[GitHub] [hudi] nsivabalan commented on a diff in pull request #6684: [DOCS] Add Documentation for running unit tests/debugger with spark3

[GitBox <gi...@apache.org>]

nsivabalan commented on code in PR #6684:
URL: https://github.com/apache/hudi/pull/6684#discussion_r976996005


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website/contribute/developer-setup.md:
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@@ -275,6 +275,18 @@ Discussion about contributing code to Hudi happens on the [dev@ mailing list](/c
 
 This Quick Video will give a code walkthrough to start with [watch](https://www.youtube.com/watch?v=N2eDfU_rQ_U).
 
+## Running unit tests and local debugger via Intellij IDE
+
+0. Build the project with the intended profiles via the `mvn` cli, for example for spark 3.2 use `mvn clean package -Dspark3.2 -Dscala-2.12 -DskipTests`. 
+1. Install the "Maven Helper" plugin from the Intellij IDE.
+2. Make sure IDEA uses Maven to build/run tests:
+   * You need to select the intended Maven profiles (using Maven tool pane in IDEA): select profiles you are targeting for example `spark2.4` and `scala-2.11` or `spark3.2`, `scala-2.12` etc. 
+   * Add `.mvn/maven.config` file at the root of the repo w/ the the profiles you selected in the pane: `-Dspark3.2` `-Dscala-2.12`
+3. Make sure you change (temporarily) the `scala.binary.version` in the root `pom.xml` to the intended scala profile version. For example if running with spark3 `scala.binary.version` should be `2.12`

Review Comment:
   did you put up a PR to add .mvn to .gitignore file. we can land that in right instead of reminding folks here.



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