nixpkgs/pkgs/tools/system/fcron/default.nix

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# I've only worked on this till it compiled and worked. So maybe there are some things which should be done but I've missed
# restart using 'killall -TERM fcron; fcron -b
# use convert-fcrontab to update fcrontab files
args:
args.stdenv.mkDerivation {
name = "fcron-3.0.4";
src = args.fetchurl {
url = http://fcron.free.fr/archives/fcron-3.0.4.src.tar.gz;
sha256 = "15kgphsfa0nqgjd8yxyz947x2xyljj4iyh298kw4c8bz6iznqxn8";
};
buildInputs =(with args; [perl]);
configureFlags = [ "--with-sendmail=/var/setuid-wrappers/sendmail"
"--with-editor=/var/run/current-system/sw/bin/vi"
"--with-bootinstall=no"
"--sysconfdir=/etc"
# fcron would have been default user/grp
"--with-username=root"
"--with-groupname=root"
];
installTargets = "install-staged"; # install does also try to change permissions of /etc/* files
preConfigure = ''
sed -i 's@/usr/bin/env perl@${args.perl}/bin/perl@g' configure
# Don't let fcron create the group fcron, nix(os) should do this
sed -i '2s@.*@exit 0@' script/user-group
# --with-bootinstall=no shoud do this, didn't work. So just exit the script before doing anything
sed -i '2s@.*@exit 0@' script/boot-install
# also don't use chown or chgrp for documentation (or whatever) when installing
find -type f | xargs sed -i -e 's@^\(\s\)*chown@\1:@' -e 's@^\(\s\)*chgrp@\1:@'
'';
patchPhase = ''
# don't try to create /etc/fcron.{allow,deny,conf}
sed -i -e 's@test -f $(DESTDIR)$(ETC)/fcron.conf @ # @' \
-e 's@if test ! -f $(DESTDIR)$(ETC)/fcron.allow@ # @' Makefile.in
'';
meta = {
description="A command scheduler with extended capabilities over cron and anacron";
homepage = http://fcron.free.fr;
license = "GPLv2";
};
}