use envvar and released versions for maven projects

Author: timfel

graalpython/com.oracle.graal.python.test.integration/pom.xml

@@ -64,7 +64,7 @@ Additionally, one can change the polyglot artifacts version with
         <maven.compiler.source>17</maven.compiler.source>
         <maven.compiler.target>17</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <com.oracle.graal.python.test.polyglot.version>24.1.0</com.oracle.graal.python.test.polyglot.version>
+        <com.oracle.graal.python.test.polyglot.version>24.0.0</com.oracle.graal.python.test.polyglot.version>
     </properties>
 
     <build>
@@ -99,6 +99,17 @@ Additionally, one can change the polyglot artifacts version with
     </build>
 
     <profiles>
+        <profile>
+            <id>Version from suite</id>
+            <activation>
+                <property>
+                    <name>env.GRAALPY_VERSION</name>
+                </property>
+            </activation>
+            <properties>
+                <com.oracle.graal.python.test.polyglot.version>${env.GRAALPY_VERSION}</com.oracle.graal.python.test.polyglot.version>
+            </properties>
+        </profile>
         <profile>
             <id>Custom central repo</id>
             <activation>

graalpython/graalpy-maven-plugin/pom.xml

@@ -56,9 +56,23 @@ SOFTWARE.
     <maven.compiler.target>17</maven.compiler.target>
     <maven.compiler.source>17</maven.compiler.source>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <graalpy.version>24.1.0</graalpy.version>
+    <graalpy.version>24.0.0</graalpy.version>
   </properties>
 
+  <profiles>
+      <profile>
+          <id>Version from suite</id>
+          <activation>
+              <property>
+                  <name>env.GRAALPY_VERSION</name>
+              </property>
+          </activation>
+          <properties>
+              <graalpy.version>${env.GRAALPY_VERSION}</graalpy.version>
+          </properties>
+      </profile>
+  </profiles>
+
   <build>
     <plugins>
       <plugin>

mx.graalpython/mx_graalpython.py

@@ -104,6 +104,9 @@ def get_boolean_env(name, default=False):
 PYTHON_VERSION = SUITE.suiteDict[f'{SUITE.name}:pythonVersion']
 PYTHON_VERSION_MAJ_MIN = ".".join(PYTHON_VERSION.split('.')[:2])
 
+# this environment variable is used by some of our maven projects and jbang integration to build against the unreleased master version during development
+os.environ["GRAALPY_VERSION"] = GRAAL_VERSION
+
 MAIN_BRANCH = 'master'
 HPY_IMPORT_ORPHAN_BRANCH_NAME = "hpy-import"