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curl/docs/examples/version-check.pl
Daniel Stenberg 0a2edfc348 version-check.pl: display version number for symbols
This script is the start of a helper tool that scans a source code and
outputs the most recent libcurl version it finds symbols for. Meaning
that if there's no conditions in the code, that's the earliest libcurl
version the scanned code requires.

It is not added to the Makefile.am yet as it is still a bit crude, but
I'm committing it to keep it and allow us to work on it.
2010-11-12 23:29:29 +01:00

70 lines
1.1 KiB
Raku
Executable File

#!/usr/bin/env perl
open(S, "<../libcurl/symbols-in-versions") || die;
my %doc;
my %rem;
while(<S>) {
if(/(^CURL[^ \n]*) *(.*)/) {
my ($sym, $rest)=($1, $2);
my @a=split(/ +/, $rest);
$doc{$sym}=$a[0]; # when it was introduced
if($a[2]) {
# this symbol is documented to have been present the last time
# in this release
$rem{$sym}=$a[2];
}
}
}
close(S);
sub age {
my ($ver)=@_;
my @s=split(/\./, $ver);
return $s[0]*10000+$s[1]*100+$s[2];
}
my %used;
open(C, "<$ARGV[0]") || die;
while(<C>) {
if(/\W(CURL[_A-Z0-9v]+)\W/) {
#print "$1\n";
$used{$1}++;
}
}
close(C);
sub sortversions {
my $r = age($doc{$a}) <=> age($doc{$b});
if(!$r) {
$r = $a cmp $b;
}
return $r;
}
my @recent = reverse sort sortversions keys %used;
# the most recent symbol
my $newsym = $recent[0];
# the most recent version
my $newver = $doc{$newsym};
print "The scanned source uses these symbols introduced in $newver:\n";
for my $w (@recent) {
if($doc{$w} eq $newver) {
printf " $w\n";
next;
}
last;
}