playwright/packages/README.md
Andrey Lushnikov 2511cb4c56
devops: drop playwright-electron dependency on playwright-core (#2634)
Drive-by: bump playwright-electron version to 0.4.0; i'll publish it
after this PR lands.
2020-06-18 17:11:10 -07:00

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# Managing and Publishing Playwright Packages
## Overview
- Playwright ships multiple packages to NPM. All packages that are published to NPM are listed as folders under [`//packages/`](../packages).
- Playwright's [root package.json](../package.json) is **never published to NPM**. It is only used for devmode, e.g. when running `npm install` with no arguments or installing from github.
- Playwright dependencies for all packages are the same and are managed with the [`root package.json`](../package.json).
- Playwright browser versions for all packages are the same and are managed with the [`browsers.json`](../browsers.json).
> **NOTE** As of May 20, 2020, the only exception is the `playwright-electron` package that
> doesn't follow the pack and is published manually. This is due to it's pre-1.0 status.
## Building NPM package
To build a package that will be shipped to NPM, use [`//packages/build_package.js`](./build_package.js) script.
The script populates package folder with contents, and then uses `npm pack` to archive the folder.
As of May 20, 2020, [`//packages/build_package.js`](./build_package.js) does the following:
- copies certain files and folders from `playwright-internal` to the subpackage (e.g. `//lib`, `//types`, `//LICENSE` etc)
- generates `package.json` and puts it in the subpackage
- generates `browsers.json` and puts it in the subpackage
- uses `npm pack` to pack the subpackage folder
- removes all the files that were added during the process
To build `playwright` package and save result as `./playwright.tgz` file:
```sh
$ ./packages/build_package.js playwright ./playwright.tgz
```
To debug what files are put into the folder, use `--no-cleanup` flag and inspect the package folder:
```sh
$ ./packages/build_package.js playwright ./playwright.tgz --no-cleanup
$ ls ./packages/playwright # inspect the folder
```
## Testing packages
To test packages, use [`//packages/installation-tests/installation-tests.sh`](./installation-tests/installation-tests.sh).
## Publishing packages
All package publishing happens **exclusively** over CI/CD using the [`//utils/publish_all_packages.sh`](../utils/publish_all_packages.sh) script.
# Special handling for `playwright-electron`
- `playwright-electron` version is pre-1.0.0 and thus managed separately. It's specified inside the [`//packages/build_package.js`]('./build_package.js') file.
- `playwright-electron` is published manually.
To publish a new version of `playwright-electron`:
1. Bump `playwright-electron` version inside [`//packages/build_package.js`]('./build_package.js')
2. Submit PR with the updated version
3. Build package with `./build_package.js playwright-electron ./playwright-electron.tgz`
4. Publish package with `npm publish playwright-electron.tgz`