t7x/deps/curl/tests/check-deprecated.pl
2023-12-06 17:43:39 -05:00

330 lines
9.3 KiB
Perl

#!/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
#
#
###########################################################################
#
# Check that the deprecated statuses of functions and enum values in header
# files, man pages and symbols-in-versions are in sync.
use strict;
use warnings;
use File::Basename;
my $root=$ARGV[0] || ".";
my $incdir = "$root/include/curl";
my $docdir = "$root/docs";
my $libdocdir = "$docdir/libcurl";
my $errcode = 0;
# Symbol-indexed hashes.
# Values are:
# X Not deprecated
# ? Deprecated in unknown version
# x.yy.z Deprecated in version x.yy.z
my %syminver; # Symbols-in-versions deprecations.
my %hdr; # Public header files deprecations.
my %funcman; # Function man pages deprecations.
my %optman; # Option man pages deprecations.
# Scan header file for public function and enum values. Flag them with
# the version they are deprecated in, if some.
sub scan_header {
my ($f)=@_;
my $line = "";
my $incomment = 0;
my $inenum = 0;
open(my $h, "<", "$f");
while(<$h>) {
s/^\s*(.*?)\s*$/$1/; # Trim.
# Remove multi-line comment trail.
if($incomment) {
if($_ !~ /.*?\*\/\s*(.*)$/) {
next;
}
$_ = $1;
$incomment = 0;
}
if($line ne "") {
# Unfold line.
$_ = "$line $1";
$line = "";
}
# Remove comments.
while($_ =~ /^(.*?)\/\*.*?\*\/(.*)$/) {
$_ = "$1 $2";
}
if($_ =~ /^(.*)\/\*/) {
$_ = "$1 ";
$incomment = 1;
}
s/^\s*(.*?)\s*$/$1/; # Trim again.
# Ignore preprocessor directives and blank lines.
if($_ =~ /^(?:#|$)/) {
next;
}
# Handle lines that may be continued as if they were folded.
if($_ !~ /[;,{}]$/) {
# Folded line.
$line = $_;
next;
}
if($_ =~ /CURLOPTDEPRECATED\(/) {
# Handle deprecated CURLOPT_* option.
if($_ !~ /CURLOPTDEPRECATED\(\s*(\S+)\s*,(?:.*?,){2}\s*(.*?)\s*,.*"\)/) {
# Folded line.
$line = $_;
next;
}
$hdr{$1} = $2;
}
elsif($_ =~ /CURLOPT\(/) {
# Handle non-deprecated CURLOPT_* option.
if($_ !~ /CURLOPT\(\s*(\S+)\s*(?:,.*?){2}\)/) {
# Folded line.
$line = $_;
next;
}
$hdr{$1} = "X";
}
else {
my $version = "X";
# Get other kind of deprecation from this line.
if($_ =~ /CURL_DEPRECATED\(/) {
if($_ !~ /^(.*)CURL_DEPRECATED\(\s*(\S+?)\s*,.*?"\)(.*)$/) {
# Folded line.
$line = $_;
next;
}
$version = $2;
$_ = "$1 $3";
}
if($_ =~ /^CURL_EXTERN\s+.*\s+(\S+?)\s*\(/) {
# Flag public function.
$hdr{$1} = $version;
}
elsif($inenum && $_ =~ /(\w+)\s*[,=}]/) {
# Flag enum value.
$hdr{$1} = $version;
}
}
# Remember if we are in an enum definition.
$inenum |= ($_ =~ /\benum\b/);
if($_ =~ /}/) {
$inenum = 0;
}
}
close $h;
}
# Scan function man page for options.
# Each option has to be declared as ".IP <option>" where <option> starts with
# the prefix. Flag each option with its deprecation version, if some.
sub scan_man_for_opts {
my ($f, $prefix)=@_;
my $opt = "";
my $line = "";
open(my $m, "<", "$f");
while(<$m>) {
if($_ =~ /^\./) {
# roff directive found: end current option paragraph.
my $o = $opt;
$opt = "";
if($_ =~ /^\.IP\s+((?:$prefix)_\w+)/) {
# A new option has been found.
$opt = $1;
}
$_ = $line; # Get full paragraph.
