From fbe1dbf48bc0573935e410013da86bda03426af4 Mon Sep 17 00:00:00 2001
From: Eric Wong <normalperson@yhbt.net>
Date: Sun, 25 Aug 2013 00:22:33 +0000
Subject: move dtas-graph to a perl/ directory

I haven't figured out what to do with this, yet, since I have yet
to find and ASCII-art capable grapher in Ruby.  This was intended
to become dtas-ps, but maybe that'll be something else...
---
 bin/dtas-graph | 129 ---------------------------------------------------------
 1 file changed, 129 deletions(-)
 delete mode 100755 bin/dtas-graph

(limited to 'bin/dtas-graph')

diff --git a/bin/dtas-graph b/bin/dtas-graph
deleted file mode 100755
index a668d47..0000000
--- a/bin/dtas-graph
+++ /dev/null
@@ -1,129 +0,0 @@
-#!/usr/bin/perl -w
-# Copyright (C) 2013, Eric Wong <normalperson@yhbt.net>
-# License: GPLv3 or later (https://www.gnu.org/licenses/gpl-3.0.txt)
-use strict;
-use Graph::Easy; # for ASCII-art graphs
-$^O =~ /linux/ or print STDERR "$0 probably only works on Linux...\n";
-scalar @ARGV or die "Usage: $0 PID [PID ...]";
-our $procfs = $ENV{PROCFS} || "/proc";
-my $cull_self_pipe = 1;
-
-# returns a list of PIDs which are children of the given PID
-sub children_of {
-	my ($ppid) = @_;
-	my %rv = map {
-		s/\A\s*//g;
-		s/\s*\z//g;
-		my ($pid, $cmd) = split(/\s+/, $_, 2);
-		$pid => $cmd;
-	} `ps h -o pid,cmd --ppid=$ppid`;
-	\%rv;
-}
-
-# pid => [ child pids ]
-my %pids;
-
-# pipe_ino => { r => [ [pid, fd], [pid, fd] ], w => [ [pid, fd], ... ] }
-my %pipes;
-
-# pid => argv
-my %cmds;
-
-my $pipe_nr = 0;
-# pipe_id -> pipe_ino (we use short pipe IDs to save space on small terms)
-my %graphed;
-
-my @to_scan = (@ARGV);
-
-sub cmd_of {
-	my ($pid) = @_;
-	my $cmd = `ps h -o cmd $pid`;
-	chomp $cmd;
-	$cmd;
-}
-
-while (my $pid = shift @to_scan) {
-	my $children = children_of($pid);
-	my @child_pids = keys %$children;
-	push @to_scan, @child_pids;
-	$pids{$pid} = \@child_pids;
-	foreach my $child (keys @child_pids) {
-		$cmds{$child} = $children->{$child};
-	}
-}
-
-# build up a hash of pipes and their connectivity to processes:
-#
-foreach my $pid (keys %pids) {
-	my @out = `lsof -p $pid`;
-	# output is like this:
-	# play    12739   ew    0r  FIFO    0,7      0t0 36924019 pipe
-	foreach my $l (@out) {
-		my @l = split(/\s+/, $l);
-		$l[4] eq "FIFO" or next;
-
-		my $fd = $l[3];
-		my $pipe_ino = $l[7];
-		my $info = $pipes{$pipe_ino} ||= { r => [], w => [] };
-		if ($fd =~ s/r\z//) {
-			push @{$info->{r}}, [ $pid, $fd ];
-		} elsif ($fd =~ s/w\z//) {
-			push @{$info->{w}}, [ $pid, $fd ];
-		}
-
-	}
-}
-
-my $graph = Graph::Easy->new();
-foreach my $pid (keys %pids) {
-	$graph->add_node($pid);
-}
-
-foreach my $pipe_ino (keys %pipes) {
-	my $info = $pipes{$pipe_ino};
-	my %pairs;
-	my $pipe_node;
-
-	foreach my $rw (qw(r w)) {
-		foreach my $pidfd (@{$info->{$rw}}) {
-			my ($pid, $fd) = @$pidfd;
-			my $pair = $pairs{$pid} ||= {};
-			my $fds = $pair->{$rw} ||= [];
-			push @$fds, $fd;
-		}
-	}
-	# use Data::Dumper;
-	# print Dumper(\%pairs);
-	my $nr_pids = scalar keys %pairs;
-
-	foreach my $pid (keys %pairs) {
-		my $pair = $pairs{$pid};
-		my $r = $pair->{r} || [];
-		my $w = $pair->{w} || [];
-		next if $cull_self_pipe && $nr_pids == 1 && @$r && @$w;
-
-		unless ($pipe_node) {
-			my $pipe_id = $pipe_nr++;
-			$graphed{$pipe_id} = $pipe_ino;
-			$pipe_node = "|$pipe_id";
-			$graph->add_node($pipe_node);
-		}
-
-		$graph->add_edge($pipe_node, $pid, join(',', @$r)) if @$r;
-		$graph->add_edge($pid, $pipe_node, join(',', @$w)) if @$w;
-	}
-}
-
-print "   PID COMMAND\n";
-foreach my $pid (sort { $a <=> $b } keys %pids) {
-	printf "% 6d", $pid;
-	print " ", $cmds{$pid} || cmd_of($pid), "\n";
-}
-
-print "\nPIPEID PIPE_INO\n";
-foreach my $pipe_id (sort { $a <=> $b } keys %graphed) {
-	printf "% 6s", "|$pipe_id";
-	print " ", $graphed{$pipe_id}, "\n";
-}
-
-print $graph->as_ascii;
-- 
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