Rename index override env var and store index with new filename

Author: repolevedavaj

README.md

@@ -124,7 +124,7 @@ Note that the flag needs to be added as prefix (e.g. `version = "^11.0.16.1+1"`)
 After running the `upgrade` command, the `install` command needs to be executed again to install the upgraded tools.
 
 ## Custom index
-The `PROJECT_ENV_TOOL_INDEX` env var can be used to specify a custom index URL. Note that the custom index needs to follow the format of the V2 format (see https://github.com/Project-Env/project-env-tools/blob/main/index-v2.json).
+The `PROJECT_ENV_TOOL_INDEX_V2` env var can be used to specify a custom index URL. Note that the custom index needs to follow the format of the V2 format (see https://github.com/Project-Env/project-env-tools/blob/main/index-v2.json).
 
 ## Cache
 All downloaded tool archives are cached, so they don't need to be downloaded multiple times.

code/cli/src/main/java/io/projectenv/core/cli/index/DefaultToolsIndexManager.java

@@ -29,8 +29,8 @@
 public class DefaultToolsIndexManager implements ToolsIndexManager {
 
     private static final String DEFAULT_TOOLS_INDEX_URL = "https://raw.githubusercontent.com/Project-Env/project-env-tools/main/index-v2.json";
-    private static final String PROJECT_ENV_TOOL_INDEX_ENV = "PROJECT_ENV_TOOL_INDEX";
-    private static final String TOOLS_INDEX_FILE = "tools-index.json";
+    private static final String PROJECT_ENV_TOOL_INDEX_ENV = "PROJECT_ENV_TOOL_INDEX_V2";
+    private static final String TOOLS_INDEX_FILE = "tools-index-v2.json";
 
     private static final Gson GSON = GsonFactory.createGsonBuilder().create();
 

code/cli/src/test/java/io/projectenv/core/cli/index/DefaultToolsIndexManagerCustomIndexTest.java

@@ -18,7 +18,7 @@ public class DefaultToolsIndexManagerCustomIndexTest {
     @Test
     void resolveMavenDistributionUrl() throws Exception {
         var url = getClass().getResource("custom-index.json").toString();
-        try (var ignored = TestEnvironmentVariables.overlayEnv(Map.of("PROJECT_ENV_TOOL_INDEX", url))) {
+        try (var ignored = TestEnvironmentVariables.overlayEnv(Map.of("PROJECT_ENV_TOOL_INDEX_V2", url))) {
             ToolsIndexManager manager = new DefaultToolsIndexManager(tempDir);
             assertThat(manager.resolveMavenDistributionUrl("customVersion")).isEqualTo("customVersionUrl");
         }