View source for Podcast Synch Batch File

=Background=

Not finding a good way to manage my podcasts on my Sansa e250 and I'm already manually dumping files from iTunes anyway (my choice).

Next step I plan to write something that checks:
* Cleanup the code
* Make a playlist (by directory or by group?)
* <s>Does file exist in both places - don't copy</s>
* <s>Does file exist in dest and not in source - del dest</s>
* <s>Does file exist in source and not in dest - copy source</s>
* <s>Implement create directory if not exist routine</s>
* <s>Read the Sansa On The Go Playlist and delete files that are found</s>
* <s>Make dest drive setting value</s>
* '''REMOVED''' <s>Check ID3 tag and set if blank</s> - see [[&johncdvorak]]


=Script Test=
Pre-removal of the ANSI Win32 Color references.
[[Image:SubDir.jpg]]

=Perl Script=

Removed the MP3:: info/tag routines and also the Win32 references.  That should make it cross platform.

<pre>#!/usr/local/bin/perl
use warnings;
use strict;

use File::Copy;     #http://perldoc.perl.org/File/Copy.html
use Cwd;            #http://perldoc.perl.org/Cwd.html

#################################################################
#######################USER VARIABLES############################
#################################################################

my $podcastsource="C:/Documents and Settings/Mike/My Documents/My Music/Podcasts";

#################################################################

#################################################################
########################System Variables ########################
#################################################################

my $dircontents=();
my $destdir=();
my @newfile=();
my $newfile=();
my @newfiles=();
my @files=();
my $file=();
my $directorytmp=();
my $directory1tmp=();
my $directory2make=();
my @directory2make=();

###########################################################################
# Run the script from the portable and it will determine its current path #
###########################################################################
my $dir = cwd;
$dir =~ s/\///g;
my $LOGFILE_IN="$dir/PLAYLISTS/On The Go.plp";
my $podcastdest="$dir/MUSIC/Podcasts";

#################################################################
######################## Start Processing #######################
#################################################################

print "#################################################################\n";
print "Portable Player Drive is $dir\n";
print "On The Go.plp set to $LOGFILE_IN\n";
print "Music directory is at $podcastdest\n";
print "#################################################################\n\n";
print "Reading On The Go.plp for files to remove from portable:\n";
&OnTheGo;
print "#################################################################\n\n";
print  "Checking source files to move to destination:\n";
&movefiles($podcastsource); #Check what is in the source and not in the dest - copy to dest
print "#################################################################\n\n";
print  "Checking for files removed from source:\n";
&smash($podcastdest);  #Check what is in the dest and not in the source - del from dest
print "#################################################################\n\n";
print "Done\n";

#################################################################
######################### End Processing ########################
#################################################################

#################################################################
######################### Subroutines ########################
#################################################################

sub OnTheGo
    {
    if(-e "$LOGFILE_IN")
        {
        open LOGFILE_IN, $LOGFILE_IN or warn "Cannot open $LOGFILE_IN for read :$!";
        binmode(LOGFILE_IN);    # I need to learn more about binmode
        while (<LOGFILE_IN>) 
            {
            my $tmp=$_;         #Strip out characters and make data usable
            $tmp =~ s/\0//g;
            $tmp =~ s/\015//g;
            $tmp =~ s/\012//g;
            $tmp =~ s/HARP, /$dir\//;
            $tmp =~ s/\\/\//g;
            
            if ($tmp =~ /$dir/) #Find out if the file exists and delete both copies
                {
                if ($tmp =~ m/($podcastdest)\/(.+)/)
                    {
                    my $file=$2;
                    if(-e "$podcastsource/$file")
                        {
                        $file="$podcastsource/$file";
                        unlink ($file) or warn "Cannot del $file: $!";
                        print "Deleted $file\n";    #local hard drive                    
                        unlink ($tmp) or warn "Cannot del $tmp: $!"; 
                        print "Deleted $tmp\n";     #Sansa
                        }
                    }
                }
            }
        &deleteplaylist;
        }
    }
	
