Highline Wrapper

A little wrapper to help ask some easy questions via the command-line with Highline. The types of questions this wrapper supports is:

• Open-ended question
• Yes/No question
• Multiple choice question where the user is allowed to select one answer
• Multiple choice "checkbox" question where the user is allowed to select multiple answers

Installation

Add this line to your application's Gemfile:

gem 'highline_wrapper'

And then execute:

bundle install

Or install it yourself as:

gem install highline_wrapper

Usage

Once this gem is installed, you can then initiate a new HighlineWrapper object:

HighlineWrapper.new

Then, add this to the top of your file (or to your gem):

require 'highline_wrapper'

Then, you can call its questions to receive answers. There's several configuration options for each type of question. Look below for the different options for each type of question, and what they each return.

Open-ended questions

Question configuration options:

• default: defaults to ''
• indicate_default_message: defaults to true
• required: defaults to false
• secret: defaults to false

Notes:

• If default is '' and required is false, and the user skips the question, the answer will be ''
• If indicate_default_message is true, then the wrapper will tell us what the default value returned is if the user skips the question
  • If secret is true, then the wrapper may automatically add a newline after a skipped answer... this is automatic from HighLine and is, unfortunately, out of the wrapper's control
• If required is true, the question will repeat until the user answers the question
• If required is true, then the default value will be ignored (defaults to '', but could be set to whatever and the code won't care... the question is required)
• If secret is true, then the command-line will hide the user's answer behind *

Examples

> HighlineWrapper.new.ask('What is your favorite number?')
What is your favorite number?
four
=> "four"

> HighlineWrapper.new.ask('What is your favorite number?', {required: true})
What is your favorite number?

--- This question is required ---

What is your favorite number?

--- This question is required ---

What is your favorite number?

--- This question is required ---

What is your favorite number?
2
=> "2"

> HighlineWrapper.new.ask('What is your favorite number?', {required: true, indicate_default_message: false})
What is your favorite number?

--- This question is required ---

What is your favorite number?

--- This question is required ---

What is your favorite number?
5
=> "5"

> HighlineWrapper.new.ask('What is your favorite number?', {indicate_default_message: false})
What is your favorite number?

=> ""

> HighlineWrapper.new.ask('What is your favorite color?')
What is your favorite color?

--- Default selected: EMPTY ---

=> ""

> HighlineWrapper.new.ask('What is your favorite color?', {default: 'orange'})
What is your favorite color?

--- Default selected: orange ---

=> "orange"

> HighlineWrapper.new.ask('Please type your private token:', {secret: true})
Please type your private token?
****************
=> "MY-PRIVATE-TOKEN"

> HighlineWrapper.new.ask('Please type your private token:', {secret: true, indicate_default_message: false})
Please type your private token:

=> ""

> HighlineWrapper.new.ask('Please type your private token:', {secret: true, required: true})
Please type your private token:

--- This question is required ---

Please type your private token:

--- This question is required ---

Please type your private token:
****************
=> "MY-PRIVATE-TOKEN"

> HighlineWrapper.new.ask('Please type your private token:', {secret: true})
Please type your private token:

--- Default selected: HIDDEN ---
=> ""

Yes/No questions

Question configuration options:

• default: defaults to true (aka 'yes')
• indicate_default_message: defaults to true
• required: defaults to false

Notes:

• If default is true and required is false, and the user skips the question, the answer will be true
• If indicate_default_message is true, then the wrapper will tell us what the default value returned is if the user skips the question
• If required is true, the question will repeat until the user answers the question
• If required is true, then the default value will be ignored (defaults to true, but could be set to whatever and the code won't care... the question is required)
• The response to the question MUST be given either as y/n/yes/no or with any capitalization... anything else given as a response will be unparseable

Examples

> HighlineWrapper.new.ask_yes_no('Do you like Ruby?')
Do you like Ruby?

--- Default selected: YES ---

=> true

> HighlineWrapper.new.ask_yes_no('Do you like Ruby?', {indicate_default_message: false})
Do you like Ruby?
=> true

> HighlineWrapper.new.ask_yes_no('Do you like Ruby?')
Do you like Ruby?
no
=> false

> HighlineWrapper.new.ask_yes_no('Do you like Ruby?', {default: false})
Do you like Ruby?

