julianhyde commented on code in PR #3250:
URL: https://github.com/apache/calcite/pull/3250#discussion_r1223566562
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testkit/src/main/java/org/apache/calcite/util/TestUtil.java:
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@@ -310,6 +315,38 @@ public static String getJavaVirtualMachineVendor() {
return System.getProperty("java.vm.vendor");
}
+ /** Returns the root directory of the source tree. */
+ public static File getBaseDir(Class<?> klass) {
+ // Algorithm:
+ // 1) Find location of TestUtil.class
+ // 2) Climb via getParentFile() until we detect pom.xml
+ // 3) It means we've got BASE/testkit/pom.xml, and we need to get BASE
+ final URL resource = klass.getResource(klass.getSimpleName() + ".class");
+ final File testUtilClass =
+ Sources.of(requireNonNull(resource, "resource")).file();
+
+ File file = testUtilClass.getAbsoluteFile();
+ for (int i = 0; i < 42; i++) {
+ if (isProjectDir(file)) {
+ // Ok, file == BASE/testkit/
+ break;
+ }
+ file = file.getParentFile();
+ }
+ if (!isProjectDir(file)) {
+ fail("Could not find either testkit/pom.xml or testkit/build.gradle.kts.
"
Review Comment:
agree; fixed
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