chainshit.pp

# This is terrible practice. Instead, you should set up a repo locally and build packages
# to drop in there. RPM and deb files are approaching trivial to make unless you need to
# customize them heavily.

exec { 'build nginx':                                                 # just a name
    command => "tar -xvzf $file; cd $dir; make; make install",        # build & install the package
    onlyif  => "wget $url",                                           # but only if the download succeeds
    creates => '/path/to/installed/nginx',                            # and only if the installed file doesn't already exist
    cwd     => '/tmp',
    path    => '/usr/bin:/bin:...',
}


# alternatively, you could chain multiple resource but that's even more evil.
exec { "wget $url": }
-> exec { "tar -xzf $file": }
-> exec { "make": }
-> exec { "make install": }


############################################################################################
# The right way is just
apt::source { 'myrepo':
    location  => 'http://my.repo.com',
    repos     => 'main',
}

package { 'nginx':
    ensure  => present,
    require => Apt::Source['myrepo'],
}