Sourced fromcommander's releases.

v5.0.0

Added

• support for nested commands with action-handlers (#1#764#1149)
• .addCommand() for adding a separately configured command (#764#1149)
• allow a non-executable to be set as the default command (#742#1149)
• implicit help command when there are subcommands (previously only if executables) (#1149)
• customise implicit help command with.addHelpCommand() (#1149)
• display error message for unknown subcommand, by default (#432#1088#1149)
• display help for missing subcommand, by default (#1088#1149)
• combined short options as single argument may include boolean flags and value flag and value (e.g.-a -b -p 80 can be written as-abp80) (#1145)
• .parseOption() includes short flag and long flag expansions (#1145)
• .helpInformation() returns help text as a string, previously a private routine (#1169)
• .parse() implicitly usesprocess.argv if arguments not specified (#1172)
• optionally specify where.parse() arguments "from", if not following node conventions (#512#1172)
• suggest help option along with unknown command error (#1179)
• TypeScript definition forcommands property ofCommand (#1184)
• exportprogram property (#1195)
• createCommand factory method to simplify subclassing (#1191)

Fixed

• preserve argument order in subcommands (#508#962#1138)
• do not emitcommand:* for executable subcommands (#809#1149)
• action handler called whether or not there are non-option arguments (#1062#1149)
• combining option short flag and value in single argument now works for subcommands (#1145)
• only add implicit help command when it will not conflict with other uses of argument (#1153#1149)
• implicit help command works with command aliases (#948#1149)
• options are validated whether or not there is an action handler (#1149)

Changed

• Breaking.args contains command arguments with just recognised options removed (#1032#1138)
• Breaking display error if required argument for command is missing (#995#1149)
• tighten TypeScript definition of custom option processing function passed to.option() (#1119)
• Breaking.allowUnknownOption() (#802#1138)
  • unknown options included in arguments passed to command action handler
  • unknown options included in.args
• only recognised option short flags and long flags are expanded (e.g.-ab or--foo=bar) (#1145)
• Breaking.parseOptions() (#1138)
  • args in returned result renamedoperands and does not include anything after first unknown option
  • unknown in returned result has arguments after first unknown option including operands, not just options and values
• Breaking.on('command:*', callback) and other command events passed (changed) results from.parseOptions, i.e. operands and unknown (#1138)
• refactor Option from prototype to class (#1133)
• refactor Command from prototype to class (#1159)
• changes to error handling (#1165)
  • throw for author error, not just display message
  • preflight for variadic error
  • add tips to missing subcommand executable
• TypeScript fluent return types changed to be more subclass friendly, returnthis rather thanCommand (#1180)

... (truncated)

Sourced fromcommander's changelog.

[5.0.0] (2020-03-14)

Added

• support for nested commands with action-handlers (#1#764#1149)
• .addCommand() for adding a separately configured command (#764#1149)
• allow a non-executable to be set as the default command (#742#1149)
• implicit help command when there are subcommands (previously only if executables) (#1149)
• customise implicit help command with.addHelpCommand() (#1149)
• display error message for unknown subcommand, by default (#432#1088#1149)
• display help for missing subcommand, by default (#1088#1149)
• combined short options as single argument may include boolean flags and value flag and value (e.g.-a -b -p 80 can be written as-abp80) (#1145)
• .parseOption() includes short flag and long flag expansions (#1145)
• .helpInformation() returns help text as a string, previously a private routine (#1169)
• .parse() implicitly usesprocess.argv if arguments not specified (#1172)
• optionally specify where.parse() arguments "from", if not following node conventions (#512#1172)
• suggest help option along with unknown command error (#1179)
• TypeScript definition forcommands property ofCommand (#1184)
• exportprogram property (#1195)
• createCommand factory method to simplify subclassing (#1191)

Fixed

• preserve argument order in subcommands (#508#962#1138)
• do not emitcommand:* for executable subcommands (#809#1149)
• action handler called whether or not there are non-option arguments (#1062#1149)
• combining option short flag and value in single argument now works for subcommands (#1145)
• only add implicit help command when it will not conflict with other uses of argument (#1153#1149)
• implicit help command works with command aliases (#948#1149)
• options are validated whether or not there is an action handler (#1149)

Changed

• Breaking.args contains command arguments with just recognised options removed (#1032#1138)
• Breaking display error if required argument for command is missing (#995#1149)
• tighten TypeScript definition of custom option processing function passed to.option() (#1119)
• Breaking.allowUnknownOption() (#802#1138)
  • unknown options included in arguments passed to command action handler
  • unknown options included in.args
• only recognised option short flags and long flags are expanded (e.g.-ab or--foo=bar) (#1145)
• Breaking.parseOptions() (#1138)
  • args in returned result renamedoperands and does not include anything after first unknown option
  • unknown in returned result has arguments after first unknown option including operands, not just options and values
• Breaking.on('command:*', callback) and other command events passed (changed) results from.parseOptions, i.e. operands and unknown (#1138)
• refactor Option from prototype to class (#1133)
• refactor Command from prototype to class (#1159)
• changes to error handling (#1165)
  • throw for author error, not just display message
  • preflight for variadic error
  • add tips to missing subcommand executable

... (truncated)

• 2aad525 Update dependencies (#1214)
• f86d878 Add cli keyword (#1213)
• 83af0fd Prepare for 5.0.0 (#1211)
• f14df07 Add eslint settings for TypeScript (#1205)
• 95e0d19 5.0.0-4
• bd5a49e Add factory to CHANGELOG
• 8c3dd6f createCommand factory routine (#1191)
• 3c9f33f Say we support LTS, so do not need to update when node changes (#1204)
• 3cf8cff Expand typescript checks (#1198)
• a3f453f 5.0.0-3
• Additional commits viewable incompare view

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