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-rw-r--r--pkgs/tools/compression/brotli/default.nix28
-rw-r--r--pkgs/tools/compression/bsc/default.nix17
-rw-r--r--pkgs/tools/compression/bsdiff/default.nix12
-rw-r--r--pkgs/tools/compression/dejsonlz4/default.nix48
-rw-r--r--pkgs/tools/compression/gzrt/default.nix12
-rw-r--r--pkgs/tools/compression/kzipmix/default.nix19
-rw-r--r--pkgs/tools/compression/lbzip2/default.nix4
-rw-r--r--pkgs/tools/compression/lhasa/default.nix19
-rw-r--r--pkgs/tools/compression/lrzip/default.nix11
-rw-r--r--pkgs/tools/compression/lzop/default.nix9
-rw-r--r--pkgs/tools/compression/pigz/default.nix28
-rw-r--r--pkgs/tools/compression/pixz/default.nix45
-rw-r--r--pkgs/tools/compression/pxz/_SC_ARG_MAX.patch36
-rw-r--r--pkgs/tools/compression/pxz/default.nix36
-rw-r--r--pkgs/tools/compression/rzip/default.nix17
-rw-r--r--pkgs/tools/compression/zsync/default.nix15
16 files changed, 176 insertions, 180 deletions
diff --git a/pkgs/tools/compression/brotli/default.nix b/pkgs/tools/compression/brotli/default.nix
index af0cbc4fe22..dfac5af0980 100644
--- a/pkgs/tools/compression/brotli/default.nix
+++ b/pkgs/tools/compression/brotli/default.nix
@@ -1,4 +1,8 @@
-{ lib, stdenv, fetchFromGitHub, cmake, fetchpatch
+{ lib
+, stdenv
+, fetchFromGitHub
+, cmake
+, fetchpatch
 , staticOnly ? stdenv.hostPlatform.isStatic
 }:
 
@@ -11,7 +15,7 @@ stdenv.mkDerivation rec {
   src = fetchFromGitHub {
     owner = "google";
     repo = "brotli";
-    rev = "v" + version;
+    rev = "v${version}";
     sha256 = "z6Dhrabav1MDQ4rAcXaDv0aN+qOoh9cvoXZqEWBB13c=";
   };
 
@@ -24,8 +28,7 @@ stdenv.mkDerivation rec {
     sha256 = "sOeXNVsCaBSD9i82GRUDrkyreGeQ7qaJWjjy/uLL0/0=";
   });
 
-  cmakeFlags = []
-    ++ lib.optional staticOnly "-DBUILD_SHARED_LIBS=OFF";
+  cmakeFlags = lib.optional staticOnly "-DBUILD_SHARED_LIBS=OFF";
 
   outputs = [ "out" "dev" "lib" ];
 
@@ -36,13 +39,13 @@ stdenv.mkDerivation rec {
   # This breaks on Darwin because our cmake hook tries to make a build folder
   # and the wonderful bazel BUILD file is already there (yay case-insensitivity?)
   prePatch = ''
-      rm BUILD
+    rm BUILD
 
-      # Upstream fixed this reference to runtime-path after the release
-      # and with this references g++ complains about invalid option -R
-      sed -i 's/ -R''${libdir}//' scripts/libbrotli*.pc.in
-      cat scripts/libbrotli*.pc.in
-    '';
+    # Upstream fixed this reference to runtime-path after the release
+    # and with this references g++ complains about invalid option -R
+    sed -i 's/ -R''${libdir}//' scripts/libbrotli*.pc.in
+    cat scripts/libbrotli*.pc.in
+  '';
 
   # Don't bother with "man" output for now,
   # it currently only makes the manpages hard to use.
@@ -53,10 +56,8 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with lib; {
-    inherit (src.meta) homepage;
-
+    homepage = "https://github.com/google/brotli";
     description = "A generic-purpose lossless compression algorithm and tool";
-
     longDescription =
       ''  Brotli is a generic-purpose lossless compression algorithm that
           compresses data using a combination of a modern variant of the LZ77
@@ -69,7 +70,6 @@ stdenv.mkDerivation rec {
           in the following internet draft:
           http://www.ietf.org/id/draft-alakuijala-brotli
       '';
-
     license = licenses.mit;
     maintainers = with maintainers; [ freezeboy ];
     platforms = platforms.all;
diff --git a/pkgs/tools/compression/bsc/default.nix b/pkgs/tools/compression/bsc/default.nix
index ac0c0544f01..93b715f853c 100644
--- a/pkgs/tools/compression/bsc/default.nix
+++ b/pkgs/tools/compression/bsc/default.nix
@@ -1,30 +1,31 @@
-{ lib, stdenv, fetchurl, openmp ? null }:
+{ lib, stdenv, fetchFromGitHub, openmp }:
 
 stdenv.mkDerivation rec {
   pname = "bsc";
   version = "3.1.0";
 
