blob: db8be91975ee979a4d6fb7a47a1e0f88c3845788 [file] [log] [blame]
# Copyright (c) 2012 The Native Client Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Recipes for NativeClient toolchain packages.
The real entry plumbing is in
import fnmatch
import os
import optparse
import process
import shutil
import StringIO
import sys
def Mkdir(path):
if path[-1] == '/':
path = path[:-1]
head, tail = os.path.split(path)
if not head:
head = '.'
if not os.path.islink(path) and not os.path.exists(path):
if not os.path.exists(head):
def Rmdir(path):
if os.path.exists(path):
print "Removing: " + path
def Symlink(srcpath, dstpath):
if os.path.islink(dstpath):
linkinfo = os.readlink(dstpath)
if linkinfo == srcpath:
return False
os.symlink(srcpath, dstpath)
return True
def AcceptMatch(name, paterns, filters):
for pat in filters:
if fnmatch.fnmatch(name, pat):
return False
for pat in paterns:
if fnmatch.fnmatch(name, pat):
return True
return False
def UpdateText(dstpath, text):
if os.path.exists(dstpath):
old = open(dstpath, 'r').read()
if old == text:
return False
with open(dstpath, 'w') as f:
return True
def UpdateFile(srcpath, dstpath, verbose=False):
if verbose:
print '%s -> %s\n' % (dstpath, srcpath)
shutil.copy(srcpath, dstpath)
def NeedsUpdate(src, dst):
if not os.path.exists(dst):
return True
stime = os.path.getmtime(src)
dtime = os.path.getmtime(dst)
return (stime > dtime)
def CopyOrLinkNewer(src, dst):
if not NeedsUpdate(src, dst):
return False
if os.path.islink(src):
linkinfo = os.readlink(src)
if os.path.islink(dst):
if os.readlink(dst) == linkinfo:
return False
os.symlink(linkinfo, dst)
UpdateFile(src, dst)
return True
def UpdateFromTo(src, dst, paterns=['*'], filters=[]):
if os.path.isfile(src):
if not AcceptMatch(src, paterns, filters):
return False
return CopyOrLinkNewer(src, dst)
if not os.path.isdir(src):
print "SRC does not exist, skipping: " + src
return False
pathlen = len(os.path.abspath(src))
modified = False
path_offs = len(src)
for root, dirs, files in os.walk(src, followlinks=False):
relroot = root[path_offs+1:]
dstdir = os.path.join(dst, relroot)
srcdir = root
# Don't travel down symlinks
if os.path.islink(root):
# Don't travel down filtered directories
if not AcceptMatch(srcdir, paterns=['*'], filters=filters):
for filename in files:
srcpath = os.path.join(srcdir, filename)
dstpath = os.path.join(dstdir, filename)
if not AcceptMatch(srcpath, paterns, filters):
if CopyOrLinkNewer(srcpath, dstpath):
print " %s -> %s" % (srcpath, dstpath)
modified = True
for filename in dirs:
srcpath = os.path.abspath(os.path.join(root, filename))
dstrel = os.path.abspath(os.path.join(root, filename))[pathlen+1:]
dstpath = os.path.join(dst, dstrel)
if os.path.islink(srcpath):
if CopyOrLinkNewer(srcpath, dstpath):
modified = True
print " %s -> %s" % (srcpath, dstpath)
if modified:
print "Update From To %s -> %s" % (src, dst)
return modified