#!/usr/bin/env python
from os import *
import sys
try:
from PIL import Image
except ImportError:
print "Python image libraries not found!"
sys.exit()
# Default options
size=1024,9000
extlist=['.jpg', '.jpeg']
directory=getcwd()
getchild=False
def resize(folder, level=0):
"Does the actual image scaling action"
tick = unichr(0x2714).encode("utf-8")
dot= unichr(0x2726).encode("utf-8")
unitSegment=5 #The basic unit in the loading bar
linesPerP=1.0/unitSegment
if path.isdir(folder):
imageQue=[item for item in listdir(folder) if path.splitext(item.lower())[1] in extlist]
total=len(imageQue)
folderData=dot+' '+ folder.split(sep)[-1]
done=0
maxImageName=0 #resets to previous image name's length everytime(to clear the exact length)
for image in imageQue:
maxImageName= max(maxImageName, len(image))
percentage= int(float(done)/total*100)
#the dynamic loading bar data
sys.stdout.write( "\r{indent}{fold} [{imgno}] [{bar}] {per}% {img}".format(
indent=' '+' '*level,
fold=folderData,
imgno=str(total)+' images',
bar=('='*int(percentage*linesPerP)).ljust(int(100*linesPerP)),
per=percentage,
img= image.ljust(maxImageName) ))
sys.stdout.flush()
#the resizing process
maxImageName=len(image)
image=path.join(folder,image)
im=Image.open(image)
im.thumbnail(size, Image.ANTIALIAS)
im.save(image, im.format)
done+=1
#the completed loading bar data
sys.stdout.write( "\r{indent}{fold} [{imgno}] [{alldone}] {clear}\n".format(
indent=' '+' '*level,
fold=folderData,
alldone=tick,
imgno=str(total)+' images',
clear=' '*(6+maxImageName+int(100*linesPerP)) ))
#attacking sub directories!
if getchild:
for subfolder in listdir(folder):
resize(folder+sep+subfolder,level+5)
def invalidArgs():
print "Invalid arguments!"
sys.exit()
def parseArgs():
"Analyse the commandline parameters; Calls resize function if things are okay "
arglist=['-d','-o','-e','-c'] # -c is alone (no additional data); others work in pairs
global size
global extlist
global directory
global getchild
if '--help' in sys.argv or '--start' not in sys.argv: # --help is the show stopper :)
print """
Usage: imageresize --start [options]
Scale images to given size
* Default directory is current directory (includes subdirectories)
* Default resize option is '1024'
(scale width of image if it exceeds 1024px; retain aspect ratio)
* Default extensions are jpg, jpeg (not case-sensitive)
* Overwrites original image
Parameters:
--start begins the process
-d <path> <path> is the path to the required directory
-o '<option>' <option> can be of the following formats
'100' : scale width of image to 100px
'x60' : scale height of image to 60px
'100x60' : scale image within given bounds
(aspect ratio preserved)
-e <ext1>,<ext2>... <extn> is any valid extension (.png, .gif)
-c Scale images in sub-folders
--help Displays this help
"""
else:
sys.argv.remove('--start')
l=len(sys.argv)
i=1
while i<l:
arg=sys.argv[i]
if arg in arglist:
if arg=='-c': # -c is alone
getchild=True
i+=1
continue
elif i+1<l:
data=sys.argv[i+1]
if data in arglist or data==None:
invalidArgs() #only pairs; no odd args after -c!
elif arg=='-d':
if not path.exists(data):
print "Directory does not exist"
invalidArgs()
directory=data
elif arg=='-o':
validOptionChars=[str(letter) for letter in range(0,10)]
validOptionChars.extend(['x'])
for letter in data: #validating option string
if letter not in validOptionChars:
invalidArgs()
if 'x' in data.replace('x',''):
invalidArgs()
dim=data.split('x')
if data.startswith('x'): #scale height
height=int(dim[0])
size=height*9,height
elif 'x' not in data: #scale width
width=int(dim[0])
size=width,width*9
else: #scale to fit bounding box
size=int(dim[0]),int(dim[1])
else:
extlist.extend(data.lower().split(","))
i+=2 #Done with the pair, move on
else:
invalidArgs() #Expected data not found
else: #if a stranger is present in positions where args are expected
invalidArgs()
resize(directory) #Okies!
parseArgs() #So lets get started
Diff to Previous Revision
--- revision 1 2010-04-12 08:22:42
+++ revision 2 2010-04-13 07:06:09
@@ -12,7 +12,7 @@
size=1024,9000
extlist=['.jpg', '.jpeg']
directory=getcwd()
-getchild=True
+getchild=False
def resize(folder, level=0):
"Does the actual image scaling action"
@@ -71,14 +71,16 @@
def parseArgs():
"Analyse the commandline parameters; Calls resize function if things are okay "
- arglist=['-d','-o','-e','-p'] # -p is alone (no additional data); others work in pairs
+ arglist=['-d','-o','-e','-c'] # -c is alone (no additional data); others work in pairs
global size
global extlist
global directory
global getchild
- if '--help' in sys.argv: # --help is the show stopper :)
- print """
+ if '--help' in sys.argv or '--start' not in sys.argv: # --help is the show stopper :)
+ print """
+Usage: imageresize --start [options]
+
Scale images to given size
* Default directory is current directory (includes subdirectories)
* Default resize option is '1024'
@@ -87,6 +89,7 @@
* Overwrites original image
Parameters:
+ --start begins the process
-d <path> <path> is the path to the required directory
-o '<option>' <option> can be of the following formats
'100' : scale width of image to 100px
@@ -94,23 +97,24 @@
'100x60' : scale image within given bounds
(aspect ratio preserved)
-e <ext1>,<ext2>... <extn> is any valid extension (.png, .gif)
- -p Scale images in parent directory only
+ -c Scale images in sub-folders
--help Displays this help
"""
else:
+ sys.argv.remove('--start')
l=len(sys.argv)
i=1
while i<l:
arg=sys.argv[i]
if arg in arglist:
- if arg=='-p': # -p is alone
- getchild=False
+ if arg=='-c': # -c is alone
+ getchild=True
i+=1
continue
elif i+1<l:
data=sys.argv[i+1]
if data in arglist or data==None:
- invalidArgs() #only pairs; no odd args after -p!
+ invalidArgs() #only pairs; no odd args after -c!
elif arg=='-d':
if not path.exists(data):
print "Directory does not exist"
