Merge branch 'master' into release/10.x

CHANGELOG.md

@@ -8,6 +8,13 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 <!-- markdownlint-disable MD024 -->
 <!-- markdownlint-disable MD004 -->
 
+## [9.5.0] (2023-01-07)
+
+### Added
+
+- `.getOptionValueSourceWithGlobals()` ([#1832])
+- `showGlobalOptions` for `.configureHelp{}` and `Help` ([#1828])
+
 ## [9.4.1] (2022-09-30)
 
 ### Fixed
@@ -93,8 +100,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - use command name as prefix for subcommand stand-alone executable name (with fallback to script name for backwards compatibility) ([#1571])
 - allow absolute path with `executableFile` ([#1571])
 - removed restriction that nested subcommands must specify `executableFile` ([#1571])
-- TypeScript: allow passing readonly string array to `.choices()` [(#1667)]
-- TypeScript: allow passing readonly string array to `.parse()`, `.parseAsync()`, `.aliases()` [(#1669)]
+- TypeScript: allow passing readonly string array to `.choices()` ([#1667])
+- TypeScript: allow passing readonly string array to `.parse()`, `.parseAsync()`, `.aliases()` ([#1669])
 
 ### Fixed
 
@@ -104,7 +111,6 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 - *Breaking:* removed internal fallback to `require.main.filename` when script not known from arguments passed to `.parse()` (can supply details using `.name()`, and `.executableDir()` or `executableFile`) ([#1571])
 
-
 ## [9.0.0-1] (2022-01-15)
 
 (Released in 9.0.0)
@@ -286,8 +292,8 @@ program.showHelpAfterError();
 ### Changed
 
 - *Breaking:* options are stored safely by default, not as properties on the command ([#1409])
-    - this especially affects accessing options on program, use `program.opts()`
-    - revert behaviour with `.storeOptionsAsProperties()`
+  - this especially affects accessing options on program, use `program.opts()`
+  - revert behaviour with `.storeOptionsAsProperties()`
 - *Breaking:* action handlers are passed options and command separately ([#1409])
 - deprecated callback parameter to `.help()` and `.outputHelp()` (removed from README) ([#1296])
 - *Breaking:* errors now displayed using `process.stderr.write()` instead of `console.error()`
@@ -306,9 +312,9 @@ program.showHelpAfterError();
 ### Deleted
 
 - *Breaking:* `.passCommandToAction()` ([#1409])
-    - no longer needed as action handler is passed options and command
+  - no longer needed as action handler is passed options and command
 - *Breaking:* "extra arguments" parameter to action handler ([#1409])
-    - if being used to detect excess arguments, there is now an error available by setting `.allowExcessArguments(false)`
+  - if being used to detect excess arguments, there is now an error available by setting `.allowExcessArguments(false)`
 
 ### Migration Tips
 
@@ -393,7 +399,7 @@ program
 
 ### Fixed
 
-- some tests failed if directory path included a space ([1390])
+- some tests failed if directory path included a space ([#1390])
 
 ## [6.2.0] (2020-10-25)
 
@@ -1065,6 +1071,7 @@ program
 [#1490]: https://github.com/tj/commander.js/pull/1490
 [#1497]: https://github.com/tj/commander.js/pull/1497
 [#1500]: https://github.com/tj/commander.js/pull/1500
+[#1502]: https://github.com/tj/commander.js/pull/1502
 [#1508]: https://github.com/tj/commander.js/pull/1508
 [#1513]: https://github.com/tj/commander.js/pull/1513
 [#1514]: https://github.com/tj/commander.js/pull/1514
@@ -1109,6 +1116,8 @@ program
 [#1767]: https://github.com/tj/commander.js/pull/1767
 [#1794]: https://github.com/tj/commander.js/pull/1794
 [#1795]: https://github.com/tj/commander.js/pull/1795
+[#1832]: https://github.com/tj/commander.js/pull/1832
+[#1828]: https://github.com/tj/commander.js/pull/1828
 
 <!-- Referenced in 5.x -->
 [#1]: https://github.com/tj/commander.js/issues/1
@@ -1149,6 +1158,7 @@ program
 [#1248]: https://github.com/tj/commander.js/pull/1248
 
 <!-- Referenced in 4.x -->
+[#933]: https://github.com/tj/commander.js/pull/933
 [#1027]: https://github.com/tj/commander.js/pull/1027
 [#1035]: https://github.com/tj/commander.js/pull/1035
 [#1040]: https://github.com/tj/commander.js/pull/1040
@@ -1187,6 +1197,7 @@ program
 [#1028]: https://github.com/tj/commander.js/pull/1028
 
