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Lines 7-13
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| 7 |
import portage_exception |
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import portage_exception |
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from portage_dep import isvalidatom |
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from portage_dep import isvalidatom |
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import sys,string,shlex,os,errno |
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import os, errno, shlex, stat, string, sys |
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try: |
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try: |
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import cPickle |
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import cPickle |
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except ImportError: |
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except ImportError: |
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Lines 829-861
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| 829 |
self.updateprotect() |
829 |
self.updateprotect() |
| 830 |
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830 |
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| 831 |
def updateprotect(self): |
831 |
def updateprotect(self): |
| 832 |
#do some config file management prep |
832 |
"""Update internal state for isprotected() calls. A trailing / is |
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|
833 |
automatically added to paths that are identified as directories by lstat |
| 834 |
calls (works for actual directories and symlinks to directories). All |
| 835 |
other paths that exist will not have a trailing /. Non-existant paths |
| 836 |
are ignored. The merge phase must call this method each time that a |
| 837 |
symlink to a directory is merged!""" |
| 833 |
self.protect = [] |
838 |
self.protect = [] |
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839 |
self._dirs = set() |
| 834 |
for x in self.protect_list: |
840 |
for x in self.protect_list: |
| 835 |
ppath = normalize_path( |
841 |
ppath = normalize_path( |
| 836 |
os.path.join(self.myroot, x.lstrip(os.path.sep))) + os.path.sep |
842 |
os.path.join(self.myroot, x.lstrip(os.path.sep))) |
| 837 |
if os.path.isdir(ppath): |
843 |
mystat = None |
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844 |
try: |
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if stat.S_ISDIR(os.lstat(ppath).st_mode): |
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self._dirs.add(ppath) |
| 838 |
self.protect.append(ppath) |
847 |
self.protect.append(ppath) |
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848 |
except OSError: |
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# If it doesn't exist, there's no need to protect it. |
| 850 |
pass |
| 839 |
|
851 |
|
| 840 |
self.protectmask = [] |
852 |
self.protectmask = [] |
| 841 |
for x in self.mask_list: |
853 |
for x in self.mask_list: |
| 842 |
ppath = normalize_path( |
854 |
ppath = normalize_path( |
| 843 |
os.path.join(self.myroot, x.lstrip(os.path.sep))) + os.path.sep |
855 |
os.path.join(self.myroot, x.lstrip(os.path.sep))) |
| 844 |
if os.path.isdir(ppath): |
856 |
mystat = None |
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857 |
try: |
| 858 |
if stat.S_ISDIR(os.lstat(ppath).st_mode): |
| 859 |
self._dirs.add(ppath) |
| 845 |
self.protectmask.append(ppath) |
860 |
self.protectmask.append(ppath) |
| 846 |
#if it doesn't exist, silently skip it |
861 |
except OSError: |
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862 |
# If it doesn't exist, there's no need to mask it. |
| 863 |
pass |
| 847 |
|
864 |
|
| 848 |
def isprotected(self, obj): |
865 |
def isprotected(self, obj): |
| 849 |
"""Checks if obj is in the current protect/mask directories. Returns |
866 |
"""Returns True if obj is protected, False otherwise. The caller must |
| 850 |
0 on unprotected/masked, and 1 on protected.""" |
867 |
ensure that obj is normalized with a single leading slash. A trailing |
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868 |
slash is optional for directories.""" |
| 851 |
masked = 0 |
869 |
masked = 0 |
| 852 |
protected = 0 |
870 |
protected = 0 |
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|
871 |
sep = os.path.sep |
| 853 |
for ppath in self.protect: |
872 |
for ppath in self.protect: |
| 854 |
if len(ppath) > masked and obj.startswith(ppath): |
873 |
if len(ppath) > masked and obj.startswith(ppath): |
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874 |
if ppath in self._dirs: |
| 875 |
if obj != ppath and not obj.startswith(ppath + sep): |
| 876 |
# /etc/foo does not match /etc/foobaz |
| 877 |
continue |
| 878 |
elif obj != ppath: |
| 879 |
# force exact match when CONFIG_PROTECT lists a |
| 880 |
# non-directory |
| 881 |
continue |
| 855 |
protected = len(ppath) |
882 |
protected = len(ppath) |
| 856 |
#config file management |
883 |
#config file management |
| 857 |
for pmpath in self.protectmask: |
884 |
for pmpath in self.protectmask: |
| 858 |
if len(pmpath) >= protected and obj.startswith(pmpath): |
885 |
if len(pmpath) >= protected and obj.startswith(pmpath): |
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886 |
if pmpath in self._dirs: |
| 887 |
if obj != pmpath and \ |
| 888 |
not obj.startswith(pmpath + sep): |
| 889 |
# /etc/foo does not match /etc/foobaz |
| 890 |
continue |
| 891 |
elif obj != pmpath: |
| 892 |
# force exact match when CONFIG_PROTECT_MASK lists |
| 893 |
# a non-directory |
| 894 |
continue |
| 859 |
#skip, it's in the mask |
895 |
#skip, it's in the mask |
| 860 |
masked = len(pmpath) |
896 |
masked = len(pmpath) |
| 861 |
return protected > masked |
897 |
return protected > masked |
