vtysh2templates

#!/usr/bin/perl

# create templates from output of "vtysh -c list"

sub mk_node_def {
    local ($p, $help) = @_;

    if ( ! -d $p ) {
	mkdir $p
	    or die "Can\'t create $p: $!";
    }
    if ( ! -r "$p/node.def" ) {
	open(NODE_DEF, ">", "$p/node.def")
	    or die "Can\'t create $p/node.def: $!";
	print NODE_DEF "help: $help\n";
	close NODE_DEF;
    }
}

sub add_run {				# add run field to given node.def
    local ($node_def) = @_;
    local $has_run=0; 

    if ( -r $node_def ) {
	open(IN, "<", $node_def) 
	    or die "Can\'t read $node_def: $!";
	while (<IN>) {
	    $has_run=1 if (/^run:/);
	}
	close IN;
    }
    if ( ! $has_run ) {
	open(NODE_DEF, ">>", "$p/node.def")
	    or die "Can\'t append run command to $p/node.def: $!";
	print NODE_DEF 'run: vtysh -c "$*"', "\n";
	close NODE_DEF;
    }
}

sub recursive_process {			# path, help, arg ...
    local $p = shift;
    local $help = shift;

    while (@_ > 0) {
	local $a = shift;
	if ( $a =~ /^\(/ ) {
	    $a =~ s/^\(//;
	    $a =~ s/\)$//;
	    for $aa ( split /\|/, $a ) {
		local @args;
		push @args, $aa, @_;
		recursive_process($p,$help,@args);
	    }
	    return;
	} else {
	    if ( $a eq "detail" ) {
		$help =~ s/ / detailed /;
	    } elsif ( $a =~ /(bgp|ospf6|ospf|ripng|rip|isis|prefix-list)/ ) {
		local $protocol = uc $1;
		$help =~ s/PROTOCOL/$protocol/;
	    }
	    if ( $a =~ /[A-Z]/ ) {
		$p .= "/node.tag";
		if ( $help =~ /for given/ ) {
		    $help .= ", ";
		} else {
		    $help .= " for given ";
		}
		if ( $a =~ /(A.B.C.D\/M|X:.*\/M)/ ) {
		    $help .= "network";
		} elsif ( $a =~ /(A.B.C.D|X:.*)/ ) {
		    $help .= "address";
		} elsif ( $a =~ /LINE/ ) {
		    $help .= "LINE";
		} elsif  ( $a =~ /WORD/ ) {
		    $help .= "WORD";
		} elsif  ( $a =~ /AA:NN/ ) {
		    $help .= "extended attributes";
		} else {
		    $help .= $a;
		}
	    } elsif ( $a =~ /<1-65535>/ ) {
		$p .= "/node.tag";
		$help .= "number";
	    } elsif ( $a eq '*' ) {
		$p .= "/node.tag";
		$help .= "wild card";
	    } else {
		$p .= "/$a";
	    }
	    mk_node_def($p, $help);
	}
    }
    add_run("$p/node.def");
}

while (<>) {
    local $help;
    chop;
    s/^\s+//;
    if ( s/^(show)\s+// ) {
	$help = "Show PROTOCOL information";
    } elsif ( s/^(debug)\s+// ) {
	$help = "Enable PROTOCOL debugging";
    } elsif ( s/^(undebug|no debug)\s+// ) {
	$help = "Disable PROTOCOL debugging";
    } elsif ( s/^(clear)\s+// ) {
	$help = "Clear PROTOCOL statistics or status";
    } else {
	s/(\w+)\s+//;
	$help = $1;
    }
    recursive_process("templates/$1", $help, split);
}

exit 0;