shadowenv 1.0.3 (new formula)

Closes #39574.

Signed-off-by: FX Coudert <fxcoudert@gmail.com>

Formula/shadowenv.rb

@@ -0,0 +1,46 @@
+class Shadowenv < Formula
+  desc "Reversible directory-local environment variable manipulations"
+  homepage "https://shopify.github.io/shadowenv/"
+  url "https://github.com/Shopify/shadowenv/archive/1.0.3.tar.gz"
+  sha256 "9b0f25e451b2e47cdacdcb6889aa69bc0a472f5ab337ea7473300cba3b199163"
+
+  depends_on "rust" => :build
+
+  def install
+    system "cargo", "install", "--root", prefix, "--path", "."
+    man1.install "#{buildpath}/man/man1/shadowenv.1"
+    man5.install "#{buildpath}/man/man5/shadowlisp.5"
+  end
+
+  test do
+    expected_output = <<~EOM
+      EXAMPLE:
+      EXAMPLE2:b
+      EXAMPLE3:b
+      EXAMPLE_PATH:a:b:d
+      ---
+      EXAMPLE:a
+      EXAMPLE2:
+      EXAMPLE3:a
+      EXAMPLE_PATH:c:d
+    EOM
+    environment = "export EXAMPLE2=b EXAMPLE3=b EXAMPLE_PATH=a:b:d;"
+    hash = "1256a7c3de15e864"
+    data = {
+      "scalars" => [
+        { "name" => "EXAMPLE2", "original" => nil, "current" => "b" },
+        { "name" => "EXAMPLE", "original" => "a", "current" => nil },
+        { "name" => "EXAMPLE3", "original" => "a", "current" => "b" },
+      ],
+      "lists"   => [
+        { "name" => "EXAMPLE_PATH", "additions" => ["b", "a"], "deletions" => ["c"] },
+      ],
+    }
+    # Read ...'\"'\"'... on the next line as a ruby `...' + "'" + '...` but for bash
+    shadowenv_command = "#{bin}/shadowenv hook '\"'\"'#{hash}:#{data.to_json}'\"'\"' 2> /dev/null"
+    print_vars = "echo EXAMPLE:$EXAMPLE; echo EXAMPLE2:$EXAMPLE2; echo EXAMPLE3:$EXAMPLE3; echo EXAMPLE_PATH:$EXAMPLE_PATH;"
+    actual_output = shell_output("bash -c '#{environment} #{print_vars} echo ---; eval \"$(#{shadowenv_command})\"; #{print_vars}'")
+
+    assert_equal expected_output, actual_output
+  end
+end