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ville rantanen
2011-11-11 13:52:41 +02:00
parent 0659037eeb
commit b59a476612
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Qalbum-thumbnailer.py Executable file
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#!/usr/bin/env python
#
# Copyright 2011 Ville Rantanen
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU Lesser 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import sys,os
import re
import shutil
import subprocess
from optparse import OptionParser
from math import ceil
# (c) ville.rantanen@helsinki.fi
webfilesearch=re.compile('.*index.html$|.*gallerystyle.css$|.*galleryscript.js$|.*descriptions.csv$',re.I)
imagesearch=re.compile('.*\.jpg$|.*\.jpeg$|.*\.gif$|.*\.png$|.*\.svg$|.*\.pdf$',re.I)
vectorsearch=re.compile('.*\.svg$|.*\.pdf$',re.I)
excludepaths=re.compile('_med|_tn|\..*')
doublequotes=re.compile('"')
singlequotes=re.compile("'")
stripquotes=re.compile('^"|"$')
def getimagelist(path):
''' Returns a list of images matching the regex '''
list=os.listdir(path)
imgs=[]
for f in list:
if (imagesearch.match(os.path.join(path,f))) and (os.path.isfile(os.path.join(path,f))):
imgs.append(f)
return imgs
def getnonimagelist(path):
''' Returns a list of files not matching the image match regex '''
list=os.listdir(path)
files=[]
for f in list:
if (not webfilesearch.match(os.path.join(path,f))) and (not imagesearch.match(os.path.join(path,f))) and (os.path.isfile(os.path.join(path,f))):
files.append(f)
files.sort()
return files
def getpathlist(path):
''' Returns a list of subfolders not matching the exclusion regex '''
list=os.listdir(path)
paths=[]
for d in list:
if (not excludepaths.match(d)) and (os.path.isdir(os.path.join(path,d))):
paths.append(d)
return paths
def createthumbs(path,list):
''' Runs imagemagick Convert to create medium sized and thumbnail images '''
if len(list)==0:
return
if not os.path.exists(os.path.join(path,'_tn')):
os.mkdir(os.path.join(path,'_tn'))
if not os.path.exists(os.path.join(path,'_med')):
os.mkdir(os.path.join(path,'_med'))
n=1
nsum=len(list)
r=str(options.width)
res=r+'x'+r+'>'
for i in list:
if (vectorsearch.match(i)):
if (options.force) or (not os.path.exists(os.path.join(path,'_med','med_'+i+'.jpg'))):
print('Medium.. '+i+' '+str(n)+'/'+str(nsum))
convargs=['convert','-density','300x300',os.path.join(path,i)+'[0]','-background','white','-flatten','-resize',res,'-quality','97',os.path.join(path,'_med','med_'+i+'.jpg')]
convp=subprocess.call(convargs)
if (options.force) or (not os.path.exists(os.path.join(path,'_tn','tn_'+i+'.jpg'))):
convargs=['convert','-density','300x300',os.path.join(path,'_med','med_'+i+'.jpg'),'-background','white','-flatten','-thumbnail','90x90^','-gravity','Center','-crop','90x90+0+0','+repage','-quality','75',os.path.join(path,'_tn','tn_'+i+'.jpg')]
convp=subprocess.call(convargs)
else:
if (options.force) or (not os.path.exists(os.path.join(path,'_med','med_'+i+'.jpg'))):
print('Medium.. '+i+' '+str(n)+'/'+str(nsum))
convargs=['convert','-define','jpeg:size='+r+'x'+r,os.path.join(path,i)+'[0]','-background','white','-flatten','-resize',res,'-quality','85',os.path.join(path,'_med','med_'+i+'.jpg')]
convp=subprocess.call(convargs)
if (options.force) or (not os.path.exists(os.path.join(path,'_tn','tn_'+i+'.jpg'))):
convargs=['convert','-define','jpeg:size=300x300',os.path.join(path,'_med','med_'+i+'.jpg'),'-background','white','-flatten','-thumbnail','90x90^','-gravity','Center','-crop','90x90+0+0','+repage','-quality','75',os.path.join(path,'_tn','tn_'+i+'.jpg')]
convp=subprocess.call(convargs)
n+=1
return
def cleanthumbs(path):
''' clears _med and _tn for unused thumbs '''
print('clearing unused thumbs...')
if os.path.exists(os.path.join(path,'_tn')):
clearfolder(path,os.path.join(path,'_tn'),re.compile("(^tn_)(.*)(.jpg)"))
if os.path.exists(os.path.join(path,'_med')):
clearfolder(path,os.path.join(path,'_med'),re.compile("(^med_)(.*)(.jpg)"))
return
def clearfolder(path,tnpath,regex):
''' clears given folder '''
list=getimagelist(tnpath)
for i in list:
f=regex.match(i)
try:
if not os.path.exists(os.path.join(path,f.group(2))):
print('removing '+i)
os.remove(os.path.join(tnpath,i))
except:
continue
return
def traverse(path):
''' The recursive main function to create the thumbs and seek sub folders '''
print(path)
pathlist=getpathlist(path)
imagelist=getimagelist(path)
print(str(len(pathlist))+' paths')
print(str(len(imagelist))+' images')
if options.clean:
cleanthumbs(path)
createthumbs(path,imagelist)
if options.recursive:
for p in pathlist:
traverse(os.path.join(path,p))
return
def execute():
''' Main execution '''
usage='''Usage: %prog [options] folder
folder is the root folder of the image album.'''
parser=OptionParser(usage=usage)
parser.add_option("-f",action="store_true",dest="force",default=False,
help="Force regeneration of thumbnails")
parser.add_option("-c",action="store_true",dest="clean",default=False,
help="Clean unused thumbnails")
parser.add_option("-r",action="store_true",dest="recursive",default=False,
help="Recurse in to subfolders")
parser.add_option("-w",type="int",dest="width",default=850,
help="Medium image size")
global options
(options,args)=parser.parse_args()
if len(args) != 1:
parser.error("incorrect number of arguments")
startpath=os.path.abspath(args[0])
traverse(startpath)
return
execute()
sys.exit(0)