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
|
#!/usr/bin/perl -w
# SPDX-License-Identifier: GPL-2.0
use strict;
use Getopt::Long qw(:config no_auto_abbrev);
my $input_file = "MAINTAINERS";
my $output_file = "MAINTAINERS.new";
my $output_section = "SECTION.new";
my $help = 0;
my $P = $0;
if (!GetOptions(
'input=s' => \$input_file,
'output=s' => \$output_file,
'section=s' => \$output_section,
'h|help|usage' => \$help,
)) {
die "$P: invalid argument - use --help if necessary\n";
}
if ($help != 0) {
usage();
exit 0;
}
sub usage {
print <<EOT;
usage: $P [options] <pattern matching regexes>
--input => MAINTAINERS file to read (default: MAINTAINERS)
--output => sorted MAINTAINERS file to write (default: MAINTAINERS.new)
--section => new sorted MAINTAINERS file to write to (default: SECTION.new)
If <pattern match regexes> exist, then the sections that match the
regexes are not written to the output file but are written to the
section file.
EOT
}
# sort comparison functions
sub by_category($$) {
my ($a, $b) = @_;
$a = uc $a;
$b = uc $b;
# This always sorts last
$a =~ s/THE REST/ZZZZZZ/g;
$b =~ s/THE REST/ZZZZZZ/g;
return $a cmp $b;
}
sub by_pattern($$) {
my ($a, $b) = @_;
my $preferred_order = 'MRPLSWTQBCFXNK';
my $a1 = uc(substr($a, 0, 1));
my $b1 = uc(substr($b, 0, 1));
my $a_index = index($preferred_order, $a1);
my $b_index = index($preferred_order, $b1);
$a_index = 1000 if ($a_index == -1);
$b_index = 1000 if ($b_index == -1);
if (($a1 =~ /^F$/ && $b1 =~ /^F$/) ||
($a1 =~ /^X$/ && $b1 =~ /^X$/)) {
return $a cmp $b;
}
if ($a_index < $b_index) {
return -1;
} elsif ($a_index == $b_index) {
return 0;
} else {
return 1;
}
}
sub trim {
my $s = shift;
$s =~ s/\s+$//;
$s =~ s/^\s+//;
return $s;
}
sub alpha_output {
my ($hashref, $filename) = (@_);
return if ! scalar(keys %$hashref);
open(my $file, '>', "$filename") or die "$P: $filename: open failed - $!\n";
my $separator;
foreach my $key (sort by_category keys %$hashref) {
if ($key eq " ") {
print $file $$hashref{$key};
} else {
if (! defined $separator) {
$separator = "\n";
} else {
print $file $separator;
}
print $file $key . "\n";
foreach my $pattern (sort by_pattern split('\n', %$hashref{$key})) {
print $file ($pattern . "\n");
}
}
}
close($file);
}
sub file_input {
my ($hashref, $filename) = (@_);
my $lastline = "";
my $case = " ";
$$hashref{$case} = "";
open(my $file, '<', "$filename") or die "$P: $filename: open failed - $!\n";
while (<$file>) {
my $line = $_;
# Pattern line?
if ($line =~ m/^([A-Z]):\s*(.*)/) {
$line = $1 . ":\t" . trim($2) . "\n";
if ($lastline eq "") {
$$hashref{$case} = $$hashref{$case} . $line;
next;
}
$case = trim($lastline);
exists $$hashref{$case} and die "Header '$case' already exists";
$$hashref{$case} = $line;
$lastline = "";
next;
}
if ($case eq " ") {
$$hashref{$case} = $$hashref{$case} . $lastline;
$lastline = $line;
next;
}
trim($lastline) eq "" or die ("Odd non-pattern line '$lastline' for '$case'");
$lastline = $line;
}
$$hashref{$case} = $$hashref{$case} . $lastline;
close($file);
}
my %hash;
my %new_hash;
file_input(\%hash, $input_file);
foreach my $type (@ARGV) {
foreach my $key (keys %hash) {
if ($key =~ /$type/ || $hash{$key} =~ /$type/) {
$new_hash{$key} = $hash{$key};
delete $hash{$key};
}
}
}
alpha_output(\%hash, $output_file);
alpha_output(\%new_hash, $output_section);
exit(0);
|
