scripts/use2dot

   1 #!/bin/sh
   2 # aside from this initial boilerplate, this is actually -*- scheme -*- code
   3 main='(module-ref (resolve-module '\''(scripts use2dot)) '\'main')'
   4 exec ${GUILE-guile} -l $0 -c "(apply $main (cdr (command-line)))" "$@"
   5 !#
   6 ;;; use2dot --- Display module dependencies as a DOT specification
   7
   8 ;;      Copyright (C) 2001 Free Software Foundation, Inc.
   9 ;;
  10 ;; This program is free software; you can redistribute it and/or
  11 ;; modify it under the terms of the GNU General Public License as
  12 ;; published by the Free Software Foundation; either version 2, or
  13 ;; (at your option) any later version.
  14 ;;
  15 ;; This program is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18 ;; General Public License for more details.
  19 ;;
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with this software; see the file COPYING.  If not, write to
  22 ;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  23 ;; Boston, MA 02111-1307 USA
  24
  25 ;;; Author: Thien-Thi Nguyen
  26
  27 ;;; Commentary:
  28
  29 ;; Usage: use2dot [OPTIONS] [FILE ...]
  30 ;; Display to stdout a DOT specification that describes module dependencies
  31 ;; in FILEs.
  32 ;;
  33 ;; A top-level `use-modules' form or a `:use-module' `define-module'-component
  34 ;; results in a "solid" style edge.
  35 ;;
  36 ;; An `:autoload' `define-module'-component results in a "dotted" style edge
  37 ;; with label "N" indicating that N names are responsible for triggering the
  38 ;; autoload.  [The "N" label is not implemented.]
  39 ;;
  40 ;; A top-level `load' or `primitive-load' form results in a a "bold" style
  41 ;; edge to a node named with either the file name if the `load' argument is a
  42 ;; string, or "[computed in FILE]" otherwise.
  43 ;;
  44 ;; Options:
  45 ;;  -m, --default-module MOD -- Set MOD as the default module (for top-level
  46 ;;                              `use-modules' forms that do not follow some
  47 ;;                              `define-module' form in a file).  MOD should be
  48 ;;                              be a list or `#f', in which case such top-level
  49 ;;                              `use-modules' forms are effectively ignored.
  50 ;;                              Default value: `(guile-user)'.
  51
  52 ;;; Code:
  53
  54 (define-module (scripts use2dot)
  55   :autoload (ice-9 getopt-long) (getopt-long)
  56   :use-module ((srfi srfi-13) :select (string-join))
  57   :use-module ((scripts frisk)
  58                :select (make-frisker edge-type edge-up edge-down))
  59   :export (use2dot))
  60
  61 (define *default-module* '(guile-user))
  62
  63 (define (q s)                           ; quote
  64   (format #f "~S" s))
  65
  66 (define (vv pairs)                      ; => ("var=val" ...)
  67   (map (lambda (pair)
  68          (format #f "~A=~A" (car pair) (cdr pair)))
  69        pairs))
  70
  71 (define (>>header)
  72   (format #t "digraph use2dot {\n")
  73   (for-each (lambda (s) (format #t "  ~A;\n" s))
  74             (vv `((label . ,(q "Guile Module Dependencies"))
  75                   ;;(rankdir . LR)
  76                   ;;(size . ,(q "7.5,10"))
  77                   (ratio . fill)
  78                   ;;(nodesep . ,(q "0.05"))
  79                   ))))
  80
  81 (define (>>body edges)
  82   (for-each
  83    (lambda (edge)
  84      (format #t "  \"~A\" -> \"~A\"" (edge-down edge) (edge-up edge))
  85      (cond ((case (edge-type edge)
  86               ((autoload) '((style . dotted) (fontsize . 5)))
  87               ((computed) '((style . bold)))
  88               (else #f))
  89             => (lambda (etc)
  90                  (format #t " [~A]" (string-join (vv etc) ",")))))
  91      (format #t ";\n"))
  92    edges))
  93
  94 (define (>>footer)
  95   (format #t "}"))
  96
  97 (define (>> edges)
  98   (>>header)
  99   (>>body edges)
 100   (>>footer))
 101
 102 (define (use2dot . args)
 103   (let* ((parsed-args (getopt-long (cons "use2dot" args)    ;;; kludge
 104                                    '((default-module
 105                                        (single-char #\m) (value #t)))))
 106          (=m (option-ref parsed-args 'default-module *default-module*))
 107          (scan (make-frisker `(default-module . ,=m)))
 108          (files (option-ref parsed-args '() '())))
 109     (>> (reverse ((scan files) 'edges)))))
 110
 111 (define main use2dot)
 112
 113 ;;; use2dot ends here