transcrypt 0.9.4 (new formula)

Closes Homebrew/homebrew#31253.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Formula/transcrypt.rb

@@ -0,0 +1,30 @@
+require "formula"
+
+class Transcrypt < Formula
+  homepage "https://github.com/elasticdog/transcrypt#readme"
+  url "https://github.com/elasticdog/transcrypt/archive/v0.9.4.tar.gz"
+  sha1 "e791a1a32aabac7d92b01d0448fa2cf22eb965fc"
+  head "https://github.com/elasticdog/transcrypt.git"
+
+  def install
+    bin.install "transcrypt"
+    man.install "man/transcrypt.1"
+    bash_completion.install "contrib/bash/transcrypt"
+    zsh_completion.install "contrib/zsh/_transcrypt"
+  end
+
+  test do
+    system "git", "init"
+    system bin/"transcrypt", "--password", "guest", "--yes"
+
+    (testpath/".gitattributes").atomic_write <<-EOS.undent
+      sensitive_file  filter=crypt diff=crypt
+    EOS
+    (testpath/"sensitive_file").write "secrets"
+    system "git", "add", ".gitattributes", "sensitive_file"
+    system "git", "commit", "--message", "Add encrypted version of file"
+
+    assert_equal `git show HEAD:sensitive_file --no-textconv`.chomp,
+                 "U2FsdGVkX1/BC5TmOtJ9kCgCq4EmYX0crGU7mAIhDEA="
+  end
+end