I don't think trying to bracket the hires time with lores
[p5sagit/p5-mst-13.2.git] / lib / validate.pl
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79072805 1;# $RCSfile: validate.pl,v $$Revision: 4.1 $$Date: 92/08/07 18:24:19 $
a687059c 2
3;# The validate routine takes a single multiline string consisting of
4;# lines containing a filename plus a file test to try on it. (The
5;# file test may also be a 'cd', causing subsequent relative filenames
6;# to be interpreted relative to that directory.) After the file test
7;# you may put '|| die' to make it a fatal error if the file test fails.
8;# The default is '|| warn'. The file test may optionally have a ! prepended
9;# to test for the opposite condition. If you do a cd and then list some
10;# relative filenames, you may want to indent them slightly for readability.
11;# If you supply your own "die" or "warn" message, you can use $file to
12;# interpolate the filename.
13
14;# Filetests may be bunched: -rwx tests for all of -r, -w and -x.
15;# Only the first failed test of the bunch will produce a warning.
16
17;# The routine returns the number of warnings issued.
18
19;# Usage:
62b28dd9 20;# require "validate.pl";
a687059c 21;# $warnings += do validate('
22;# /vmunix -e || die
23;# /boot -e || die
24;# /bin cd
25;# csh -ex
26;# csh !-ug
27;# sh -ex
28;# sh !-ug
29;# /usr -d || warn "What happened to $file?\n"
30;# ');
31
32sub validate {
33 local($file,$test,$warnings,$oldwarnings);
34 foreach $check (split(/\n/,$_[0])) {
35 next if $check =~ /^#/;
36 next if $check =~ /^$/;
37 ($file,$test) = split(' ',$check,2);
38 if ($test =~ s/^(!?-)(\w{2,}\b)/$1Z/) {
39 $testlist = $2;
40 @testlist = split(//,$testlist);
41 }
42 else {
43 @testlist = ('Z');
44 }
45 $oldwarnings = $warnings;
46 foreach $one (@testlist) {
47 $this = $test;
48 $this =~ s/(-\w\b)/$1 \$file/g;
49 $this =~ s/-Z/-$one/;
50 $this .= ' || warn' unless $this =~ /\|\|/;
51 $this =~ s/^(.*\S)\s*\|\|\s*(die|warn)$/$1 || do valmess('$2','$1')/;
52 $this =~ s/\bcd\b/chdir (\$cwd = \$file)/g;
53 eval $this;
54 last if $warnings > $oldwarnings;
55 }
56 }
57 $warnings;
58}
59
60sub valmess {
61 local($disposition,$this) = @_;
62 $file = $cwd . '/' . $file unless $file =~ m|^/|;
63 if ($this =~ /^(!?)-(\w)\s+\$file\s*$/) {
64 $neg = $1;
65 $tmp = $2;
66 $tmp eq 'r' && ($mess = "$file is not readable by uid $>.");
67 $tmp eq 'w' && ($mess = "$file is not writable by uid $>.");
68 $tmp eq 'x' && ($mess = "$file is not executable by uid $>.");
69 $tmp eq 'o' && ($mess = "$file is not owned by uid $>.");
70 $tmp eq 'R' && ($mess = "$file is not readable by you.");
71 $tmp eq 'W' && ($mess = "$file is not writable by you.");
72 $tmp eq 'X' && ($mess = "$file is not executable by you.");
73 $tmp eq 'O' && ($mess = "$file is not owned by you.");
74 $tmp eq 'e' && ($mess = "$file does not exist.");
75 $tmp eq 'z' && ($mess = "$file does not have zero size.");
76 $tmp eq 's' && ($mess = "$file does not have non-zero size.");
77 $tmp eq 'f' && ($mess = "$file is not a plain file.");
78 $tmp eq 'd' && ($mess = "$file is not a directory.");
79 $tmp eq 'l' && ($mess = "$file is not a symbolic link.");
80 $tmp eq 'p' && ($mess = "$file is not a named pipe (FIFO).");
81 $tmp eq 'S' && ($mess = "$file is not a socket.");
82 $tmp eq 'b' && ($mess = "$file is not a block special file.");
83 $tmp eq 'c' && ($mess = "$file is not a character special file.");
84 $tmp eq 'u' && ($mess = "$file does not have the setuid bit set.");
85 $tmp eq 'g' && ($mess = "$file does not have the setgid bit set.");
86 $tmp eq 'k' && ($mess = "$file does not have the sticky bit set.");
87 $tmp eq 'T' && ($mess = "$file is not a text file.");
88 $tmp eq 'B' && ($mess = "$file is not a binary file.");
89 if ($neg eq '!') {
90 $mess =~ s/ is not / should not be / ||
91 $mess =~ s/ does not / should not / ||
92 $mess =~ s/ not / /;
93 }
40da2db3 94 print STDERR $mess,"\n";
a687059c 95 }
96 else {
97 $this =~ s/\$file/'$file'/g;
40da2db3 98 print STDERR "Can't do $this.\n";
a687059c 99 }
100 if ($disposition eq 'die') { exit 1; }
101 ++$warnings;
102}
103
1041;