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-rw-r--r--nixpkgs/pkgs/tools/compression/gzip/default.nix72
1 files changed, 72 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/tools/compression/gzip/default.nix b/nixpkgs/pkgs/tools/compression/gzip/default.nix
new file mode 100644
index 000000000000..b48e2696f09c
--- /dev/null
+++ b/nixpkgs/pkgs/tools/compression/gzip/default.nix
@@ -0,0 +1,72 @@
+{ lib, stdenv
+, fetchurl
+, makeWrapper
+, xz
+}:
+
+# Note: this package is used for bootstrapping fetchurl, and thus
+# cannot use fetchpatch! All mutable patches (generated by GitHub or
+# cgit) that are needed here should be included directly in Nixpkgs as
+# files.
+
+stdenv.mkDerivation rec {
+  pname = "gzip";
+  version = "1.13";
+
+  src = fetchurl {
+    url = "mirror://gnu/gzip/${pname}-${version}.tar.xz";
+    hash = "sha256-dFTraTXbF8ZlVXbC4bD6vv04tNCTbg+H9IzQYs6RoFc=";
+  };
+
+  outputs = [ "out" "man" "info" ];
+
+  enableParallelBuilding = true;
+
+  nativeBuildInputs = [ xz.bin makeWrapper ];
+
+  makeFlags = [
+    "SHELL=/bin/sh"
+    "GREP=grep"
+    # gzip 1.12 doesn't build `zless` unless it can find `less`, but we
+    # can avoid having `less` as a build input if we just override these.
+    "ZLESS_MAN=zless.1"
+    "ZLESS_PROG=zless"
+  ];
+
+  # Many gzip executables are shell scripts that depend upon other gzip
+  # executables being in $PATH.  Rather than try to re-write all the
+  # internal cross-references, just add $out/bin to PATH at the top of
+  # all the executables that are shell scripts.
+  preFixup = ''
+    sed -i '1{;/#!\/bin\/sh/aPATH="'$out'/bin:$PATH"
+    }' $out/bin/*
+  ''
+  # run gzip with "-n" when $GZIP_NO_TIMESTAMPS (set by stdenv's setup.sh) is set to stop gzip from adding timestamps
+  # to archive headers: https://github.com/NixOS/nixpkgs/issues/86348
+  # if changing so that there's no longer a .gzip-wrapped then update copy in make-bootstrap-tools.nix
+  + ''
+    wrapProgram $out/bin/gzip \
+      --add-flags "\''${GZIP_NO_TIMESTAMPS:+-n}"
+  '';
+
+  meta = {
+    homepage = "https://www.gnu.org/software/gzip/";
+    description = "GNU zip compression program";
+
+    longDescription =
+      ''gzip (GNU zip) is a popular data compression program written by
+        Jean-loup Gailly for the GNU project.  Mark Adler wrote the
+        decompression part.
+
+        We developed this program as a replacement for compress because of
+        the Unisys and IBM patents covering the LZW algorithm used by
+        compress.  These patents made it impossible for us to use compress,
+        and we needed a replacement.  The superior compression ratio of gzip
+        is just a bonus.
+      '';
+
+    platforms = lib.platforms.all;
+
+    license = lib.licenses.gpl3Plus;
+  };
+}