-  src = fetchurl {
-    url = "https://github.com/IlyaGrebnov/libbsc/archive/${version}.tar.gz";
-    sha256 = "01yhizaf6qjv1plyrx0fcib264maa5qwvgfvvid9rzlzj9fxjib6";
+  src = fetchFromGitHub {
+    owner = "IlyaGrebnov";
+    repo = "libbsc";
+    rev = version;
+    sha256 = "0c0jmirh9y23kyi1jnrm13sa3xsjn54jazfr84ag45pai279fciz";
   };
 
   enableParallelBuilding = true;
 
   buildInputs = lib.optional stdenv.isDarwin openmp;
 
-  prePatch = ''
+  postPatch = ''
     substituteInPlace makefile \
         --replace 'g++' '$(CXX)'
   '';
 
-  preInstall = ''
-    makeFlagsArray+=("PREFIX=$out")
-  '';
+  makeFlags = [ "PREFIX=$(out)" ];
 
   meta = with lib; {
     description = "High performance block-sorting data compression library";
     homepage = "http://libbsc.com/";
+    maintainers = with maintainers; [ ];
     # Later commits changed the licence to Apache2 (no release yet, though)
     license = with licenses; [ lgpl3Plus ];
     platforms = platforms.unix;
diff --git a/pkgs/tools/compression/bsdiff/default.nix b/pkgs/tools/compression/bsdiff/default.nix
index 8b5dfe919c7..8f8818781ab 100644
--- a/pkgs/tools/compression/bsdiff/default.nix
+++ b/pkgs/tools/compression/bsdiff/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "4.3";
 
   src = fetchurl {
-    url    = "https://www.daemonology.net/bsdiff/${pname}-${version}.tar.gz";
+    url = "https://www.daemonology.net/bsdiff/${pname}-${version}.tar.gz";
     sha256 = "0j2zm3z271x5aw63mwhr3vymzn45p2vvrlrpm9cz2nywna41b0hq";
   };
 
@@ -27,11 +27,11 @@ stdenv.mkDerivation rec {
     cp bspatch.1 $out/share/man/man1
   '';
 
-  meta = {
+  meta = with lib; {
     description = "An efficient binary diff/patch tool";
-    homepage    = "http://www.daemonology.net/bsdiff";
-    license     = lib.licenses.bsd2;
-    platforms   = lib.platforms.unix;
-    maintainers = [ lib.maintainers.thoughtpolice ];
+    homepage = "https://www.daemonology.net/bsdiff/";
+    license = licenses.bsd2;
+    platforms = platforms.unix;
+    maintainers = [ maintainers.thoughtpolice ];
   };
 }
diff --git a/pkgs/tools/compression/dejsonlz4/default.nix b/pkgs/tools/compression/dejsonlz4/default.nix
index 07b6a5979a4..0dd703035fa 100644
--- a/pkgs/tools/compression/dejsonlz4/default.nix
+++ b/pkgs/tools/compression/dejsonlz4/default.nix
@@ -1,28 +1,30 @@
 { lib, stdenv, fetchFromGitHub }:
+
 stdenv.mkDerivation rec {
-    pname = "dejsonlz4";
-    version = "1.1";
-    src = fetchFromGitHub {
-      owner = "avih";
-      repo = pname;
-      rev = "v${version}";
-      sha256 = "0ggs69qamaama5mid07mhp95m1x42wljdb953lrwfr7p8p6f8czh";
-    };
+  pname = "dejsonlz4";
+  version = "1.1";
+
+  src = fetchFromGitHub {
+    owner = "avih";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0ggs69qamaama5mid07mhp95m1x42wljdb953lrwfr7p8p6f8czh";
+  };
 
-    buildPhase = ''
-      ${stdenv.cc.targetPrefix}cc -o dejsonlz4 src/dejsonlz4.c src/lz4.c
-    '';
+  buildPhase = ''
+    ${stdenv.cc.targetPrefix}cc -o dejsonlz4 src/dejsonlz4.c src/lz4.c
+  '';
 
