🐛 fix usage inside Elixir scripts Mix.install

README.md

@@ -25,14 +25,18 @@ The docs can be found at [https://hexdocs.pm/common_x](https://hexdocs.pm/common
 
 The following modules have extension:
 
- - `ApplicationX` (`Application` extension)
- - `CodeX` (`Code` extension)
- - `EnumX` (`Enum` extension)
- - `MapX` (`Map` extension)
- - `Macro` (`Macro` extension)
+- `ApplicationX` (`Application` extension)
+- `CodeX` (`Code` extension)
+- `EnumX` (`Enum` extension)
+- `MapX` (`Map` extension)
+- `Macro` (`Macro` extension)
 
 ## Changelog
 
+### 2020-08-12 (v0.5.6)
+
+- Fix project detection when installed inside a Elixir script with [`Mix.install/2`](https://hexdocs.pm/mix/Mix.html#install/2).
+
 ### 2020-11-08 (v0.5.5)
 
 - Small fix detecting compile environment in custom commands and Elixir >= 1.11.

lib/common_x/application_x.ex

@@ -7,17 +7,21 @@ defmodule ApplicationX do
   @ignore [:kernel, :stdlib, :elixir, :logger]
   @load_error 'no such file or directory'
 
-  main_project =
+  task_module =
     if p = Process.whereis(Mix.TasksServer) do
-      module =
-        p
-        |> Agent.get(&Map.keys/1)
-        |> Enum.find_value(false, fn
-          {:task, task, m} when task in ~W(app.start deps.loadpaths) -> m
-          _ -> false
-        end)
+      p
+      |> Agent.get(&Map.keys/1)
+      |> Enum.find_value(false, fn
+        {:task, task, m} when task in ~W(app.start deps.loadpaths) -> m
+        _ -> false
+      end)
+    end
 
-      if module, do: module.project()
+  main_project =
+    case task_module do
+      falsy when falsy in [nil, false] -> falsy
+      Mix.InstallProject -> []
+      module -> module.project()
     end
 
   main_app =

mix.exs

@@ -4,7 +4,7 @@ defmodule CommonX.MixProject do
   def project do
     [
       app: :common_x,
-      version: "0.5.5",
+      version: "0.5.6",
       description: "Extension of common Elixir modules.",
       elixir: "~> 1.7",
       start_permanent: Mix.env() == :prod,