apenwarr-redo/libdo.py

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import sys, os
import vars
def relpath(t, base):
t = os.path.abspath(t)
tparts = t.split('/')
bparts = base.split('/')
for tp,bp in zip(tparts,bparts):
if tp != bp:
break
tparts.pop(0)
bparts.pop(0)
while bparts:
tparts.insert(0, '..')
bparts.pop(0)
return '/'.join(tparts)
def sname(typ, t):
# FIXME: t.replace(...) is non-reversible and non-unique here!
tnew = relpath(t, vars.BASE)
#log('sname: (%r) %r -> %r\n' % (vars.BASE, t, tnew))
return vars.BASE + ('/.redo/%s^%s' % (typ, tnew.replace('/', '^')))
def add_dep(t, mode, dep):
open(sname('dep', t), 'a').write('%s %s\n' % (mode, dep))