to clean up your installed macports and remove cruft you need to uninstall them in the correct order – according to their dependencies.
A graphical visualisation might help doing so:
port-deps
Call
1$ ./port-deps2dot.rb | dot -Tpdf -o port-deps.pdf ; open port-deps.pdfwith the ruby script port-deps2dot.rb (github gist) as follows:
1#!/usr/bin/ruby -w
2
3# visualize macports dependencies.
4# pipe the result through graphviz, e.g.
5# $ ./port-deps2dot.rb | dot -Tpdf -o port-deps.pdf ; open port-deps.pdf
6
7def scan_deps
8 pat = /^([^:]+):(.+)$/
9 name = ''
10 deps = []
11 IO.popen('port info --name --pretty --depends installed') do |f|
12 f.each_line do |l|
13 case l
14 when /^--$/
15 yield name, deps
16 name = ''
17 deps = []
18 when /^([^:]+):(.+)$/
19 if 'name' == "#$1"
20 name = "#$2".strip
21 else
22 deps.concat("#$2".split(/\s*,\s*/))
23 end
24 else
25 raise "Fall-through for '#{l}'"
26 end
27 end
28 end
29end
30
31all = {}
32
33scan_deps do |name,deps|
34 d = all[name]
35 all[name] = d = [] if d.nil?
36 deps.collect! {|i| i.strip}
37 d.concat deps
38 d.sort!
39 d.uniq!
40end
41
42head = <<END_OF_STRING
43#!/usr/bin/dot -Tpdf -o port-deps.pdf
44/*
45 See http://www.graphviz.org/Documentation.php
46*/
47digraph "port deps" {
48 rankdir=LR;
49 label="port deps";
50 node [style=filled,fillcolor=lightblue,shape=ellipse];
51 top_level [shape=point];
52END_OF_STRING
53
54puts head
55
56all.keys.sort.each do |name|
57 deps = all[name]
58 if deps.count > 0
59 deps.each {|d| puts "\t\"#{name}\" -> \"#{d}\";" }
60 else
61 puts "\t\"#{name}\";"
62 end
63end
64
65foot = <<END_OF_STRING
66}
67END_OF_STRING
68
69puts foot