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59 lines
1.8 KiB
59 lines
1.8 KiB
import {Unit} from '../../lifecycle/Unit'
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import {Logging} from '../../service/Logging'
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import {Singleton, Inject} from '../../di/decorator/injection'
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import {CommandLine} from './CommandLine'
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import {UsageDirective} from '../directive/UsageDirective'
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import {Directive} from '../Directive'
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import {ShellDirective} from '../directive/ShellDirective'
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import {TemplateDirective} from '../directive/TemplateDirective'
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import {RunDirective} from '../directive/RunDirective'
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/**
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* Unit that takes the place of the final unit in the application that handles
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* invocations from the command line.
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*/
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@Singleton()
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export class CommandLineApplication extends Unit {
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/** The unit that was replaced by the CLI app. */
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private static replacement?: typeof Unit
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/** Set the replaced unit. */
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public static setReplacement(unitClass?: typeof Unit): void {
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this.replacement = unitClass
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}
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/** Get the replaced unit. */
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public static getReplacement(): typeof Unit | undefined {
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return this.replacement
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}
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@Inject()
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protected readonly cli!: CommandLine
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@Inject()
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protected readonly logging!: Logging
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constructor() {
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super()
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}
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public async up(): Promise<void> {
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this.cli.registerDirective(UsageDirective)
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this.cli.registerDirective(ShellDirective)
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this.cli.registerDirective(TemplateDirective)
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this.cli.registerDirective(RunDirective)
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const argv = process.argv.slice(2)
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const match = this.cli.getDirectives()
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.map(dirCls => this.make<Directive>(dirCls))
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.firstWhere(dir => dir.matchesKeyword(argv[0]))
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if ( match ) {
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await match.invoke(argv.slice(1))
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} else {
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const usage = this.make<UsageDirective>(UsageDirective)
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await usage.handle()
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}
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}
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}
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