wikimedia.org/r/mediawiki/extensions/SemanticMediaWiki \
+				/var/www/html/extensions/SemanticMediaWiki
+		fi
+	fi
+
+	if [ -n "${MARKDOWN_ENABLED-}" ]; then
+		if [ ! -d /var/www/html/extensions/WikiMarkdown ]; then
+			git clone --depth 1 -b REL1_39 \
+				https://gerrit.wikimedia.org/r/mediawiki/extensions/WikiMarkdown \
+				/var/www/html/extensions/WikiMarkdown
+		fi
+	fi
+
 }
 
 main() {