 [Unreleased]: https://github.com/tj/commander.js/compare/master...develop
+[9.5.0]: https://github.com/tj/commander.js/compare/v9.4.1...v9.5.0
 [9.4.1]: https://github.com/tj/commander.js/compare/v9.4.0...v9.4.1
 [9.4.0]: https://github.com/tj/commander.js/compare/v9.3.0...v9.4.0
 [9.3.0]: https://github.com/tj/commander.js/compare/v9.2.0...v9.3.0

Readme.md

@@ -543,6 +543,8 @@ Configuration options can be passed with the call to `.command()` and `.addComma
 remove the command from the generated help output. Specifying `isDefault: true` will run the subcommand if no other
 subcommand is specified ([example](./examples/defaultCommand.js)).
 
+You can add alternative names for a command with `.alias()`. ([example](./examples/alias.js))
+
 For safety, `.addCommand()` does not automatically copy the inherited settings from the parent command. There is a helper routine `.copyInheritedSettings()` for copying the settings when they are wanted.
 
 ### Command-arguments
@@ -915,6 +917,7 @@ The data properties are:
 - `helpWidth`: specify the wrap width, useful for unit tests
 - `sortSubcommands`: sort the subcommands alphabetically
 - `sortOptions`: sort the options alphabetically
+- `showGlobalOptions`: show a section with the global options from the parent command(s)
 
 There are methods getting the visible lists of arguments, options, and subcommands. There are methods for formatting the items in the lists, with each item having a _term_ and _description_. Take a look at `.formatHelp()` to see how they are used.
 

examples/alias.js

@@ -0,0 +1,37 @@
+#!/usr/bin/env node
+
+// This example shows giving alternative names for a command.
+
+// const { Command } = require('commander'); // (normal include)
+const { Command } = require('../'); // include commander in git clone of commander repo
+const program = new Command();
+
+program
+  .command('exec')
+  .argument('<script>')
+  .alias('ex')
+  .action((script) => {
+    console.log(`execute: ${script}`);
+  });
+
+program
+  .command('print')
+  .argument('<file>')
+  // Multiple aliases is unusual but supported! You can call alias multiple times,
+  // and/or add multiple aliases at once. Only the first alias is displayed in the help.
+  .alias('p')
+  .alias('pr')
+  .aliases(['display', 'show'])
+  .action((file) => {
+    console.log(`print: ${file}`);
+  });
+
+program.parse();
+
+// Try the following:
+//    node alias.js --help
+//    node alias.js exec script
+//    node alias.js ex script
+//    node alias.js print file
+//    node alias.js pr file
+//    node alias.js show file

examples/global-options.js → examples/global-options-added.js

@@ -7,7 +7,7 @@
 // The code in this example assumes there is just one level of subcommands.
 //
 // (A different pattern for a "global" option is to add it to the root command, rather
-// than to the subcommand. That is not shown here.)
+// than to the subcommand. See global-options-nested.js.)
 
 // const { Command } = require('commander'); // (normal include)
 const { Command } = require('../'); // include commander in git clone of commander repo
@@ -45,7 +45,7 @@ program.commands.forEach((cmd) => {
 program.parse();
 
 // Try the following:
-//    node common-options.js --help
-//    node common-options.js print --help
-//    node common-options.js serve --help
-//    node common-options.js serve --debug --verbose
+//    node global-options-added.js --help
+//    node global-options-added.js print --help
+//    node global-options-added.js serve --help
+//    node global-options-added.js serve --debug --verbose

examples/global-options-nested.js

@@ -0,0 +1,32 @@
+#!/usr/bin/env node
+
+// This example shows global options on the program which affect all the subcommands.
+// See how to work with global options in the subcommand and display them in the help.
+//
+// (A different pattern for a "global" option is to add it to the subcommands, rather
+// than to the program. See global-options-added.js.)
+
+// const { Command } = require('commander'); // (normal include)
+const { Command } = require('../'); // include commander in git clone of commander repo
+
+const program = new Command();
+
+program
+  .configureHelp({ showGlobalOptions: true })
+  .option('-g, --global');
+
+program
+  .command('sub')
+  .option('-l, --local')
+  .action((options, cmd) => {
+    console.log({
+      opts: cmd.opts(),
+      optsWithGlobals: cmd.optsWithGlobals()
+    });
+  });
+
+program.parse();
+
+// Try the following:
+//    node global-options-nested.js --global sub --local
+//    node global-options-nested.js sub --help

lib/command.js

@@ -814,6 +814,25 @@ Expecting one of '${allowedValues.join("', '")}'`);
     return this._optionValueSources[key];
   }
 
