Module: Nuggets::File::ReplaceMixin

Included in:
File
Defined in:
lib/nuggets/file/replace_mixin.rb

Instance Method Summary collapse

Instance Method Details

#replace(name, create_if_missing = false, &block) ⇒ Object

call-seq:

File.replace(name[, create_if_missing]) { ... } => aString
File.replace(name[, create_if_missing]) { |content| ... } => aString

Replaces the contents of file name with the result of the block. Yields the file’s contents to the block if requested. Returns the new content.

If create_if_missing is true and the file does not exist, it will be created.



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# File 'lib/nuggets/file/replace_mixin.rb', line 40

def replace(name, create_if_missing = false, &block)
  open(name, create_if_missing && !exist?(name) ? 'w+' : 'r+') { |f|
    content = block.arity != 0 ? yield(f.read) : yield

    f.truncate(0)
    f.rewind

    f.print content

    content
  }
end