devonfw#1318: added getPath method to get variable as Path + test (devonfw#1329)

Author: hohwille

ide/src/main/java/com/devonfw/tools/ide/env/var/EnvironmentVariables.java

@@ -1,6 +1,7 @@
 package com.devonfw.tools.ide.env.var;
 
 import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.Locale;
 
 import com.devonfw.tools.ide.log.IdeLogger;
@@ -27,6 +28,20 @@ default String get(String name) {
     return value;
   }
 
+  /**
+   * @param name the name of the environment variable to get.
+   * @return the value of the variable with the given {@code name} as {@link Path}. Will be {@code null} if no such
+   *         variable is defined.
+   */
+  default Path getPath(String name) {
+
+    String value = get(name);
+    if (value == null) {
+      return null;
+    }
+    return Paths.get(value);
+  }
+
   /**
    * @param name the name of the environment variable to get.
    * @return the value of the variable with the given {@code name} without {@link #getParent() inheritance from parent}.

ide/src/test/java/com/devonfw/tools/ide/context/IdeContextTest.java

@@ -68,6 +68,8 @@ public void testBasicProjectEnvironment() {
     assertThat(context.env().getIdeHome().resolve("readme")).hasContent("this is the IDE_HOME directory");
     assertThat(context.env().getIdeRoot().resolve("readme")).hasContent("this is the IDE_ROOT directory");
     assertThat(context.env().getUserHome().resolve("readme")).hasContent("this is the users HOME directory");
+    assertThat(context.env().getVariables().getPath("M2_REPO"))
+        .isEqualTo(context.env().getUserHome().resolve(".m2/repository"));
     assertThat(context.env().getDownloadCache().resolve("readme")).hasContent("this is the download cache");
     assertThat(context.env().getDownloadMetadata().resolve("readme")).hasContent("this is the download metadata");
     assertThat(context.env().getToolRepository().resolve("readme")).hasContent("this is the tool repository");