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feat(toolkit): add 'cdk context' command
Add a command to view and manage cached context values. Fixes #311.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| import colors = require('colors/safe'); | ||
| import table = require('table'); | ||
| import yargs = require('yargs'); | ||
| import { print } from '../../lib/logging'; | ||
| import { DEFAULTS, loadProjectConfig, saveProjectConfig } from '../settings'; | ||
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| export const command = 'context'; | ||
| export const describe = 'Manage cached context values'; | ||
| export const builder = { | ||
| invalidate: { | ||
| alias: 'd', | ||
| desc: 'The context key (or its index) to invalidate', | ||
| type: 'string', | ||
| requiresArg: 'KEY' | ||
| }, | ||
| clear: { | ||
| desc: 'Clear all context', | ||
| type: 'boolean', | ||
| } | ||
| }; | ||
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| export async function handler(args: yargs.Arguments): Promise<number> { | ||
| const settings = await loadProjectConfig(); | ||
| const context = settings.get(['context']) || {}; | ||
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| if (args.clear) { | ||
| settings.set(['context'], {}); | ||
| await saveProjectConfig(settings); | ||
| print('All context values cleared.'); | ||
| } else if (args.invalidate) { | ||
| invalidateContext(context, args.invalidate); | ||
| settings.set(['context'], context); | ||
| await saveProjectConfig(settings); | ||
| } else { | ||
| listContext(context); | ||
| } | ||
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| return 0; | ||
| } | ||
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| function listContext(context: any) { | ||
| const keys = contextKeys(context); | ||
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| // Print config by default | ||
| const data: any[] = [[colors.green('#'), colors.green('Key'), colors.green('Value')]]; | ||
| for (const [i, key] of keys) { | ||
| const jsonWithoutNewlines = JSON.stringify(context[key], undefined, 2).replace(/\s+/g, ' '); | ||
| data.push([i, key, jsonWithoutNewlines]); | ||
| } | ||
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| print(`Context found in ${colors.blue(DEFAULTS)}:\n`); | ||
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| print(table.table(data, { | ||
| border: table.getBorderCharacters('norc'), | ||
| columns: { | ||
| 1: { width: 50, wrapWord: true } as any, | ||
| 2: { width: 50, wrapWord: true } as any | ||
| } | ||
| })); | ||
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| // tslint:disable-next-line:max-line-length | ||
| print(`Run ${colors.blue('cdk context --invalidate KEY_OR_NUMBER')} to invalidate a context key. It will be refreshed on the next CDK synthesis run.`); | ||
| } | ||
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| function invalidateContext(context: any, key: string) { | ||
| const i = parseInt(key, 10); | ||
| if (`${i}` === key) { | ||
| // Twas a number and we fully parsed it. | ||
| key = keyByNumber(context, i); | ||
| } | ||
|
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| // Unset! | ||
| if (!(key in context)) { | ||
| throw new Error(`No context value with key: ${key}`); | ||
| } | ||
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| delete context[key]; | ||
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| print(`Context value ${colors.blue(key)} invalidated. It will be refreshed on the next SDK synthesis run.`); | ||
| } | ||
|
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| function keyByNumber(context: any, n: number) { | ||
| for (const [i, key] of contextKeys(context)) { | ||
| if (n === i) { | ||
| return key; | ||
| } | ||
| } | ||
| throw new Error(`No context key with number: ${n}`); | ||
| } | ||
|
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| /** | ||
| * Return enumerated keys in a definitive order | ||
| */ | ||
| function contextKeys(context: any) { | ||
| const keys = Object.keys(context); | ||
| keys.sort(); | ||
| return enumerate1(keys); | ||
| } | ||
|
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| function enumerate1<T>(xs: T[]): Array<[number, T]> { | ||
| const ret = new Array<[number, T]>(); | ||
| let i = 1; | ||
| for (const x of xs) { | ||
| ret.push([i, x]); | ||
| i += 1; | ||
| } | ||
| return ret; | ||
| } |
16 changes: 8 additions & 8 deletions
16
packages/aws-cdk/lib/contextplugins.ts → ...es/aws-cdk/lib/context-providers/index.ts
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