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Diffstat (limited to 'lib/File/Find.pm')
-rw-r--r-- | lib/File/Find.pm | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/lib/File/Find.pm b/lib/File/Find.pm index c7b0051ce2..ba495a140a 100644 --- a/lib/File/Find.pm +++ b/lib/File/Find.pm @@ -5,6 +5,61 @@ use Config; use Cwd; use File::Basename; +=head1 NAME + +find - traverse a file tree + +finddepth - traverse a directory structure depth-first + +=head1 SYNOPSIS + + use File::Find; + find(\&wanted, '/foo','/bar'); + sub wanted { ... } + + use File::Find; + finddepth(\&wanted, '/foo','/bar'); + sub wanted { ... } + +=head1 DESCRIPTION + +The wanted() function does whatever verifications you want. $dir contains +the current directory name, and $_ the current filename within that +directory. $name contains C<"$dir/$_">. You are chdir()'d to $dir when +the function is called. The function may set $prune to prune the tree. + +This library is primarily for the C<find2perl> tool, which when fed, + + find2perl / -name .nfs\* -mtime +7 \ + -exec rm -f {} \; -o -fstype nfs -prune + +produces something like: + + sub wanted { + /^\.nfs.*$/ && + (($dev,$ino,$mode,$nlink,$uid,$gid) = lstat($_)) && + int(-M _) > 7 && + unlink($_) + || + ($nlink || (($dev,$ino,$mode,$nlink,$uid,$gid) = lstat($_))) && + $dev < 0 && + ($prune = 1); + } + +Set the variable $dont_use_nlink if you're using AFS, since AFS cheats. + +C<finddepth> is just like C<find>, except that it does a depth-first +search. + +Here's another interesting wanted function. It will find all symlinks +that don't resolve: + + sub wanted { + -l && !-e && print "bogus link: $name\n"; + } + +=cut + @ISA = qw(Exporter); @EXPORT = qw(find finddepth $name $dir); |