1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
#!/usr/bin/perl -w
use Data::Dumper;
use File::Find;
use Getopt::Std;
use IO::File;
use strict;
my ($EXCLUDE, $HELP, $QUIET, $TEST);
my $usage = <<EOF;
Usage: $0 -hqt [-e <regexp>] <directory> [<directory>...]
-e <regexp>: Exclude paths matching <regexp> case-insensitive. e.g. "(.gif|.jpg)$"
-h: Display help message and exit
-q: Quiet mode, do not report normal processing of files
-t: Do not actually change files, just report what changes would be made
EOF
my $helpmsg = <<EOF;
This utility converts existing components to use new syntax
introduced in Mason 0.8.
1. Old-style mc_commands (mc_comp, mc_file, etc.) are converted to
new-style \$m methods (\$m->comp, \$m->file, etc.) See Commands.pod for
all the conversions to be performed.
2. References to request variable \$REQ are converted to \$m.
All directories will be traversed recursively. We STRONGLY recommend
that you backup your components, and/or use the -t flag to preview,
before running this program for real. Files are modified
destructively and no automatic backups are created.
EOF
my $warning = <<EOF;
Warning: All directories will be traversed recursively. Files are
modified destructively and no automatic backups are created.
EOF
sub usage
{
print $usage;
exit;
}
sub main
{
my (%opts);
getopts('e:hlqtu',\%opts);
($EXCLUDE, $HELP, $QUIET, $TEST) = @opts{qw(e h q t)};
if ($HELP) { print "$helpmsg\n$usage"; exit }
if (!@ARGV) { print "$usage\n$helpmsg"; exit }
my @dirs = @ARGV;
if (!$TEST) {
print "*** Mason 0.8 Conversion ***\n\n";
print "Quiet mode.\n" if defined($QUIET);
print "Excluding paths matching ($EXCLUDE).\n" if defined($EXCLUDE);
print "Processing ".(@dirs==1 ? "directory " : "directories ").join(",",@dirs)."\n";
print $warning;
print "\nProceed? [n] ";
exit if ((my $ans = <STDIN>) !~ /[Yy]/);
}
my $sub = sub {
if (-f $_ && -s _) {
return if defined($EXCLUDE) && "$File::Find::dir/$_" =~ /$EXCLUDE/i;
convert($_,"$File::Find::dir/$_");
}
};
find($sub,@dirs);
}
sub convert
{
my ($file,$path) = @_;
my $buf;
my $infh = new IO::File $file;
if (!$infh) { warn "cannot read $path: $!"; return }
{ local $/ = undef; $buf = <$infh> }
my $c = 0;
my (@changes,@failures);
my $report = sub { push(@changes,$_[1] ? "$_[0] --> $_[1]" : "removed $_[0]") };
my $report_failure = sub { push(@failures,$_[0]) };
#
# Convert mc_ commands to $m-> method equivalents
#
# Easy substitutions
#
my $easy_cmds = join("|",qw(abort cache cache_self call_self comp comp_exists dhandler_arg file file_root out time));
if (!$TEST) {
$c += ($buf =~ s{mc_($easy_cmds)(?![A-Za-z0-9 _])}{"\$m->$1"}geo);
} else {
while ($buf =~ m{(mc_($easy_cmds)(?![A-Za-z0-9 _]))}go) {
$report->($1,"\$m->$2");
}
}
# Boilerplate substitutions for methods with no arguments
my @subs =
(['mc_auto_comp', '$m->fetch_next->path'],
['mc_caller', '$m->callers(1)->path'],
['mc_comp_source', '$m->current_comp->source_file'],
['mc_comp_stack', 'map($_->title,$m->callers)'],
);
foreach my $sub (@subs) {
my ($mc_cmd,$repl) = @$sub;
if (!$TEST) {
$c += ($buf =~ s{$mc_cmd(\s*\(\))?(?!\s*[\(])}{$repl}ge);
} else {
while ($buf =~ m{($mc_cmd(\s*\(\))?(?!\s*[\(]))}g) {
$report->($1,$repl);
}
}
}
# Boilerplate substitutions for methods with arguments
@subs =
(['mc_auto_next', '$m->call_next'],
);
foreach my $sub (@subs) {
my ($mc_cmd,$repl) = @$sub;
if (!$TEST) {
$c += ($buf =~ s{$mc_cmd}{$repl}ge);
} else {
while ($buf =~ m{($mc_cmd)}g) {
$report->($1,$repl);
}
}
}
# mc_comp_source with simple argument
if (!$TEST) {
$c += ($buf =~ s{mc_comp_source\s*\(([^\(\)]+)\)}{"\$m->fetch_comp($1)->source_file"}ge);
} else {
while ($buf =~ m{(mc_comp_source\s*\(([^\(\)]+)\))}g) {
$report->($1,"\$m->fetch_comp($2)->source_file");
}
}
# mc_suppress_http_header with and without arguments
if (!$TEST) {
$c += ($buf =~ s{mc_suppress_http_header\s*(?!\s*\();?}{}g);
$c += ($buf =~ s{mc_suppress_http_header\s*\([^\(\)]*\)\s*;?}{}g);
} else {
while ($buf =~ m{(mc_suppress_http_header\s*(?!\s*\();?)}g) {
$report->($1,"");
}
while ($buf =~ m{(mc_suppress_http_header\s*\([^\(\)]*\)\s*;?)}g) {
$report->($1,"");
}
}
#
# Convert $REQ to $m
#
if (!$TEST) {
$c += ($buf =~ s{\$REQ(?![A-Za-z0-9_])}{\$m}go);
} else {
while ($buf =~ m{(\$REQ(?![A-Za-z0-9_]))}go) {
$report->($1,"\$m");
}
}
# Report substitutions we can't handle
foreach my $cmd (qw(mc_comp_source mc_suppress_http_header)) {
if ($buf =~ m{$cmd\s*\([^\)]*\(}) {
$report_failure->("Can't convert $cmd with complex arguments");
}
}
if ($buf =~ m{mc_date}) {
$report_failure->("Can't convert mc_date");
}
if ($TEST) {
if (@changes) {
print scalar(@changes)." substitutions in $path:\n";
print join("\n",@changes)."\n";
}
}
if ($c && !$TEST) {
print "$c substitutions in $path\n" if !$QUIET;
my $outfh = new IO::File ">$file";
if (!$outfh) { warn "cannot write $path: $!"; return }
$outfh->print($buf);
}
foreach my $failure (@failures) {
print "** Warning: $failure; must fix manually\n";
}
print "\n" if (($TEST && @changes) || @failures);
}
main();
|
