fix(windows): support backslash in cli arguments (#463)

package.json

@@ -61,6 +61,7 @@
     "resolve": "^1.20.0",
     "rollup-plugin-dts": "^3.0.2",
     "rollup-plugin-hashbang": "^2.2.2",
+    "slash": "^4.0.0",
     "string-argv": "^0.3.1",
     "strip-json-comments": "^3.1.1",
     "svelte": "3.37.0",

src/cli-main.ts

@@ -2,6 +2,7 @@ import { readFileSync } from 'fs'
 import { join } from 'path'
 import { cac } from 'cac'
 import flat from 'flat'
+import slash from 'slash'
 import { Format, Options } from '.'
 
 function ensureArray(input: string): string[] {
@@ -88,7 +89,7 @@ export async function main(options: Options = {}) {
         ...flags,
       })
       if (files.length > 0) {
-        options.entryPoints = files
+        options.entryPoints = files.map(slash)
       }
       if (flags.format) {
         const format = ensureArray(flags.format) as Format[]

test/index.test.ts

@@ -1080,3 +1080,18 @@ test('multiple entry with the same base name', async () => {
     ]
   `)
 })
+
+test('backslash in entry', async () => {
+  const { outFiles } = await run(
+    getTestName(),
+    { 'src/input.ts': `export const foo = 1` },
+    {
+      entry: ['src\\input.ts'],
+    }
+  )
+  expect(outFiles).toMatchInlineSnapshot(`
+    Array [
+      "input.js",
+    ]
+  `)
+})