--- Default selected: NO ---

=> false

> HighlineWrapper.new.ask_yes_no('Do you like Ruby?', {required: true})
Do you like Ruby?

--- This question is required ---

Do you like Ruby?

--- This question is required ---

Do you like Ruby?

--- This question is required ---

Do you like Ruby?
N
=> false

> HighlineWrapper.new.ask_yes_no('Do you like Ruby?')
Do you like Ruby?
uh-huh
--- This question is required ---

Do you like Ruby?
YES
=> true

> HighlineWrapper.new.ask_yes_no('Do you like Ruby?')
Do you like Ruby?
yep
--- This question is required ---

Do you like Ruby?
yes
=> true

Multiple choice questions

Question configuration options:

• default: defaults to nil
• indicate_default_message: defaults to true
• required: defaults to false
• with_index: defaults to false (particularly handy when there may be duplicate-named but different items in the list—think Sally with ID 45 and Sally with ID 72)

Notes:

• If default is nil and required is false, and the user skips the question, the answer will be nil
• If indicate_default_message is true, then the wrapper will tell us what the default value returned is if the user skips the question
• If required is true, the question will repeat until the user answers the question
• If required is true, then the default value will be ignored (defaults to nil, but could be set to whatever and the code won't care... the question is required)
• If with_index is true, a hash will be returned with the choice AND the index of the selection in the original choices array
  • e.g. { value: 'c', index: 2 }
• If with_index is false, then a hash of one item will be returned
  • e.g. { value: 'c' }

Examples

> HighlineWrapper.new.ask_multiple_choice('What is your favorite number of these?', ['one', 'two', 'three'])
What is your favorite number of these?
1. one
2. two
3. three
2
=> {:value=>"two"}

> HighlineWrapper.new.ask_multiple_choice('What is your favorite number of these?', ['one', 'two', 'three'], {with_index: true})
What is your favorite number of these?
1. one
2. two
3. three
2
=> {:value=>"two", :index=>1}

> HighlineWrapper.new.ask_multiple_choice('What is your favorite number of these?', ['one', 'two', 'three'], {default: 'three', required: true, indicate_default_message: false})
What is your favorite number of these?
1. one
2. two
3. three

--- This question is required ---

What is your favorite number of these?
1. one
2. two
3. three

--- This question is required ---

What is your favorite number of these?
1. one
2. two
3. three
2
=> {:value=>"two"}

> HighlineWrapper.new.ask_multiple_choice('What is your favorite number of these?', ['one', 'two', 'three'], {with_index: true, default: 'one'})
What is your favorite number of these?
1. one
2. two
3. three

--- Default selected: 1. one ---

=> {:value=>"one", :index=>0}

> HighlineWrapper.new.ask_multiple_choice('What is your favorite number of these?', ['one', 'two', 'three'], {with_index: true, default: 'one', indicate_default_message: false})
What is your favorite number of these?
1. one
2. two
3. three
=> {:value=>"one", :index=>0}

> HighlineWrapper.new.ask_multiple_choice('What is your favorite number of these?', ['one', 'two', 'three'], {default: 'three', required: true})
What is your favorite number of these?
1. one
2. two
3. three

--- This question is required ---

What is your favorite number of these?
1. one
2. two
3. three

--- This question is required ---

What is your favorite number of these?
1. one
2. two
3. three
1
=> {:value=>"one"}

> HighlineWrapper.new.ask_multiple_choice('What is your favorite number of these?', ['one', 'two', 'three'], {default: nil})
What is your favorite number of these?
1. one
2. two
3. three

--- Default selected: EMPTY ---

=> nil

>  HighlineWrapper.new.ask_multiple_choice('What is your favorite number of these?', ['one', 'two', 'three'], {default: nil, with_index: true})
What is your favorite number of these?
1. one
2. two
3. three

--- Default selected: EMPTY ---

=> nil

> HighlineWrapper.new.ask_multiple_choice('What is your favorite number of these?', ['one', 'two', 'three'], {default: nil, with_index: true, indicate_default_message: false})
What is your favorite number of these?
1. one
2. two
3. three

=> nil

Multiple choice "checkbox" questions

Question configuration options:

• defaults: defaults to []
• indicate_default_message: defaults to true
• required: defaults to false
• with_indexes: defaults to false (particularly handy when there may be duplicate-named but different items in the list—think Sally with ID 45 and Sally with ID 72)

