1 files changed, 105 insertions, 0 deletions
diff --git a/io_blend_utils/utils/system.py b/io_blend_utils/utils/system.py
new file mode 100644
index 00000000..970a6464
--- /dev/null
+++ b/io_blend_utils/utils/system.py
@@ -0,0 +1,105 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# 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.
+#
+# ***** END GPL LICENCE BLOCK *****
+
+def colorize_dummy(msg, color=None):
+    return msg
+
+_USE_COLOR = True
+if _USE_COLOR:
+    color_codes = {
+        'black':        '\033[0;30m',
+        'bright_gray':  '\033[0;37m',
+        'blue':         '\033[0;34m',
+        'white':        '\033[1;37m',
+        'green':        '\033[0;32m',
+        'bright_blue':  '\033[1;34m',
+        'cyan':         '\033[0;36m',
+        'bright_green': '\033[1;32m',
+        'red':          '\033[0;31m',
+        'bright_cyan':  '\033[1;36m',
+        'purple':       '\033[0;35m',
+        'bright_red':   '\033[1;31m',
+        'yellow':       '\033[0;33m',
+        'bright_purple':'\033[1;35m',
+        'dark_gray':    '\033[1;30m',
+        'bright_yellow':'\033[1;33m',
+        'normal':       '\033[0m',
+    }
+
+    def colorize(msg, color=None):
+        return (color_codes[color] + msg + color_codes['normal'])
+else:
+    colorize = colorize_dummy
+
+
+def uuid_from_file(fn, block_size=1 << 20):
+    """
+    Returns an arbitrary sized unique ASCII string based on the file contents.
+    (exact hashing method may change).
+    """
+    with open(fn, 'rb') as f:
+        # first get the size
+        import os
+        f.seek(0, os.SEEK_END)
+        size = f.tell()
+        f.seek(0, os.SEEK_SET)
+        del os
+        # done!
+
+        import hashlib
+        sha1 = hashlib.new('sha512')
+        while True:
+            data = f.read(block_size)
+            if not data:
+                break
+            sha1.update(data)
+        # skip the '0x'
+        return hex(size)[2:] + sha1.hexdigest()
+
+
+def is_compressed_filetype(filepath):
+    """
+    Use to check if we should compress files in a zip.
+    """
+    # for now, only include files which Blender is likely to reference
+    import os
+    assert(isinstance(filepath, bytes))
+    return os.path.splitext(filepath)[1].lower() in {
+        # images
+        b'.exr',
+        b'.jpg', b'.jpeg',
+        b'.png',
+
+        # audio
+        b'.aif', b'.aiff',
+        b'.mp3',
+        b'.ogg', b'.ogv',
+        b'.wav',
+
+        # video
+        b'.avi',
+        b'.mkv',
+        b'.mov',
+        b'.mpg', b'.mpeg',
+
+        # archives
+        # '.bz2', '.tbz',
+        # '.gz', '.tgz',
+        # '.zip',
+        }
+