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Did you mean flag #6316

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Did you mean flag #6316

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cc52bb0
Implement 'With crystal foo.cr --flag, when --flag isn't found, menti…
Jun 30, 2018
baa2471
Fix bug
Jun 30, 2018
44ba5d9
Fix test bug
Jul 2, 2018
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3 changes: 2 additions & 1 deletion spec/std/option_parser_spec.cr
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Expand Up @@ -215,7 +215,8 @@ describe "OptionParser" do
end

it "raises on invalid option" do
expect_raises OptionParser::InvalidOption, "Invalid option: -j" do
suggestion = "(did you mean 'crystal foo.cr -- -j'?)".colorize.yellow.bold
expect_raises OptionParser::InvalidOption, "Invalid option: -j #{suggestion}" do
OptionParser.parse(["-f", "-j"]) do |opts|
opts.on("-f", "some flag") { }
end
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6 changes: 5 additions & 1 deletion src/option_parser.cr
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Expand Up @@ -29,13 +29,17 @@
# destination = destination.upcase if upcase
# puts "Hello #{destination}!"
# ```

require "colorize"

class OptionParser
class Exception < ::Exception
end

class InvalidOption < Exception
def initialize(option)
super("Invalid option: #{option}")
suggestion = "(did you mean 'crystal foo.cr -- #{option}')".colorize.yellow.bold
super("Invalid option: #{option} #{suggestion}")
end
end

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