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Refactor getCommandAndParents() into Command._getCommandAndAncestors() and use consistently #1939

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merged 3 commits into from
Aug 19, 2023
Merged

Refactor getCommandAndParents() into Command._getCommandAndAncestors() and use consistently #1939

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2005522
Introduce _getCommandAndAncestors()
aweebit Aug 5, 2023
da5a499
Use _getCommandAndAncestors() consistently
aweebit Aug 5, 2023
8b11122
Use _getCommandAndAncestors() less aggressively
aweebit Aug 10, 2023
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52 changes: 25 additions & 27 deletions lib/command.js
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Original file line number Diff line number Diff line change
Expand Up @@ -109,6 +109,19 @@ class Command extends EventEmitter {
return this;
}

/**
* @returns {Command[]}
* @api private
*/

_getCommandAndAncestors() {
const result = [];
for (let command = this; command; command = command.parent) {
result.push(command);
}
return result;
}

/**
* Define a command.
*
Expand Down Expand Up @@ -825,7 +838,7 @@ Expecting one of '${allowedValues.join("', '")}'`);
getOptionValueSourceWithGlobals(key) {
// global overwrites local, like optsWithGlobals
let source;
getCommandAndParents(this).forEach((cmd) => {
this._getCommandAndAncestors().forEach((cmd) => {
if (cmd.getOptionValueSource(key) !== undefined) {
source = cmd.getOptionValueSource(key);
}
Expand Down Expand Up @@ -1208,7 +1221,7 @@ Expecting one of '${allowedValues.join("', '")}'`);
_chainOrCallHooks(promise, event) {
let result = promise;
const hooks = [];
getCommandAndParents(this)
this._getCommandAndAncestors()
.reverse()
.filter(cmd => cmd._lifeCycleHooks[event] !== undefined)
.forEach(hookedCommand => {
Expand Down Expand Up @@ -1365,13 +1378,13 @@ Expecting one of '${allowedValues.join("', '")}'`);

_checkForMissingMandatoryOptions() {
// Walk up hierarchy so can call in subcommand after checking for displaying help.
for (let cmd = this; cmd; cmd = cmd.parent) {
this._getCommandAndAncestors().forEach((cmd) => {
cmd.options.forEach((anOption) => {
if (anOption.mandatory && (cmd.getOptionValue(anOption.attributeName()) === undefined)) {
cmd.missingMandatoryOptionValue(anOption);
}
});
}
});
}

/**
Expand Down Expand Up @@ -1412,9 +1425,9 @@ Expecting one of '${allowedValues.join("', '")}'`);
*/
_checkForConflictingOptions() {
// Walk up hierarchy so can call in subcommand after checking for displaying help.
for (let cmd = this; cmd; cmd = cmd.parent) {
this._getCommandAndAncestors().forEach((cmd) => {
cmd._checkForConflictingLocalOptions();
}
});
}

/**
Expand Down Expand Up @@ -1577,7 +1590,7 @@ Expecting one of '${allowedValues.join("', '")}'`);
*/
optsWithGlobals() {
// globals overwrite locals
return getCommandAndParents(this).reduce(
return this._getCommandAndAncestors().reduce(
(combinedOptions, cmd) => Object.assign(combinedOptions, cmd.opts()),
{}
);
Expand Down Expand Up @@ -1743,14 +1756,13 @@ Expecting one of '${allowedValues.join("', '")}'`);
if (flag.startsWith('--') && this._showSuggestionAfterError) {
// Looping to pick up the global options too
let candidateFlags = [];
let command = this;
do {
for (const command of this._getCommandAndAncestors()) {
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Can this be a forEach? (I don't like the for ( of ).

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Could be if not for the early exit that is impossible with forEach. I guess this is one of the cases where iterating manually via .parent is more appropriate.

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👍

const moreFlags = command.createHelp().visibleOptions(command)
.filter(option => option.long)
.map(option => option.long);
candidateFlags = candidateFlags.concat(moreFlags);
command = command.parent;
} while (command && !command._enablePositionalOptions);
if (command._enablePositionalOptions) break;
}
suggestion = suggestSimilar(flag, candidateFlags);
}

Expand Down Expand Up @@ -2022,7 +2034,7 @@ Expecting one of '${allowedValues.join("', '")}'`);
}
const context = this._getHelpContext(contextOptions);

getCommandAndParents(this).reverse().forEach(command => command.emit('beforeAllHelp', context));
this._getCommandAndAncestors().reverse().forEach(command => command.emit('beforeAllHelp', context));
this.emit('beforeHelp', context);

let helpInformation = this.helpInformation(context);
Expand All @@ -2036,7 +2048,7 @@ Expecting one of '${allowedValues.join("', '")}'`);

this.emit(this._helpLongFlag); // deprecated
this.emit('afterHelp', context);
getCommandAndParents(this).forEach(command => command.emit('afterAllHelp', context));
this._getCommandAndAncestors().forEach(command => command.emit('afterAllHelp', context));
}

/**
Expand Down Expand Up @@ -2179,18 +2191,4 @@ function incrementNodeInspectorPort(args) {
});
}

/**
* @param {Command} startCommand
* @returns {Command[]}
* @api private
*/

function getCommandAndParents(startCommand) {
const result = [];
for (let command = startCommand; command; command = command.parent) {
result.push(command);
}
return result;
}

exports.Command = Command;
16 changes: 8 additions & 8 deletions lib/help.js
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Original file line number Diff line number Diff line change
Expand Up @@ -101,10 +101,10 @@ class Help {
if (!this.showGlobalOptions) return [];

const globalOptions = [];
for (let parentCmd = cmd.parent; parentCmd; parentCmd = parentCmd.parent) {
const visibleOptions = parentCmd.options.filter((option) => !option.hidden);
cmd._getCommandAndAncestors().slice(1).forEach((ancestorCmd) => {
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No. Having to use the slice makes this too subtle for my liking.

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@shadowspawn shadowspawn Aug 9, 2023 •
edited
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(Ok with the active variable changing to ancestorCmd though.)

const visibleOptions = ancestorCmd.options.filter((option) => !option.hidden);
globalOptions.push(...visibleOptions);
}
});
if (this.sortOptions) {
globalOptions.sort(this.compareOptions);
}
Expand Down Expand Up @@ -240,11 +240,11 @@ class Help {
if (cmd._aliases[0]) {
cmdName = cmdName + '|' + cmd._aliases[0];
}
let parentCmdNames = '';
for (let parentCmd = cmd.parent; parentCmd; parentCmd = parentCmd.parent) {
parentCmdNames = parentCmd.name() + ' ' + parentCmdNames;
}
return parentCmdNames + cmdName + ' ' + cmd.usage();
let ancestorCmdNames = '';
cmd._getCommandAndAncestors().slice(1).forEach((ancestorCmd) => {
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@shadowspawn shadowspawn Aug 9, 2023 •
edited
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No. Having to use the slice makes this too subtle for my liking.
Ok with the active variables changing to ancestorX though.

ancestorCmdNames = ancestorCmd.name() + ' ' + ancestorCmdNames;
});
return ancestorCmdNames + cmdName + ' ' + cmd.usage();
}

/**
Expand Down