sub makedest
    {	        #Make directories
    my $destdirectory=$destdir;
    @directory2make = split(/\//, $destdirectory);
    shift (@directory2make); #drop the first
    $directorytmp="";
    $directory1tmp="";

    foreach $directory2make (@directory2make)
        {
        $directory1tmp="$directory1tmp\/$directory2make";
        $directorytmp="$dir$directory1tmp";
        if(!-e $directorytmp)
            {
            print "Did not find $directorytmp\n";                    
            mkdir ("$directorytmp") or die "Cannot make $directorytmp :$!";		    #incoming logs go here
            print "Created $directorytmp\n";    
            }
        } # end for each
	} 

sub movefiles 
    {           
    my $dir = shift;
    
    opendir DIR, $dir or return;
    my @contents =
    map "$dir/$_",
    sort grep !/^\.\.?$/,
    readdir DIR;
    closedir DIR;
    
    foreach (@contents) 
        {
        next unless !-l && -d;
        &movefiles($_);
        $dircontents=$_;
        &createcontents($dircontents);
        rmdir $_;
      }
    }
    
sub createcontents
    {
    opendir(DIR, "$dircontents") or die "Cannot open $dircontents to read: $!";
    @newfiles = grep(/\.mp3$/ ,readdir(DIR));
    closedir(DIR);
    foreach $newfile (@newfiles) 
        {
        if ($dircontents =~ m/($podcastsource)\/(.+)/)
            {
            $destdir="$podcastdest/$2";
            my $testdir="$destdir/$newfile";
            
            if(!-e $testdir)
                {
               if(!-e $destdir)  #check to see if dest exists, if not, create the dir   
                   {
                   &makedest($destdir);
                   }
                my $filetobecopied = "$podcastsource/$2/$newfile";
                my $oldfile = "$podcastdest/$2/$newfile";
                print "Copying $newfile\n";
                copy($filetobecopied, $oldfile) or die "File cannot be copied.";    
                }
            }
        }
    }



sub smash # Hulk Smash. Hulk destroy directory (calls destroy files also)
    {  
    my $dir = shift;
    opendir DIR, $dir or return;
    my @contents =
    map "$dir/$_",
    sort grep !/^\.\.?$/,
    readdir DIR;
    closedir DIR;
    
    foreach (@contents) 
        {
        next unless !-l && -d;
        &smash($_);
        $dircontents=$_;
        &destroycontents($dircontents);
        rmdir $_;
        }
    }
    
sub destroycontents
    {
    opendir(DIR, "$dircontents") or die "Cannot open $dircontents to read: $!";
    @files = grep(/\.mp3$/,readdir(DIR));
    closedir(DIR);
    foreach $file (@files) 
        {
        if ($dircontents =~ m/($podcastdest)\/(.+)/)
            {
            if(!-e "$podcastsource/$2/$file")
                {
                my $del="$podcastdest/$2/$file";
                unlink ($del);      
                print "$del\n";                
                }
            }
        }
    }

sub deleteplaylist
    {
    if(-e "$LOGFILE_IN")
        {
        if(-w $LOGFILE_IN)
            {
            close LOGFILE_IN or warn "Cannot CLOSE $LOGFILE_IN: $!";;
            unlink $LOGFILE_IN or warn "Cannot del $LOGFILE_IN: $!"; #remove the list
            print "Cleared $LOGFILE_IN\n";
            }
        }   
    }
</pre>

=BAT file=
Here is an old synch.bat to del all files in the Podcasts directory on the Sansa and then xcopy everything in the iTunes Podcasts directory.  It's not quick, but it works.

<pre>
echo off
cls
del "g:\music\podcasts\*" /S /Q
xcopy "D:\music\Ipod\Podcasts\*.mp3" /S "g:\music\Podcasts\"
</pre>

=Autoplay Handler=
Under Windows, I added an AutoPlay handler (directions [http://windowsxp.mvps.org/addautoplay.htm here]).  Now when connected, synchronization is possible from the popup window.

[[Image:EventAutoHandler sansa.jpg]]

[[Category:Perl]]
[[Category:Podcasts]]