Update MaxmindDB to current git.

vendor/MaxmindDB/dev-bin/clang-format-all.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+format="clang-format -i -style=file"
+
+for dir in bin include src t; do
+    c_files=`find $dir -maxdepth 1 -name '*.c'`
+    if [ "$c_files" != "" ]; then
+        $format $dir/*.c;
+    fi
+
+    h_files=`find $dir -maxdepth 1 -name '*.h'`
+    if [ "$h_files" != "" ]; then
+        $format $dir/*.h;
+    fi
+done

vendor/MaxmindDB/dev-bin/make-man-pages.pl

@@ -7,53 +7,75 @@ use autodie qw( :all );
 use FindBin qw( $Bin );
 
 use File::Path qw( mkpath );
-use File::Slurp qw( edit_file read_file write_file );
-use File::Temp qw( tempdir );
+use File::Slurp qw( edit_file read_file );
 use File::Which qw( which );
 
 sub main {
     my $target = shift || "$Bin/..";
 
-    my $pandoc = which('pandoc')
-        or die
-        "\n  You must install pandoc in order to generate the man pages.\n\n";
+    my @translators = qw ( lowdown pandoc );
+    my $translator;
+    foreach my $p (@translators) {
+        if ( defined which($p) ) {
+            $translator = $p;
+            last;
+        }
+    }
+    unless ( defined $translator ) {
+        die "\n  You must install one of "
+            . join( ', ', @translators )
+            . " in order to generate the man pages.\n\n";
+    }
 
-    _make_man( $target, 'libmaxminddb', 3 );
+    _make_man( $translator, $target, 'libmaxminddb', 3 );
     _make_lib_man_links($target);
 
-    _make_man( $target, 'mmdblookup', 1 );
+    _make_man( $translator, $target, 'mmdblookup', 1 );
 }
 
 sub _make_man {
-    my $target  = shift;
-    my $name    = shift;
-    my $section = shift;
+    my $translator = shift;
+    my $target     = shift;
+    my $name       = shift;
+    my $section    = shift;
 
+    my $input   = "$Bin/../doc/$name.md";
     my $man_dir = "$target/man/man$section";
     mkpath($man_dir);
+    my $output = "$man_dir/$name.$section";
 
-    my $tempdir = tempdir( CLEANUP => 1 );
-
-    my $markdown = <<"EOF";
-% $name($section)
-
-EOF
-    $markdown .= read_file("$Bin/../doc/$name.md");
-
-    my $tempfile = "$tempdir/$name.$section.md";
-    write_file( $tempfile, $markdown );
-
-    my $man_file = "$man_dir/$name.$section";
-    system( qw( pandoc -s -t man ), $tempfile, '-o', $man_file );
-
-    _fix_indentation($man_file);
+    if ( $translator eq 'pandoc' ) {
+        system(
+            'pandoc',
+            '-s',
+            '-f', 'markdown_mmd+backtick_code_blocks',
+            '-t', 'man',
+            '-M', "title:$name",
+            '-M', "section:$section",
+            $input,
+            '-o', $output,
+        );
+        _pandoc_postprocess($output);
+    }
+    elsif ( $translator eq 'lowdown' ) {
+        system(
+            'lowdown',
+            '-s',
+            '--out-no-smarty',
+            '-Tman',
+            '-M', "title:$name",
+            '-M', "section:$section",
+            $input,
+            '-o', $output,
+        );
+    }
 }
 
 sub _make_lib_man_links {
     my $target = shift;
 
     my $header = read_file("$Bin/../include/maxminddb.h");
-    for my $proto ( $header =~ /^ *extern.+?(\w+)\(/gsm ) {
+    for my $proto ( $header =~ /^ *extern.+?(MMDB_\w+)\(/gsm ) {
         open my $fh, '>', "$target/man/man3/$proto.3";
         print {$fh} ".so man3/libmaxminddb.3\n";
         close $fh;
@@ -62,12 +84,13 @@ sub _make_lib_man_links {
 
 # AFAICT there's no way to control the indentation depth for code blocks with
 # Pandoc.
-sub _fix_indentation {
+sub _pandoc_postprocess {
     my $file = shift;
 
     edit_file(
         sub {
             s/^\.IP\n\.nf/.IP "" 4\n.nf/gm;
+            s/(Automatically generated by Pandoc)(.+)$/$1/m;
         },
         $file
     );

vendor/MaxmindDB/dev-bin/ppa-release.sh

@@ -4,7 +4,7 @@ set -e
 set -x
 set -u
 
-DISTS=( artful zesty xenial trusty precise )
+DISTS=( groovy focal bionic xenial trusty )
 
 VERSION=$(perl -MFile::Slurp::Tiny=read_file -MDateTime <<EOF
 use v5.16;

vendor/MaxmindDB/dev-bin/uncrustify-all.sh

@@ -1,19 +0,0 @@
-#!/bin/sh
-
-uncrustify="uncrustify -c .uncrustify.cfg --replace --no-backup"
-
-# We indent each thing twice because uncrustify is not idempotent - in some
-# cases it will flip-flop between two indentation styles.
-for dir in bin include src t; do
-    c_files=`find $dir -maxdepth 1 -name '*.c'`
-    if [ "$c_files" != "" ]; then
-        $uncrustify $dir/*.c;
-        $uncrustify $dir/*.c;
-    fi
-    
-    h_files=`find $dir -maxdepth 1 -name '*.h'`
-    if [ "$h_files" != "" ]; then
-        $uncrustify $dir/*.h;
-        $uncrustify $dir/*.h;
-    fi
-done