xcat-core/xCAT-SoftLayer/xpod2man

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2014-03-02 23:05:09 +00:00
#!/usr/bin/perl
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
# First builds the xCAT summary man page from Synopsis of each man page.
# Then converts all of the pod man pages into html (including links to each other)
# We assume that this script is run in the xCAT-vlan-2.0 dir, so everything is
# done relative to that.
use strict;
#use lib '.';
use Pod::Man;
use Pod::Html;
my $poddir = 'pods';
my $mandir = 'share/man';
my $htmldir = 'share/doc';
my $cachedir = '/tmp';
my @pods = getPodList($poddir);
#foreach (@pods) { print "$_\n"; } exit;
# Build the cmd overview page.
#writesummarypage("$poddir/man1/xcat.1.pod", @pods);
# Build the man page for each pod.
#mkdir($mandir) or die "Error: could not create $mandir.\n";
print "Converting PODs to man pages...\n";
foreach my $podfile (@pods) {
my $manfile = $podfile;
$manfile =~ s/^$poddir/$mandir/; # change the beginning of the path
$manfile =~ s/\.pod$//; # change the ending
my $mdir = $manfile;
$mdir =~ s|/[^/]*$||; # get rid of the basename part
if (system("mkdir -p $mdir")) { die "Error: could not create $mdir.\n"; }
my ($section) = $podfile =~ /\.(\d+)\.pod$/;
convertpod2man($podfile, $manfile, $section);
}
my @dummyPods = createDummyPods($poddir, \@pods);
# Build the html page for each pod.
#mkdir($htmldir) or die "Error: could not create $htmldir.\n";
print "Converting PODs to HTML pages...\n";
# have to clear the cache, because old entries can cause a problem
unlink("$cachedir/pod2htmd.tmp", "$cachedir/pod2htmi.tmp");
foreach my $podfile (@pods) {
my $htmlfile = $podfile;
$htmlfile =~ s/^$poddir/$htmldir/; # change the beginning of the path
$htmlfile =~ s/\.pod$/\.html/; # change the ending
my $hdir = $htmlfile;
$hdir =~ s|/[^/]*$||; # get rid of the basename part
if (system("mkdir -p $hdir")) { die "Error: could not create $hdir.\n"; }
#print "$podfile, $htmlfile, $poddir, $htmldir\n";
convertpod2html($podfile, $htmlfile, $poddir, $htmldir);
}
# Remove the dummy pods
unlink @dummyPods;
rmdir "$poddir/man7";
exit;
# To enable linking between the cmd man pages and the db man pages, need to:
# grep thru the cmd pods searching for references (L<>) to any section 5 man page
# if that pod does not exist, create an empty one that will satisfy pod2html
# keep track of all dummy pods created, so they can be removed later
sub createDummyPods {
my ($poddir, $pods) = @_;
my $cmd = "grep -r -E 'L<.+\\([57]\\)\\|.+\\.[57]>' " . $poddir;
#print "Running cmd: ", $cmd, "\n";
my @lines = `$cmd`;
if ($?) { print "Error running: $cmd\n"; print join('', @lines); }
#my @lines;
#system($cmd);
my @dummyPods;
foreach my $l (@lines) {
#print "$l\n";
my @matches = $l =~ /L<([^\(]+)\(([57])\)\|\1\.[57]>/g; # get all the matches in the line
# The above line should create the array with every other entry being the man page name
# and every other entry is the section # (5 or 7)
my $cmd;
while ($cmd=shift @matches) {
#foreach my $m (@matches) {
my $section = shift @matches;
my $filename = "$poddir/man$section/$cmd.$section.pod";
#print "$filename\n";
if (!(grep /^$filename$/, @$pods) && !(grep /^$filename$/, @dummyPods)) { push @dummyPods, $filename; }
}
}
# Create these empty files
print "Creating empty linked-to files: ", join(', ', @dummyPods), "\n";
mkdir "$poddir/man7";
foreach my $d (@dummyPods) {
if (!open(TMP, ">>$d")) { warn "Could not create dummy pod file $d ($!)\n"; }
else { close TMP; }
}
return @dummyPods;
