Script to automagically switch from font awesome 3.2.1 to 4

fa321to4.py

LIST = """
ban-circle -> ban,
bar-chart -> bar-chart-o,
beaker -> flask,
bell -> bell-o,
bell-alt -> bell,
bitbucket-sign -> bitbucket-square,
bookmark-empty -> bookmark-o,
building -> building-o ,
calendar-empty -> calendar-o,
check-empty -> square-o,
check-minus -> minus-square-o,
check-sign -> check-square,
check -> check-square-o,
chevron-sign-down -> chevron-down,
chevron-sign-left -> chevron-left,
chevron-sign-right -> chevron-right,
chevron-sign-up -> chevron-up,
circle-arrow-down -> arrow-circle-down,
circle-arrow-left -> arrow-circle-left,
circle-arrow-right -> arrow-circle-right,
circle-arrow-up -> arrow-circle-up,
circle-blank -> circle-o,
cny -> rmb,
collapse-alt -> minus-square-o,
collapse-top -> caret-square-o-up,
collapse -> caret-square-o-down,
comment-alt -> comment-o,
comments-alt -> comments-o,
copy -> files-o,
cut -> scissors,
dashboard -> tachometer,
double-angle-down -> angle-double-down,
double-angle-left -> angle-double-left,
double-angle-right -> angle-double-right,
double-angle-up -> angle-double-up,
download -> arrow-circle-o-down,
download-alt -> download,
edit-sign -> pencil-square,
edit -> pencil-square-o,
ellipsis-horizontal -> ellipsis-h ,
ellipsis-vertical -> ellipsis-v ,
envelope-alt -> envelope-o,
exclamation-sign -> exclamation-circle,
expand-alt -> plus-square-o ,
expand -> caret-square-o-right,
external-link-sign -> external-link-square,
eye-close -> eye-slash,
eye-open -> eye,
facebook-sign -> facebook-square,
facetime-video -> video-camera,
file-alt -> file-o,
file-text-alt -> file-text-o,
flag-alt -> flag-o,
folder-close-alt -> folder-o,
folder-close -> folder,
folder-open-alt -> folder-open-o,
food -> cutlery,
frown -> frown-o,
fullscreen -> arrows-alt ,
github-sign -> github-square,
google-plus-sign -> google-plus-square,
group -> users ,
h-sign -> h-square,
hand-down -> hand-o-down,
hand-left -> hand-o-left,
hand-right -> hand-o-right,
hand-up -> hand-o-up,
hdd -> hdd-o (4.0.1),
heart-empty -> heart-o,
hospital -> hospital-o ,
indent-left -> outdent,
indent-right -> indent,
info-sign -> info-circle,
keyboard -> keyboard-o,
legal -> gavel,
lemon -> lemon-o,
lightbulb -> lightbulb-o,
linkedin-sign -> linkedin-square,
meh -> meh-o,
microphone-off -> microphone-slash,
minus-sign-alt -> minus-square,
minus-sign -> minus-circle,
mobile-phone -> mobile,
moon -> moon-o,
move -> arrows ,
off -> power-off,
ok-circle -> check-circle-o,
ok-sign -> check-circle,
ok -> check,
paper-clip -> paperclip,
paste -> clipboard,
phone-sign -> phone-square,
picture -> picture-o,
pinterest-sign -> pinterest-square,
play-circle -> play-circle-o,
play-sign -> play-circle,
plus-sign-alt -> plus-square,
plus-sign -> plus-circle,
pushpin -> thumb-tack,
question-sign -> question-circle,
remove-circle -> times-circle-o,
remove-sign -> times-circle,
remove -> times,
reorder -> bars ,
resize-full -> expand ,
resize-horizontal -> arrows-h ,
resize-small -> compress ,
resize-vertical -> arrows-v,
rss-sign -> rss-square,
save -> floppy-o,
screenshot -> crosshairs,
share-alt -> share,
share-sign -> share-square,
share -> share-square-o,
sign-blank -> square,
signin -> sign-in,
signout -> sign-out,
smile -> smile-o,
sort-by-alphabet-alt -> sort-alpha-desc,
sort-by-alphabet -> sort-alpha-asc,
sort-by-attributes-alt -> sort-amount-desc,
sort-by-attributes -> sort-amount-asc,
sort-by-order-alt -> sort-numeric-desc,
sort-by-order -> sort-numeric-asc,
sort-down -> sort-desc,
sort-up -> sort-asc,
stackexchange -> stack-overflow,
star-empty -> star-o,
star-half-empty -> star-half-o,
sun -> sun-o,
thumbs-down-alt -> thumbs-o-down,
thumbs-up-alt -> thumbs-o-up,
time -> clock-o,
trash -> trash-o,
tumblr-sign -> tumblr-square,
twitter-sign -> twitter-square,
unlink -> chain-broken,
upload -> arrow-circle-o-up,
upload-alt -> upload,
warning-sign -> exclamation-triangle,
xing-sign -> xing-square,
youtube-sign -> youtube-square,
zoom-in -> search-plus,
zoom-out -> search-minus
"""

trans = [x.strip().replace(',','').strip() for x in LIST.split('\n')]
trans = [[y.strip() for y in x.split('->')] for x in trans if x]
from pprint import pprint as pp
#pp(trans)

import os, glob, fnmatch, fileinput

# traverse root directory, and list directories as dirs and files as files
for root, directories, filenames in os.walk('.'):
    for filename in filenames:
        path = os.path.join(root,filename)
        if os.path.isfile(path) and '.html' in path:
            try:
                with fileinput.FileInput(path, inplace=True) as datfile:
                    for line in datfile:
                        new_line = line
                        for t0,t1 in trans:
                            new_line = new_line.replace('ficon-'+t0, 'ficon-'+t1)
                        print(new_line, end='')
            except UnicodeDecodeError:
                print('failed to decode',path)