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Re: Change Image File Timestamp to Match EXIF Data

by merlyn (Sage)
on Aug 10, 2009 at 23:40 UTC ( #787440=note: print w/replies, xml ) Need Help??

in reply to Change Image File Timestamp to Match EXIF Data

Neat. Mine looked like this:
#!/usr/bin/env perl use strict; $|++; use Image::ExifTool qw(ImageInfo); use Time::Local; for my $file (@ARGV) { my $ii = ImageInfo($file, qw(DateTimeOriginal DateTime)) or warn("Skipping $file\n"), next; my ($created) = grep /\S/, @$ii{qw(DateTimeOriginal DateTime)}; next unless $created; warn "using $created for $file\n"; if ($created =~ s/([-+ ])(\d\d):(\d\d)$//) { my ($sign, $hour, $minute) = ($1, $2, $3); # warn "ignoring offset of $sign $hour:$minute\n"; } my @digits = $created =~ /(\d+)/g or next; if ($digits[0] < 1900) { warn "bad year $digits[0] for $file"; next; } $digits[0] -= 1900; $digits[1] -= 1; my $gmtime = timegm(reverse @digits); if ($gmtime > time or $gmtime < time - 86400*90) { warn "preposterous gmtime for $file: ", scalar gmtime $gmtime; # next; } utime($gmtime, $gmtime, $file) or warn "Cannot utime on $file: $!"; }

-- Randal L. Schwartz, Perl hacker

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119.

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