-    installPhase = ''
-      mkdir -p $out/bin/
-      cp dejsonlz4 $out/bin/
-    '';
+  installPhase = ''
+    mkdir -p $out/bin/
+    cp dejsonlz4 $out/bin/
+  '';
 
-    meta = with lib; {
-      description = "Decompress Mozilla Firefox bookmarks backup files";
-      homepage = "https://github.com/avih/dejsonlz4";
-      license = licenses.bsd2;
-      maintainers = with maintainers; [ mt-caret ];
-      platforms = platforms.all;
-    };
-  }
+  meta = with lib; {
+    description = "Decompress Mozilla Firefox bookmarks backup files";
+    homepage = "https://github.com/avih/dejsonlz4";
+    license = licenses.bsd2;
+    maintainers = with maintainers; [ mt-caret ];
+    platforms = platforms.all;
+  };
+}
diff --git a/pkgs/tools/compression/gzrt/default.nix b/pkgs/tools/compression/gzrt/default.nix
index 18efc1b64c2..664c1eb7856 100644
--- a/pkgs/tools/compression/gzrt/default.nix
+++ b/pkgs/tools/compression/gzrt/default.nix
@@ -1,10 +1,11 @@
 { lib, stdenv, fetchurl, zlib }:
 
 stdenv.mkDerivation rec {
-  name = "gzrt-0.8";
+  pname = "gzrt";
+  version = "0.8";
 
   src = fetchurl {
-    url = "https://www.urbanophile.com/arenn/coding/gzrt/${name}.tar.gz";
+    url = "https://www.urbanophile.com/arenn/coding/gzrt/gzrt-${version}.tar.gz";
     sha256 = "1vhzazj47xfpbfhzkwalz27cc0n5gazddmj3kynhk0yxv99xrdxh";
   };
 
@@ -15,10 +16,11 @@ stdenv.mkDerivation rec {
     cp gzrecover $out/bin
   '';
 
-  meta = {
+  meta = with lib; {
     homepage = "https://www.urbanophile.com/arenn/hacking/gzrt/";
     description = "The gzip Recovery Toolkit";
-    license = lib.licenses.gpl2Plus;
-    platforms = lib.platforms.unix;
+    maintainers = with maintainers; [ ];
+    license = licenses.gpl2Plus;
+    platforms = platforms.unix;
   };
 }
diff --git a/pkgs/tools/compression/kzipmix/default.nix b/pkgs/tools/compression/kzipmix/default.nix
index 73931f6bcae..9072a24b7fb 100644
--- a/pkgs/tools/compression/kzipmix/default.nix
+++ b/pkgs/tools/compression/kzipmix/default.nix
@@ -1,25 +1,26 @@
-{lib, stdenv, fetchurl}:
+{ lib, stdenv, fetchurl }:
 
-stdenv.mkDerivation {
-  name = "kzipmix-20091108";
+stdenv.mkDerivation rec {
+  pname = "kzipmix";
+  version = "20200115";
 
   src = fetchurl {
-    url = "http://static.jonof.id.au/dl/kenutils/kzipmix-20091108-linux.tar.gz";
-    sha256 = "19gyn8pblffdz1bf3xkbpzx8a8wn3xb0v411pqzmz5g5l6pm5gph";
+    url = "http://static.jonof.id.au/dl/kenutils/kzipmix-${version}-linux.tar.gz";
+    sha256 = "sha256-ePgye0D6/ED53zx6xffLnYhkjed7SPU4BLOZQr9E3yA=";
   };
 
   installPhase = ''
     mkdir -p $out/bin
-    cp kzip zipmix $out/bin
+    cp amd64/{kzip,zipmix} $out/bin
 
     patchelf --set-interpreter ${stdenv.glibc.out}/lib/ld-linux.so.2 $out/bin/kzip
     patchelf --set-interpreter ${stdenv.glibc.out}/lib/ld-linux.so.2 $out/bin/zipmix
   '';
 
