/js/lib/Socket.IO-node/support/expresso/deps/jscoverage/js/build/autoconf/make-makefile

  1#! /usr/bin/env perl
  2# ***** BEGIN LICENSE BLOCK *****
  3# Version: MPL 1.1/GPL 2.0/LGPL 2.1
  4#
  5# The contents of this file are subject to the Mozilla Public License Version
  6# 1.1 (the "License"); you may not use this file except in compliance with
  7# the License. You may obtain a copy of the License at
  8# http://www.mozilla.org/MPL/
  9#
 10# Software distributed under the License is distributed on an "AS IS" basis,
 11# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 12# for the specific language governing rights and limitations under the
 13# License.
 14#
 15# The Original Code is mozilla.org code.
 16#
 17# The Initial Developer of the Original Code is
 18# Netscape Communications Corporation.
 19# Portions created by the Initial Developer are Copyright (C) 1999
 20# the Initial Developer. All Rights Reserved.
 21#
 22# Contributor(s):
 23#
 24# Alternatively, the contents of this file may be used under the terms of
 25# either of the GNU General Public License Version 2 or later (the "GPL"),
 26# or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 27# in which case the provisions of the GPL or the LGPL are applicable instead
 28# of those above. If you wish to allow use of your version of this file only
 29# under the terms of either the GPL or the LGPL, and not to allow others to
 30# use your version of this file under the terms of the MPL, indicate your
 31# decision by deleting the provisions above and replace them with the notice
 32# and other provisions required by the GPL or the LGPL. If you do not delete
 33# the provisions above, a recipient may use your version of this file under
 34# the terms of any one of the MPL, the GPL or the LGPL.
 35#
 36# ***** END LICENSE BLOCK *****
 37
 38# make-makefiles - Quickly create Makefiles for subdirectories.
 39#      Also, creates any needed subdirectories.
 40#
 41# usage: make-makefiles [ -t <topsrcdir> -p <print_topsrcdir> -d <depth> ] [ <subdir> | <subdir>/Makefile ] ...
 42
 43# Send comments, improvements, bugs to Steve Lamm (slamm@netscape.com).
 44
 45#$debug = 1;
 46
 47# Determine various tree path variables
 48#
 49($topsrcdir, $ptopsrcdir, $depth, @makefiles) = parse_arguments(@ARGV);
 50
 51$object_fullpath = `pwd`;
 52chdir $depth;
 53$object_root = `pwd`;
 54chomp $object_fullpath;
 55chomp $object_root;
 56
 57# $source_subdir is the path from the object root to where
 58#    'make-makefile' was called. For example, if make-makefile was
 59#    called from "mozilla/gfx/src", then $source_subdir would be
 60#    "gfx/src/".
 61$source_subdir = "$object_fullpath/";
 62my $quoted_object_root = quotemeta($object_root);
 63$source_subdir =~ s|^$quoted_object_root/||;
 64
 65# Prefix makefiles with $source_subdir so that paths
 66# will be relative to the top of the object tree.
 67#
 68for $makefile (@makefiles) {
 69  $makefile = "$source_subdir$makefile";
 70}
 71
 72create_directories(@makefiles);
 73
 74# Find the path to the source directory based on how 'make-makefile'
 75#  was invoked. The path is either relative to the object directory
 76#  or an absolute path.
