version-check.pl (2725B)
1 #!/usr/bin/env perl 2 #*************************************************************************** 3 # _ _ ____ _ 4 # Project ___| | | | _ \| | 5 # / __| | | | |_) | | 6 # | (__| |_| | _ <| |___ 7 # \___|\___/|_| \_\_____| 8 # 9 # Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 10 # 11 # This software is licensed as described in the file COPYING, which 12 # you should have received as part of this distribution. The terms 13 # are also available at https://curl.se/docs/copyright.html. 14 # 15 # You may opt to use, copy, modify, merge, publish, distribute and/or sell 16 # copies of the Software, and permit persons to whom the Software is 17 # furnished to do so, under the terms of the COPYING file. 18 # 19 # This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 20 # KIND, either express or implied. 21 # 22 # SPDX-License-Identifier: curl 23 # 24 ########################################################################### 25 26 # This script accepts a source file as input on the command line. 27 # 28 # It first loads the 'symbols-in-versions' document and stores a lookup 29 # table for all known symbols for which version they were introduced. 30 # 31 # It then scans the given source file to dig up all symbols starting with CURL. 32 # Finally, it sorts the internal list of found symbols (using the version 33 # number as sort key) and then it outputs the most recent version number and 34 # the symbols from that version that are used. 35 # 36 # Usage: 37 # 38 # version-check.pl [source file] 39 # 40 41 open(S, "<../libcurl/symbols-in-versions") || die; 42 43 my %doc; 44 my %rem; 45 while(<S>) { 46 if(/(^CURL[^ \n]*) *(.*)/) { 47 my ($sym, $rest)=($1, $2); 48 my @a=split(/ +/, $rest); 49 50 $doc{$sym}=$a[0]; # when it was introduced 51 52 if($a[2]) { 53 # this symbol is documented to have been present the last time 54 # in this release 55 $rem{$sym}=$a[2]; 56 } 57 } 58 59 } 60 61 close(S); 62 63 sub age { 64 my ($ver)=@_; 65 66 my @s=split(/\./, $ver); 67 return $s[0]*10000+$s[1]*100+$s[2]; 68 } 69 70 my %used; 71 open(C, "<$ARGV[0]") || die; 72 73 while(<C>) { 74 if(/\W(CURL[_A-Z0-9v]+)\W/) { 75 #print "$1\n"; 76 $used{$1}++; 77 } 78 } 79 80 close(C); 81 82 sub sortversions { 83 my $r = age($doc{$a}) <=> age($doc{$b}); 84 if(!$r) { 85 $r = $a cmp $b; 86 } 87 return $r; 88 } 89 90 my @recent = reverse sort sortversions keys %used; 91 92 # the most recent symbol 93 my $newsym = $recent[0]; 94 # the most recent version 95 my $newver = $doc{$newsym}; 96 97 print "The scanned source uses these symbols introduced in $newver:\n"; 98 99 for my $w (@recent) { 100 if($doc{$w} eq $newver) { 101 printf " $w\n"; 102 next; 103 } 104 last; 105 }