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Diffstat (limited to 'scripts/get_abi.pl')
| -rwxr-xr-x | scripts/get_abi.pl | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/scripts/get_abi.pl b/scripts/get_abi.pl new file mode 100755 index 000000000000..f7c9944a833c --- /dev/null +++ b/scripts/get_abi.pl @@ -0,0 +1,212 @@ +#!/usr/bin/perl + +use strict; +use Pod::Usage; +use Getopt::Long; +use File::Find; +use Fcntl ':mode'; + +my $help; +my $man; +my $debug; + +GetOptions( + "debug|d+" => \$debug, + 'help|?' => \$help, + man => \$man +) or pod2usage(2); + +pod2usage(1) if $help; +pod2usage(-exitstatus => 0, -verbose => 2) if $man; + +pod2usage(2) if (scalar @ARGV != 1); + +my ($prefix) = @ARGV; + +require Data::Dumper if ($debug); + +my %data; + +# +# Displays an error message, printing file name and line +# +sub parse_error($$$$) { + my ($file, $ln, $msg, $data) = @_; + + print STDERR "file $file#$ln: $msg at\n\t$data"; +} + +# +# Parse an ABI file, storing its contents at %data +# +sub parse_abi { + my $file = $File::Find::name; + + my $mode = (stat($file))[2]; + return if ($mode & S_IFDIR); + return if ($file =~ m,/README,); + + my $name = $file; + $name =~ s,.*/,,; + + my $type = $file; + $type =~ s,.*/(.*)/.*,$1,; + + my $what; + my $new_what; + my $tag; + my $ln; + + print STDERR "Opening $file\n" if ($debug > 1); + open IN, $file; + while(<IN>) { + $ln++; + if (m/^(\S+):\s*(.*)/i) { + my $new_tag = lc($1); + my $content = $2; + + if (!($new_tag =~ m/(what|date|kernelversion|contact|description|users)/)) { + if ($tag eq "description") { + $data{$what}->{$tag} .= "\n$content";; + $data{$what}->{$tag} =~ s/\n+$//; + next; + } else { + parse_error($file, $ln, "tag '$tag' is invalid", $_); + } + } + + if ($new_tag =~ m/what/) { + if ($tag =~ m/what/) { + $what .= ", " . $content; + } else { + $what = $content; + $new_what = 1; + } + $tag = $new_tag; + next; + } + + $tag = $new_tag; + + if ($new_what) { + $new_what = 0; + + $data{$what}->{type} = $type; + $data{$what}->{file} = $name; + print STDERR "\twhat: $what\n" if ($debug > 1); + } + + if (!$what) { + parse_error($file, $ln, "'What:' should come first:", $_); + next; + } + $data{$what}->{$tag} = $content; + next; + } + + # Silently ignore any headers before the database + next if (!$tag); + + if (m/^\s*(.*)/) { + $data{$what}->{$tag} .= "\n$1"; + $data{$what}->{$tag} =~ s/\n+$//; + next; + } + + # Everything else is error + parse_error($file, $ln, "Unexpected line:", $_); + } + close IN; +} + +# Outputs the output on ReST format +sub output_rest { + foreach my $what (sort keys %data) { + my $type = $data{$what}->{type}; + my $file = $data{$what}->{file}; + + my $w = $what; + $w =~ s/([\(\)\_\-\*\=\^\~\\])/\\$1/g; + + print "$w\n\n"; + print "- defined on file $file (type: $type)\n\n::\n\n"; + + my $desc = $data{$what}->{description}; + $desc =~ s/^\s+//; + + # Remove title markups from the description, as they won't work + $desc =~ s/\n[\-\*\=\^\~]+\n/\n/g; + + # put everything inside a code block + $desc =~ s/\n/\n /g; + + + if (!($desc =~ /^\s*$/)) { + print " $desc\n\n"; + } else { + print " DESCRIPTION MISSING\n\n"; + } + } +} + +# +# Parses all ABI files located at $prefix dir +# +find({wanted =>\&parse_abi, no_chdir => 1}, $prefix); + +print STDERR Data::Dumper->Dump([\%data], [qw(*data)]) if ($debug); + +# +# Outputs an ReST file with the ABI contents +# +output_rest + + +__END__ + +=head1 NAME + +abi_book.pl - parse the Linux ABI files and produce a ReST book. + +=head1 SYNOPSIS + +B<abi_book.pl> [--debug] <ABI_DIR>] + +=head1 OPTIONS + +=over 8 + +=item B<--debug> + +Put the script in verbose mode, useful for debugging. Can be called multiple +times, to increase verbosity. + +=item B<--help> + +Prints a brief help message and exits. + +=item B<--man> + +Prints the manual page and exits. + +=back + +=head1 DESCRIPTION + +Parse the Linux ABI files from ABI DIR (usually located at Documentation/ABI) +and produce a ReST book containing the Linux ABI. + +=head1 BUGS + +Report bugs to Mauro Carvalho Chehab <mchehab@s-opensource.com> + +=head1 COPYRIGHT + +Copyright (c) 2016 by Mauro Carvalho Chehab <mchehab@s-opensource.com>. + +License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl.html>. + +This is free software: you are free to change and redistribute it. +There is NO WARRANTY, to the extent permitted by law. + +=cut |