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refactor(docs-infra): use mockable logger (#25671)

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Related discussion:
https://github.com/angular/angular/pull/23576#discussion_r187925949.

PR Close #25671
This commit is contained in:
George Kalpakas
2018-08-27 18:07:25 +03:00
committed by Kara Erickson
parent 182c08bee1
commit fc0a7959a4
13 changed files with 142 additions and 49 deletions
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29
aio/aio-builds-setup/dockerbuild/scripts-js/lib/common/utils.ts
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@ -74,12 +74,25 @@ export const getEnvVar = (name: string, isOptional = false): string => {
return value || '';
};
export function createLogger(scope: string) {
const padding = ' '.repeat(20 - scope.length);
return {
error: (...args: any[]) => console.error(`[${new Date()}]`, `${scope}:${padding}`, ...args),
info: (...args: any[]) => console.info(`[${new Date()}]`, `${scope}:${padding}`, ...args),
log: (...args: any[]) => console.log(`[${new Date()}]`, `${scope}:${padding}`, ...args),
warn: (...args: any[]) => console.warn(`[${new Date()}]`, `${scope}:${padding}`, ...args),
};
/**
* A basic logger implementation.
* Delegates to `console`, but prepends each message with the current date and specified scope (i.e caller).
*/
export class Logger {
private padding = ' '.repeat(20 - this.scope.length);
/**
* Create a new `Logger` instance for the specified `scope`.
* @param scope The logger's scope (added to all messages).
*/
constructor(private scope: string) {}
public error(...args: any[]) { this.callMethod('error', args); }
public info(...args: any[]) { this.callMethod('info', args); }
public log(...args: any[]) { this.callMethod('log', args); }
public warn(...args: any[]) { this.callMethod('warn', args); }
private callMethod(method: 'error' | 'info' | 'log' | 'warn', args: any[]) {
console[method](`[${new Date()}]`, `${this.scope}:${this.padding}`, ...args);
}
}