Notes:

• If defaults is [] and required is false, then the method will return an empty array
• If indicate_default_message is true, then the wrapper will tell us what the default value returned is if the user skips the question
• If required is true, the question will repeat until the user answers the question
• If required is true, then the defaults value will be ignored (this value is defaulting to [], but could be set to whatever and the code won't care... the question is required)
• If with_indexes is true, an array of hashes will be returned with the choice AND the index (of the selection in the original choices array) in each hash
  • e.g. [{ value: 'a', index: 0 }, { value: 'c', index: 2 }]
• If with_indexes is false, then an hashes will be returned where each hash only has a value
  • e.g. [{ value: 'a' }, { value: 'c' }]

Examples

> HighlineWrapper.new.ask_checkbox("What are your favorite numbers of these?", ['one', 'two','three'])
What are your favorite numbers of these?
1. one
2. two
3. three
1, 3
=> [{:value=>"one"}, {:value=>"three"}]

> HighlineWrapper.new.ask_checkbox("What are your favorite numbers of these?", ['one', 'two','three'], {with_indexes: true})
What are your favorite numbers of these?
1. one
2. two
3. three
1, 3
=> [{:value=>"one", :index=>0}, {:value=>"three", :index=>2}]

> HighlineWrapper.new.ask_checkbox("What are your favorite numbers of these?", ['one', 'two','three'], {with_indexes: true, indicate_default_message: false})
What are your favorite numbers of these?
1. one
2. two
3. three

=> []

> HighlineWrapper.new.ask_checkbox("What are your favorite numbers of these?", ['one', 'two','three'], {with_indexes: true})
What are your favorite numbers of these?
1. one
2. two
3. three

--- Defaults selected: EMPTY ---

=> []

> HighlineWrapper.new.ask_checkbox("What are your favorite numbers of these?", ['one', 'two','three'], {defaults: ['two', 'three']})
What are your favorite numbers of these?
1. one
2. two
3. three

--- Defaults selected: 2. two, 3. three ---

=> [{:value=>"two"}, {:value=>"three"}]

> HighlineWrapper.new.ask_checkbox("What are your favorite numbers of these?", ['one', 'two','three'], {required: true, with_indexes: true})
What are your favorite numbers of these?
1. one
2. two
3. three

--- This question is required ---

What are your favorite numbers of these?
1. one
2. two
3. three

--- This question is required ---

What are your favorite numbers of these?
1. one
2. two
3. three
2
=> [{:value=>"two", :index=>1}]

> HighlineWrapper.new.ask_checkbox("What are your favorite numbers of these?", ['one', 'two','three'], {required: true, with_indexes: false})
What are your favorite numbers of these?
1. one
2. two
3. three

--- This question is required ---

What are your favorite numbers of these?
1. one
2. two
3. three
1
=> [{:value=>"one"}]

> HighlineWrapper.new.ask_checkbox("What are your favorite numbers of these?", ['one', 'two','three'], {defaults: ['two', 'three'], with_indexes: true, indicate_default_message: false})
What are your favorite numbers of these?
1. one
2. two
3. three

=> [{:value=>"two", :index=>1}, {:value=>"three", :index=>2}]

Tests

To run the tests, run bundle exec rspec from the command-line. GitHub Actions will also run the tests upon every commit to make sure they're up to date and that everything is working correctly. Locally, you can also run bundle exec guard to automatically run tests as you develop!

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Contributing

To submit a feature request, bug ticket, etc, please submit an official GitHub issue. To copy or make changes, please fork this repository. When/if you'd like to contribute back to this upstream, please create a pull request on this repository.

Please follow included Issue Template(s) and Pull Request Template(s) when creating issues or pull requests.

Security Policy

To report any security vulnerabilities, please view this repository's Security Policy.

Licensing

For information on licensing, please see LICENSE.md.

Code of Conduct

When interacting with this repository, please follow Contributor Covenant's Code of Conduct.

Releasing

To make a new release of this gem:

1. Merge the pull request via the big green button
2. Run git tag vX.X.X and git push --tag
3. Make a new release here
4. Run gem build *.gemspec
5. Run gem push *.gem to push the new gem to RubyGems
6. Run rm *.gem to clean up your local repository

To set up your local machine to push to RubyGems via the API, see the RubyGems documentation.