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#!/usr/bin/env ruby
require 'date'
$possible_devices = { "SIGMA DP2 Merrill" => "dp2m", "FP2" => "fp2", "Canon EOS 1000D" => "1000d", "iPad Air" => "ipadair", "iPhone 5" => "iphone5", "iPhone SE" => "iphonese", "IQ180" => "iq180", "iPhone XR" => "iphonexr" }
$possible_devices.default = "unknown-device"
file_ext = ARGV[0]
if !file_ext
file_ext = "jpg"
end
if ARGV[1]
$possible_devices.default = ARGV[1]
end
ids = []
while line = STDIN.gets # list of files
a = line.split('.')
a.pop
ids << a.join('.')
end
used_prefixes = {} # prefix -> 0..N
def parse_timestamp s
d = s.split(':', 2)[1]
d.strip!
d.gsub!(/^(\d\d\d\d):(\d\d):(\d\d)/, "\\1-\\2-\\3")
return DateTime.parse d
end
def determine_datetime dts, subsec=nil
dt = dts.min # get the actual original date
if subsec != nil and subsec.to_i > 0 # add sub-seconds if available
if dt.strftime("%L") == "000"
s = format_datetime(dt)+".#{subsec}"
dt = DateTime.parse s
end
end
return dt
end
def format_datetime dt
if dt.strftime("%L") == "000"
return dt.strftime("%Y-%m-%dT%H:%M:%S")
else
return dt.strftime("%Y-%m-%dT%H:%M:%S.%L")
end
end
def parse_device s
d = s.split(':', 2)[1]
d.strip!
return $possible_devices[d]
end
def determine_device a
a.each { |s|
if s != $possible_devices.default
return s
end
}
return $possible_devices.default
end
ids.each do |i|
exif = `exiftool "#{i}.#{file_ext}" 2>/dev/null`
a = exif.split "\n"
timestamps = []
subsec_time = nil
devices = []
a.each { |j|
if j.start_with? "Camera Model Name" \
or j.start_with? "Model"
devices << parse_device(j)
elsif j.start_with? "Date/Time Original" \
or j.start_with? "Creation Date" \
or j.start_with? "Create Date" \
or j.start_with? "Media Create Date" \
or j.start_with? "Track Create Date" \
or j.start_with? "File Modification Date/Time"
timestamps << parse_timestamp(j)
elsif j.start_with? "Sub Sec Time Original"
subsec_time = j.split(':', 2)[1].strip
end
}
skip = false
new_prefix = ""
add = 0
begin
t = format_datetime(determine_datetime(timestamps, subsec_time))
d = determine_device devices
new_prefix = "#{t}-#{d}"
add = 1
rescue
puts "Cannot determine metadata for #{i}, skipping!"
skip = true
end
next if skip
while used_prefixes.has_key? new_prefix
new_prefix = "#{t}-#{add}-#{d}"
add += 1
end
used_prefixes[new_prefix] = true
Dir.glob("#{i}*").each { |f|
ext = f.sub("#{i}","")
if File.exists? "#{new_prefix}#{ext}"
puts "File exists: #{new_prefix}#{ext} (#{i})!"
exit
else
`mv \"#{i}#{ext}\" #{new_prefix}#{ext}`
end
}
end
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