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### jack_utils: utility functions for
### jack - extract audio from a CD and encode it using 3rd party software
### Copyright (C) 1999-2002 Arne Zellentin <zarne@users.sf.net>
### This program is free software; you can redistribute it and/or modify
### it under the terms of the GNU General Public License as published by
### the Free Software Foundation; either version 2 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 General Public License for more details.
### You should have received a copy of the GNU General Public License
### along with this program; if not, write to the Free Software
### Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import sys
import signal
import types
import os
import stat
import string
import jack_functions
import jack_globals
import jack_misc
import jack_term
from jack_globals import *
def all_paths(p):
"return all path leading to and including p"
if type(p) == types.StringType:
p = split_dirname(p)
all = []
x = ""
for i in p:
x = os.path.join(x, i)
all.append(x)
return all
def check_path(p1, p2):
"check if p1 and p2 are equal or sub/supersets"
if type(p1) == types.StringType:
p1 = split_dirname(p1)
if type(p2) == types.StringType:
p2 = split_dirname(p2)
for i in p1, p2:
if type(i) != types.ListType:
error("invalid type for check_path" + `i`)
if len(p1) > len(p2): # make sure p1 is shorter or as long as p2
p1, p2 = p2, p1
ok = 1
for i in range(1, len(p1) + 1):
if p1[-i] != p2[-i]:
ok = 0
return ok
def rename_path(old, new):
"this is complicated."
cwd = os.getcwd()
print cwd
cwds = split_dirname(cwd)
if type(old) == types.StringType:
old = split_dirname(old)
if type(new) == types.StringType:
new = split_dirname(new)
for i in old, new, cwds:
if type(i) != types.ListType:
error("invalid type for rename_path: " + `i`)
# weed out empty dirs (which are technically illegal on freedb but exist)
tmp = []
for i in new:
if i:
tmp.append(i)
new = tmp
del tmp
for i in old:
os.chdir(os.pardir)
for i in new[:-1]:
if not os.path.exists(i):
try:
os.mkdir(i)
except OSError:
error('Cannot create directory "%s" (Filename is too long or has unusable characters)' % i)
if os.path.isdir(i):
os.chdir(i)
else:
error("could not create or change to " + i + " from " + os.getcwd())
last_of_new = new[-1]
if os.path.exists(last_of_new):
error("destination directory already exists: " + last_of_new)
try:
os.rename(cwd, last_of_new)
except OSError:
error('Cannot rename "%s" to "%s" (Filename is too long or has unusable characters)' % (cwd, last_of_new))
os.chdir(last_of_new)
# now remove empty "orphan" dirs
old_dirs = all_paths(cwds)
old_dirs.reverse()
for i in old_dirs[:len(old)][1:]:
try:
os.rmdir(i)
except OSError:
pass
def cmp_toc(x, y):
"compare two track's length"
x, y = x[LEN], y[LEN]
if x > y: return 1
elif x == y: return 0
elif x < y: return -1
NUM, LEN, START, COPY, PRE, CH, RIP, RATE, NAME = range(9)
def cmp_toc_cd(x, y, what=(NUM, LEN, START)):
"compare the relevant parts of two TOCs"
if len(x) == len(y):
for i in range(len(x)):
for j in what:
if x[i][j] != y[i][j]:
return 0
else:
return 0
return 1
def filesize(name):
return os.stat(name)[stat.ST_SIZE]
def yes(what):
if what.has_key('save') and what['save'] == 0:
return ""
if what['type'] == 'toggle':
if what['val']:
s = "yes"
else:
s = "no"
elif what['type'] == types.StringType:
s = "'%s'" % what['val']
else:
s = str(what['val'])
s = " [%s]" % s
if what['history'][-1][0] == "global_rc":
s = s + "*"
if what.has_key('doc'):
s = s + " +"
return s
def safe_float(number, message):
try:
return float(number)
except ValueError:
print message
sys.exit(1)
def unusable_charmap(x):
for i in range(len(cf['_unusable_chars'])):
x = string.replace(x, cf['_unusable_chars'][i], cf['_replacement_chars'][i])
return x
def mkdirname(names, template):
"generate mkdir-able directory name(s)"
dirs = template.split(os.path.sep)
dirs2 = []
for i in dirs:
replace_list = (("%a", names[0][0].encode(cf['_charset'], "replace")),
("%l", names[0][1].encode(cf['_charset'], "replace")),
("%y", `cf['_id3_year']`), ("%g", cf['_id3_genre_txt']))
x = jack_misc.multi_replace(i, replace_list, unusable_charmap)
exec("x = x" + cf['_char_filter'])
dirs2.append(x)
if cf['_append_year'] and len(`cf['_id3_year']`) == 4: # Y10K bug!
dirs2[-1] = dirs2[-1] + jack_misc.multi_replace(cf['_append_year'], replace_list)
name = ""
for i in dirs2:
name = os.path.join(name, i)
return dirs2, name
def split_dirname(name):
"split path in components"
names = []
while 1:
base, sub = os.path.split(name)
if not base or base == os.sep:
names.append(os.path.join(base, sub))
break
names.append(sub)
name = base
names.reverse()
return names
def split_path(path, num):
"split given path in num parts"
new_path = []
for i in range(1, num):
base, end = os.path.split(path)
path = base
new_path.append(end)
new_path.append(base)
new_path.reverse()
def ex_edit(file):
editor = "/usr/bin/sensible-editor"
if os.environ.has_key("EDITOR"):
editor = os.environ['EDITOR']
print "invoking your editor,", editor, "..."
os.system(string.split(editor)[0] + " " + file)
def has_track(l, num):
for i in range(len(l)):
if l[i][NUM] == num:
return i
return -1.5
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