SDL/build-scripts/fnsince.pl

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Perl
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#!/usr/bin/perl -w
use warnings;
use strict;
use File::Basename;
use Cwd qw(abs_path);
my $wikipath = undef;
foreach (@ARGV) {
$wikipath = abs_path($_), next if not defined $wikipath;
}
chdir(dirname(__FILE__));
chdir('..');
my @unsorted_releases = ();
open(PIPEFH, '-|', 'git tag -l') or die "Failed to read git release tags: $!\n";
while (<PIPEFH>) {
chomp;
if (/\Arelease\-(.*?)\Z/) {
# After 2.24.x, ignore anything that isn't a x.y.0 release.
# We moved to bugfix-only point releases there, so make sure new APIs
# are assigned to the next minor version and ignore the patch versions.
my $ver = $1;
my @versplit = split /\./, $ver;
next if (scalar(@versplit) > 2) && (($versplit[0] > 2) || (($versplit[0] == 2) && ($versplit[1] >= 24))) && ($versplit[2] != 0);
# Consider this release version.
push @unsorted_releases, $ver;
}
}
close(PIPEFH);
#print("\n\nUNSORTED\n");
#foreach (@unsorted_releases) {
# print "$_\n";
#}
my @releases = sort {
my @asplit = split /\./, $a;
my @bsplit = split /\./, $b;
my $rc;
for (my $i = 0; $i < scalar(@asplit); $i++) {
return 1 if (scalar(@bsplit) <= $i); # a is "2.0.1" and b is "2.0", or whatever.
my $aseg = $asplit[$i];
my $bseg = $bsplit[$i];
$rc = int($aseg) <=> int($bseg);
return $rc if ($rc != 0); # found the difference.
}
return 0; # still here? They matched completely?!
} @unsorted_releases;
# this happens to work for how SDL versions things at the moment.
my $current_release = $releases[-1];
my $next_release;
if ($current_release eq '2.0.22') { # Hack for our jump from 2.0.22 to 2.24.0...
$next_release = '2.24.0';
} else {
my @current_release_segments = split /\./, $current_release;
@current_release_segments[1] = '' . ($current_release_segments[1] + 2);
$next_release = join('.', @current_release_segments);
}
#print("\n\nSORTED\n");
#foreach (@releases) {
# print "$_\n";
#}
#print("\nCURRENT RELEASE: $current_release\n");
#print("NEXT RELEASE: $next_release\n\n");
push @releases, 'HEAD';
my %funcs = ();
foreach my $release (@releases) {
#print("Checking $release...\n");
next if ($release eq '2.0.0') || ($release eq '2.0.1'); # no dynapi before 2.0.2
my $assigned_release = ($release eq '2.0.2') ? '2.0.0' : $release; # assume everything in 2.0.2--first with dynapi--was there since 2.0.0. We'll fix it up later.
my $tag = ($release eq 'HEAD') ? $release : "release-$release";
my $blobname = "$tag:src/dynapi/SDL_dynapi_overrides.h";
open(PIPEFH, '-|', "git show '$blobname'") or die "Failed to read git blob '$blobname': $!\n";
while (<PIPEFH>) {
chomp;
if (/\A\#define\s+(SDL_.*?)\s+SDL_.*?_REAL\Z/) {
my $fn = $1;
$funcs{$fn} = $assigned_release if not defined $funcs{$fn};
}
}
close(PIPEFH);
}
# Fixup the handful of functions that were added in 2.0.1 and 2.0.2 that we
# didn't have dynapi revision data about...
$funcs{'SDL_GetSystemRAM'} = '2.0.1';
$funcs{'SDL_GetBasePath'} = '2.0.1';
$funcs{'SDL_GetPrefPath'} = '2.0.1';
$funcs{'SDL_UpdateYUVTexture'} = '2.0.1';
$funcs{'SDL_GL_GetDrawableSize'} = '2.0.1';
$funcs{'SDL_Direct3D9GetAdapterIndex'} = '2.0.1';
$funcs{'SDL_RenderGetD3D9Device'} = '2.0.1';
$funcs{'SDL_RegisterApp'} = '2.0.2';
$funcs{'SDL_UnregisterApp'} = '2.0.2';
$funcs{'SDL_GetAssertionHandler'} = '2.0.2';
$funcs{'SDL_GetDefaultAssertionHandler'} = '2.0.2';
$funcs{'SDL_AtomicAdd'} = '2.0.2';
$funcs{'SDL_AtomicGet'} = '2.0.2';
$funcs{'SDL_AtomicGetPtr'} = '2.0.2';
$funcs{'SDL_AtomicSet'} = '2.0.2';
$funcs{'SDL_AtomicSetPtr'} = '2.0.2';
$funcs{'SDL_HasAVX'} = '2.0.2';
$funcs{'SDL_GameControllerAddMappingsFromRW'} = '2.0.2';
$funcs{'SDL_acos'} = '2.0.2';
$funcs{'SDL_asin'} = '2.0.2';
$funcs{'SDL_vsscanf'} = '2.0.2';
$funcs{'SDL_DetachThread'} = '2.0.2';
$funcs{'SDL_GL_ResetAttributes'} = '2.0.2';
$funcs{'SDL_DXGIGetOutputInfo'} = '2.0.2';
# these are incorrect in the dynapi header, because we forgot to add them
# until a later release, but are available in the older release.
$funcs{'SDL_WinRTGetFSPathUNICODE'} = '2.0.3';
$funcs{'SDL_WinRTGetFSPathUTF8'} = '2.0.3';
$funcs{'SDL_WinRTRunApp'} = '2.0.3';
if (not defined $wikipath) {
foreach my $release (@releases) {
foreach my $fn (sort keys %funcs) {
print("$fn: $funcs{$fn}\n") if $funcs{$fn} eq $release;
}
}
} else {
if (defined $wikipath) {
chdir($wikipath);
foreach my $fn (keys %funcs) {
my $revision = $funcs{$fn};
$revision = $next_release if $revision eq 'HEAD';
my $fname = "$fn.mediawiki";
if ( ! -f $fname ) {
#print STDERR "No such file: $fname\n";
next;
}
my @lines = ();
open(FH, '<', $fname) or die("Can't open $fname for read: $!\n");
my $added = 0;
while (<FH>) {
chomp;
if ((/\A\-\-\-\-/) && (!$added)) {
push @lines, "== Version ==";
push @lines, "";
push @lines, "This function is available since SDL $revision.";
push @lines, "";
$added = 1;
}
push @lines, $_;
next if not /\A\=\=\s+Version\s+\=\=/;
$added = 1;
push @lines, "";
push @lines, "This function is available since SDL $revision.";
push @lines, "";
while (<FH>) {
chomp;
next if not (/\A\=\=\s+/ || /\A\-\-\-\-/);
push @lines, $_;
last;
}
}
close(FH);
if (!$added) {
push @lines, "== Version ==";
push @lines, "";
push @lines, "This function is available since SDL $revision.";
push @lines, "";
}
open(FH, '>', $fname) or die("Can't open $fname for write: $!\n");
foreach (@lines) {
print FH "$_\n";
}
close(FH);
}
}
}