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a0d0e21e LW |
1 | package File::Find; |
2 | require 5.000; | |
3 | require Exporter; | |
748a9306 LW |
4 | use Config; |
5 | use Cwd; | |
6 | use File::Basename; | |
a0d0e21e LW |
7 | |
8 | @ISA = qw(Exporter); | |
748a9306 | 9 | @EXPORT = qw(find finddepth $name $dir); |
a0d0e21e LW |
10 | |
11 | # Usage: | |
12 | # use File::Find; | |
13 | # | |
14 | # find(\&wanted, '/foo','/bar'); | |
15 | # | |
16 | # sub wanted { ... } | |
17 | # where wanted does whatever you want. $dir contains the | |
18 | # current directory name, and $_ the current filename within | |
19 | # that directory. $name contains "$dir/$_". You are cd'ed | |
20 | # to $dir when the function is called. The function may | |
21 | # set $prune to prune the tree. | |
22 | # | |
23 | # This library is primarily for find2perl, which, when fed | |
24 | # | |
25 | # find2perl / -name .nfs\* -mtime +7 -exec rm -f {} \; -o -fstype nfs -prune | |
26 | # | |
27 | # spits out something like this | |
28 | # | |
29 | # sub wanted { | |
30 | # /^\.nfs.*$/ && | |
31 | # (($dev,$ino,$mode,$nlink,$uid,$gid) = lstat($_)) && | |
32 | # int(-M _) > 7 && | |
33 | # unlink($_) | |
34 | # || | |
35 | # ($nlink || (($dev,$ino,$mode,$nlink,$uid,$gid) = lstat($_))) && | |
36 | # $dev < 0 && | |
37 | # ($prune = 1); | |
38 | # } | |
39 | # | |
40 | # Set the variable $dont_use_nlink if you're using AFS, since AFS cheats. | |
41 | ||
42 | sub find { | |
43 | my $wanted = shift; | |
748a9306 | 44 | my $cwd = fastcwd(); |
a0d0e21e LW |
45 | foreach $topdir (@_) { |
46 | (($topdev,$topino,$topmode,$topnlink) = stat($topdir)) | |
47 | || (warn("Can't stat $topdir: $!\n"), next); | |
48 | if (-d _) { | |
49 | if (chdir($topdir)) { | |
50 | ($dir,$_) = ($topdir,'.'); | |
51 | $name = $topdir; | |
52 | &$wanted; | |
53 | ($fixtopdir = $topdir) =~ s,/$,, ; | |
748a9306 | 54 | $fixtopdir =~ s/\.dir$// if $Is_VMS; ; |
a0d0e21e LW |
55 | &finddir($wanted,$fixtopdir,$topnlink); |
56 | } | |
57 | else { | |
58 | warn "Can't cd to $topdir: $!\n"; | |
59 | } | |
60 | } | |
61 | else { | |
748a9306 | 62 | unless (($dir,$_) = fileparse($topdir)) { |
a0d0e21e LW |
63 | ($dir,$_) = ('.', $topdir); |
64 | } | |
65 | $name = $topdir; | |
66 | chdir $dir && &$wanted; | |
67 | } | |
68 | chdir $cwd; | |
69 | } | |
70 | } | |
71 | ||
72 | sub finddir { | |
73 | local($wanted,$dir,$nlink) = @_; | |
74 | local($dev,$ino,$mode,$subcount); | |
75 | local($name); | |
76 | ||
77 | # Get the list of files in the current directory. | |
78 | ||
79 | opendir(DIR,'.') || (warn "Can't open $dir: $!\n", return); | |
80 | local(@filenames) = readdir(DIR); | |
81 | closedir(DIR); | |
82 | ||
83 | if ($nlink == 2 && !$dont_use_nlink) { # This dir has no subdirectories. | |
84 | for (@filenames) { | |
85 | next if $_ eq '.'; | |
86 | next if $_ eq '..'; | |
87 | $name = "$dir/$_"; | |
88 | $nlink = 0; | |
89 | &$wanted; | |
90 | } | |
91 | } | |
92 | else { # This dir has subdirectories. | |
93 | $subcount = $nlink - 2; | |
94 | for (@filenames) { | |
95 | next if $_ eq '.'; | |
96 | next if $_ eq '..'; | |
97 | $nlink = $prune = 0; | |
98 | $name = "$dir/$_"; | |
99 | &$wanted; | |
100 | if ($subcount > 0 || $dont_use_nlink) { # Seen all the subdirs? | |
101 | ||
102 | # Get link count and check for directoriness. | |
103 | ||
748a9306 LW |
104 | ($dev,$ino,$mode,$nlink) = ($Is_VMS ? stat($_) : lstat($_)) |
105 | unless ($nlink || $dont_use_nlink); | |
a0d0e21e LW |
106 | |
107 | if (-d _) { | |
108 | ||
109 | # It really is a directory, so do it recursively. | |
110 | ||
111 | if (!$prune && chdir $_) { | |
748a9306 | 112 | $name =~ s/\.dir$// if $Is_VMS; |
a0d0e21e LW |
113 | &finddir($wanted,$name,$nlink); |
114 | chdir '..'; | |
