Method: Bundler::RubyDsl#normalize_ruby_file

Defined in:
lib/bundler/ruby_dsl.rb

#normalize_ruby_file(filename) ⇒ Object

Support the various file formats found in .ruby-version files.

3.2.2
ruby-3.2.2

Also supports .tool-versions files for asdf. Lines not starting with “ruby” are ignored.

ruby 2.5.1 # comment is ignored
ruby   2.5.1# close comment and extra spaces doesn't confuse

Intentionally does not support ‘3.2.1@gemset` since rvm recommends using .ruby-gemset instead

Loads the file relative to the dirname of the Gemfile itself.



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# File 'lib/bundler/ruby_dsl.rb', line 43

def normalize_ruby_file(filename)
  file_content = Bundler.read_file(gemfile.dirname.join(filename))
  # match "ruby-3.2.2", ruby = "3.2.2", ruby = '3.2.2' or "ruby   3.2.2" capturing version string up to the first space or comment
  version_match = /^               # Start of line
                  ruby             # Literal "ruby"
                  [\s-]*           # Optional whitespace or hyphens (for "ruby-3.2.2" format)
                  (?:=\s*)?        # Optional equals sign with whitespace (for ruby = "3.2.2" format)
                  (?:
                    "([^"]+)"      # Double quoted version
                    |
                    '([^']+)'      # Single quoted version
                    |
                    ([^\s#"']+)    # Unquoted version
                  )
                  /x.match(file_content)
  if version_match
    version_match[1] || version_match[2] || version_match[3]
  else
    file_content.strip
  end
rescue Errno::ENOENT
  raise GemfileError, "Could not find version file #{filename}"
end