-  meta = {
+  meta = with lib; {
     description = "A tool that aggressively optimizes the sizes of Zip archives";
-    license = lib.licenses.unfree;
+    license = licenses.unfree;
     homepage = "http://advsys.net/ken/utils.htm";
-    maintainers = [ lib.maintainers.sander ];
+    maintainers = [ maintainers.sander ];
   };
 }
diff --git a/pkgs/tools/compression/lbzip2/default.nix b/pkgs/tools/compression/lbzip2/default.nix
index ad36ebb81de..6d4017ac62c 100644
--- a/pkgs/tools/compression/lbzip2/default.nix
+++ b/pkgs/tools/compression/lbzip2/default.nix
@@ -1,14 +1,14 @@
 { lib, stdenv, fetchFromGitHub, gnulib, perl, autoconf, automake }:
 
 stdenv.mkDerivation rec {
+  pname = "lbzip2";
   version = "2.5";
-  name = "lbzip2-${version}";
 
   src = fetchFromGitHub {
     owner = "kjn";
     repo = "lbzip2";
-    sha256 = "1h321wva6fp6khz6x0i6rqb76xh327nw6v5jhgjpcckwdarj5jv8";
     rev = "v${version}";
+    sha256 = "1h321wva6fp6khz6x0i6rqb76xh327nw6v5jhgjpcckwdarj5jv8";
   };
 
   buildInputs = [ gnulib perl ];
diff --git a/pkgs/tools/compression/lhasa/default.nix b/pkgs/tools/compression/lhasa/default.nix
index 77df84879b8..4f1ba702831 100644
--- a/pkgs/tools/compression/lhasa/default.nix
+++ b/pkgs/tools/compression/lhasa/default.nix
@@ -1,21 +1,24 @@
-{lib, stdenv, fetchurl}:
+{ lib, stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+  pname = "lhasa";
+  version = "0.3.1";
 
-stdenv.mkDerivation {
-  name = "lhasa-0.3.1";
   src = fetchurl {
-    url = "https://soulsphere.org/projects/lhasa/lhasa-0.3.1.tar.gz";
+    url = "https://soulsphere.org/projects/lhasa/lhasa-${version}.tar.gz";
     sha256 = "092zi9av18ma20c6h9448k0bapvx2plnp292741dvfd9hmgqxc1z";
   };
-  meta = {
+
+  meta = with lib; {
     description = "Free Software replacement for the Unix LHA tool";
     longDescription = ''
       Lhasa is a Free Software replacement for the Unix LHA tool, for
       decompressing .lzh (LHA / LHarc) and .lzs (LArc) archives. The backend for
       the tool is a library, so that it can be reused for other purposes.
     '';
-    license = lib.licenses.isc;
+    license = licenses.isc;
     homepage = "http://fragglet.github.io/lhasa";
-    maintainers = with lib; [ maintainers.sander ];
-    platforms = with lib.platforms; linux ++ darwin;
+    maintainers = [ maintainers.sander ];
+    platforms = platforms.unix;
   };
 }
diff --git a/pkgs/tools/compression/lrzip/default.nix b/pkgs/tools/compression/lrzip/default.nix
index 820389300e3..02f62c3e3c0 100644
--- a/pkgs/tools/compression/lrzip/default.nix
+++ b/pkgs/tools/compression/lrzip/default.nix
@@ -1,8 +1,8 @@
-{lib, stdenv, fetchurl, zlib, lzo, bzip2, lz4, nasm, perl}:
+{ lib, stdenv, fetchurl, zlib, lzo, bzip2, lz4, nasm, perl }:
 
 stdenv.mkDerivation rec {
-  version = "0.641";
   pname = "lrzip";
+  version = "0.641";
 
   src = fetchurl {
     url = "http://ck.kolivas.org/apps/lrzip/${pname}-${version}.tar.xz";
@@ -15,10 +15,11 @@ stdenv.mkDerivation rec {
     "--disable-asm"
   ];
 
-  meta = {
+  meta = with lib; {
     homepage = "http://ck.kolivas.org/apps/lrzip/";
     description = "The CK LRZIP compression program (LZMA + RZIP)";
-    license = lib.licenses.gpl2Plus;
-    platforms = lib.platforms.unix;
+    maintainers = with maintainers; [ ];
+    license = licenses.gpl2Plus;
+    platforms = platforms.unix;
   };
 }
diff --git a/pkgs/tools/compression/lzop/default.nix b/pkgs/tools/compression/lzop/default.nix
index be31048c218..8bf58d9cc35 100644
--- a/pkgs/tools/compression/lzop/default.nix
+++ b/pkgs/tools/compression/lzop/default.nix
@@ -1,9 +1,11 @@
-{lib, stdenv, fetchurl, lzo}:
+{ lib, stdenv, fetchurl, lzo }:
 
 stdenv.mkDerivation rec {
-  name = "lzop-1.04";
+  pname = "lzop";
+  version = "1.04";
+
   src = fetchurl {
-    url = "https://www.lzop.org/download/${name}.tar.gz";
+    url = "https://www.lzop.org/download/lzop-${version}.tar.gz";
     sha256 = "0h9gb8q7y54m9mvy3jvsmxf21yx8fc3ylzh418hgbbv0i8mbcwky";
   };
 
