376 lines
8.3 KiB
Plaintext
376 lines
8.3 KiB
Plaintext
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#!/usr/bin/perl -w
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# datename - Automatically rename a large group of files to have dates in their
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# names.
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#
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# This script is for renaming many files (e.g. files downloaded from a digital
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# camera) to have dates as their file names, e.g. from 2009-12-25_001.jpg to
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# 2009-12-25_058.jpg
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#
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# Usage: datename [options] <files>
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# See `datename -?` for more help.
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#
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# --Kirsle
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# http://sh.kirsle.net/
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use strict;
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use warnings;
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use Getopt::Long;
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use File::Copy;
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our $version = "1.0 Feb 23 2009";
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unless (@ARGV) {
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print "Usage: datename [options] [files]\n"
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. "Try `datename -?` for help.\n";
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exit(1);
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}
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our %c = (
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r => "\e[31m",
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g => "\e[32m",
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c => "\e[34m",
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o => "\e[0m",
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);
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##############################
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# Collect Options #
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##############################
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my @lt = localtime(time());
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my $today = join("-",
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sprintf("%04d", ($lt[5] + 1900)),
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sprintf("%02d", ($lt[4] + 1)),
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sprintf("%02d", ($lt[3])),
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);
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my $o = {
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help => 0,
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format => undef,
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date => undef,
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start => 1,
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force => 0,
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backup => "./datename-backup",
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nobackup => 0,
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mono => 0,
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};
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GetOptions (
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'help|h|?' => \$o->{help},
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'format|f=s' => \$o->{format},
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'date|d=s' => \$o->{date},
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'start|s=i' => \$o->{start},
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'backup|b=s' => \$o->{backup},
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'nobackup' => \$o->{nobackup},
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'force' => \$o->{force},
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'monotone|mono|m' => \$o->{mono},
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);
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if ($o->{help}) {
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&help();
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}
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if ($o->{mono}) {
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foreach my $key (keys %c) {
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$c{$key} = '';
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}
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}
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##############################
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# Ask for Parameters #
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##############################
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$| = 1;
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print "$c{r}DateName$c{o} version $c{g}$version$c{o}\n\n";
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unless ($o->{nobackup}) {
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print "Initializing backup directory... ";
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if (!-d $o->{backup}) {
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system("mkdir", "-p", $o->{backup});
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if (!-d $o->{backup}) {
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die "Can't create backup directory: $!";
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}
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}
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print "Done!\n\n";
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}
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if (!defined $o->{format}) {
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print "$c{c}1: Enter the format for the file names to follow. This should\n"
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. " contain the sequences `yyyy`, `mm`, `dd`, and at least one\n"
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. " `n`. For example if the format is `yyyy-mm-dd_nnn`, the\n"
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. " and the date is 2009-02-23, the first file will be named\n"
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. " 2009-02-23_001.jpg, the second 2009-02-23_002.jpg, and\n"
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. " so-on. The default is yyyy-mm-dd_nnn. You can simply hit\n"
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. " return here if you want to keep the default.$c{o}\n\n";
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while (1) {
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my $format = &prompt("Enter the date format, or blank for "
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. "<yyyy-mm-dd_nnn>", "yyyy-mm-dd_nnn");
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# Validate the format.
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if ($format !~ /yyyy/ || $format !~ /mm/ || $format !~ /dd/
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|| $format !~ /n+/) {
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print "\n$c{r}You've entered an invalid date format. "
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. "Try again.$c{o}\n\n";
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}
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else {
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# Good.
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$o->{format} = $format;
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last;
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}
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}
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}
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if (!defined $o->{date}) {
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print "\n$c{c}2: Enter the date that you want these files to be renamed\n"
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. " after. Enter the date in the format of yyyy-mm-dd.\n"
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. " Today's date is $c{g}$today$c{c}.$c{o}\n\n";
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while (1) {
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my $date = &prompt("Enter the date to rename the files after, "
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. "or <$today>", $today);
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# Validate the date.
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if ($date !~ /^(\d\d\d\d)\-(\d\d)\-(\d\d)$/) {
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print "\n$c{r}You've entered an invalid date. The date\n"
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. "must be in yyyy-mm-dd format.$c{o}\n\n";
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}
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else {
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# Good.
