Kotlin/Bazel: add fail printouts to _default_version

redsun82 · redsun82 · commit 4822de3313bd · 2024-04-12T10:19:10.000+02:00
diff --git a/java/kotlin-extractor/deps.bzl b/java/kotlin-extractor/deps.bzl
@@ -80,7 +80,11 @@ def _get_default_version(repository_ctx):
     if not res:
         fail("kotlinc -version failed: %s" % res.stderr)
     out = (res.stdout or res.stderr).split(" ")
+    if "kotlinc-jvm" not in out:
+        fail("kotlinc -version output does not contain 'kotlinc-jvm': %s" % out)
     kotlinc_jvm_index = out.index("kotlinc-jvm")
+    if kotlinc_jvm_index + 1 >= len(out):
+        fail("kotlinc -version output does not contain a version after 'kotlinc-jvm': %s" % out)
     return out[kotlinc_jvm_index + 1]
 
 def _get_available_version(version):
