node_modules ignore

server/node_modules/browserslist-to-esbuild/src/index.d.ts

@@ -0,0 +1,2 @@
+declare const browserslistToEsbuild: (browserslistConfig?: string[] | string) => string[]
+export default browserslistToEsbuild

server/node_modules/browserslist-to-esbuild/src/index.js

@@ -0,0 +1,74 @@
+const browserslist = require('browserslist')
+
+// convert the browserslist field in package.json to
+// esbuild compatible array of browsers
+function browserslistToEsbuild(browserslistConfig) {
+  if (!browserslistConfig) {
+    // the path from where the script is run
+    const path = process.cwd()
+
+    // read config if none is passed
+    browserslistConfig = browserslist.loadConfig({ path })
+  }
+
+  const SUPPORTED_ESBUILD_TARGETS = ['es', 'chrome', 'edge', 'firefox', 'ios', 'node', 'safari']
+
+  // https://github.com/eBay/browserslist-config/issues/16#issuecomment-863870093
+  const UNSUPPORTED = ['android 4']
+
+  const replaces = {
+    ios_saf: 'ios',
+    android: 'chrome',
+  }
+
+  const separator = ' '
+
+  return (
+    browserslist(browserslistConfig)
+      // filter out the unsupported ones
+      .filter((b) => !UNSUPPORTED.some((u) => b.startsWith(u)))
+      // transform into ['chrome', '88']
+      .map((b) => b.split(separator))
+      // replace the similar browser
+      .map((b) => {
+        if (replaces[b[0]]) {
+          b[0] = replaces[b[0]]
+        }
+
+        return b
+      })
+      // 11.0-12.0 --> 11.0
+      .map((b) => {
+        if (b[1].includes('-')) {
+          b[1] = b[1].slice(0, b[1].indexOf('-'))
+        }
+
+        return b
+      })
+      // 11.0 --> 11
+      .map((b) => {
+        if (b[1].endsWith('.0')) {
+          b[1] = b[1].slice(0, -2)
+        }
+
+        return b
+      })
+      // only get the ones supported by esbuild
+      .filter((b) => SUPPORTED_ESBUILD_TARGETS.includes(b[0]))
+      // only get the oldest version
+      .reduce((acc, b) => {
+        const existingIndex = acc.findIndex((br) => br[0] === b[0])
+
+        if (existingIndex !== -1) {
+          acc[existingIndex][1] = b[1]
+        } else {
+          acc.push(b)
+        }
+        return acc
+      }, [])
+      // remove separator
+      .map((b) => b.join(''))
+  )
+}
+
+module.exports = browserslistToEsbuild