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$o->{date} = $date;
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last;
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}
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}
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}
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if (1) {
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print "\n$c{c}3: Your files will be renamed beginning with the number "
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. $c{g} . $o->{start} . "$c{c}.$c{o}\n\n";
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my $answer = &prompt("Okay to begin at the number $o->{start}? "
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. " [y/n] <y>",
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"y",
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qw(y yes n no));
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if ($answer =~ /^n/i) {
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while (1) {
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my $start = &prompt("What number do you want to "
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. "start at, or <1>", 1);
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if ($start !~ /^\d+$/) {
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print "\n$c{r}Invalid answer.$c{o}\n\n";
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}
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else {
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$o->{start} = $start;
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last;
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}
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}
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}
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}
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##############################
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# Summarize What's Going On #
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##############################
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my @files = &getFileList();
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my $numFiles = scalar(@files);
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my ($nss) = ($o->{format} =~ /(n+)/i);
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our $ns = length $nss;
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our ($year,$mon,$day) = ($o->{date} =~ /^(\d\d\d\d)\-(\d\d)\-(\d\d)$/);
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if (1) {
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my $backuptext = "Your files will be backed up to $o->{backup}.";
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if ($o->{nobackup}) {
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$backuptext = "Your files will *NOT* be backed up.";
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}
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my $first = &datename($o->{start});
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my $last = &datename($o->{start} + $numFiles);
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print "\n" . $c{c}
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. ("=" x 70) . "$c{o}\n"
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. "$c{g}Summary of Operations:$c{o}\n\n"
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. "$c{c}Your $numFiles files are going to be renamed in the format\n"
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. "'$o->{format}' using the date '$o->{date}', beginning with\n"
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. "the number $o->{start}. They will be renamed from\n"
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. "$first to $last.\n\n"
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. "$backuptext$c{o}\n\n";
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my $proceed = &prompt("Okay to proceed? [y/n] <n>", "n",
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qw(y yes n no));
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unless ($proceed =~ /^y/i) {
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print "\nAborting procedure!\n";
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exit(0);
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}
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}
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##############################
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# Main Operation #
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##############################
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my $int = $o->{start};
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foreach my $file (@files) {
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next unless -f $file;
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my ($ext) = ($file =~ /\.([A-Za-z0-9]+?)$/i);
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$ext = "jpg" unless defined $ext;
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print "$c{c}Looking at file $file$c{o}\n";
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unless ($o->{nobackup}) {
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my $backup = $file;
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my $bi = 1;
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while (-f "$o->{backup}/$backup") {
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$backup = "[$bi] $file";
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$bi++;
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}
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print " Backing it up as $o->{backup}/$backup... ";
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copy ($file, "$o->{backup}/$backup");
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if (-f "$o->{backup}/$backup") {
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print "Done!\n";
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}
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else {
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die "$c{r}Error: couldn't back it up: $!$c{o}";
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}
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}
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my $newName = &datename($int) . "." . lc($ext);
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$int++;
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print " Renaming file to $newName"
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. ($o->{force} ? " (forced)" : "")
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. "... ";
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if (-f $newName && !$o->{force}) {
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print "Warning: File already exists!$c{r}\n";
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my $continue = &prompt(
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" The file $newName already exists. Overwrite? "
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. "[y/n] <n>", "n", qw(y yes n no));
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if ($continue !~ /^y/i) {
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print " Skipping rename of $file!$c{o}\n";
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next;
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}
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print " Renaming file to $newName (forced)... $c{o}";
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}
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# Rename it.
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rename ($file, $newName);
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print "$c{g}Done!$c{o}\n";
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}
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print "\n"
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. "$c{g}Procedure completed. Backups were saved to $o->{backup}.$c{o}\n";
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exit(0);
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sub datename {
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my $i = shift;
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my $format = $o->{format};
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$format =~ s/yyyy/$year/ig;
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$format =~ s/mm/$mon/ig;
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$format =~ s/dd/$day/ig;
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my $sprint = sprintf("%0${ns}d", $i);
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$format =~ s/n+/$sprint/ig;
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return $format;
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}
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sub getFileList {
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if (@ARGV) {
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return (@ARGV);
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}
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my @return = ();
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opendir (DIR, ".");
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foreach my $f (sort(grep(/^\./, readdir(DIR)))) {
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if (-f $f) {
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push (@return, $f);
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}
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}
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closedir (DIR);
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return (@return);
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}
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sub prompt {
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my $question = shift;
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my $default = shift;
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my @accept = ();
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my $asking = 1;
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while ($asking) {
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print "$question ";
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chomp (my $answer = <STDIN>);
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if (defined $answer && length $answer) {
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if (@accept) {
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foreach my $a (@accept) {
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if ($answer eq $a) {
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return $a;
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}
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}
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print "Invalid answer.\n";
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}
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else {
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return $answer;
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}
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}
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else {
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if (@accept) {
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print "INvalid answer.\n";
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}
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else {
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return $default;
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}
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}
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}
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}
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sub help {
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print <<EOF;
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NAME
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datename - Massively rename multiple files
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USAGE
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datename [options] <files>
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OPTIONS
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The following options can be provided at the command line, or will be
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prompted for during operation.
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--format, -f <format>
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Provide the date format. Should contain yyyy, mm, dd, and a
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sequence of at least one n. Ex: yyyy-mm-dd_nnn
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--date, -d <date>
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Provide the date. Should be in yyyy-mm-dd format, e.g.
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2009-02-23
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--start, -s <number>
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Enter the iteration number to begin renaming files at. By
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default it is 1.
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The following options will modify the default behavior of the program:
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--backup, -b <directory>
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Specify the directory you want the files backed up into.
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Default is ./datename-backup
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This folder will try to be created if it doesn't exist.
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--nobackup
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Do not back up files (I don't recommend this option).
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--force
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Force rename all files (do not prompt the user if the file
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already exists).
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EXAMPLES
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; Specify all the prompt questions on the command line and rename
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; JPG and PNG images only.
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datename -f "yyyy-mm-dd_nnn" -d "2009-02-23" -s 100 *.jpg *.png
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; Rename JPG, BMP, and GIF, will be prompted for the other options
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datename *.jpg *.bmp *.gif
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; Rename everything
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datename *
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AUTHOR
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Casey Kirsle
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http://www.kirsle.net/
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EOF
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exit(1);
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}
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