cleanup test system Mix.env/0 check

lib/expublish/git.ex

@@ -28,17 +28,15 @@ defmodule Expublish.Git do
   """
   @spec commit_and_tag(Version.t(), Options.t()) :: Version.t()
   def commit_and_tag(%Version{} = version, options \\ %Options{}) do
-    syscall_module = if Mix.env() == :test, do: TestSystem, else: System
-
     commit_prefix = Options.git_commit_prefix(options)
     tag_prefix = Options.git_tag_prefix(options)
 
     git_commit_message = "#{commit_prefix} #{version}"
     git_tag = "#{tag_prefix}#{version}"
 
-    add(["add", "-u"], options, syscall_module)
-    commit(["commit", "-qm", git_commit_message], options, syscall_module)
-    tag(["tag", "-a", git_tag, "-m", git_commit_message], options, syscall_module)
+    add(["add", "-u"], options)
+    commit(["commit", "-qm", git_commit_message], options)
+    tag(["tag", "-a", git_tag, "-m", git_commit_message], options)
 
     version
   end
@@ -50,12 +48,10 @@ defmodule Expublish.Git do
   def push(version, options \\ %Options{})
 
   def push(%Version{} = version, %Options{dry_run: false, disable_push: false} = options) do
-    syscall_module = if Mix.env() == :test, do: TestSystem, else: System
-
     %{branch: branch, remote: remote} = options
     Logger.info("Pushing new package version with: \"git push #{remote} #{branch} --tags\".\n")
 
-    case syscall_module.cmd("git", ["push", remote, branch, "--tags"]) do
+    case Expublish.System.cmd("git", ["push", remote, branch, "--tags"]) do
       {_, 0} -> :noop
       _ -> Logger.error("Failed to push new version commit to git.")
     end
@@ -68,31 +64,31 @@ defmodule Expublish.Git do
     version
   end
 
-  defp add(command, %Options{dry_run: true}, syscall_module) do
-    syscall_module.cmd("git", command ++ ["--dry-run"])
+  defp add(command, %Options{dry_run: true}) do
+    Expublish.System.cmd("git", command ++ ["--dry-run"])
   end
 
-  defp add(command, _options, syscall_module) do
-    syscall_module.cmd("git", command)
+  defp add(command, _options) do
+    Expublish.System.cmd("git", command)
   end
 
-  defp commit([_, _, git_commit_message] = command, %Options{dry_run: true}, syscall_module) do
+  defp commit([_, _, git_commit_message] = command, %Options{dry_run: true}) do
     Logger.info(~s'Skipping new version commit: "#{git_commit_message}".')
-    syscall_module.cmd("git", command ++ ["--dry-run"])
+    Expublish.System.cmd("git", command ++ ["--dry-run"])
   end
 
-  defp commit([_, _, git_commit_message] = command, _options, syscall_module) do
+  defp commit([_, _, git_commit_message] = command, _options) do
     Logger.info(~s'Creating new version commit: "#{git_commit_message}".')
-    syscall_module.cmd("git", command)
+    Expublish.System.cmd("git", command)
   end
 
-  defp tag([_, _, git_tag | _], %Options{dry_run: true}, _syscall_module) do
+  defp tag([_, _, git_tag | _], %Options{dry_run: true}) do
     Logger.info(~s'Skipping new version tag: "#{git_tag}".')
   end
 
-  defp tag([_, _, git_tag | _] = command, _options, syscall_module) do
+  defp tag([_, _, git_tag | _] = command, _options) do
     Logger.info(~s'Creating new version tag: "#{git_tag}".')
-    syscall_module.cmd("git", command)
+    Expublish.System.cmd("git", command)
   end
 
   defp status(command) do

lib/expublish/hex.ex

@@ -14,10 +14,9 @@ defmodule Expublish.Hex do
   def publish(version, options \\ %Options{})
 
   def publish(version, %Options{dry_run: false, disable_publish: false}) do
-    syscall_module = if Mix.env() == :test, do: TestSystem, else: System
     Logger.info("Publishing new package version with: \"mix hex.publish --yes\".\n")
 
-    case syscall_module.cmd("mix", ["hex.publish", "--yes"]) do
+    case Expublish.System.cmd("mix", ["hex.publish", "--yes"]) do
       {_, 0} ->
         Logger.info("Successfully published new package version on hex.")
 

lib/expublish/shell.ex

@@ -0,0 +1,11 @@
+defmodule Expublish.Shell do
+  @moduledoc false
+
+  def cmd(command, opts \\ []) do
+    adapter().cmd(command, opts)
+  end
+
+  defp adapter do
+    Application.get_env(:expublish, :shell_adapter, Mix.Shell.IO)
+  end
+end

lib/expublish/system.ex

@@ -0,0 +1,10 @@
+defmodule Expublish.System do
+  @moduledoc false
+  def cmd(command, args, opts \\ []) do
+    adapter().cmd(command, args, opts)
+  end
+
+  defp adapter do
+    Application.get_env(:expublish, :system_adapter, System)
+  end
+end

lib/expublish/tests.ex

@@ -19,9 +19,8 @@ defmodule Expublish.Tests do
 
   def validate(_options, level) do
     Logger.info("Starting test run for #{to_string(level)} release.")
-    syscall_module = if Mix.env() == :test, do: TestMixShell, else: Mix.Shell.IO
 
-    case syscall_module.cmd("mix test") do
+    case Expublish.Shell.cmd("mix test") do
       0 -> :ok
       _ -> "Test run failed. Abort."
     end

test/support/test_shell.ex

@@ -0,0 +1,15 @@
+defmodule Expublish.TestShell do
+  @moduledoc false
+
+  require Logger
+
+  def cmd(command, args \\ []) do
+    args_string = Enum.join(args, " ")
+
+    "#{command} #{args_string}"
+    |> String.trim()
+    |> Logger.info()
+
+    0
+  end
+end

test/support/test_system.ex

@@ -1,12 +1,12 @@
-defmodule TestSystem do
+defmodule Expublish.TestSystem do
   @moduledoc false
 
   require Logger
 
-  def cmd(command, options \\ []) do
-    options_string = Enum.join(options, " ")
+  def cmd(command, args, _options \\ []) do
+    args_string = Enum.join(args, " ")
 
-    "#{command} #{options_string}"
+    "#{command} #{args_string}"
     |> String.trim()
     |> Logger.info()
 

test/test_helper.exs

@@ -1 +1,4 @@
 ExUnit.start()
+
+Application.put_env(:expublish, :system_adapter, Expublish.TestSystem)
+Application.put_env(:expublish, :shell_adapter, Expublish.TestShell)