@@ -12,6 +14,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     homepage = "http://www.lzop.org";
     description = "Fast file compressor";
+    maintainers = with maintainers; [ ];
     license = licenses.gpl2;
     platforms = platforms.unix;
   };
diff --git a/pkgs/tools/compression/pigz/default.nix b/pkgs/tools/compression/pigz/default.nix
index a4cdcc08549..6dbe190c400 100644
--- a/pkgs/tools/compression/pigz/default.nix
+++ b/pkgs/tools/compression/pigz/default.nix
@@ -1,36 +1,34 @@
 { lib, stdenv, fetchurl, zlib, util-linux }:
 
-let name = "pigz";
-    version = "2.6";
-in
-stdenv.mkDerivation {
-  name = name + "-" + version;
+stdenv.mkDerivation rec {
+  pname = "pigz";
+  version = "2.6";
 
   src = fetchurl {
-    url = "https://www.zlib.net/${name}/${name}-${version}.tar.gz";
+    url = "https://www.zlib.net/${pname}/${pname}-${version}.tar.gz";
     sha256 = "sha256-Lu17DXRJ0dcJA/KmLNYAXSYus6jJ6YaHvIy7WAnbKn0=";
   };
 
   enableParallelBuilding = true;
 
-  buildInputs = [zlib] ++ lib.optional stdenv.isLinux util-linux;
+  buildInputs = [ zlib ] ++ lib.optional stdenv.isLinux util-linux;
 
   makeFlags = [ "CC=${stdenv.cc}/bin/${stdenv.cc.targetPrefix}cc" ];
 
   doCheck = stdenv.isLinux;
   checkTarget = "tests";
-  installPhase =
-  ''
-      install -Dm755 pigz "$out/bin/pigz"
-      ln -s pigz "$out/bin/unpigz"
-      install -Dm755 pigz.1 "$out/share/man/man1/pigz.1"
-      ln -s pigz.1 "$out/share/man/man1/unpigz.1"
-      install -Dm755 pigz.pdf "$out/share/doc/pigz/pigz.pdf"
+  installPhase = ''
+    install -Dm755 pigz "$out/bin/pigz"
+    ln -s pigz "$out/bin/unpigz"
+    install -Dm755 pigz.1 "$out/share/man/man1/pigz.1"
+    ln -s pigz.1 "$out/share/man/man1/unpigz.1"
+    install -Dm755 pigz.pdf "$out/share/doc/pigz/pigz.pdf"
   '';
 
   meta = with lib; {
-    homepage = "http://www.zlib.net/pigz/";
+    homepage = "https://www.zlib.net/pigz/";
     description = "A parallel implementation of gzip for multi-core machines";
+    maintainers = with maintainers; [ ];
     license = licenses.zlib;
     platforms = platforms.unix;
   };
diff --git a/pkgs/tools/compression/pixz/default.nix b/pkgs/tools/compression/pixz/default.nix
index bb504e85f61..ec05a44a518 100644
--- a/pkgs/tools/compression/pixz/default.nix
+++ b/pkgs/tools/compression/pixz/default.nix
@@ -1,25 +1,42 @@
-{
-  lib, stdenv, fetchFromGitHub, autoconf, automake, libtool, pkg-config
-  , asciidoc, libxslt, libxml2, docbook_xml_dtd_45, docbook_xsl
-  , libarchive, xz
+{ lib
+, stdenv
+, fetchFromGitHub
+, autoconf
+, automake
+, libtool
+, pkg-config
+, asciidoc
+, libxslt
+, libxml2
+, docbook_xml_dtd_45
+, docbook_xsl
+, libarchive
+, xz
 }:
+
 stdenv.mkDerivation rec {
-  baseName = "pixz";
+  pname = "pixz";
   version = "1.0.7";
-  name = "${baseName}-${version}";
 
