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
|
#!/usr/bin/env perl
#
# Copyright (C) 2006 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
use strict;
# The comparisons below are strict and the stamp file is scanned first, so a
# file that shares a timestamp with the stamp counts as older and the caller
# skips the work. Perl truncates the mtime of core stat to whole seconds, which
# makes that tie reachable whenever two touches fall in the same second. Ask
# Time::HiRes for the fractional mtime, and keep core stat where the module is
# missing.
BEGIN { eval { require Time::HiRes; Time::HiRes->import('stat') } }
sub get_ts($$) {
my $path = shift;
my $options = shift;
my $ts = 0;
my $fn = "";
$path .= "/" if( -d $path);
open FIND, "find $path -type f -and -not -path \\*/.svn\\* -and -not -path \\*CVS\\* $options 2>/dev/null |";
while (<FIND>) {
chomp;
my $file = $_;
next if -l $file;
my $mt = (stat $file)[9];
if ($mt > $ts) {
$ts = $mt;
$fn = $file;
}
}
close FIND;
return ($ts, $fn);
}
sub any_newer($$$) {
my ($stamp, $paths, $options) = @_;
my $list = join(" ", map { -d $_ ? "$_/" : $_ } @$paths);
open FIND, "find $list -type f -and -not -path \\*/.svn\\* -and -not -path \\*CVS\\* $options -newer $stamp -print -quit 2>/dev/null |";
my $hit = <FIND>;
close FIND;
return defined $hit;
}
(@ARGV > 0) or push @ARGV, ".";
my $ts = 0;
my $n = ".";
my %options;
my @paths;
while (@ARGV > 0) {
my $path = shift @ARGV;
if ($path =~ /^-x/) {
my $str = shift @ARGV;
$options{"findopts"} .= " -and -not -path '".$str."'"
} elsif ($path =~ /^-f/) {
$options{"findopts"} .= " -follow";
} elsif ($path =~ /^-n/) {
my $arg = $ARGV[0];
$options{$path} = $arg;
} elsif ($path =~ /^-/) {
$options{$path} = 1;
} else {
push @paths, $path;
}
}
my $findopts = $options{"findopts"} || "";
if (defined $options{"-n"} && !$options{"-p"} && !$options{"-t"} &&
!$options{"-F"} && $findopts !~ /-follow/) {
exit 1 unless -f $options{"-n"};
exit(any_newer($options{"-n"}, \@paths, $findopts) ? 1 : 0);
}
for my $path (@paths) {
my ($tmp, $fname) = get_ts($path, $findopts);
if ($tmp > $ts) {
if ($options{'-F'}) {
$n = $fname;
} else {
$n = $path;
}
$ts = $tmp;
}
}
if ($options{"-n"}) {
exit ($n eq $options{"-n"} ? 0 : 1);
} elsif ($options{"-p"}) {
print "$n\n";
} elsif ($options{"-t"}) {
print "$ts\n";
} else {
print "$n\t$ts\n";
}
|
