Update dependency commander to v4

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
commander	2.20.3 → 4.1.1

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Release Notes

tj/commander.js (commander)

v4.1.1

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Fixed

• TypeScript definition for .action() should include Promise for async ([#​1157])

v4.1.0

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Added

• two routines to change how option values are handled, and eliminate name clashes with command properties ([#​933] [#​1102])
  • see storeOptionsAsProperties and passCommandToAction in README
• .parseAsync to use instead of .parse if supply async action handlers ([#​806] [#​1118])

Fixed

• Remove trailing blanks from wrapped help text ([#​1096])

Changed

• update dependencies
• extend security coverage for Commander 2.x to 2020-02-03
• improvements to README
• improvements to TypeScript definition documentation
• move old versions out of main CHANGELOG
• removed explicit use of ts-node in tests

v4.0.1

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Fixed

• broken markdown link in README ([#​2369])

Changed

• improve code readability by using optional chaining ([#​2394])
• use more idiomatic code with object spread instead of Object.assign() ([#​2395])
• improve code readability using string.endsWith() instead of string.slice() ([#​2396])
• refactor .parseOptions() to process args array in-place ([#​2409])
• change private variadic support routines from ._concatValue() to ._collectValue() (change code from array.concat() to array.push()) ([#​2410])
• update (dev) dependencies

v4.0.0

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Added

• support for groups of options and commands in the help using low-level .helpGroup() on Option and Command, and higher-level .optionsGroup() and .commandsGroup() which can be used in chaining way to specify group title for following options/commands ([#​2328])
• support for unescaped negative numbers as option-arguments and command-arguments ([#​2339])
• TypeScript: add parseArg property to Argument class ([#​2359])

Fixed

• remove bogus leading space in help when option has default value but not a description ([#​2348])
• .configureOutput() now makes copy of settings instead of modifying in-place, fixing side-effects ([#​2350])

Changed

• Breaking: Commander 14 requires Node.js v20 or higher
• internal refactor of Help class adding .formatItemList() and .groupItems() methods ([#​2328])

v3.0.2

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Fixed

• Improve tracking of executable subcommands.

Changed

• update development dependencies

v3.0.1

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Added

• .name and .usage to README ([#​1010])
• Table of Contents to README ([#​1010])
• TypeScript definition for executableFile in CommandOptions ([#​1028])

Changed

• consistently use const rather than var in README ([#​1026])

Fixed

• help for sub commands with custom executableFile ([#​1018])

v3.0.0

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Added

• support multiple calls to .parse() with default settings ([#​2299])
• add .saveStateBeforeParse() and .restoreStateBeforeParse() for use by subclasses ([#​2299])
• style routines like styleTitle() to add color to help using .configureHelp() or Help subclass ([#​2251])
• color related support in .configureOutput() for getOutHasColors(), getErrHasColors(), and stripColor() ([#​2251])
• Help property for minWidthToWrap ([#​2251])
• Help methods for displayWidth(), boxWrap(), preformatted() et al ([#​2251])

Changed

• Breaking: excess command-arguments cause an error by default, see migration tips ([#​2223])
• Breaking: throw during Option construction for unsupported option flags, like multiple characters after single - ([#​2270])
  • note: support for dual long option flags added in Commander 13.1
• Breaking: throw on multiple calls to .parse() if storeOptionsAsProperties: true ([#​2299])
• TypeScript: include implicit this in parameters for action handler callback ([#​2197])

Deleted

• Breaking: Help.wrap() refactored into formatItem() and boxWrap() ([#​2251])

Migration Tips

Excess command-arguments

It is now an error for the user to specify more command-arguments than are expected. (allowExcessArguments is now false by default.)

Old code:

program.option('-p, --port <number>', 'port number');
program.action((options) => {
  console.log(program.args);
});

Now shows an error:

$ node example.js a b c
error: too many arguments. Expected 0 arguments but got 3.

You can declare the expected arguments. The help will then be more accurate too. Note that declaring
new arguments will change what is passed to the action handler.

program.option('-p, --port <number>', 'port number');
program.argument('[args...]', 'remote command and arguments'); // expecting zero or more arguments
program.action((args, options) => {
  console.log(args);
});

Or you could suppress the error, useful for minimising changes in legacy code.

program.option('-p, --port', 'port number');
program.allowExcessArguments();
program.action((options) => {
  console.log(program.args);
});

Stricter option flag parsing

Commander now throws an error for option flag combinations that are not supported.
In particular, a short flag with multiple characters is now an error.

program.option('-ws, --workspace'); // throws error

A short option has a single character:

program.option('-w, --workspace');

Or from Commander 13.1 you can have an extra long flag instead of a short flag to allow a more memorable shortcut for the full name:

program.option('--ws, --workspace');

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