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1 | package File::CheckTree; |
2 | require 5.000; |
3 | require Exporter; |
4 | |
5 | @ISA = qw(Exporter); |
6 | @EXPORT = qw(validate); |
7 | |
8 | # $RCSfile: validate.pl,v $$Revision: 4.1 $$Date: 92/08/07 18:24:19 $ |
9 | |
10 | # The validate routine takes a single multiline string consisting of |
11 | # lines containing a filename plus a file test to try on it. (The |
12 | # file test may also be a 'cd', causing subsequent relative filenames |
13 | # to be interpreted relative to that directory.) After the file test |
14 | # you may put '|| die' to make it a fatal error if the file test fails. |
15 | # The default is '|| warn'. The file test may optionally have a ! prepended |
16 | # to test for the opposite condition. If you do a cd and then list some |
17 | # relative filenames, you may want to indent them slightly for readability. |
18 | # If you supply your own "die" or "warn" message, you can use $file to |
19 | # interpolate the filename. |
20 | |
21 | # Filetests may be bunched: -rwx tests for all of -r, -w and -x. |
22 | # Only the first failed test of the bunch will produce a warning. |
23 | |
24 | # The routine returns the number of warnings issued. |
25 | |
26 | # Usage: |
27 | # use File::CheckTree; |
28 | # $warnings += validate(' |
29 | # /vmunix -e || die |
30 | # /boot -e || die |
31 | # /bin cd |
32 | # csh -ex |
33 | # csh !-ug |
34 | # sh -ex |
35 | # sh !-ug |
36 | # /usr -d || warn "What happened to $file?\n" |
37 | # '); |
38 | |
39 | sub validate { |
40 | local($file,$test,$warnings,$oldwarnings); |
41 | foreach $check (split(/\n/,$_[0])) { |
42 | next if $check =~ /^#/; |
43 | next if $check =~ /^$/; |
44 | ($file,$test) = split(' ',$check,2); |
45 | if ($test =~ s/^(!?-)(\w{2,}\b)/$1Z/) { |
46 | $testlist = $2; |
47 | @testlist = split(//,$testlist); |
48 | } |
49 | else { |
50 | @testlist = ('Z'); |
51 | } |
52 | $oldwarnings = $warnings; |
53 | foreach $one (@testlist) { |
54 | $this = $test; |
55 | $this =~ s/(-\w\b)/$1 \$file/g; |
56 | $this =~ s/-Z/-$one/; |
57 | $this .= ' || warn' unless $this =~ /\|\|/; |
58 | $this =~ s/^(.*\S)\s*\|\|\s*(die|warn)$/$1 || valmess('$2','$1')/; |
59 | $this =~ s/\bcd\b/chdir (\$cwd = \$file)/g; |
60 | eval $this; |
61 | last if $warnings > $oldwarnings; |
62 | } |
63 | } |
64 | $warnings; |
65 | } |
66 | |
67 | sub valmess { |
68 | local($disposition,$this) = @_; |
69 | $file = $cwd . '/' . $file unless $file =~ m|^/|; |
70 | if ($this =~ /^(!?)-(\w)\s+\$file\s*$/) { |
71 | $neg = $1; |
72 | $tmp = $2; |
73 | $tmp eq 'r' && ($mess = "$file is not readable by uid $>."); |
74 | $tmp eq 'w' && ($mess = "$file is not writable by uid $>."); |
75 | $tmp eq 'x' && ($mess = "$file is not executable by uid $>."); |
76 | $tmp eq 'o' && ($mess = "$file is not owned by uid $>."); |
77 | $tmp eq 'R' && ($mess = "$file is not readable by you."); |
78 | $tmp eq 'W' && ($mess = "$file is not writable by you."); |
79 | $tmp eq 'X' && ($mess = "$file is not executable by you."); |
80 | $tmp eq 'O' && ($mess = "$file is not owned by you."); |
81 | $tmp eq 'e' && ($mess = "$file does not exist."); |
82 | $tmp eq 'z' && ($mess = "$file does not have zero size."); |
83 | $tmp eq 's' && ($mess = "$file does not have non-zero size."); |
84 | $tmp eq 'f' && ($mess = "$file is not a plain file."); |
85 | $tmp eq 'd' && ($mess = "$file is not a directory."); |
86 | $tmp eq 'l' && ($mess = "$file is not a symbolic link."); |
87 | $tmp eq 'p' && ($mess = "$file is not a named pipe (FIFO)."); |
88 | $tmp eq 'S' && ($mess = "$file is not a socket."); |
89 | $tmp eq 'b' && ($mess = "$file is not a block special file."); |
90 | $tmp eq 'c' && ($mess = "$file is not a character special file."); |
91 | $tmp eq 'u' && ($mess = "$file does not have the setuid bit set."); |
92 | $tmp eq 'g' && ($mess = "$file does not have the setgid bit set."); |
93 | $tmp eq 'k' && ($mess = "$file does not have the sticky bit set."); |
94 | $tmp eq 'T' && ($mess = "$file is not a text file."); |
95 | $tmp eq 'B' && ($mess = "$file is not a binary file."); |
96 | if ($neg eq '!') { |
97 | $mess =~ s/ is not / should not be / || |
98 | $mess =~ s/ does not / should not / || |
99 | $mess =~ s/ not / /; |
100 | } |
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101 | print STDERR $mess,"\n"; |
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102 | } |
103 | else { |
104 | $this =~ s/\$file/'$file'/g; |
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105 | print STDERR "Can't do $this.\n"; |
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106 | } |
107 | if ($disposition eq 'die') { exit 1; } |
108 | ++$warnings; |
109 | } |
110 | |
111 | 1; |
112 | |