Transform external imports into global variables like Rollup's output.globals
option. See rollup/rollup#2374
npm install -D rollup-plugin-external-globals
import externalGlobals from "rollup-plugin-external-globals";
export default {
input: ["entry.js"],
output: {
dir: "dist",
format: "es"
},
plugins: [
externalGlobals({
jquery: "$"
})
]
};
The above config transforms
import jq from "jquery";
console.log(jq(".test"));
into
console.log($(".test"));
It also transforms dynamic import:
import("jquery")
.then($ => {
$ = $.default || $;
console.log($(".test"));
});
// transformed
Promise.resolve($)
.then($ => {
$ = $.default || $;
console.log($(".test"));
});
Note: when using dynamic import, you should notice that in ES module, the resolved object is aways a module namespace, but the global variable might be not.
Note: this plugin only works with import/export syntax. If you are using a module loader transformer e.g.
rollup-plugin-commonjs
, you have to put this plugin after the transformer plugin.
This module exports a single function.
const plugin = createPlugin(
globals: Object,
{
include?: Array,
exclude?: Array
} = {}
);
globals
is a moduleId
/variableName
map. For example, to map jquery
module to $
:
{
jquery: "$"
}
include
is an array of glob patterns. If defined, only matched files would be transformed.
exclude
is an array of glob patterns. Matched files would not be transformed.
Virtual modules are always transformed.
-
0.4.0 (Sep 24, 2019)
- Add: transform dynamic imports i.e.
import("foo")
=>Promise.resolve(FOO)
.
- Add: transform dynamic imports i.e.
-
0.3.1 (Jun 6, 2019)
- Fix: all export-from statements are incorrectly transformed.
- Bump dependencies.
-
0.3.0 (Mar 25, 2019)
- Fix: temporary variable name conflicts.
- Breaking: transform virtual modules. Now the plugin transforms proxy modules generated by commonjs plugin.
- Bump dependencies.
-
0.2.1 (Oct 2, 2018)
- Fix: don't skip export statement.
-
0.2.0 (Sep 12, 2018)
- Change: use
transform
hook. - Add: rewrite conflicted variable names.
- Add: handle export from.
- Change: use
-
0.1.0 (Aug 5, 2018)
- Initial release.