feat(build): add runtime option (#47)

build.ts

@@ -1,5 +1,5 @@
 import { parse } from 'https://deno.land/std@0.190.0/flags/mod.ts'
-import { brightGreen, brightRed, brightYellow, gray, white } from 'https://deno.land/std@0.190.0/fmt/colors.ts'
+import { brightGreen, brightRed, brightYellow, gray } from 'https://deno.land/std@0.190.0/fmt/colors.ts'
 import { join } from 'https://deno.land/std@0.190.0/path/mod.ts'
 import byte from 'https://deno.land/x/byte@v3.3.0/byte.ts'
 import * as esbuild from 'https://deno.land/x/esbuild@v0.17.19/mod.js'
@@ -9,7 +9,8 @@ export async function build({
  output = './mod.js',
  banner = '// deno-fmt-ignore-file\n// deno-lint-ignore-file',
  target = 'es2022',
- cwd = Deno.cwd()
+ cwd = Deno.cwd(),
+ runtime: _ = 'deno'
 }: {
  /**
  * @default './mod.ts'
@@ -39,6 +40,12 @@ export async function build({
  * @default Deno.cwd()
  */
  cwd?: string
+ /**
+ * @default 'deno'
+ */
+ runtime?:
+ | 'cloudflare'
+ | 'deno'
 }) {
  const hasImportMap = async (path: string) => {
  try {
@@ -95,14 +102,20 @@ export async function build({
 }
 
 if (import.meta.main) {
- const { _, target } = parse(Deno.args)
+ const { _, target, runtime } = parse(Deno.args)
 
  const input = _[0] && typeof _[0] === 'string' ? _[0] : undefined
  const output = _[1] && typeof _[1] === 'string' ? _[1] : undefined
 
  try {
- // @ts-ignore:
- const { outputSize } = await build({ input, output, target: typeof target === 'string' ? target : undefined })
+ const { outputSize } = await build({
+ input,
+ output,
+ // @ts-ignore:
+ target: typeof target === 'string' ? target : undefined,
+ // @ts-ignore:
+ runtime: typeof runtime === 'string' ? runtime : undefined
+ })
 
  console.log(gray(`file size - ${outputSize < 1_000_000 ? brightGreen(byte(outputSize)) : outputSize < 5_000_000 ? brightYellow(byte(outputSize)) : brightRed(byte(outputSize))}`))
  } catch (err) {