115 | } | |
116 | --$subcount; | |
117 | } | |
118 | } | |
119 | } | |
120 | } | |
121 | } | |
122 | ||
123 | # Usage: | |
124 | # use File::Find; | |
125 | # | |
126 | # finddepth(\&wanted, '/foo','/bar'); | |
127 | # | |
128 | # sub wanted { ... } | |
129 | # where wanted does whatever you want. $dir contains the | |
130 | # current directory name, and $_ the current filename within | |
131 | # that directory. $name contains "$dir/$_". You are cd'ed | |
132 | # to $dir when the function is called. The function may | |
133 | # set $prune to prune the tree. | |
134 | # | |
135 | # This library is primarily for find2perl, which, when fed | |
136 | # | |
137 | # find2perl / -name .nfs\* -mtime +7 -exec rm -f {} \; -o -fstype nfs -prune | |
138 | # | |
139 | # spits out something like this | |
140 | # | |
141 | # sub wanted { | |
142 | # /^\.nfs.*$/ && | |
143 | # (($dev,$ino,$mode,$nlink,$uid,$gid) = lstat($_)) && | |
144 | # int(-M _) > 7 && | |
145 | # unlink($_) | |
146 | # || | |
147 | # ($nlink || (($dev,$ino,$mode,$nlink,$uid,$gid) = lstat($_))) && | |
148 | # $dev < 0 && | |
149 | # ($prune = 1); | |
150 | # } | |
151 | ||
152 | sub finddepth { | |
153 | my $wanted = shift; | |
748a9306 | 154 | $cwd = fastcwd();; |
a0d0e21e LW |
155 | foreach $topdir (@_) { |
156 | (($topdev,$topino,$topmode,$topnlink) = stat($topdir)) | |
157 | || (warn("Can't stat $topdir: $!\n"), next); | |
158 | if (-d _) { | |
159 | if (chdir($topdir)) { | |
160 | ($fixtopdir = $topdir) =~ s,/$,, ; | |
748a9306 | 161 | $fixtopdir =~ s/\.dir$// if $Is_VMS; |
a0d0e21e LW |
162 | &finddepthdir($wanted,$fixtopdir,$topnlink); |
163 | ($dir,$_) = ($fixtopdir,'.'); | |
164 | $name = $fixtopdir; | |
165 | &$wanted; | |
166 | } | |
167 | else { | |
168 | warn "Can't cd to $topdir: $!\n"; | |
169 | } | |
170 | } | |
171 | else { | |
748a9306 | 172 | unless (($dir,$_) = fileparse($topdir)) { |
a0d0e21e LW |
173 | ($dir,$_) = ('.', $topdir); |
174 | } | |
175 | chdir $dir && &$wanted; | |
176 | } | |
177 | chdir $cwd; | |
178 | } | |
179 | } | |
180 | ||
181 | sub finddepthdir { | |
182 | my($wanted,$dir,$nlink) = @_; | |
183 | my($dev,$ino,$mode,$subcount); | |
184 | my($name); | |
185 | ||
186 | # Get the list of files in the current directory. | |
187 | ||
188 | opendir(DIR,'.') || warn "Can't open $dir: $!\n"; | |
189 | my(@filenames) = readdir(DIR); | |
190 | closedir(DIR); | |
191 | ||
748a9306 | 192 | if ($nlink == 2 && !$dont_use_nlink) { # This dir has no subdirectories. |
a0d0e21e LW |
193 | for (@filenames) { |
194 | next if $_ eq '.'; | |
195 | next if $_ eq '..'; | |
196 | $name = "$dir/$_"; | |
197 | $nlink = 0; | |
198 | &$wanted; | |
199 | } | |
200 | } | |
201 | else { # This dir has subdirectories. | |
202 | $subcount = $nlink - 2; | |
203 | for (@filenames) { | |
204 | next if $_ eq '.'; | |
205 | next if $_ eq '..'; | |
206 | $nlink = $prune = 0; | |
207 | $name = "$dir/$_"; | |
748a9306 | 208 | if ($subcount > 0 || $dont_use_nlink) { # Seen all the subdirs? |
a0d0e21e LW |
209 | |
210 | # Get link count and check for directoriness. | |
211 | ||
748a9306 | 212 | ($dev,$ino,$mode,$nlink) = ($Is_VMS ? stat($_) : lstat($_)); |
a0d0e21e LW |
213 | |
214 | if (-d _) { | |
215 | ||
216 | # It really is a directory, so do it recursively. | |
217 | ||
218 | if (!$prune && chdir $_) { | |
748a9306 | 219 | $name =~ s/\.dir$// if $Is_VMS; |
a0d0e21e LW |
220 | &finddepthdir($wanted,$name,$nlink); |
221 | chdir '..'; | |
222 | } | |
223 | --$subcount; | |
224 | } | |
225 | } | |
226 | &$wanted; | |
227 | } | |
228 | } | |
229 | } | |
230 | ||
748a9306 LW |
231 | if ($Config{'osname'} eq 'VMS') { |
232 | $Is_VMS = 1; | |
233 | $dont_use_nlink = 1; | |
234 | } | |
235 | ||
a0d0e21e LW |
236 | 1; |
237 |