I am attempting to delete files based on a pattern from all directories contained in a given path. I have the following but it acts like an infinite loop. When I cancel out of the loop, no files are deleted. Where am I going wrong?
def recursive_delete (dirPath, pattern)
if (defined? dirPath and defined? pattern && File.exists?(dirPath))
stack = [dirPath]
while !stack.empty?
current = stack.delete_at(0)
Dir.foreach(current) do |file|
if File.directory?(file)
stack << current+file
else
File.delete(dirPath + file) if (pattern).match(file)
end
end
end
end
end
# to call:
recursive_delete("c:\Test_Directory\", /^*.cs$/)
another ruby one liner shortcuts using FileUtils to recursive delete files under a directory
FileUtils.rm Dir.glob("c:/temp/**/*.so")
even shorter:
FileUtils.rm Dir["c:/temp/**/*.so"]
another complex usage: multiple patterns (multiple extension in different directory). Warning you cannot use Dir.glob()
FileUtils.rm Dir["c:/temp/**/*.so","c:/temp1/**/*.txt","d:/temp2/**/*.so"]
You don't need to re-implement this wheel. Recursive file glob is already part of the core library.
Dir.glob('C:\Test_Directory\**\*.cs').each { |f| File.delete(f) }
Dir#glob lists files in a directory and can accept wildcards. **
is a super-wildcard that means "match anything, including entire trees of directories", so it will match any level deep (including "no" levels deep: .cs
files in C:\Test_Directory
itself will also match using the pattern I supplied).
@kkurian points out (in the comments) that File#delete
can accept a list, so this could be simplified to:
File.delete(*Dir.glob('C:\Test_Directory\**\*.cs'))
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