[GR-52774] Add project descriptions and URLs.

PullRequest: graalpython/3258

Author: ansalond

graalpython/graalpy-archetype-polyglot-app/pom.xml

@@ -45,6 +45,8 @@ SOFTWARE.
   <groupId>org.graalvm.python</groupId>
   <artifactId>graalpy-archetype-polyglot-app</artifactId>
   <version>24.1.0</version>
+  <url>http://www.graalvm.org/</url>
+  <description>Maven archetype providing a skeleton GraalPy - Java polyglot application.</description>
   <packaging>maven-archetype</packaging>
 
   <properties>

graalpython/graalpy-maven-plugin/pom.xml

@@ -48,7 +48,9 @@ SOFTWARE.
   <artifactId>graalpy-maven-plugin</artifactId>
   <packaging>maven-plugin</packaging>
   <version>24.1.0</version>
+  <url>http://www.graalvm.org/</url>
   <name>graalpy-maven-plugin</name>
+  <description>Handles python related resources in a maven GraalPy - Java polyglot application.</description>
 
   <properties>
     <maven.compiler.target>17</maven.compiler.target>

mx.graalpython/mx_graalpython.py

@@ -2740,7 +2740,11 @@ def __init__(self, suite, name, deps, excludedLibs, platformDependent, theLicens
             self._localExtension = self._remoteExtension = "jar"
         else:
             self._localExtension = self._remoteExtension
-        self.description = self.pom.get("description", "")
+        self.description = self.pom.get_text("description")
+        if not self.description:
+            mx.abort(f"MavenProject {self.name} does not have a description, which is required by Maven Central")
+        if not self.pom.get_text("url"):
+            mx.abort(f"MavenProject {self.name} does not have a url, which is required by Maven Central")
         self.sourcesname = f"{self.name}-sources.{self._localExtension}"
         self.sourcesPath = os.path.join(self.get_output_root(), self.sourcesname)
         self.path = self._default_path()