$line = "";
s/\\f.//g; # Remove font formatting.
s/\s+/ /g; # One line with single space only.
if($o) {
$funcman{$o} = "X";
# Check if paragraph is mentioning deprecation.
while($_ =~ /(?:deprecated|obsoleted?)\b\s*(?:in\b|since\b)?\s*(?:version\b|curl\b|libcurl\b)?\s*(\d[0-9.]*\d)?\b\s*(.*)$/i) {
$funcman{$o} = $1 || "?";
$_ = $2;
}
}
}
else {
# Text line: accumulate.
$line .= $_;
}
}
close $m;
}
# Scan man page for deprecation in DESCRIPTION and/or AVAILABILITY sections.
sub scan_man_page {
my ($path, $sym, $table)=@_;
my $version = "X";
if(open(my $fh, "<", "$path")) {
my $section = "";
my $line = "";
while(<$fh>) {
if($_ =~ /\.so\s+man3\/(.*\.3\b)/) {
# Handle man page inclusion.
scan_man_page(dirname($path) . "/$1", $sym, $table);
$version = exists($$table{$sym})? $$table{$sym}: $version;
}
elsif($_ =~ /^\./) {
# Line is a roff directive.
if($_ =~ /^\.SH\b\s*(\w*)/) {
# Section starts. End previous one.
my $sh = $section;
$section = $1;
$_ = $line; # Previous section text.
$line = "";
s/\\f.//g;
s/\s+/ /g;
s/\\f.//g; # Remove font formatting.
s/\s+/ /g; # One line with single space only.
if($sh =~ /DESCRIPTION|AVAILABILITY/) {
while($_ =~ /(?:deprecated|obsoleted?)\b\s*(?:in\b|since\b)?\s*(?:version\b|curl\b|libcurl\b)?\s*(\d[0-9.]*\d)?\b\s*(.*)$/i) {
# Flag deprecation status.
if($version ne "X" && $version ne "?") {
if($1 && $1 ne $version) {
print "error: $sym man page lists unmatching deprecation versions $version and $1\n";
$errcode++;
}
}
else {
$version = $1 || "?";
}
$_ = $2;
}
}
}
}
else {
# Text line: accumulate.
$line .= $_;
}
}
close $fh;
$$table{$sym} = $version;
}
}
# Read symbols-in-versions.
open(my $fh, "<", "$libdocdir/symbols-in-versions") ||
die "$libdocdir/symbols-in-versions";
while(<$fh>) {
if($_ =~ /^((?:CURL|LIBCURL)\S+)\s+\S+\s*(\S*)\s*(\S*)$/) {
if($3 eq "") {
$syminver{$1} = "X";
if($2 ne "" && $2 ne ".") {
$syminver{$1} = $2;
}
}
}
}
close($fh);
# Get header file names,
opendir(my $dh, $incdir) || die "Can't opendir $incdir";
my @hfiles = grep { /\.h$/ } readdir($dh);
closedir $dh;
# Get functions and enum symbols from header files.
for(@hfiles) {
scan_header("$incdir/$_");
}
# Get function statuses from man pages.
foreach my $sym (keys %hdr) {
if($sym =~/^(?:curl|curlx)_\w/) {
scan_man_page("$libdocdir/$sym.3", $sym, \%funcman);
}
}
# Get options from function man pages.
scan_man_for_opts("$libdocdir/curl_easy_setopt.3", "CURLOPT");
scan_man_for_opts("$libdocdir/curl_easy_getinfo.3", "CURLINFO");
# Get deprecation status from option man pages.
foreach my $sym (keys %syminver) {
if($sym =~ /^(?:CURLOPT|CURLINFO)_\w+$/) {
scan_man_page("$libdocdir/opts/$sym.3", $sym, \%optman);
}
}
# Print results.
my %keys = (%syminver, %funcman, %optman, %hdr);
my $leader = <<HEADER
Legend:
<empty> Not listed
X Not deprecated
? Deprecated in unknown version
x.yy.z Deprecated in version x.yy.z
Symbol symbols-in func man opt man .h
-versions
HEADER
;
foreach my $sym (sort {$a cmp $b} keys %keys) {
if($sym =~ /^(?:CURLOPT|CURLINFO|curl|curlx)_\w/) {
my $s = exists($syminver{$sym})? $syminver{$sym}: " ";
my $f = exists($funcman{$sym})? $funcman{$sym}: " ";
my $o = exists($optman{$sym})? $optman{$sym}: " ";
my $h = exists($hdr{$sym})? $hdr{$sym}: " ";
my $r = " ";
# There are deprecated symbols in symbols-in-versions that are aliases
# and thus not listed anywhere else. Ignore them.
"$f$o$h" =~ /[X ]{3}/ && next;
# Check for inconsistencies between deprecations from the different sources.
foreach my $k ($s, $f, $o, $h) {
$r = $r eq " "? $k: $r;
if($k ne " " && $r ne $k) {
if($r eq "?") {
$r = $k ne "X"? $k: "!";
}
elsif($r eq "X" || $k ne "?") {
$r = "!";
}
}
}
if($r eq "!") {
print $leader;
$leader = "";
printf("%-38s %-11s %-9s %-9s %s\n", $sym, $s, $f, $o, $h);
$errcode++;
}
}
}
exit $errcode;