Cleaned up code for patch handling, fix bug in subdir handling, include patch info in help.
git-svn-id: svn+ssh://svn.code.sf.net/p/flawfinder/code/trunk@10 5c01084b-1f27-0410-9f85-80411afe95dc
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dwheeler
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@ -1,3 +1,7 @@
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2007-01-16 Sebastien Tandel <sebastien, at, tandel (doht) be)
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* Cleaned up code for patch handling, fix bug in subdir handling,
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include patch info in help.
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2007-01-15 Steve Kemp <steve at shellcode dot org>
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* Fix Debian bug #268236.
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http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=268236
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72
flawfinder
72
flawfinder
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@ -127,6 +127,7 @@ blank_line = re.compile( r'(?m)^\s+$' )
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# format, use "patch" to apply it, and then use "diff -u" to create a
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# unified format.
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#
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diff_index_filename = re.compile( r'^Index:\s+(?P<filename>.*)' )
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diff_newfile = re.compile( r'^\+\+\+\s(?P<filename>.*)$' )
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diff_hunk = re.compile( r'^@@ -\d+(,\d+)?\s+\+(?P<linenumber>\d+)[, ].*@@$' )
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@ -141,6 +142,24 @@ diff_line_del = re.compile( r'^-[^-].*' )
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# Note that the expression below is Y10K (and Y100K) ready. :-).
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diff_findjunk = re.compile( r'^(?P<filename>.*)((\s\d\d\d\d+-\d\d-\d\d\s+\d\d:\d[0-9:.]+Z?(\s+[\-\+0-9A-Z]+)?)|(\s[A-Za-z][a-z]+\s[A-za-z][a-z]+\s\d+\s\d+:\d[0-9:.]+Z?(\s[\-\+0-9]*)?\s\d\d\d\d+)|(\s\(.*\)))\s*$')
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def is_svn_diff(sLine):
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if (sLine.find('Index:') != -1):
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return True
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return False
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def svn_diff_get_filename(sLine):
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return diff_index_filename.match(sLine)
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def gnu_diff_get_filename(sLine):
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newfile_match = diff_newfile.match(sLine)
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if (newfile_match):
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patched_filename = string.strip(newfile_match.group('filename'))
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# Clean up filename - remove trailing timestamp and/or (comment).
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return diff_findjunk.match(patched_filename)
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return None
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# For each file found in the file patch_file, keep the
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# line numbers of the new file (after patch is applied) which are added.
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# We keep this information in a hash table for a quick access later.
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@ -157,51 +176,36 @@ def load_patch_info(patch_file):
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patched_filename = "" # Name of new file patched by current hunk.
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while True: # Loop-and-half construct. Read a line, end loop when no more
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sLine = hPatch.readline()
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if (sLine == ''): break # Done reading.
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#Heuristic to determine if it's a svn diff or a GNU diff.
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#Read the first line. If it contains 'Index:', it's a svn diff else it is a
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#GNU diff.
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#By default we try to get filename in svn diff
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fn_get_filename=svn_diff_get_filename
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if (is_svn_diff(sLine) == False):
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fn_get_filename=gnu_diff_get_filename
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while True: # Loop-and-half construct. Read a line, end loop when no more
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# This is really a sequence of if ... elsif ... elsif..., but
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# because Python forbids '=' in conditions, we do it this way.
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index_filename_match = diff_index_filename.match(sLine)
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if (index_filename_match):
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patched_filename = string.strip(index_filename_match.group('filename'))
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index_statement = True
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# Should never happen (like below):
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filename_match = fn_get_filename(sLine)
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if (filename_match):
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patched_filename = string.strip(filename_match.group('filename'))
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if (patch.has_key(patched_filename) == True):
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error("filename occurs more than once in the patch: %s" %
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patched_filename)
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sys.exit(1)
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else:
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patch[patched_filename] = {}
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else:
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newfile_match = diff_newfile.match(sLine)
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# We'll ignore the match if patched_filename already set. This makes
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# "Index:" takes precedence over "+++". We do this because "Index:"
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# doesn't have junk after it that might be mistaken for part
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# of the filename.
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if ( (not index_statement) and newfile_match):
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patched_filename = string.strip(newfile_match.group('filename'))
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# Clean up filename - remove trailing timestamp and/or (comment).
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findjunk_match = diff_findjunk.match(patched_filename)
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if (findjunk_match):
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patched_filename = string.strip(findjunk_match.group('filename'))
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# Now we have the filename! Check if we've already seen it
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# (we should not have), just like above:
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if (patch.has_key(patched_filename)):
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error("filename occurs more than once in the patch: %s" %
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patched_filename)
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else:
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patch[patched_filename] = {}
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else:
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hunk_match = diff_hunk.match(sLine)
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if (hunk_match):
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if (patched_filename == ""):
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error("wrong type of patch file : we have a line number without having seen a filename")
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sys.exit(1)
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initial_number= hunk_match.group('linenumber')
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line_counter= 0
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else:
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line_added_match = diff_line_added.match(sLine)
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if (line_added_match):
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@ -214,11 +218,14 @@ def load_patch_info(patch_file):
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patch[patched_filename][line_added - 1] = True
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patch[patched_filename][line_added + 1] = True
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line_counter += 1
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else:
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line_del_match = diff_line_del.match(sLine)
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if (line_del_match == None):
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line_counter += 1
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sLine = hPatch.readline()
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if (sLine == ''): break # Done reading.
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return patch
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@ -1448,7 +1455,8 @@ def maybe_process_file(f, patch_infos):
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if not quiet: print "Warning: skipping symbolic link directory", h(f)
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num_links_skipped = num_links_skipped + 1
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return
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if (skipdotdir and ("." == os.path.basename(f)[0])):
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base_filename = os.path.basename(f)
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if (skipdotdir and len(base_filename) > 0 and ("." == base_filename[0])):
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if not quiet: print "Warning: skipping directory with initial dot", h(f)
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num_dotdirs_skipped = num_dotdirs_skipped + 1
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return
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@ -1512,7 +1520,7 @@ flawfinder [--help] [--context] [-c] [--columns | -C] [--html]
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[--dataonly | -D]
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[--minlevel=X | -m X]
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[--immediate] [-i] [--inputs | -I] [--neverignore | -n]
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[--quiet | -Q] [--singleline | -S ]
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[ --patch=F ] [--quiet | -Q] [--singleline | -S ]
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[--loadhitlist=F ] [ --savehitlist=F ] [ --diffhitlist=F ]
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[--listrules]
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[--] [ source code file or source root directory ]+
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