summaryrefslogtreecommitdiffstats
path: root/Demo/comparisons/systemtest.py
diff options
context:
space:
mode:
Diffstat (limited to 'Demo/comparisons/systemtest.py')
-rwxr-xr-xDemo/comparisons/systemtest.py74
1 files changed, 0 insertions, 74 deletions
diff --git a/Demo/comparisons/systemtest.py b/Demo/comparisons/systemtest.py
deleted file mode 100755
index 8276333..0000000
--- a/Demo/comparisons/systemtest.py
+++ /dev/null
@@ -1,74 +0,0 @@
-#! /usr/bin/env python3
-
-# 3) System Test
-#
-# Given a list of directories, report any bogus symbolic links contained
-# anywhere in those subtrees. A bogus symbolic link is one that cannot
-# be resolved because it points to a nonexistent or otherwise
-# unresolvable file. Do *not* use an external find executable.
-# Directories may be very very deep. Print a warning immediately if the
-# system you're running on doesn't support symbolic links.
-
-# This implementation:
-# - takes one optional argument, using the current directory as default
-# - uses chdir to increase performance
-# - sorts the names per directory
-# - prints output lines of the form "path1 -> path2" as it goes
-# - prints error messages about directories it can't list or chdir into
-
-import os
-import sys
-from stat import *
-
-def main():
- try:
- # Note: can't test for presence of lstat -- it's always there
- dummy = os.readlink
- except AttributeError:
- print("This system doesn't have symbolic links")
- sys.exit(0)
- if sys.argv[1:]:
- prefix = sys.argv[1]
- else:
- prefix = ''
- if prefix:
- os.chdir(prefix)
- if prefix[-1:] != '/': prefix = prefix + '/'
- reportboguslinks(prefix)
- else:
- reportboguslinks('')
-
-def reportboguslinks(prefix):
- try:
- names = os.listdir('.')
- except os.error as msg:
- print("%s%s: can't list: %s" % (prefix, '.', msg))
- return
- names.sort()
- for name in names:
- if name == os.curdir or name == os.pardir:
- continue
- try:
- mode = os.lstat(name)[ST_MODE]
- except os.error:
- print("%s%s: can't stat: %s" % (prefix, name, msg))
- continue
- if S_ISLNK(mode):
- try:
- os.stat(name)
- except os.error:
- print("%s%s -> %s" % \
- (prefix, name, os.readlink(name)))
- elif S_ISDIR(mode):
- try:
- os.chdir(name)
- except os.error as msg:
- print("%s%s: can't chdir: %s" % \
- (prefix, name, msg))
- continue
- try:
- reportboguslinks(prefix + name + '/')
- finally:
- os.chdir('..')
-
-main()