#!/usr/bin/python2.7

import sys

from bup import git, options
from bup.gc import bup_gc
from bup.helpers import die_if_errors, handle_ctrl_c, log


optspec = """
bup gc [options...]
--
v,verbose   increase log output (can be used more than once)
threshold=  only rewrite a packfile if it's over this percent garbage [10]
#,compress= set compression level to # (0-9, 9 is highest) [1]
unsafe      use the command even though it may be DANGEROUS
"""

# FIXME: server mode?
# FIXME: make sure client handles server-side changes reasonably

handle_ctrl_c()

o = options.Options(optspec)
(opt, flags, extra) = o.parse(sys.argv[1:])

if not opt.unsafe:
    o.fatal('refusing to run dangerous, experimental command without --unsafe')

if extra:
    o.fatal('no positional parameters expected')

if opt.threshold:
    try:
        opt.threshold = int(opt.threshold)
    except ValueError:
        o.fatal('threshold must be an integer percentage value')
    if opt.threshold < 0 or opt.threshold > 100:
        o.fatal('threshold must be an integer percentage value')

git.check_repo_or_die()

bup_gc(threshold=opt.threshold,
       compression=opt.compress,
       verbosity=opt.verbose)

die_if_errors()
