3dfda1a636
find-doc-nits warns if you don't give a "what to do flag" Don't use regexps for section names, just strings: More consistency. Rename "COMMAND OPTIONS" to OPTIONS. Fix a couple of other nit-level things. Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2076)
277 lines
7.1 KiB
Perl
Executable file
277 lines
7.1 KiB
Perl
Executable file
#! /usr/bin/env perl
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# Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the OpenSSL license (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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require 5.10.0;
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use warnings;
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use strict;
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use Pod::Checker;
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use File::Find;
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use File::Basename;
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use File::Spec::Functions;
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use Getopt::Std;
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use lib catdir(dirname($0), "perl");
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use OpenSSL::Util::Pod;
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# Options.
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our($opt_s);
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our($opt_u);
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our($opt_h);
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our($opt_n);
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sub help()
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{
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print <<EOF;
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Find small errors (nits) in documentation. Options:
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-n Print nits in POD pages
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-s Also print missing sections in POD pages (implies -n)
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-u List undocumented functions
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-h Print this help message
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EOF
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exit;
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}
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my $temp = '/tmp/docnits.txt';
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my $OUT;
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my %mandatory_sections =
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( '*' => [ 'NAME', 'DESCRIPTION', 'COPYRIGHT' ],
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1 => [ 'SYNOPSIS', 'OPTIONS' ],
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3 => [ 'SYNOPSIS', 'RETURN VALUES' ],
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5 => [ ],
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7 => [ ] );
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# Cross-check functions in the NAME and SYNOPSIS section.
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sub name_synopsis()
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{
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my $id = shift;
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my $filename = shift;
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my $contents = shift;
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# Get NAME section and all words in it.
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return unless $contents =~ /=head1 NAME(.*)=head1 SYNOPSIS/ms;
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my $tmp = $1;
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$tmp =~ tr/\n/ /;
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$tmp =~ s/-.*//g;
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$tmp =~ s/,//g;
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my $dirname = dirname($filename);
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my $simplename = basename($filename);
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$simplename =~ s/.pod$//;
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my $foundfilename = 0;
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my %foundfilenames = ();
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my %names;
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foreach my $n ( split ' ', $tmp ) {
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$names{$n} = 1;
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$foundfilename++ if $n eq $simplename;
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$foundfilenames{$n} = 1
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if -f "$dirname/$n.pod" && $n ne $simplename;
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}
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print "$id the following exist as other .pod files:\n",
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join(" ", sort keys %foundfilenames), "\n"
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if %foundfilenames;
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print "$id $simplename (filename) missing from NAME section\n",
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unless $foundfilename;
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# Find all functions in SYNOPSIS
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return unless $contents =~ /=head1 SYNOPSIS(.*)=head1 DESCRIPTION/ms;
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my $syn = $1;
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foreach my $line ( split /\n+/, $syn ) {
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my $sym;
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$line =~ s/STACK_OF\([^)]+\)/int/g;
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$line =~ s/__declspec\([^)]+\)//;
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if ( $line =~ /typedef.* (\S+);/ ) {
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$sym = $1;
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} elsif ( $line =~ /#define ([A-Za-z0-9_]+)/ ) {
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$sym = $1;
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} elsif ( $line =~ /([A-Za-z0-9_]+)\(/ ) {
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$sym = $1;
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}
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else {
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next;
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}
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print "$id $sym missing from NAME section\n"
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unless defined $names{$sym};
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$names{$sym} = 2;
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# Do some sanity checks on the prototype.
