#!/usr/bin/python

# Copyright (c) 2010, Benjamin Drung <bdrung@ubuntu.com>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

import magic
import optparse
import os
import sys

default_whitelisted_mimetypes = [
	"application/vnd.font-fontforge-sfd", # font source: fontforge
	"application/x-elc",
	"application/x-empty",
	"application/x-font-otf",             # font object and source
	"application/x-font-ttf",             # font object and source
	"application/x-font-woff",            # font object and source
	"application/x-symlink",
	"application/xml",
	"audio/x-wav",
	"font/otf",                           # font object and source
	"font/ttf",                           # font object and source
	"image/gif",
	"image/jpeg",
	"image/png",
	"image/svg+xml",
	"image/x-icns",
	"image/x-ico",
	"image/x-ms-bmp",
	"image/x-portable-pixmap",
	"message/rfc822",
	"text/html",
	"text/plain",
	"text/rtf",
	"text/troff",
	"text/x-asm",
	"text/x-c",
	"text/x-c++",
	"text/x-diff",
	"text/x-fortran",
	"text/x-java",
	"text/x-lisp",
	"text/x-m4",
	"text/x-makefile",
	"text/x-msdos-batch",
	"text/x-pascal",
	"text/x-perl",
	"text/x-php",
	"text/x-po",
	"text/x-shellscript",
	"text/x-tex",
	"text/x-texinfo",
]

default_whitelisted_extensions = [
	".fea",   # font source format: afdko (Adobe font development kit for OpenType)
	".fog",   # font source format: Fontographer
	".g2n",   # font source format: fontforge
	".gdh",   # font source format: Graphite (headers)
	".gdl",   # font source format: Graphite
	".glyph", # font source format: cross-toolkit UFO
	".plate", # font source format: Spiro
	".rsa",
	".sfd",   # font source format: fontforge
	".sfdir", # font source format: fontforge
	".ttx",   # font source format: fonttools
	".ufo",   # font source format: cross-toolkit UFO
	".vfb"    # font source format: FontLab
	".vtp",   # font source format: OpenType (VOLT)
	".xgf",   # font source format: Xgridfit
]

def main(whitelisted_mimetypes, whitelisted_extensions, directory, verbose=False):
	ms = magic.open(magic.MAGIC_MIME_TYPE)
	ms.load()

	for root, dirs, files in os.walk(directory):
		for f in files:
			mimetype = ms.file(os.path.join(root, f))
			if mimetype not in whitelisted_mimetypes:
				if not filter(lambda x: f.lower().endswith(x), whitelisted_extensions):
					if verbose:
						print "%s (%s)" % (os.path.join(root, f), mimetype)
					else:
						print os.path.join(root, f)
		for d in (".bzr", "CVS", ".git", ".svn"):
			if d in dirs:
				dirs.remove(d)

if __name__ == "__main__":
	script_name = os.path.basename(sys.argv[0])
	usage = "%s [options]" % (script_name)
	epilog = "See %s(1) for more info." % (script_name)
	parser = optparse.OptionParser(usage=usage, epilog=epilog)

	parser.add_option("-v", "--verbose", help="print more information",
			dest="verbose", action="store_true", default=False)
	parser.add_option("-d", "--directory",
			help="check the files in the specified directory",
			dest="directory", default=".")
	parser.add_option("-m", "--mimetype", metavar="MIMETYPE",
			help="Add MIMETYPE to list of whitelisted mimetypes.",
			dest="whitelisted_mimetypes", action="append",
			default=default_whitelisted_mimetypes)
	parser.add_option("-e", "--extension", metavar="EXTENSION",
			help="Add EXTENSION to list of whitelisted extensions.",
			dest="whitelisted_extensions", action="append",
			default=default_whitelisted_extensions)

	(options, args) = parser.parse_args()

	if len(args) != 0:
		print >> sys.stderr, "%s: This script does not take any additional parameters." % \
				(script_name)
		sys.exit(1)

	whitelisted_extensions = map(lambda x: x.lower(), options.whitelisted_extensions)
	main(options.whitelisted_mimetypes, whitelisted_extensions,
			options.directory, options.verbose)