import re
-from regexes import re_verwithext
from dak_exceptions import UnknownFormatError
srcformats = []
-def parse_format(txt):
+def get_format_from_string(txt):
"""
- Parse a .changes Format string into a tuple representation for easy
- comparison.
-
- >>> parse_format('1.0')
- (1, 0)
- >>> parse_format('8.4 (hardy)')
- (8, 4, 'hardy')
-
- If the format doesn't match these forms, raises UnknownFormatError.
+ Returns the SourceFormat class that corresponds to the specified .changes
+ Format value. If the string does not match any class, UnknownFormatError
+ is raised.
"""
- format = re_verwithext.search(txt)
-
- if format is None:
- raise UnknownFormatError, txt
-
- format = format.groups()
+ for format in srcformats:
+ if format.re_format.match(txt):
+ return format
- if format[1] is None:
- format = int(float(format[0])), 0, format[2]
- else:
- format = int(format[0]), int(format[1]), format[2]
-
- if format[2] is None:
- format = format[:2]
-
- return format
+ raise UnknownFormatError, "Unknown format %r" % txt
class SourceFormat(type):
def __new__(cls, name, bases, attrs):
if has[key]:
yield "contains source files not allowed in format %s" % cls.name
- @classmethod
- def validate_format(cls, format, is_a_dsc=False, field='files'):
- if is_a_dsc:
- if format != (1,0) and \
- format != (3,0,"quilt") and format != (3,0,"native"):
- raise UnknownFormatError, repr(format)
- else:
- if (format < (1,5) or format > (1,8)):
- raise UnknownFormatError, repr(format)
- if field != "files" and format < (1,8):
- raise UnknownFormatError, repr(format)
-
class FormatOne(SourceFormat):
__metaclass__ = SourceFormat