Merge pull request #173 from gnodet/cygwin

Cygwin support, fixes #156

common/src/main/java/org/jboss/fuse/mvnd/common/Environment.java

@@ -20,6 +20,7 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.Collection;
+import java.util.Locale;
 import java.util.Map;
 import java.util.Optional;
 import java.util.Properties;
@@ -139,7 +140,7 @@ public enum Environment {
         return MVND_PROPERTIES_PATH
                 .environmentVariable()
                 .orSystemProperty()
-                .orDefault(() -> System.getProperty("user.home") + "/.m2/mvnd.properties")
+                .orDefault(() -> Paths.get(System.getProperty("user.home"), ".m2", "mvnd.properties").toString())
                 .asPath()
                 .toAbsolutePath().normalize();
     }
@@ -325,10 +326,22 @@ public enum Environment {
         }
 
         public Path asPath() {
-            final String result = get();
+            String result = get();
+            if (result != null && Os.current().isCygwin()) {
+                result = cygpath(result);
+            }
             return result == null ? null : Paths.get(result);
         }
 
+        static String cygpath(String result) {
+            String path = result.replace('/', '\\');
+            if (path.matches("\\\\cygdrive\\\\[a-z]\\\\.*")) {
+                String s = path.substring("\\cygdrive\\".length());
+                result = s.substring(0, 1).toUpperCase(Locale.ENGLISH) + ":" + s.substring(1);
+            }
+            return result;
+        }
+
         public boolean asBoolean() {
             return Boolean.parseBoolean(get());
         }

common/src/main/java/org/jboss/fuse/mvnd/common/Os.java

@@ -20,7 +20,18 @@ import java.util.Locale;
 public enum Os {
     LINUX(true),
     MAC(true),
-    WINDOWS(false),
+    WINDOWS(false) {
+        private boolean cygwin;
+        {
+            String pwd = System.getenv("PWD");
+            cygwin = pwd != null && pwd.startsWith("/");
+        }
+
+        @Override
+        public boolean isCygwin() {
+            return cygwin;
+        }
+    },
     UNKNOWN(false) {
 
         @Override
@@ -58,4 +69,8 @@ public enum Os {
         return unixLike;
     }
 
+    public boolean isCygwin() {
+        return false;
+    }
+
 }

common/src/test/java/org/jboss/fuse/mvnd/common/EnvironmentTest.java

@@ -87,6 +87,11 @@ public class EnvironmentTest {
         }
     }
 
+    @Test
+    void cygwin() {
+        Assertions.assertEquals("C:\\jdk-11.0.2\\", Environment.EnvValue.cygpath("/cygdrive/c/jdk-11.0.2/"));
+    }
+
     static class EnvironmentResource implements AutoCloseable {
 
         private final Properties props = new Properties();