   nativeBuildInputs = [ pkg-config ];
   buildInputs = [
-    autoconf automake libtool asciidoc libxslt libxml2
-    docbook_xml_dtd_45 docbook_xsl
-    libarchive xz
+    autoconf
+    automake
+    libtool
+    asciidoc
+    libxslt
+    libxml2
+    docbook_xml_dtd_45
+    docbook_xsl
+    libarchive
+    xz
   ];
   preBuild = ''
     echo "XML_CATALOG_FILES='$XML_CATALOG_FILES'"
   '';
   src = fetchFromGitHub {
     owner = "vasi";
-    repo = baseName;
+    repo = pname;
     rev = "v${version}";
     sha256 = "163axxs22w7pghr786hda22mnlpvmi50hzhfr9axwyyjl9n41qs2";
   };
@@ -27,10 +44,10 @@ stdenv.mkDerivation rec {
     ./autogen.sh
   '';
 
-  meta = {
+  meta = with lib; {
     description = "A parallel compressor/decompressor for xz format";
-    license = lib.licenses.bsd2;
-    maintainers = [lib.maintainers.raskin];
-    platforms = lib.platforms.unix;
+    license = licenses.bsd2;
+    maintainers = [ maintainers.raskin ];
+    platforms = platforms.unix;
   };
 }
diff --git a/pkgs/tools/compression/pxz/_SC_ARG_MAX.patch b/pkgs/tools/compression/pxz/_SC_ARG_MAX.patch
deleted file mode 100644
index fac8f1fc147..00000000000
--- a/pkgs/tools/compression/pxz/_SC_ARG_MAX.patch
+++ /dev/null
@@ -1,36 +0,0 @@
-From b8f9827fc4de9296c7a6f5e6fdac46e070cd6cb4 Mon Sep 17 00:00:00 2001
-From: Igor Pashev <pashev.igor@gmail.com>
-Date: Sat, 1 Nov 2014 18:10:05 +0300
-Subject: [PATCH] Fixed crash on Linux when stack size is unlimited
-
----
- pxz.c | 7 +++++--
- 1 file changed, 5 insertions(+), 2 deletions(-)
-
-diff --git a/pxz.c b/pxz.c
-index 9cb843e..52713e2 100644
---- a/pxz.c
-+++ b/pxz.c
-@@ -65,7 +65,7 @@ FILE **ftemp;
- char str[0x100];
- char buf[BUFFSIZE];
- char *xzcmd;
--size_t xzcmd_max;
-+const size_t xzcmd_max = 10240;
- 
- unsigned opt_complevel = 6, opt_stdout, opt_keep, opt_threads, opt_verbose;
- unsigned opt_force, opt_stdout;
-@@ -243,9 +243,12 @@ int main( int argc, char **argv ) {
- 	lzma_filter filters[LZMA_FILTERS_MAX + 1];
- 	lzma_options_lzma lzma_options;
- 	
--	xzcmd_max = sysconf(_SC_ARG_MAX);
- 	page_size = sysconf(_SC_PAGE_SIZE);
- 	xzcmd = malloc(xzcmd_max);
-+	if (!xzcmd) {
-+		fprintf(stderr, "Failed to allocate %lu bytes for xz command.\n", xzcmd_max);
-+		return -1;
-+	}
- 	snprintf(xzcmd, xzcmd_max, XZ_BINARY);
- 	
- 	parse_args(argc, argv);
diff --git a/pkgs/tools/compression/pxz/default.nix b/pkgs/tools/compression/pxz/default.nix
index eb1f5d3570b..4ea95a3f78a 100644
--- a/pkgs/tools/compression/pxz/default.nix
+++ b/pkgs/tools/compression/pxz/default.nix
@@ -1,21 +1,18 @@
-{ lib, stdenv, fetchgit, xz }:
+{ lib, stdenv, fetchFromGitHub, xz }:
 
-let name = "pxz";
-    version = "4.999.9beta+git";
-in
-stdenv.mkDerivation {
-  name = name + "-" + version;
+stdenv.mkDerivation rec {
+  pname = "pxz";
+  version = "4.999.9beta+git";
 
