diff options
author | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-08-15 23:23:39 +0000 |
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committer | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-08-15 23:23:39 +0000 |
commit | 6175ca03be6d0d51359f9017123708987d0f5eb7 (patch) | |
tree | ecfcf6e79a21b1d25c3f6f42dd68ea0a14add89c /ruby_1_8_5/lib/find.rb | |
parent | 80a56b248b2e9cfc95622aed98750df05a19f667 (diff) |
add tag v1_8_5_91v1_8_5_91
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_5_91@13046 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ruby_1_8_5/lib/find.rb')
-rw-r--r-- | ruby_1_8_5/lib/find.rb | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/ruby_1_8_5/lib/find.rb b/ruby_1_8_5/lib/find.rb new file mode 100644 index 0000000000..0d22dd62d6 --- /dev/null +++ b/ruby_1_8_5/lib/find.rb @@ -0,0 +1,79 @@ +# +# find.rb: the Find module for processing all files under a given directory. +# + +# +# The +Find+ module supports the top-down traversal of a set of file paths. +# +# For example, to total the size of all files under your home directory, +# ignoring anything in a "dot" directory (e.g. $HOME/.ssh): +# +# require 'find' +# +# total_size = 0 +# +# Find.find(ENV["HOME"]) do |path| +# if FileTest.directory?(path) +# if File.basename(path)[0] == ?. +# Find.prune # Don't look any further into this directory. +# else +# next +# end +# else +# total_size += FileTest.size(path) +# end +# end +# +module Find + + # + # Calls the associated block with the name of every file and directory listed + # as arguments, then recursively on their subdirectories, and so on. + # + # See the +Find+ module documentation for an example. + # + def find(*paths) # :yield: path + paths.collect!{|d| d.dup} + while file = paths.shift + catch(:prune) do + yield file.dup.taint + next unless File.exist? file + begin + if File.lstat(file).directory? then + d = Dir.open(file) + begin + for f in d + next if f == "." or f == ".." + if File::ALT_SEPARATOR and file =~ /^(?:[\/\\]|[A-Za-z]:[\/\\]?)$/ then + f = file + f + elsif file == "/" then + f = "/" + f + else + f = File.join(file, f) + end + paths.unshift f.untaint + end + ensure + d.close + end + end + rescue Errno::ENOENT, Errno::EACCES + end + end + end + end + + # + # Skips the current file or directory, restarting the loop with the next + # entry. If the current file is a directory, that directory will not be + # recursively entered. Meaningful only within the block associated with + # Find::find. + # + # See the +Find+ module documentation for an example. + # + def prune + throw :prune + end + + module_function :find, :prune +end |