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
|
#!/usr/bin/perl -w
use Getopt::Std;
use strict;
our ($opt_n, $opt_t);
getopts('nt:');
my $dry_run = $opt_n;
my $tag = $opt_t;
my $any_changed = 0;
sub fix_tag($$$$$)
{
my ($op, $ver, $body, $else, $full) = @_;
my $matches;
# Only obsolete tags
return $full unless $ver < $tag;
if ($op eq '==')
{
$matches = $tag == $ver;
}
elsif ($op eq '!=')
{
$matches = $tag != $ver;
}
elsif ($op eq '<=')
{
$matches = $tag <= $ver;
}
elsif ($op eq '<')
{
$matches = $tag < $ver;
}
elsif ($op eq '>=')
{
$matches = $tag >= $ver;
}
elsif ($op eq '>')
{
$matches = $tag > $ver;
}
die "Unknown operator '$op'" unless defined $matches;
return $matches ? $body
: defined $else ? $else
: "";
}
if (!defined $tag)
{
my $tagf = `git ls-files '*tag-version.h'`;
chomp $tagf;
die "Too many matches for tag-version.h\n" if $tagf =~ /\n/;
open T, "<", $tagf or die "Could not open $tagf: $!\n";
while (<T>)
{
/^#define\s+TAG_MAJOR_VERSION\s+(\d+)/ and $tag = $1;
}
}
die "Could not determine version tag\n" unless defined $tag;
my @files = @ARGV;
undef $/;
unless (@files)
{
@files = (grep /\.(cc|h)$/ && !/(^|\/)prebuilt\//, split /\n/, `git ls-files`);
}
for my $f (@files)
{
open F, "<", $f or die "Can't read $f\n";
my $old = $_ = <F>;
close F;
s/# Full match in $1
(
# #if line. Comparison operator in $2, tag in $3
^\s* \# \s* if \s+ TAG_MAJOR_VERSION \s* (!=|==|>=|>|<=|<) \s* (\d+) \n
# body of #if in $4. We don't handle #if TAG_MAJOR_VERSION blocks
# that contain nested #ifs.
((?: (?! \s* \# \s* (?:if|elif|else|endif)) .* \n)+)
# optional #else, body in $5
(?:
\s* \# \s* else \n
((?: (?! \s* \# \s* (?:if|elif|else|endif)) .* \n)+)
)?
\s* \# \s* endif \n
)
/fix_tag($2, $3, $4, $5, $1)/gexm;
if ($old ne $_)
{
print "$f\n";
$any_changed = 1;
if (!$dry_run)
{
open F, ">", $f or die "Can't write $f\n";
print F;
close F;
}
}
}
exit 1 if ($dry_run and $any_changed);
|
