Add helper to compare versions

interface-test/src/test/java/coursierapi/test/JvmManagerTests.java

@@ -51,7 +51,7 @@ public void simple() throws IOException, InterruptedException {
         if (exitCode != 0)
             System.err.println("Warning: " + javaBin + " -version command exited with code " + exitCode);
 
-        assertTrue(output.contains("openjdk version \"18\""));
+        assertTrue(output.contains("openjdk version \"18"));
         assertTrue(output.contains("Zulu18"));
     }
 }

interface/src/main/java/coursierapi/Version.java

@@ -0,0 +1,11 @@
+package coursierapi;
+
+import coursier.internal.api.ApiHelper;
+
+public final class Version {
+
+  public static int compare(String version0, String version1) {
+    return ApiHelper.compareVersions(version0, version1);
+  }
+
+}

interface/src/main/scala/coursier/internal/api/ApiHelper.scala

@@ -8,7 +8,7 @@ import coursier._
 import coursierapi.{Credentials, Logger, SimpleLogger}
 import coursier.cache.loggers.RefreshLogger
 import coursier.cache.{ArchiveCache, CacheDefaults, CacheLogger, FileCache, UnArchiver}
-import coursier.core.{Authentication, Configuration}
+import coursier.core.{Authentication, Configuration, Version}
 import coursier.error.{CoursierError, FetchError, ResolutionError}
 import coursier.ivy.IvyRepository
 import coursier.jvm.{JavaHome, JvmCache}
@@ -552,4 +552,7 @@ object ApiHelper {
     javaHome.get(jvmId).unsafeRun()(jvmCache.archiveCache.cache.ec)
   }
 
+  def compareVersions(version0: String, version1: String): Int =
+    Version(version0).compareTo(Version(version1))
+
 }

interface/src/test/scala/coursierapi/VersionTests.scala

@@ -0,0 +1,20 @@
+package coursierapi
+
+import utest._
+
+object VersionTests extends TestSuite {
+
+  val tests = Tests {
+    test("simple") {
+      test {
+        assert(Version.compare("1.0.1", "1.2.3") < 0)
+      }
+      test {
+        assert(Version.compare("1.2.3", "1.0.1") > 0)
+      }
+      test {
+        assert(Version.compare("1.0.1", "1.0.1") == 0)
+      }
+    }
+  }
+}