parent
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import LifecycleUnit from '../../lib/src/lifecycle/Unit.ts'
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import {CLIService} from './service/CLI.service.ts'
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import {Unit} from '../../lib/src/lifecycle/decorators.ts'
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import {Logging} from '../../lib/src/service/logging/Logging.ts'
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@Unit()
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export default class CLIAppUnit extends LifecycleUnit {
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constructor(
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protected readonly cli: CLIService,
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protected readonly logger: Logging,
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) { super() }
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public async up() {
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this.logger.verbose(`Handling CLI invocation...`)
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const args = Deno.args
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console.log('args', {args})
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}
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}
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import LifecycleUnit from '../../lib/src/lifecycle/Unit.ts'
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import {CLIService} from './service/CLI.service.ts'
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import {Unit} from '../../lib/src/lifecycle/decorators.ts'
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import {UsageDirective} from './directive/UsageDirective.ts'
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@Unit()
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export default class CLIUnit extends LifecycleUnit {
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constructor(
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protected readonly cli: CLIService,
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) { super() }
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public async up() {
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this.cli.register_directive(this.make(UsageDirective))
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}
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}
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import AppClass from '../../../lib/src/lifecycle/AppClass.ts'
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import {Logging} from '../../../lib/src/service/logging/Logging.ts'
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export abstract class Directive extends AppClass {
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public abstract readonly keyword: string
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public abstract readonly help: string
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static options() {
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return []
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}
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public abstract invoke(): any
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success(message: any) {
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this.make(Logging).success(message, true)
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}
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error(message: any) {
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this.make(Logging).error(message, true)
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}
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warn(message: any) {
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this.make(Logging).warn(message, true)
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}
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info(message: any) {
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this.make(Logging).info(message, true)
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}
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debug(message: any) {
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this.make(Logging).debug(message, true)
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}
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verbose(message: any) {
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this.make(Logging).verbose(message, true)
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}
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}
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import {Directive} from './Directive.ts'
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export class UsageDirective extends Directive {
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public readonly keyword = 'help'
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public readonly help = 'Display usage information'
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public async invoke() {
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console.log('Hello, from Daton CLI.')
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}
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}
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import AppClass from '../../../lib/src/lifecycle/AppClass.ts'
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import {Service} from '../../../di/src/decorator/Service.ts'
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import {Collection} from '../../../lib/src/collection/Collection.ts'
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import {Directive} from '../directive/Directive.ts'
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import {Logging} from '../../../lib/src/service/logging/Logging.ts'
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/**
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* Error thrown when a directive registered with the same keyword as
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* an existing directive.
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* @extends Error
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*/
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export class DuplicateCLIDirectiveError extends Error {
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constructor(keyword: string) {
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super(`A CLI directive with the keyword "${keyword}" already exists.`)
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}
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}
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/**
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* Service for registering and managing CLI directives.
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* @extends AppClass
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*/
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@Service()
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export class CLIService extends AppClass {
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protected directives: Collection<Directive> = new Collection<Directive>()
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constructor(
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protected readonly logger: Logging,
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) { super() }
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/**
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* Find a registered directive using its keyword, if one exists.
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* @param {string} keyword
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* @return Directive | undefined
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*/
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public get_directive_by_keyword(keyword: string): Directive | undefined {
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return this.directives.firstWhere('keyword', '=', keyword)
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}
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/**
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* Get a collection of all registered directives.
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* @return Collection<Directive>
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*/
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public get_directives() {
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return this.directives.clone()
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}
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/**
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* Register a directive with the service.
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* @param {Directive} directive
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*/
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public register_directive(directive: Directive) {
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if ( this.get_directive_by_keyword(directive.keyword) ) {
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throw new DuplicateCLIDirectiveError(directive.keyword)
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}
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this.logger.verbose(`Registering CLI directive with keyword: ${directive.keyword}`)
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this.directives.push(directive)
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}
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}
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export default class ErrorWithContext extends Error {
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}
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