Add the correct ERL and elixir arguments for starting IEx depending o…

…n the version of elixir sdk

CHANGELOG.md

@@ -3,8 +3,10 @@
 ## v17.0.1
 
 ### Bug Fixes
-* [#3491](https://github.com/KronicDeth/intellij-elixir/pull/3491) - [neominik](https://github.com/neominik)
+* [#3491](https://github.com/KronicDeth/intellij-elixir/pull/3491) - [@neominik](https://github.com/neominik)
   * Render code snippets that are not links.
+* [#3562](https://github.com/KronicDeth/intellij-elixir/pull/3562) - [@ashleysommer](https://github.com/ashleysommer)
+  * Add the correct ERL and elixir arguments for starting IEx depending on the version of Elixir SDK.
 
 ## v17.0.0
 

resources/META-INF/changelog.html

@@ -6,6 +6,7 @@ <h1>v17.0.1</h1>
         <p>Bug Fixes</p>
         <ul>
             <li>Render code snippets that are not links.</li>
+            <li>Add the correct ERL and elixir arguments for starting IEx depending on the version of Elixir SDK.</li>
         </ul>
     </li>
 </ul>

src/org/elixir_lang/IEx.kt

@@ -2,6 +2,7 @@ package org.elixir_lang
 
 import com.intellij.execution.configurations.GeneralCommandLine
 import com.intellij.openapi.projectRoots.Sdk
+import com.intellij.openapi.util.Version
 import org.elixir_lang.Elixir.elixirSdkToEnsuredErlangSdk
 import org.elixir_lang.Elixir.prependNewCodePaths
 
@@ -19,15 +20,34 @@ object IEx {
         prependNewCodePaths(commandLine, elixirSdk, erlangSdk)
         commandLine.addParameters("-elixir", "ansi_enabled", "true")
         commandLine.addParameters(erlArgumentList)
-        addIEx(commandLine)
+        addIEx(commandLine, elixirSdk)
         commandLine.addParameter("--no-halt")
 
         return commandLine
     }
 
-    private fun addIEx(commandLine: GeneralCommandLine) {
+    private fun addIEx(commandLine: GeneralCommandLine, elixirSdk: Sdk) {
         commandLine.addParameter("-noshell")
-        commandLine.addParameters("-user", "Elixir.IEx.CLI")
-        commandLine.addParameter("-extra")
+
+        val elixirVersion = elixirSdk.versionString?.let { Version.parseVersion(it) }
+        if (elixirVersion?.lessThan(1, 15, 0) == true) {
+            /* Pre Elixir 1.15.0, IEx entrypoint was as Elixir.IEx.CLI start() */
+            commandLine.addParameters("-user", "Elixir.IEx.CLI")
+            commandLine.addParameter("-extra")
+        } else if (elixirVersion?.`is`(1, 15, 0) == true) {
+            /* Weird case for 1.15.0-rc1 to 1.15.0
+             * It had a bugged start_iex that needs to be specified differently. */
+            commandLine.addParameters("-s", "elixir", "start_cli")
+            commandLine.addParameters("-user", "elixir")
+            commandLine.addParameter("-extra")
+            commandLine.addParameters("-e", ":elixir.start_iex()")
+        } else {
+            /* Case for elixir 1.16.0+ (and 1.15.1+ from the 1.15 branch).
+             * We can call start_iex directly from elixir entrypoint. */
+            commandLine.addParameters("-s", "elixir", "start_iex")
+            commandLine.addParameters("-user", "elixir")
+            commandLine.addParameter("-extra")
+        }
+        commandLine.addParameter("+iex")
     }
 }