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import os
import re
import shutil
def findFramework(path, name = None):
"find the framework folder for FW name"
if path == "" or path == "@executable_path" or path == "/":
return None
elif name == None:
return findFramework(os.path.dirname(path),
os.path.basename(path))
elif os.path.basename(path) == name + ".framework":
return path
elif len(os.path.dirname(path)) >= len(path):
print "MachO.findFramework: Oops '" + path + "', '" + name + "'"
return None
else:
return findFramework(os.path.dirname(path), name)
def stripPrefix(prefix, path):
"Returns the relative path r such that os.path.join(prefix, r) == path"
prefix = os.path.normpath(prefix)
prefixLen = len(prefix)
path = os.path.normpath(path)
if path[0 : prefixLen] == prefix:
if path[prefixLen] == os.sep:
return path[prefixLen+1 : ]
else:
return path[prefixLen : ]
else:
return path
class Executable:
"Represents an Mach-O executable."
def __init__(self, path, kind):
self.Location = path
self.Kind = kind
def __repr__(self):
return self.Location + " (" + self.Kind + ")"
def getDependencies(self):
"Return a list of MachO.Fixes describing the dependencies."
"Uses otool -L"
f = os.popen("otool -L " + self.Location, "r")
result = []
pat = re.compile("\s*([^(]*)\s\((.+)\)")
for line in f:
m = pat.match(line)
if m != None:
result.append(Fix(m.group(1), m.group(2)))
status = f.close()
return result
def applyFixes(self, changes, log):
"Uses install_name_tool to change the links to dependencies."
"changes is a dictionary mapping links (as strings) to Fixes."
args = ""
for dep in self.getDependencies():
if dep.Link in changes:
args = args + changes[dep.Link].getChange()
log.append(">> " + "install_name_tool " + args + self.Location)
if len(args) > 0:
os.system("install_name_tool " + args + self.Location)
pat = re.compile("(library)|(universal binary)")
if pat.search(self.Kind):
relName = os.path.basename(self.Location) # FIXME: rel to fw
log.append(">> " + "install_name_tool -id " + relName +
" " + self.Location)
os.system("install_name_tool -id " + relName +
" " + self.Location)
def findExecutables(bundleDir):
"Return a list of MachO.Executables found in bundleDir"
result = []
pat = re.compile("Mach-O (.+)")
for root, dirs, files in os.walk(bundleDir):
for n in files:
p = os.path.join(root, n)
f = os.popen("file -b " + p, "r")
m = pat.match(f.readline())
if m != None:
result.append(Executable(p, m.group(1)))
print "found " + m.group(1) + ": " + n
f.close()
return result
class Fix:
"Represents a fix for a library link."
def __init__(self, dependency, versionString="?"):
self.Link = dependency
self.Location = dependency
self.NewLink = dependency
self.NewLocation = dependency
self.versionString = versionString # not used yet
self.fwPath = None
self.relPath = None
def __repr__(self):
return (self.Link + " (" + self.versionString + ")")
def isAbsolute(self):
return os.path.isabs(self.Link)
def isBundleRelative(self):
return self.Link[0:17] == "@executable_path/"
def isSystem(self):
return (self.Location[0:8] == "/usr/lib" # also matches libexec
or self.Location[0:8] == "/usr/X11" # also matches X11R6
or self.Location[0:8] == "/System/")
def getChange(self):
"Returns argument for install_name_tool."
if self.Link == self.NewLink:
return ""
else:
return "-change " + self.Link + " " + self.NewLink + " "
def findLocation(self, exePath=None):
if self.isBundleRelative():
if exePath != None:
self.Location = os.path.normpath(
os.path.join(exePath, self.Link[17:]))
else:
self.Location = self.Link[17:]
else:
self.Location = self.Link
# check if done
if (os.path.isabs(self.Location) and
os.path.isfile(self.Location)):
self.NewLocation = self.Location
return True
# search for frameworks in /System/Library and /Library
fwPath = findFramework(self.Location)
if fwPath:
fwdir = os.path.dirname(fwPath)
self.relPath = stripPrefix(fwdir, self.Location)
for d in ["/Library/Frameworks",
"/System/Library/Frameworks"]:
if os.path.isfile(os.path.join(d, self.relPath)):
# self.Location = os.path.join(d, self.relPath)
self.Location = os.path.join(d, self.relPath)
self.NewLocation = self.Location
self.fwPath = os.path.join(d, os.path.basename(fwPath))
self.relPath = stripPrefix(self.fwPath, self.Location)
return True
# ok, try libs
lib = os.path.basename(self.Location)
self.relPath = None
for d in ["/usr/local/lib", "/opt/local/lib",
"/usr/lib", "/opt/lib"]:
if os.path.isfile(os.path.join(d, lib)):
self.Location = os.path.join(d, lib)
self.NewLocation = self.Location
return True
# not found
return False
def moveLibrary(self, destBundlePath, stripFW, log):
"Copies the library or fw to destBundlePath."
"Also sets NewLink and NewLocation properties"
"Returns a list of copied executables"
# dont do this if we are already inside the bundle:
if stripPrefix(destBundlePath, self.Location) != self.Location:
log.append("-- ignoring " + self.Location)
return []
if self.relPath != None and not stripFW:
# copy framework
newFwPath = os.path.join(destBundlePath,
"Contents/Frameworks",
os.path.basename(self.fwPath))
log.append(">> " + self.fwPath + " ===> " + newFwPath)
if (os.path.exists(destBundlePath) and
not os.path.exists(newFwPath)):
shutil.copytree(self.fwPath, newFwPath, True)
self.NewLocation = os.path.join(newFwPath, self.relPath)
self.NewLink = ("@executable_path/"
+ os.path.join("../Frameworks",
os.path.basename(self.fwPath),
self.relPath))
return findExecutables(newFwPath)
else:
# copy lib to bundle.app/Contents/Frameworks/
self.NewLocation = os.path.join(destBundlePath,
"Contents/Frameworks",
os.path.basename(self.Location))
self.NewLink = ("@executable_path/"
+ os.path.join("../Frameworks",
os.path.basename(self.Location)))
log.append(">> " + self.Location + " ---> " + self.NewLocation)
if (os.path.exists(destBundlePath) and
not os.path.exists(self.NewLocation)):
shutil.copy(self.Location, self.NewLocation)
return [Executable(self.NewLocation, "lib")]
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