IcculusFinger_planmove.pl
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#!/usr/bin/perl -w
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#-----------------------------------------------------------------------------
#
# Copyright (C) 2002 Ryan C. Gordon (icculus@icculus.org)
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
#-----------------------------------------------------------------------------
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use strict;
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use warnings;
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use File::Copy;
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#-----------------------------------------------------------------------------#
# CONFIGURATION VARIABLES: Change to suit your needs... #
#-----------------------------------------------------------------------------#
# Where the home dirs reside. $homebasedir/username/.plan is where we look...
# Note that THIS MUST NOT HAVE THE TRAILING DIR SEPARATOR!
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my $homebasedir = '/home';
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# This is the directory to move planfiles to. Note that THIS MUST NOT HAVE
# THE TRAILING DIR SEPARATOR!
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my $fingerspace = '/fingerspace';
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#-----------------------------------------------------------------------------#
# The rest is probably okay without you laying yer dirty mits on it. #
#-----------------------------------------------------------------------------#
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sub chown_by_name {
my($user, $file) = @_;
chown((getpwnam($user))[2], (getpwnam('root'))[3], $file) == 1 or
die("chown on $file failed: $!\n");
}
sub check_dir {
my $user = shift;
my $nofingerpath = "$homebasedir/$user/.nofinger";
my $homepath = "$homebasedir/$user/.plan";
my $fingerpath = "$fingerspace/$user";
if (($user eq '.') or ($user eq '..')) {
return;
}
if (not -d "$homebasedir/$user") {
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return if ($user eq '.keep'); # gentoo fix.
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print(" - $homebasedir/$user isn't a directory. Wierd.\n");
return;
}
# ...since the user can WRITE to an existing file, but not create one
# in the fingerspace, we need to create it if it doesn't exist...
if (not -e $fingerpath) {
print(" + Creating $fingerpath ...\n");
# God, I'm lazy. :)
`touch $fingerpath`;
if (not -e $fingerpath) {
print("Failed to create.\n");
return;
}
}
# always fix permissions ...
chmod(0644, $fingerpath) or die("Failed to chmod $fingerpath: $!\n");
chown_by_name($user, $fingerpath);
if (not -e $homepath) {
print(" + symlinking missing file $homepath to $fingerpath ...\n");
symlink($fingerpath, $homepath) or die("symlink failed: $!\n");
return;
}
# (For now, we'll assume that a symlink means we've moved it already.)
if (-l $homepath) {
if (readlink($homepath) ne $fingerpath) {
print(" - There's an UNEXPECTED SYMLINK at $homepath ...\n");
}
return;
}
if (-d $homepath) {
print(" - Uh...there's a DIRECTORY at $homepath ...\n");
return;
}
if (-d $fingerpath) {
print(" - Uh...there's a DIRECTORY at $fingerpath ...\n");
return;
}
if (-e $nofingerpath) {
print(" - $nofingerpath exists. Explicitly skipping ...\n");
return;
}
print(" + Moving $homepath to $fingerpath ... \n");
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move($homepath, $fingerpath) or die("move failed: $!\n");
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symlink($fingerpath, $homepath) or die("symlink failed: $!\n");
}
# the mainline ...
opendir(DIRH, $homebasedir) or die("Can't open $homebasedir: $!\n");
my @homedirs = readdir(DIRH);
closedir(DIRH);
foreach (@homedirs) {
check_dir($_);
}
# end of IcculusFinger_planmove.pl ...