9bacf14ca2
Split the `destroy` method of the file_type::ruby provider into two private methods: `handle_destroy_line` which is the same as the previous `destroy` method, and `handle_destroy_with_match` which will destroy any line which matches the `match` parameter, raising an error if multiple lines match and the `multiple` parameter is not `true`. This new behavior is only used if the new boolean parameter `match_for_absence` is `true` (it defaults to `false`).
128 lines
3.3 KiB
Ruby
128 lines
3.3 KiB
Ruby
Puppet::Type.type(:file_line).provide(:ruby) do
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def exists?
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if resource[:replace].to_s != 'true' and count_matches(match_regex) > 0
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true
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else
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lines.find do |line|
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line.chomp == resource[:line].chomp
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end
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end
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end
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def create
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unless resource[:replace].to_s != 'true' and count_matches(match_regex) > 0
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if resource[:match]
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handle_create_with_match
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elsif resource[:after]
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handle_create_with_after
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else
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append_line
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end
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end
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end
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def destroy
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if resource[:match_for_absence].to_s == 'true' and resource[:match]
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handle_destroy_with_match
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else
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handle_destroy_line
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end
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end
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private
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def lines
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# If this type is ever used with very large files, we should
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# write this in a different way, using a temp
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# file; for now assuming that this type is only used on
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# small-ish config files that can fit into memory without
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# too much trouble.
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@lines ||= File.readlines(resource[:path])
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end
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def match_regex
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resource[:match] ? Regexp.new(resource[:match]) : nil
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end
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def handle_create_with_match()
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regex_after = resource[:after] ? Regexp.new(resource[:after]) : nil
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match_count = count_matches(match_regex)
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if match_count > 1 && resource[:multiple].to_s != 'true'
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raise Puppet::Error, "More than one line in file '#{resource[:path]}' matches pattern '#{resource[:match]}'"
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end
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File.open(resource[:path], 'w') do |fh|
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lines.each do |l|
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fh.puts(match_regex.match(l) ? resource[:line] : l)
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if (match_count == 0 and regex_after)
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if regex_after.match(l)
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fh.puts(resource[:line])
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match_count += 1 #Increment match_count to indicate that the new line has been inserted.
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end
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end
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end
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if (match_count == 0)
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fh.puts(resource[:line])
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end
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end
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end
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def handle_create_with_after
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regex = Regexp.new(resource[:after])
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count = count_matches(regex)
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if count > 1 && resource[:multiple].to_s != 'true'
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raise Puppet::Error, "#{count} lines match pattern '#{resource[:after]}' in file '#{resource[:path]}'. One or no line must match the pattern."
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end
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File.open(resource[:path], 'w') do |fh|
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lines.each do |l|
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fh.puts(l)
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if regex.match(l) then
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fh.puts(resource[:line])
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end
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end
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end
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if (count == 0) # append the line to the end of the file
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append_line
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end
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end
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def count_matches(regex)
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lines.select{|l| l.match(regex)}.size
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end
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def handle_destroy_with_match
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match_count = count_matches(match_regex)
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if match_count > 1 && resource[:multiple].to_s != 'true'
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raise Puppet::Error, "More than one line in file '#{resource[:path]}' matches pattern '#{resource[:match]}'"
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end
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local_lines = lines
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File.open(resource[:path],'w') do |fh|
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fh.write(local_lines.reject{|l| match_regex.match(l) }.join(''))
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end
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end
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def handle_destroy_line
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local_lines = lines
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File.open(resource[:path],'w') do |fh|
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fh.write(local_lines.reject{|l| l.chomp == resource[:line] }.join(''))
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end
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end
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##
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# append the line to the file.
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#
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# @api private
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def append_line
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File.open(resource[:path], 'w') do |fh|
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lines.each do |l|
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fh.puts(l)
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end
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fh.puts resource[:line]
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end
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end
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end
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