Add elixir to path on Windows

Author: josevalim

.github/workflows/ci.yml

@@ -98,6 +98,7 @@ jobs:
         run: |
           Remove-Item -Recurse -Force '.git'
           make compile
+          Add-Content -Path $env:GITHUB_PATH -Value "$env:PWD\bin"
       - name: Build info
         run: bin/elixir --version
       - name: Check format

lib/mix/lib/mix/tasks/deps.partition.ex

@@ -21,7 +21,7 @@ defmodule Mix.Tasks.Deps.Partition do
 
   defp server(socket, deps, count, force?) do
     elixir =
-      System.find_executable("elixir") || System.find_executable("elixir.bat") ||
+      System.find_executable("elixir") ||
         raise "cannot find elixir executable for partition compilation"
 
     {:ok, {ip, port}} = :inet.sockname(socket)

lib/mix/test/mix/tasks/deps_test.exs

@@ -219,6 +219,7 @@ defmodule Mix.Tasks.DepsTest do
     end)
   end
 
+  @tag :elixir_executable
   test "compiles deps using os partitions" do
     System.put_env("MIX_OS_DEPS_COMPILE_PARTITION_COUNT", "2")
 

lib/mix/test/mix/umbrella_test.exs

@@ -282,6 +282,7 @@ defmodule Mix.UmbrellaTest do
     end)
   end
 
+  @tag :elixir_executable
   test "compile for umbrella as dependency with os partitions" do
     System.put_env("MIX_OS_DEPS_COMPILE_PARTITION_COUNT", "2")
 

lib/mix/test/test_helper.exs

@@ -25,6 +25,7 @@ Application.put_env(:logger, :default_handler, false)
 
 os_exclude = if match?({:win32, _}, :os.type()), do: [unix: true], else: [windows: true]
 epmd_exclude = if match?({:win32, _}, :os.type()), do: [epmd: true], else: []
+exec_exclude = if System.find_executable("elixir"), do: [], else: [elixir_executable: true]
 
 git_exclude =
   Mix.SCM.Git.unsupported_options()