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David Herman
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Nov 27, 2023
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| import commandLineArgs from 'command-line-args'; | ||
| import { Command, CommandDetail, CommandSection } from '../command.js'; | ||
| import { assertIsTargetPreset, expandTargetPreset, TargetPreset } from '../target.js'; | ||
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| const OPTIONS = [ | ||
| { name: 'pretty', alias: 'p', type: Boolean, defaultValue: false }, | ||
| { name: 'verbose', alias: 'v', type: Boolean, defaultValue: false } | ||
| ]; | ||
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| export default class Preset implements Command { | ||
| static summary(): string { return 'Display the target JSON data for a given preset.'; } | ||
| static syntax(): string { return 'neon preset [-p] [-v] <preset>'; } | ||
| static options(): CommandDetail[] { | ||
| return [ | ||
| { name: '<preset>', summary: 'The target family preset to look up.' }, | ||
| { name: '-p, --pretty', summary: 'Pretty-print the JSON output. (Default: false)' }, | ||
| { name: '-v, --verbose', summary: 'Enable verbose logging. (Default: false)' } | ||
| ]; | ||
| } | ||
| static seeAlso(): CommandDetail[] | void { } | ||
| static extraSection(): CommandSection | void { } | ||
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| private _pretty: boolean; | ||
| private _verbose: boolean; | ||
| private _preset: TargetPreset; | ||
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| constructor(argv: string[]) { | ||
| const options = commandLineArgs(OPTIONS, { argv, partial: true }); | ||
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| this._pretty = options.pretty || false; | ||
| this._verbose = !!options.verbose; | ||
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| if (!options._unknown || options._unknown.length === 0) { | ||
| throw new Error("Missing argument, expected <preset>"); | ||
| } | ||
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| if (options._unknown.length > 1) { | ||
| throw new Error(`Unexpected argument ${options._unknown[1]}`); | ||
| } | ||
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| assertIsTargetPreset(options._unknown[0]); | ||
| this._preset = options._unknown[0]; | ||
| } | ||
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| log(msg: string) { | ||
| if (this._verbose) { | ||
| console.error("[neon preset] " + msg); | ||
| } | ||
| } | ||
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| async run() { | ||
| const map = expandTargetPreset(this._preset); | ||
| const output = this._pretty | ||
| ? JSON.stringify(map, null, 2) | ||
| : JSON.stringify(map); | ||
| console.log(output); | ||
| } | ||
| } |
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