zstd 1.5.6

Library/Formula/zstd.rb

@@ -0,0 +1,57 @@
+class Zstd < Formula
+  desc "Zstandard is a real-time compression algorithm"
+  homepage "https://facebook.github.io/zstd/"
+  url "https://github.com/facebook/zstd/archive/refs/tags/v1.5.6.tar.gz"
+  mirror "http://fresh-center.net/linux/misc/zstd-1.5.6.tar.gz"
+  mirror "http://fresh-center.net/linux/misc/legacy/zstd-1.5.6.tar.gz"
+  sha256 "30f35f71c1203369dc979ecde0400ffea93c27391bfd2ac5a9715d2173d92ff7"
+  license all_of: [
+    { any_of: ["BSD-3-Clause", "GPL-2.0-only"] },
+    "BSD-2-Clause", # programs/zstdgrep, lib/libzstd.pc.in
+    "MIT", # lib/dictBuilder/divsufsort.c
+  ]
+  head "https://github.com/facebook/zstd.git", branch: "dev"
+
+  bottle do
+  end
+
+  depends_on "cmake" => :build
+  depends_on "lz4"
+  depends_on "xz"
+  depends_on "zlib"
+
+  def install
+    mkdir "builddir" do
+      # Legacy support is the default after
+      # https://github.com/facebook/zstd/commit/db104f6e839cbef94df4df8268b5fecb58471274
+      # Set it to `ON` to be explicit about the configuration.
+      system "cmake", "../build/cmake",
+                      "-DZSTD_PROGRAMS_LINK_SHARED=ON", # link `zstd` to `libzstd`
+                      "-DZSTD_BUILD_CONTRIB=ON",
+                      "-DZSTD_LEGACY_SUPPORT=ON",
+                      "-DZSTD_ZLIB_SUPPORT=ON",
+                      "-DZSTD_LZMA_SUPPORT=ON",
+                      "-DZSTD_LZ4_SUPPORT=ON",
+                      "-DCMAKE_CXX_STANDARD=11",
+                      *std_cmake_args
+      system "make", "install"
+    end
+
+    # Prevent dependents from relying on fragile Cellar paths.
+    # https://github.com/ocaml/ocaml/issues/12431
+    inreplace lib/"pkgconfig/libzstd.pc", prefix, opt_prefix
+  end
+
+  test do
+    [bin/"zstd", bin/"pzstd", "xz", "lz4", "gzip"].each do |prog|
+      data = "Hello, #{prog}"
+      assert_equal data, pipe_output("#{bin}/zstd -d", pipe_output(prog, data))
+      if prog.to_s.end_with?("zstd")
+        # `pzstd` can only decompress zstd-compressed data.
+        assert_equal data, pipe_output("#{bin}/pzstd -d", pipe_output(prog, data))
+      else
+        assert_equal data, pipe_output("#{prog} -d", pipe_output("#{bin}/zstd --format=#{prog}", data))
+      end
+    end
+  end
+end