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#!/usr/bin/env perl
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# SPDX-License-Identifier: curl
#
###########################################################################
use strict;
use warnings;
#######################################################################
# Check for a command in the PATH of the test server.
#
sub checkcmd {
my ($cmd)=@_;
my @paths;
if($^O eq 'MSWin32' || $^O eq 'dos' || $^O eq 'os2') {
# PATH separator is different
@paths=(split(';', $ENV{'PATH'}));
}
else {
@paths=(split(':', $ENV{'PATH'}), "/usr/sbin", "/usr/local/sbin",
"/sbin", "/usr/bin", "/usr/local/bin");
}
for(@paths) {
if(-x "$_/$cmd" && ! -d "$_/$cmd") {
# executable bit but not a directory!
return "$_/$cmd";
}
}
return "";
}
my $pmccabe = checkcmd("pmccabe");
if(!$pmccabe) {
print "Make sure 'pmccabe' exists in your PATH\n";
exit 1;
}
if(! -r "lib/url.c" || ! -r "lib/urldata.h") {
print "Invoke this script in the curl source tree root\n";
exit 1;
}
my @files;
open(F, "git ls-files '*.c'|");
while(<F>) {
chomp $_;
my $file = $_;
# we can't filter these with git so do it here
if($file =~ /^(lib|src)/) {
push @files, $file;
}
}
my $cmd = "$pmccabe ".join(" ", @files);
my @output=`$cmd`;
# these functions can have these scores, but not higher
my %whitelist = (
);
# functions with complexity above this level causes the function to return error
my $cutoff = 70;
# functions above this complexity level are shown
my $show = 57;
my $error = 0;
my %where;
my %perm;
my $allscore = 0;
my $alllines = 0;
# each line starts with the complexity score
# 142 417 809 1677 1305 src/tool_getparam.c(1677): getparameter
for my $l (@output) {
chomp $l;
if($l =~/^(\d+)\t\d+\t\d+\t\d+\t(\d+)\t([^\(]+).*: ([^ ]*)/) {
my ($score, $len, $path, $func)=($1, $2, $3, $4);
if($score > $show) {
my $allow = 0;
if($whitelist{$func} &&
($score <= $whitelist{$func})) {
$allow = 1;
}
$where{"$path:$func"}=$score;
$perm{"$path:$func"}=$allow;
if(($score > $cutoff) && !$allow) {
$error++;
}
}
$alllines += $len;
$allscore += ($len * $score);
}
}
my $showncutoff;
for my $e (sort {$where{$b} <=> $where{$a}} keys %where) {
if(!$showncutoff &&
($where{$e} <= $cutoff)) {
print "\n---- threshold: $cutoff ----\n\n";
$showncutoff = 1;
}
printf "%-5d %s%s\n", $where{$e}, $e,
$perm{$e} ? " [ALLOWED]": "";
}
printf "\nAverage complexity: %.2f\n", $allscore / $alllines;
exit $error;
|
