mirror of
https://github.com/SebastianWendel/nixpkgs.git
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46 lines
1.7 KiB
Nix
46 lines
1.7 KiB
Nix
{ fetchurl, stdenv, perl, makeWrapper, procps }:
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stdenv.mkDerivation rec {
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name = "parallel-20170422";
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src = fetchurl {
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url = "mirror://gnu/parallel/${name}.tar.bz2";
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sha256 = "0afk1q8mqzz02h6imyykgi9gwk5gj08hzs6lwgd65ilj4slkh93s";
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};
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nativeBuildInputs = [ makeWrapper perl ];
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postInstall = ''
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wrapProgram $out/bin/parallel \
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${if stdenv.isLinux then ("--prefix PATH \":\" ${procps}/bin") else ""} \
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--prefix PATH : "${perl}/bin" \
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'';
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doCheck = true;
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meta = with stdenv.lib; {
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description = "Shell tool for executing jobs in parallel";
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longDescription =
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'' GNU Parallel is a shell tool for executing jobs in parallel. A job
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is typically a single command or a small script that has to be run
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for each of the lines in the input. The typical input is a list of
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files, a list of hosts, a list of users, or a list of tables.
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If you use xargs today you will find GNU Parallel very easy to use.
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If you write loops in shell, you will find GNU Parallel may be able
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to replace most of the loops and make them run faster by running
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jobs in parallel. If you use ppss or pexec you will find GNU
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Parallel will often make the command easier to read.
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GNU Parallel makes sure output from the commands is the same output
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as you would get had you run the commands sequentially. This makes
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it possible to use output from GNU Parallel as input for other
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programs.
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'';
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homepage = http://www.gnu.org/software/parallel/;
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license = licenses.gpl3Plus;
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platforms = platforms.all;
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maintainers = with maintainers; [ pSub vrthra ];
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};
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}
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