jvgrep v4.1 (new formula)

Closes Homebrew/homebrew#39261.

Signed-off-by: Tim D. Smith <git@tim-smith.us>

Formula/jvgrep.rb

@@ -0,0 +1,42 @@
+require "language/go"
+
+class Jvgrep < Formula
+  homepage "https://github.com/mattn/jvgrep"
+  url "https://github.com/mattn/jvgrep/archive/v4.1.tar.gz"
+  sha256 "f0d8d4a2214e6873688dfe2f75e21c8c4a0a105efd145cde419abf4280e57fb2"
+
+  head "https://github.com/mattn/jvgrep.git"
+
+  depends_on "go" => :build
+
+  go_resource "github.com/daviddengcn/go-colortext" do
+    url "https://github.com/daviddengcn/go-colortext.git", :revision => "13eaeb896f5985a1ab74ddea58707a73d875ba57"
+  end
+
+  go_resource "github.com/mattn/go-isatty" do
+    url "https://github.com/mattn/go-isatty.git", :revision => "ae0b1f8f8004be68d791a576e3d8e7648ab41449"
+  end
+
+  go_resource "golang.org/x/net" do
+    url "https://go.googlesource.com/net.git", :revision => "a8c61998a557a37435f719980da368469c10bfed"
+  end
+
+  go_resource "golang.org/x/text" do
+    url "https://go.googlesource.com/text.git", :revision => "af4c2d73d0954e6f7ed1bd89afe33c9d347d9be5"
+  end
+
+  def install
+    ENV["GOPATH"] = buildpath
+    mkdir_p buildpath/"src/github.com/mattn"
+    ln_s buildpath, buildpath/"src/github.com/mattn/jvgrep"
+    Language::Go.stage_deps resources, buildpath/"src"
+
+    system "go", "build", "jvgrep.go"
+    bin.install "jvgrep"
+  end
+
+  test do
+    (testpath/"Hello.txt").write("Hello World!")
+    system "#{bin}/jvgrep", "Hello World!", testpath
+  end
+end