45 lines
1.7 KiB
Nix
45 lines
1.7 KiB
Nix
{ fetchurl, stdenv, perl, makeWrapper, procps }:
|
|
|
|
stdenv.mkDerivation rec {
|
|
name = "parallel-20170722";
|
|
|
|
src = fetchurl {
|
|
url = "mirror://gnu/parallel/${name}.tar.bz2";
|
|
sha256 = "117g50bx1kcbrqix0f1539z5rzhvgsni2wddjv939wcxkrdb1idx";
|
|
};
|
|
|
|
nativeBuildInputs = [ makeWrapper perl ];
|
|
|
|
postInstall = ''
|
|
wrapProgram $out/bin/parallel \
|
|
${if stdenv.isLinux then ("--prefix PATH \":\" ${procps}/bin") else ""} \
|
|
--prefix PATH : "${perl}/bin" \
|
|
'';
|
|
|
|
doCheck = true;
|
|
|
|
meta = with stdenv.lib; {
|
|
description = "Shell tool for executing jobs in parallel";
|
|
longDescription =
|
|
'' GNU Parallel is a shell tool for executing jobs in parallel. A job
|
|
is typically a single command or a small script that has to be run
|
|
for each of the lines in the input. The typical input is a list of
|
|
files, a list of hosts, a list of users, or a list of tables.
|
|
|
|
If you use xargs today you will find GNU Parallel very easy to use.
|
|
If you write loops in shell, you will find GNU Parallel may be able
|
|
to replace most of the loops and make them run faster by running
|
|
jobs in parallel. If you use ppss or pexec you will find GNU
|
|
Parallel will often make the command easier to read.
|
|
|
|
GNU Parallel makes sure output from the commands is the same output
|
|
as you would get had you run the commands sequentially. This makes
|
|
it possible to use output from GNU Parallel as input for other
|
|
programs.
|
|
'';
|
|
homepage = http://www.gnu.org/software/parallel/;
|
|
license = licenses.gpl3Plus;
|
|
platforms = platforms.all;
|
|
maintainers = with maintainers; [ pSub vrthra ];
|
|
};
|
|
}
|