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#!/usr/bin/python
__doc__ = """Output information about a fast-import stream.
This command reads a fast-import stream and outputs
statistics and interesting properties about what it finds.
When run in verbose mode, the information is output as a
configuration file that can be passed to fast-import to
assist it in intelligently caching objects.
To specify standard input as the input stream, use a source name
of '-'. If the source name ends in '.gz', it is assumed to be
compressed in gzip format.
:Examples:
Display statistics about the import stream produced by front-end::
front-end | fast-import-info -
Create a hints file for running fast-import on a large repository::
front-end | fast-import-info -v - > front-end.cfg
"""
import optparse
import sys
parser = optparse.OptionParser('fast-import-info [options] SOURCE')
parser.add_option('-v', '--verbose', dest="verbose",
help="Be verbose.")
(options, args) = parser.parse_args()
if len(args) == 0:
source_path = "-"
elif len(args) == 1:
source_path = args[0]
else:
parser.print_usage()
from fastimport.processors import info_processor
from fastimport.errors import ParsingError
from fastimport.helpers import get_source_stream
from fastimport import parser
stream = get_source_stream(source_path)
proc = info_processor.InfoProcessor(verbose=options.verbose)
p = parser.ImportParser(stream, verbose=options.verbose)
try:
sys.exit(proc.process(p.iter_commands))
except ParsingError as e:
sys.stderr.write("%d: Parse error: %s\n" % (e.lineno, e))
sys.exit(1)
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