Staging
v0.5.1
v0.5.1
https://github.com/python/cpython
Tip revision: 1da43e5e916949c8e849e656d9d05fa4b9d6836c authored by Benjamin Peterson on 26 June 2009, 13:21:52 UTC
rearrange the sections of the README, so they'll hopefully be more in the order people will interested in
rearrange the sections of the README, so they'll hopefully be more in the order people will interested in
Tip revision: 1da43e5
mkrcs.py
#! /usr/bin/env python
# A rather specialized script to make sure that a symbolic link named
# RCS exists pointing to a real RCS directory in a parallel tree
# referenced as RCStree in an ancestor directory.
# (I use this because I like my RCS files to reside on a physically
# different machine).
import os
def main():
rcstree = 'RCStree'
rcs = 'RCS'
if os.path.islink(rcs):
print('%r is a symlink to %r' % (rcs, os.readlink(rcs)))
return
if os.path.isdir(rcs):
print('%r is an ordinary directory' % (rcs,))
return
if os.path.exists(rcs):
print('%r is a file?!?!' % (rcs,))
return
#
p = os.getcwd()
up = ''
down = ''
# Invariants:
# (1) join(p, down) is the current directory
# (2) up is the same directory as p
# Ergo:
# (3) join(up, down) is the current directory
#print 'p =', repr(p)
while not os.path.isdir(os.path.join(p, rcstree)):
head, tail = os.path.split(p)
#print 'head = %r; tail = %r' % (head, tail)
if not tail:
print('Sorry, no ancestor dir contains %r' % (rcstree,))
return
p = head
up = os.path.join(os.pardir, up)
down = os.path.join(tail, down)
#print 'p = %r; up = %r; down = %r' % (p, up, down)
there = os.path.join(up, rcstree)
there = os.path.join(there, down)
there = os.path.join(there, rcs)
if os.path.isdir(there):
print('%r already exists' % (there, ))
else:
print('making %r' % (there,))
makedirs(there)
print('making symlink %r -> %r' % (rcs, there))
os.symlink(there, rcs)
def makedirs(p):
if not os.path.isdir(p):
head, tail = os.path.split(p)
makedirs(head)
os.mkdir(p, 0o777)
if __name__ == "__main__":
main()