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#!/usr/bin/perl
# convert_mbox.pl
# perl script to convert mbox file to files in a new MH directory
# aka another mbox -> MH conversion tool
# 29 April 2003
# Fred Marton <Fred.Marton@uni-bayreuth.de>
#
# Fixed (hopefully) to account for From lines
# that are of various length and that might have
# time zone info at the end
# 20 January 2004
#
# Note: Running this with the -w flag generates the following warnings:
# Scalar value @word[1] better written as $word[1] at /path/to/convert_mbox.pl line 54
# Scalar value @word[0] better written as $word[1] at /path/to/convert_mbox.pl line 56
# Making these changes requires further changes in the script
# that results in much longer run-times.
#
# Copyright (c) 2003 Fred Marton
# Copyright (c) 2009 Ricardo Mones, based on the bash script
# by Daniel Dickinson [1]
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 3
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
#
# [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=15;filename=convert_mbox.sh;att=1;bug=461435
use File::Path;
use File::Basename;
# check for arguments
&usage if ($#ARGV < 1);
if ($ARGV[0] eq "-R") {
# recursive, need more args
&usage if ($#ARGV < 2);
&usage unless (-d $ARGV[1]);
&usage unless (-d $ARGV[2]);
&convert_all ($ARGV[1], $ARGV[2]);
}
else {
# default behaviour
&convert_mbox ($ARGV[0], $$ARGV[1]);
}
sub strip_sbd {
# raw translation of bash, probably doable in real Perl better
$dirname = shift;
$nosbddir = "";
$dirleft = $dirname;
while ($dirleft ne "." and $dirleft ne "") {
$enddir = &basename ($dirleft, ['.sbd']);
if ($nosbddir ne "") {
$nosbddir = "$enddir/$nosbddir";
}
else {
$nosbddir = $enddir;
}
$dirleft = &dirname ($dirleft);
}
print "$nosbddir\n";
}
sub convert_all {
($mboxdir, $targetdir) = @_;
$tmpbase = '/tmp/frommbox';
$tmplist = '/tmp/.convert_mbox.filelist';
$curdir = qx/pwd/;
chdir ($mboxdir);
qx/find * -type -d -a ! -name '*.*'i | sort > $tmplist/;
open (FLH, "<$tmplist") or die "cannot open $tmplist: $!\n";
while (<FLH>) {
chomp;
&convert_one ($_, $targetdir, $tmpbase);
}
close (FLH);
unlink ($tmplist);
chdir ($curdir);
}
sub convert_one {
# targetdir isn't used in the original bash script, maybe a bug?
($file, $targetdir, $tmpbase) = @_;
$dirname = &dirname ($file);
$filename = &basename ($file);
if ($dirname eq $filename) {
$dirname = "";
}
$dirname = &strip_sbd ($dirname);
if ($dirname ne "") {
$dirname = "/$dirname";
}
&mkpath ($tmpbase . $dirname);
$basefile = &basename ($file);
$base1 = &basename ($file, ['.cmeta']);
$base2 = &basename ($base1, ['.ibex.index']);
$base3 = &basename ($base2, ['.ibex.index.data']);
$base5 = &basename ($base3, ['.ev-summary']);
$base4 = &basename ($base5, ['.ev-summary-meta']);
$subdir = &basename ($dirname);
$basedir = "/" . &dirname ($dirname);
if ( $basedir eq '/.' or $basedir eq '/' ) {
$basedir = $dirname;
$subdir = "";
}
$basedir = $tmpbase . $basedir;
&mkpath ($basedir);
$dirisfile = 0;
if ( -f "$basedir/$subdir" ) {
$dirisfile = 1;
qx/mv \"$basedir\/$subdir\" \"$basedir\/$subdir.tmp\"/;
&mkpath ("$basedir/$subdir");
}
if ( ! -d "$basedir/$subdir/$base4" ) {
print "$basedir/$subdir/$base4\n";
&convert_mbox ($file, "$basedir/$subdir/$base4", 'quiet');
if ($dirisfile == 1) {
qx/mv \"$basedir\/$subdir.tmp\/*\" \"$basedir\/$subdir\/\"/;
}
}
}
sub convert_mbox {
($mbox, $mh, $quiet) = @_;
# check to make sure there isn't something named MH already
if (-e $mh) {
die (" The directory \"$mh\" already exists. Exiting.\n");
}
else {
mkdir $mh;
}
# start numbering
$i = 0;
# open the mbox file
open (IN, $mbox);
while ($line = <IN>) {
# check for the beginning of an e-mail
@word = split(/ +/m,$line);
# some lines might start with "From ", so check
# to see if the [second-to-]last word is a year
@word2 = split(/:/,$line);
chomp($word2[$#word2]);
@word3 = split(/ /,$word2[2]);
$year = @word3[1];
# ignore the MAILER-DAEMON message from pine
if (@word[1] ne "MAILER-DAEMON") {
# start a new file, assuming $year is > 1970
if (@word[0] eq "From" && $year > 1970) {
$i++;
close (OUT);
open (OUT, ">$mh/$i");
print OUT $line;
}
else {
# continue the file
print OUT $line;
}
}
}
close (OUT);
close (IN);
# and we're done
if (! defined($quiet)) {
print "\n If it isn't there already, please move the directory \"$mh\"\n"
. " into your MH directory and rebuild your folder tree.\n\n";
}
}
sub usage {
die ("Usage: convert_mbox.pl MBOX MH_DIR\n"
. " convert_mbox.pl -R MBOXDIR MH_DIR\n"
. "Where: \n"
. " -R Converts recursively a directory of mboxes\n");
}
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