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"""macostools - Various utility functions for MacOS.
mkalias(src, dst) - Create a finder alias 'dst' pointing to 'src'
copy(src, dst) - Full copy of 'src' to 'dst'
"""
import macfs
import Res
import os
from MACFS import *
import MacOS
import time
try:
openrf = MacOS.openrf
except AttributeError:
# Backward compatability
openrf = open
Error = 'macostools.Error'
FSSpecType = type(macfs.FSSpec(':'))
BUFSIZ=0x80000 # Copy in 0.5Mb chunks
#
# Not guaranteed to be correct or stay correct (Apple doesn't tell you
# how to do this), but it seems to work.
#
def mkalias(src, dst):
"""Create a finder alias"""
srcfss = macfs.FSSpec(src)
dstfss = macfs.FSSpec(dst)
alias = srcfss.NewAlias()
srcfinfo = srcfss.GetFInfo()
Res.FSpCreateResFile(dstfss, srcfinfo.Creator, srcfinfo.Type, -1)
h = Res.FSpOpenResFile(dstfss, 3)
resource = Res.Resource(alias.data)
resource.AddResource('alis', 0, '')
Res.CloseResFile(h)
dstfinfo = dstfss.GetFInfo()
dstfinfo.Flags = dstfinfo.Flags|0x8000 # Alias flag
dstfss.SetFInfo(dstfinfo)
def mkdirs(dst):
"""Make directories leading to 'dst' if they don't exist yet"""
if dst == '' or os.path.exists(dst):
return
head, tail = os.path.split(dst)
if not ':' in head:
head = head + ':'
mkdirs(head)
os.mkdir(dst, 0777)
def touched(dst):
"""Tell the finder a file has changed"""
file_fss = macfs.FSSpec(dst)
vRefNum, dirID, name = file_fss.as_tuple()
dir_fss = macfs.FSSpec((vRefNum, dirID, ''))
crdate, moddate, bkdate = dir_fss.GetDates()
now = time.time()
if now == moddate:
now = now + 1
dir_fss.SetDates(crdate, now, bkdate)
def copy(src, dst, createpath=0, copydates=1):
"""Copy a file, including finder info, resource fork, etc"""
if createpath:
mkdirs(os.path.split(dst)[0])
srcfss = macfs.FSSpec(src)
dstfss = macfs.FSSpec(dst)
ifp = open(srcfss.as_pathname(), 'rb')
ofp = open(dstfss.as_pathname(), 'wb')
d = ifp.read(BUFSIZ)
while d:
ofp.write(d)
d = ifp.read(BUFSIZ)
ifp.close()
ofp.close()
ifp = openrf(srcfss.as_pathname(), '*rb')
ofp = openrf(dstfss.as_pathname(), '*wb')
d = ifp.read(BUFSIZ)
while d:
ofp.write(d)
d = ifp.read(BUFSIZ)
ifp.close()
ofp.close()
sf = srcfss.GetFInfo()
df = dstfss.GetFInfo()
df.Creator, df.Type = sf.Creator, sf.Type
df.Flags = (sf.Flags & (kIsStationary|kNameLocked|kHasBundle|kIsInvisible|kIsAlias))
dstfss.SetFInfo(df)
if copydates:
crdate, mddate, bkdate = srcfss.GetDates()
dstfss.SetDates(crdate, mddate, bkdate)
touched(dstfss)
def copytree(src, dst, copydates=1):
"""Copy a complete file tree to a new destination"""
if os.path.isdir(src):
mkdirs(dst)
files = os.listdir(src)
for f in files:
copytree(os.path.join(src, f), os.path.join(dst, f), copydates)
else:
copy(src, dst, 1, copydates)
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