}
# Recursively get the list of pod man page files.
sub getPodList {
my $poddir = shift;
my @files;
# 1st get toplevel dir listing
opendir(DIR, $poddir) or die "Error: could not read $poddir.\n";
my @topdir = grep !/^\./, readdir(DIR); # /
close(DIR);
# Now go thru each subdir (these are man1, man3, etc.)
foreach my $mandir (@topdir) {
opendir(DIR, "$poddir/$mandir") or die "Error: could not read $poddir/$mandir.\n";
my @dir = grep !/^\./, readdir(DIR); # /
close(DIR);
foreach my $file (@dir) {
push @files, "$poddir/$mandir/$file";
}
}
return sort @files;
}
# Create the xcat man page that gives a summary description of each xcat cmd.
# Not used.
sub writesummarypage {
my $file = shift; # relative path file name of the man page
# the rest of @_ contains the pod files that describe each cmd
open(FILE, ">$file") or die "Error: could not open $file for writing.\n";
print FILE <<'EOS1';
=head1 NAME
B<xcat> - extreme Cluster Administration Tool.
=head1 DESCRIPTION
Extreme Cluster Administration Toolkit (xCAT). xCAT is a scalable distributed computing management
and provisioning tool that provides a unified interface for hardware control, discovery, and
OS diskful/diskfree deployment.
=head1 XCAT DATABASE
All of the cluster configuration information is in the xCAT database. See L<xcatdb(5)|xcatdb.5> for
descriptions of every table in the database.
=head1 XCAT COMMANDS
What follows is a short description of each xCAT command. To get more information about a particular
command, see its man page. Note that the commands are listed in alphabetical order B<within each section>,
i.e. all the commands in section 1, then the commands in section 3, etc.
=over 12
EOS1
# extract the summary for each cmd from its man page
foreach my $manpage (@_) {
my ($sectionnum) = $manpage =~ /\.(\d+)\.pod$/;
# Suck in the whole file, then we will parse it.
open(MANPAGE, "$manpage") or die "Error: could not open $manpage for reading.\n";
my @contents = <MANPAGE>;
my $wholemanpage = join('', @contents);
close(MANPAGE);
# This regex matches: optional space, =head1, space, title, space, cmd, space, description, newline
my ($cmd, $description) = $wholemanpage =~ /^\s*=head1\s+\S+\s+(\S+)\s+(.+?)\n/si;
if (!defined($cmd)) { print "Warning: $manpage is not in a recognized structure. It will be ignored.\n"; next; }
if (!defined($description)) { print "Warning: $manpage does not have a description for $cmd. It will be ignored.\n"; next; }
$cmd =~ s/^.<(.+)>$/$1/; # if the cmd name has pod formatting around it, strip it off
$description =~ s/^-\s*//; # if the description has a leading hypen, strip it off
print FILE "\n=item L<$cmd($sectionnum)|$cmd.$sectionnum>\n\n".$description."\n";
}
# Artificially add the xcattest cmd, because the xCAT-test rpm will add this
print FILE "\n=item L<xcattest(1)|xcattest.1>\n\nRun automated xCAT test cases.\n";
print FILE <<"EOS3";
=back
EOS3
close FILE;
}
# Create the html page for one pod.
sub convertpod2html {
my ($podfile, $htmlfile, $poddir, $htmldir) = @_;
#TODO: use --css=<stylesheet> and --title=<pagetitle> to make the pages look better
pod2html($podfile,
"--outfile=$htmlfile",
"--podpath=man1",
"--podroot=$poddir",
"--htmldir=$htmldir",
"--recurse",
"--cachedir=$cachedir",
);
}
# Create the man page for one pod.
sub convertpod2man {
my ($podfile, $manfile, $section) = @_;
my $parser = Pod::Man->new(section => $section);
$parser->parse_from_file($podfile, $manfile);
}