+  /**
+    * Get source of option value. See also .optsWithGlobals().
+    * Expected values are default | config | env | cli | implied
+    *
+    * @param {string} key
+    * @return {string}
+    */
+
+  getOptionValueSourceWithGlobals(key) {
+    // global overwrites local, like optsWithGlobals
+    let source;
+    getCommandAndParents(this).forEach((cmd) => {
+      if (cmd.getOptionValueSource(key) !== undefined) {
+        source = cmd.getOptionValueSource(key);
+      }
+    });
+    return source;
+  }
+
   /**
    * Get user arguments from implied or explicit arguments.
    * Side-effects: set _scriptPath if args included script. Used for default program name, and subcommand searches.

lib/help.js

@@ -16,6 +16,7 @@ class Help {
     this.helpWidth = undefined;
     this.sortSubcommands = false;
     this.sortOptions = false;
+    this.showGlobalOptions = false;
   }
 
   /**
@@ -45,6 +46,21 @@ class Help {
     return visibleCommands;
   }
 
+  /**
+   * Compare options for sort.
+   *
+   * @param {Option} a
+   * @param {Option} b
+   * @returns number
+   */
+  compareOptions(a, b) {
+    const getSortKey = (option) => {
+      // WYSIWYG for order displayed in help. Short used for comparison if present. No special handling for negated.
+      return option.short ? option.short.replace(/^-/, '') : option.long.replace(/^--/, '');
+    };
+    return getSortKey(a).localeCompare(getSortKey(b));
+  }
+
   /**
    * Get an array of the visible options. Includes a placeholder for the implicit help option, if there is one.
    *
@@ -69,17 +85,32 @@ class Help {
       visibleOptions.push(helpOption);
     }
     if (this.sortOptions) {
-      const getSortKey = (option) => {
-        // WYSIWYG for order displayed in help with short before long, no special handling for negated.
-        return option.short ? option.short.replace(/^-/, '') : option.long.replace(/^--/, '');
-      };
-      visibleOptions.sort((a, b) => {
-        return getSortKey(a).localeCompare(getSortKey(b));
-      });
+      visibleOptions.sort(this.compareOptions);
     }
     return visibleOptions;
   }
 
+  /**
+   * Get an array of the visible global options. (Not including help.)
+   *
+   * @param {Command} cmd
+   * @returns {Option[]}
+   */
+
+  visibleGlobalOptions(cmd) {
+    if (!this.showGlobalOptions) return [];
+
+    const globalOptions = [];
+    for (let parentCmd = cmd.parent; parentCmd; parentCmd = parentCmd.parent) {
+      const visibleOptions = parentCmd.options.filter((option) => !option.hidden);
+      globalOptions.push(...visibleOptions);
+    }
+    if (this.sortOptions) {
+      globalOptions.sort(this.compareOptions);
+    }
+    return globalOptions;
+  }
+
   /**
    * Get an array of the arguments if any have a description.
    *
@@ -168,6 +199,20 @@ class Help {
     }, 0);
   }
 
+  /**
+   * Get the longest global option term length.
+   *
+   * @param {Command} cmd
+   * @param {Help} helper
+   * @returns {number}
+   */
+
+  longestGlobalOptionTermLength(cmd, helper) {
+    return helper.visibleGlobalOptions(cmd).reduce((max, option) => {
+      return Math.max(max, helper.optionTerm(option).length);
+    }, 0);
+  }
+
   /**
    * Get the longest argument term length.
    *
@@ -341,6 +386,15 @@ class Help {
       output = output.concat(['Options:', formatList(optionList), '']);
     }
 
+    if (this.showGlobalOptions) {
+      const globalOptionList = helper.visibleGlobalOptions(cmd).map((option) => {
+        return formatItem(helper.optionTerm(option), helper.optionDescription(option));
+      });
+      if (globalOptionList.length > 0) {
+        output = output.concat(['Global Options:', formatList(globalOptionList), '']);
+      }
+    }
+
     // Commands
     const commandList = helper.visibleCommands(cmd).map((cmd) => {
       return formatItem(helper.subcommandTerm(cmd), helper.subcommandDescription(cmd));
@@ -363,6 +417,7 @@ class Help {
   padWidth(cmd, helper) {
     return Math.max(
       helper.longestOptionTermLength(cmd, helper),
+      helper.longestGlobalOptionTermLength(cmd, helper),
       helper.longestSubcommandTermLength(cmd, helper),
       helper.longestArgumentTermLength(cmd, helper)
     );