Merge pull request #309 from mmaeller/#308

#308 Extend repository validation by allowing port number.

Author: mattnworb

plugin/src/main/java/com/spotify/plugin/dockerfile/BuildMojo.java

@@ -53,7 +53,7 @@ public class BuildMojo extends AbstractDockerMojo {
   /**
    * Regex for a valid docker repository name.  Used in validateRepository().
    */
-  private static final String VALID_REPO_REGEX = "^([a-z0-9_.-])+(\\/[a-z0-9_.-]+)*$";
+  private static final String VALID_REPO_REGEX = "^([a-z0-9_.-])+(:[0-9]{1,5})?(\\/[a-z0-9_.-]+)*$";
 
   /**
    * Directory containing the the build context. This is typically the directory that contains

plugin/src/test/java/com/spotify/plugin/dockerfile/TestRepoNameValidation.java

@@ -47,6 +47,7 @@ public void testSuccess() throws MojoFailureException {
     assertTrue("Start and end with dots", BuildMojo.validateRepository(".start.and.end."));
     assertTrue("Start and end with hyphens", BuildMojo.validateRepository("-start-and-end-"));
     assertTrue("Start and end with underscores", BuildMojo.validateRepository("_start_and_end_"));
+    assertTrue("May contain port", BuildMojo.validateRepository("example.com:443/okay./.path"));
     // Forward slash delimits the repo user from the repo name; strictly speaking,
     // you're allowed only one slash, somewhere in the middle.
     assertTrue("Multipart", BuildMojo.validateRepository("with/forwardslash"));
@@ -59,5 +60,8 @@ public void testFailCases() {
     assertFalse("Symbols didn't fail", BuildMojo.validateRepository("ddddddDd+dddd"));
     assertFalse("Starting slash didn't fail", BuildMojo.validateRepository("/atstart"));
     assertFalse("Ending slash didn't fail", BuildMojo.validateRepository("atend/"));
+    assertFalse("Only port", BuildMojo.validateRepository(":443"));
+    assertFalse(
+        "Port exceeding range", BuildMojo.validateRepository("example.com:100000/myproject"));
   }
 }