vcftools: import from homebrew/science

Closes #22075.

Signed-off-by: ilovezfs <ilovezfs@icloud.com>

Formula/vcftools.rb

@@ -0,0 +1,28 @@
+class Vcftools < Formula
+  desc "Tools for working with VCF files"
+  homepage "https://vcftools.github.io/"
+  url "https://github.com/vcftools/vcftools/releases/download/v0.1.15/vcftools-0.1.15.tar.gz"
+  sha256 "31e47afd5be679d89ece811a227525925b6907cce4af2c86f10f465e080383e3"
+
+  depends_on "pkg-config" => :build
+  depends_on "htslib"
+
+  def install
+    system "./configure", "--disable-dependency-tracking",
+                          "--disable-silent-rules",
+                          "--prefix=#{prefix}",
+                          "--with-pmdir=lib/perl5/site_perl"
+    system "make", "install"
+
+    bin.env_script_all_files(libexec/"bin", :PERL5LIB => lib/"perl5/site_perl")
+  end
+
+  test do
+    (testpath/"test.vcf").write <<~EOS
+      ##fileformat=VCFv4.0
+      #CHROM	POS	ID	REF	ALT	QUAL	FILTER	INFO
+      1	1	.	A	C	10	PASS	.
+    EOS
+    system "#{bin}/vcf-validator", "test.vcf"
+  end
+end