 77$given_srcdir = find_srcdir($topsrcdir, $depth);
 78$pgiven_srcdir = find_srcdir($ptopsrcdir, $depth);
 79
 80if ($debug) {
 81  warn "object_fullpath = $object_fullpath\n";
 82  warn "object_root     = $object_root\n";
 83  warn "source_subdir   = $source_subdir\n";
 84  warn "makefiles       = @makefiles\n";
 85  warn "given_srcdir    = $given_srcdir\n";
 86}
 87
 88@unhandled = update_makefiles($given_srcdir, $pgiven_srcdir, @makefiles);
 89
 90run_config_status(@unhandled);
 91
 92# end of Main
 93############################################################
 94
 95sub dirname {
 96 return $_[0] =~ /(.*)\/.*/ ? "$1" : '.';
 97}
 98
 99# find_depth: Pull the value of DEPTH out of a Makefile (or Makefile.in)
100sub find_depth {
101  my $depth = '';
102  open(MAKEFILE, "<$_[0]") || die "Unable to open $_[0]: $!\n";
103  while (<MAKEFILE>) {
104    next unless /^DEPTH\s*=\s*(\..*)/;
105    $depth = $1;
106    last;
107  }
108  close MAKEFILE;
109  return $depth;
110}
111
112sub parse_arguments {
113  my @args = @_;
114  my $depth = '';
115  my $topsrcdir = '';
116  my $ptopsrcdir;
117  my @makefiles = ();
118
119  while (1) {
120    if ($args[0] eq '-d') {
121      $depth = $args[1];
122      shift @args; 
123      shift @args; 
124    } elsif ($args[0] eq '-t') {
125      $topsrcdir = $args[1];
126      shift @args; 
127      shift @args; 
128    } elsif ($args[0] eq '-p') {
129      $ptopsrcdir = $args[1];
130      shift @args;
131      shift @args;
132    } else {
133      last;
134    }
135  }
136
137  if ($topsrcdir eq '') {
138    $topsrcdir = $0; # Figure out topsrcdir based on program name.
139    $topsrcdir =~ s|/?build/autoconf/.*$||;
140  }
141  if ($ptopsrcdir eq '') {
142    $ptopsrcdir = $topsrcdir;
143  }
144  if ($depth eq '') {
145    # Use $(DEPTH) in the Makefile or Makefile.in to determine the depth
146    if (-e "Makefile.in") {
147      $depth = find_depth("Makefile.in");
148    } elsif (-e "Makefile") {
149      $depth = find_depth("Makefile");
150    } elsif (-e "../Makefile") {
151      $depth = "../".find_depth("../Makefile");
152      $depth =~ s/\/\.$//;
153    } else {
154      warn "Unable to determine depth (e.g. ../..) to root of objdir tree.\n";
155      die  "No Makefile(.in) present. Try running with '-d <depth>'\n";
156    }
157  } 
158
159  # Build the list of makefiles to generate
160  #
161  @makefiles = ();
162  my $makefile;
163  foreach $makefile (@args) {
164    $makefile =~ s/\.in$//;
165    $makefile =~ s/\/$//;
166    $makefile =~ /Makefile$/ or $makefile .= "/Makefile";
167    push @makefiles, "$makefile";
168  }
169  @makefiles = "Makefile" unless @args;
170
171  return ($topsrcdir, $ptopsrcdir, $depth, @makefiles);
172}
173
174
175# Create all the directories at once.
176#   This can be much faster than calling mkdir() for each one.
177sub create_directories {
178  my @makefiles = @_;
179  my @dirs = ();
180  my $ac_file;
181  foreach $ac_file (@makefiles) {
182    push @dirs, dirname($ac_file);
183  }
184  # Call mkdir with the directories sorted by subdir count (how many /'s)
185  system "mkdir -p ". join(' ', map("\"$_\"", @dirs)) if @dirs;
186}
187
188# Find the top of the source directory
189# (Assuming that the executable is in $top_srcdir/build/autoconf)
190sub find_srcdir {
191  my ($ac_given_srcdir, $depth) = @_;
192
193  if ($debug) {
194    print "ac_given_srcdir = $ac_given_srcdir\n";
195    print "depth           = $depth\n";
196  }
197  if ($ac_given_srcdir =~ /^\./ and $depth ne '.') {
198    my $quoted_depth = quotemeta($depth);
199    $ac_given_srcdir =~ s|^$quoted_depth/?||;
200  }
201  if ($debug) {
202    print "ac_given_srcdir = $ac_given_srcdir\n";
203  }
204  $ac_given_srcdir = '.' if $ac_given_srcdir eq '';
205  return $ac_given_srcdir;
206}
207
208# Output the makefiles.