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print "$id prototype missing spaces around commas: $line\n"
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if ( $line =~ /[a-z0-9],[^ ]/ );
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}
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foreach my $n ( keys %names ) {
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next if $names{$n} == 2;
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print "$id $n missing from SYNOPSIS\n";
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}
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}
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sub check()
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{
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my $filename = shift;
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my $dirname = basename(dirname($filename));
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my $contents = '';
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{
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local $/ = undef;
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open POD, $filename or die "Couldn't open $filename, $!";
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$contents = <POD>;
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close POD;
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}
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my $id = "${filename}:1:";
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&name_synopsis($id, $filename, $contents)
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unless $contents =~ /=for comment generic/
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or $filename =~ m@man[157]/@;
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print "$id doesn't start with =pod\n"
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if $contents !~ /^=pod/;
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print "$id doesn't end with =cut\n"
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if $contents !~ /=cut\n$/;
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print "$id more than one cut line.\n"
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if $contents =~ /=cut.*=cut/ms;
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print "$id missing copyright\n"
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if $contents !~ /Copyright .* The OpenSSL Project Authors/;
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print "$id copyright not last\n"
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if $contents =~ /head1 COPYRIGHT.*=head/ms;
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print "$id head2 in All uppercase\n"
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if $contents =~ /head2\s+[A-Z ]+\n/;
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print "$id extra space after head\n"
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if $contents =~ /=head\d\s\s+/;
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print "$id period in NAME section\n"
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if $contents =~ /=head1 NAME.*\.\n.*=head1 SYNOPSIS/ms;
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print "$id POD markup in NAME section\n"
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if $contents =~ /=head1 NAME.*[<>].*=head1 SYNOPSIS/ms;
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# Look for multiple consecutive openssl #include lines.
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# Consecutive because of files like md5.pod. Sometimes it's okay
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# or necessary, as in ssl/SSL_set1_host.pod
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if ( $contents !~ /=for comment multiple includes/ ) {
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if ( $contents =~ /=head1 SYNOPSIS(.*)=head1 DESCRIPTION/ms ) {
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my $count = 0;
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foreach my $line ( split /\n+/, $1 ) {
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if ( $line =~ m@include <openssl/@ ) {
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if ( ++$count == 2 ) {
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print "$id has multiple includes\n";
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}
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} else {
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$count = 0;
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}
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}
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}
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}
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return unless $opt_s;
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# Find what section this page is in. If run from "." assume
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# section 3.
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my $section = 3;
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$section = $1 if $dirname =~ /man([1-9])/;
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foreach ((@{$mandatory_sections{'*'}}, @{$mandatory_sections{$section}})) {
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print "$id: missing $_ head1 section\n"
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if $contents !~ /^=head1\s+${_}\s*$/m;
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}
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open my $OUT, '>', $temp
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or die "Can't open $temp, $!";
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podchecker($filename, $OUT);
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close $OUT;
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open $OUT, '<', $temp
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or die "Can't read $temp, $!";
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while ( <$OUT> ) {
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next if /\(section\) in.*deprecated/;
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print;
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}
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close $OUT;
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unlink $temp || warn "Can't remove $temp, $!";
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}
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my %dups;
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sub parsenum()
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{
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my $file = shift;
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my @apis;
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open my $IN, '<', $file
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or die "Can't open $file, $!, stopped";
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while ( <$IN> ) {
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next if /\bNOEXIST\b/;
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next if /\bEXPORT_VAR_AS_FUNC\b/;
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push @apis, $1 if /([^\s]+).\s/;
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}
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close $IN;
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print "# Found ", scalar(@apis), " in $file\n";
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return sort @apis;
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}
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sub getdocced()
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{
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my $dir = shift;
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my %return;
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foreach my $pod ( glob("$dir/*.pod") ) {
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my %podinfo = extract_pod_info($pod);
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foreach my $n ( @{$podinfo{names}} ) {
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$return{$n} = $pod;
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print "# Duplicate $n in $pod and $dups{$n}\n"
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if defined $dups{$n} && $dups{$n} ne $pod;
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$dups{$n} = $pod;
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}
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}
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return %return;
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}
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my %docced;
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sub printem()
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{
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my $libname = shift;
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my $numfile = shift;
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my $count = 0;
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foreach my $func ( &parsenum($numfile) ) {
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next if $docced{$func};
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# Skip ASN1 utilities
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next if $func =~ /^ASN1_/;
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print "$libname:$func\n";
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$count++;
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}
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print "# Found $count missing from $numfile\n\n";
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}
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getopts('nshu');
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&help() if ( $opt_h );
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die "Need one of -n -s or -u flags.\n"
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unless $opt_n or $opt_s or $opt_u;
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if ( $opt_n or $opt_s ) {
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foreach (@ARGV ? @ARGV : glob('doc/*/*.pod')) {
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&check($_);
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}
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}
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if ( $opt_u ) {
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my %temp = &getdocced('doc/man3');
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foreach ( keys %temp ) {
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$docced{$_} = $temp{$_};
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}
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&printem('crypto', 'util/libcrypto.num');
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&printem('ssl', 'util/libssl.num');
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}
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exit;
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