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What is this?
tsup is a zero-config bundler for TypeScript libraries, built on top of esbuild for speed.
tsup is a zero-config bundler for TypeScript libraries, built on top of esbuild for speed.Is this a CLI tool or a library I import?It is a command-line tool you run in your project; it compiles .js, .json, .mjs, .ts and .tsx files into a dist folder.
It is a command-line tool you run in your project; it compiles .js, .json, .mjs, .ts and .tsx files into a dist folder.How do I get it running?Install tsup locally in your project folder and run it against your entry file(s); output goes to ./dist. You can bundle multiple entry files in one command.
Install tsup locally in your project folder and run it against your entry file(s); output goes to ./dist. You can bundle multiple entry files in one command.What do I need to run it?Node.js 18 or newer is required; under the hood tsup relies on esbuild and rollup for bundling.
Node.js 18 or newer is required; under the hood tsup relies on esbuild and rollup for bundling.Is tsup still actively maintained?No. The maintainer has stopped active development and recommends switching to tsdown instead.
No. The maintainer has stopped active development and recommends switching to tsdown instead.Can tsup bundle CSS files?Yes, but CSS support is explicitly called out as experimental in the README.
Yes, but CSS support is explicitly called out as experimental in the README.What should I use now that tsup is unmaintained?The README points users to tsdown as the recommended successor, with a migration guide linked.
The README points users to tsdown as the recommended successor, with a migration guide linked.Can I install tsup globally instead of per-project?You can, but the README advises against it and recommends a local project install instead.
You can, but the README advises against it and recommends a local project install instead.What problem does tsup solve compared to configuring esbuild manually?It wraps esbuild with sensible defaults so you can bundle a TypeScript library with no configuration file needed.
It wraps esbuild with sensible defaults so you can bundle a TypeScript library with no configuration file needed.Which topics is it in?bundler, build-tool, javascript-library, deprecated, css, command-line-tool, npm, tool, nodejs, library, typescript, javascript
bundler, build-tool, javascript-library, deprecated, css, command-line-tool, npm, tool, nodejs, library, typescript, javascript