209#
210sub update_makefiles {
211  my ($ac_given_srcdir, $pac_given_srcdir, @makefiles) = @_;
212  my @unhandled=();
213
214  my $ac_file;
215  foreach $ac_file (@makefiles) {
216    my $ac_file_in    = "$ac_given_srcdir/${ac_file}.in";
217    my $ac_dir        = dirname($ac_file);
218    my $ac_dots       = '';
219    my $ac_dir_suffix = '';
220    my $srcdir        = '.';
221    my $top_srcdir    = '.';
222
223    # Determine $srcdir and $top_srcdir
224    #
225    if ($ac_dir ne '.') {
226      $ac_dir_suffix = "/$ac_dir";
227      $ac_dir_suffix =~ s%^/\./%/%;
228      $ac_dots = $ac_dir_suffix;
229      # Remove .. components from the provided dir suffix, and
230      # also the forward path components they were reversing.
231      my $backtracks = $ac_dots =~ s%\.\.(/|$)%%g;
232      while ($backtracks--) {
233        $ac_dots =~ s%/[^/]*%%;
234      }
235      $ac_dots =~ s%/[^/]*%../%g;
236    }
237    if ($ac_given_srcdir eq '.') {
238      if ($ac_dots ne '') {
239        $top_srcdir = $ac_dots;
240        $top_srcdir =~ s%/$%%;
241      }
242    } elsif ($pac_given_srcdir =~ m%^/% or $pac_given_srcdir =~ m%^.:/%) {
243      $srcdir     = "$pac_given_srcdir$ac_dir_suffix";
244      $top_srcdir = "$pac_given_srcdir";
245    } else {
246      if ($debug) {
247      	print "ac_dots       = $ac_dots\n";
248	print "ac_dir_suffix = $ac_dir_suffix\n";
249      }
250      $srcdir     = "$ac_dots$ac_given_srcdir$ac_dir_suffix";
251      $top_srcdir = "$ac_dots$ac_given_srcdir";
252    }
253
254    if ($debug) {
255      print "ac_dir     = $ac_dir\n";
256      print "ac_file    = $ac_file\n";
257      print "ac_file_in = $ac_file_in\n";
258      print "srcdir     = $srcdir\n";
259      print "top_srcdir = $top_srcdir\n";
260      print "cwd        = " . `pwd` . "\n";
261    }
262
263    # Copy the file and make substitutions.
264    #    @srcdir@     -> value of $srcdir
265    #    @top_srcdir@ -> value of $top_srcdir
266    #
267    if (-e $ac_file) {
268      next if -M _ < -M $ac_file_in;  # Next if Makefile is up-to-date.
269      warn "updating $ac_file\n";
270    } else {
271      warn "creating $ac_file\n";
272    }
273
274    open INFILE, "<$ac_file_in" or do {
275      warn "$0: Cannot read $ac_file_in: No such file or directory\n";
276      next;
277    };
278    open OUTFILE, ">$ac_file" or do {
279      warn "$0: Unable to create $ac_file\n";
280      next;
281    };
282
283    while (<INFILE>) {
284      #if (/\@[_a-zA-Z]*\@.*\@[_a-zA-Z]*\@/) {
285      #  #warn "Two defines on a line:$ac_file:$.:$_";
286      #  push @unhandled, $ac_file;
287      #  last;
288      #}
289
290      s/\@srcdir\@/$srcdir/g;
291      s/\@top_srcdir\@/$top_srcdir/g;
292
293      if (/\@[_a-zA-Z]*\@/) {
294        #warn "Unknown variable:$ac_file:$.:$_";
295        push @unhandled, $ac_file;
296        last;
297      }
298      print OUTFILE;
299    }
300    close INFILE;
301    close OUTFILE;
302  }
303  return @unhandled;
304}
305
306sub run_config_status {
307  my @unhandled = @_;
308
309  # Run config.status with any unhandled files.
310  #
311  if (@unhandled) {
312    $ENV{CONFIG_FILES}= join ' ', @unhandled;
313    system "./config.status";
314  }
315}