entryPoints does not support glob patterns

[dwelle]

Glob patterns in entryPoints are not supported:

const { build } = require('esbuild');
build({
  entryPoints: './src/*.ts',
  /* ... */
});

throws:

error: Duplicate entry point "../../../../../.."
error: Duplicate entry point "."
error: Duplicate entry point "s"

When specified as an array (entryPoints: ["./src/*.ts"]), it throws:

error: Cannot read file "src/*.ts"

[rtsao]

You could always do something like this:

const { build } = require("esbuild");
const glob = require("tiny-glob");

(async () => {
  let entryPoints = await glob("./src/*.ts");
  await build({
    entryPoints,
    /* ... */
  });
})();

[dwelle]

I know. I just thought it should either be 1) supported 2) handled (display user-friendly error) & documented.

[evanw]

The reason why this looks so weird here is that entryPoints is supposed to be an array of strings:

esbuild/lib/types.ts

Line 44 in 5e0dabf

entryPoints?: string[];

Passing a string instead causes esbuild to iterate over the characters in the string and treat each character as an entry point path. I will add an error for this case if you pass invalid data for the entryPoints array.

[dwelle]

True (oh the joys of writing plain JS files instead of TS). I actually started with an array, and the error there is at least readable :).

[kuba-orlik]

You could always do something like this:

const { build } = require("esbuild");
const glob = require("tiny-glob");

(async () => {
  let entryPoints = await glob("./src/*.ts");
  await build({
    entryPoints,
    /* ... */
  });
})();

This solution is far from perfect, as it doesn't require new files - that is, files created after watch has been started

[allomov]

Thank you! It was also acceptable to me to use resolve-glob with glob.sync, like this:

const glob = require('resolve-glob');

const options = {ignore: ["**/*.test.js", "**/*.spec.js", "**/*.stories.js"]};
const entryPoints = glob.sync(
  [
    "./app/javascript/**/*.ts",
    "./app/javascript/**/*.tsx",
    "./app/javascript/**/*.js",
    "./app/javascript/**/*.jsx"
  ],
  options)

build({
  entryPoints: entryPoints,
  // ...
}).catch(() => process.exit(1))

[ngdangtu-vn]

Do we have any solution for CLI version guys?

Update

I didn't expect solution for bash shell would be this simple

esbuild $(find src/js -name *.js) --watch \
    --outdir=dist --outbase=src/js --target=es6 --format=esm