-  src = fetchgit {
-    url = "https://github.com/jnovy/pxz.git";
-    rev = "ae808463c2950edfdedb8fb49f95006db0a18667";
-    sha256 = "0na2kw8cf0qd8l1aywlv9m3xrxnqlcwxfdwp3f7x9vxwqx3k32kc";
+  src = fetchFromGitHub {
+    owner = "jnovy";
+    repo = "pxz";
+    rev = "124382a6d0832b13b7c091f72264f8f3f463070a";
+    sha256 = "15mmv832iqsqwigidvwnf0nyivxf0y8m22j2szy4h0xr76x4z21m";
   };
 
   buildInputs = [ xz ];
 
-  patches = [ ./_SC_ARG_MAX.patch ];
-
   buildPhase = ''
     gcc -o pxz pxz.c -llzma \
         -fopenmp -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -O2 \
@@ -30,15 +27,18 @@ stdenv.mkDerivation {
     cp pxz.1 $out/share/man/man1
   '';
 
-  meta = {
+  meta = with lib; {
     homepage = "https://jnovy.fedorapeople.org/pxz/";
-    license = lib.licenses.gpl2Plus;
-    maintainers = with lib.maintainers; [pashev];
-    description = ''Parallel XZ is a compression utility that takes advantage of
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ pashev ];
+    description = "compression utility that runs LZMA compression of different parts on multiple cores simultaneously";
+    longDescription = ''
+      Parallel XZ is a compression utility that takes advantage of
       running LZMA compression of different parts of an input file on multiple
       cores and processors simultaneously. Its primary goal is to utilize all
       resources to speed up compression time with minimal possible influence
-      on compression ratio'';
-    platforms = with lib.platforms; linux;
+      on compression ratio
+    '';
+    platforms = with platforms; linux;
   };
 }
diff --git a/pkgs/tools/compression/rzip/default.nix b/pkgs/tools/compression/rzip/default.nix
index 60364afa9f3..5f878f8c494 100644
--- a/pkgs/tools/compression/rzip/default.nix
+++ b/pkgs/tools/compression/rzip/default.nix
@@ -1,9 +1,11 @@
-{lib, stdenv, fetchurl, fetchpatch, bzip2}:
+{ lib, stdenv, fetchurl, fetchpatch, bzip2 }:
+
+stdenv.mkDerivation rec {
+  pname = "rzip";
+  version = "2.1";
 
-stdenv.mkDerivation {
-  name = "rzip-2.1";
   src = fetchurl {
-    url = "mirror://samba/rzip/rzip-2.1.tar.gz";
+    url = "mirror://samba/rzip/rzip-${version}.tar.gz";
     sha256 = "4bb96f4d58ccf16749ed3f836957ce97dbcff3e3ee5fd50266229a48f89815b7";
   };
   buildInputs = [ bzip2 ];
@@ -16,10 +18,11 @@ stdenv.mkDerivation {
     })
   ];
 
-  meta = {
+  meta = with lib; {
     homepage = "https://rzip.samba.org/";
     description = "Compression program";
-    license = lib.licenses.gpl2Plus;
-    platforms = lib.platforms.unix;
+    maintainers = with maintainers; [ ];
+    license = licenses.gpl2Plus;
+    platforms = platforms.unix;
   };
 }
diff --git a/pkgs/tools/compression/zsync/default.nix b/pkgs/tools/compression/zsync/default.nix
index 94921397e30..b92112a4816 100644
--- a/pkgs/tools/compression/zsync/default.nix
+++ b/pkgs/tools/compression/zsync/default.nix
@@ -1,20 +1,21 @@
-{lib, stdenv, fetchurl}:
+{ lib, stdenv, fetchurl }:
 
 stdenv.mkDerivation rec {
-  name = "zsync-0.6.2";
+  pname = "zsync";
+  version = "0.6.2";
 
   src = fetchurl {
-    url = "http://zsync.moria.org.uk/download/${name}.tar.bz2";
+    url = "http://zsync.moria.org.uk/download/${pname}-${version}.tar.bz2";
     sha256 = "1wjslvfy76szf0mgg2i9y9q30858xyjn6v2acc24zal76d1m778b";
   };
 
   makeFlags = [ "AR=${stdenv.cc.bintools.targetPrefix}ar" ];
 
-  meta = {
+  meta = with lib; {
     homepage = "http://zsync.moria.org.uk/";
     description = "File distribution system using the rsync algorithm";
-    license = lib.licenses.free;
-    maintainers = with lib.maintainers; [viric];
-    platforms = with lib.platforms; all;
+    license = licenses.free;
+    maintainers = with maintainers; [ viric ];
+    platforms = with platforms; all;
   };
 }