esbuild.mjs

import esbuild from 'esbuild'
import process from 'process'
import console from 'console'

const production = process.argv.includes('--production')
const watch = process.argv.includes('--watch')

async function main() {
    const ctx = await esbuild.context({
        entryPoints: ['src/extension.ts'],
        bundle: true,
        format: 'cjs',
        minify: production,
        sourcemap: !production,
        sourcesContent: false,
        platform: 'node',
        outfile: 'out/extension.js',
        external: ['vscode'],
        logLevel: 'silent',
        plugins: [
            /* add to the end of plugins array */
            esbuildProblemMatcherPlugin,
        ],
    })
    if (watch) {
        await ctx.watch()
    } else {
        await ctx.rebuild()
        await ctx.dispose()
    }
}

/**
 * @type {import('esbuild').Plugin}
 */
const esbuildProblemMatcherPlugin = {
    name: 'esbuild-problem-matcher',

    setup(build) {
        build.onStart(() => {
            console.log('[watch] build started')
        })
        build.onEnd(result => {
            result.errors.forEach(({ text, location }) => {
                console.error(`✘ [ERROR] ${text}`)
                console.error(
                    `    ${location.file}:${location.line}:${location.column}:`,
                )
            })
            console.log('[watch] build finished')
        })
    },
}

main().catch(e => {
    console.error(e)
    process.exit(1)
})