52 lines
1.6 KiB
Nix
52 lines
1.6 KiB
Nix
{ fetchurl, stdenv, perl }:
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stdenv.mkDerivation rec {
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name = "parallel-20111122";
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src = fetchurl {
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url = "mirror://gnu/parallel/${name}.tar.bz2";
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sha256 = "1czcflprhbhyj3mj7dc986gll0kfc6n8qiqazclph172rbq3acpd";
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};
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patchPhase =
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'' sed -i "src/parallel" -e's|/usr/bin/perl|${perl}/bin/perl|g'
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'';
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preBuild =
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# The `sem' program wants to write to `~/.parallel'.
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'' export HOME="$PWD"
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'';
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buildInputs = [ perl ];
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doCheck = true;
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meta = {
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description = "GNU Parallel, a 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 = "GPLv3+";
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platforms = stdenv.lib.platforms.all;
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maintainers = [ stdenv.lib.maintainers.ludo ];
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};
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}
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