Improve build time performance

[tylers-username]

• Performance improvements
  • Switch NPM to Bun
  • Switch pip to uv
• Potential performance
  • Upgrade node.js from 18 to 22
• Pipeline stuff: The demo will support a single python and node.js version. Reduce pipeline tests to supported versions.
• Passing tests

The demo runthrough pipeline has consistently shown a reduction of ~1 minute for first deployment completions (upsun push -> deployed)

The demo runthrough pipeline has consistently shown that subsequent deployments (merge, branch, etc) take about ~1m15s

[github-actions]

Hello, and thank you for contributing to the Upsun demo project!

Setting up tests

Until all tests pass, a pull request will not be merged.

Build tests for combinations of Python and Node.js will happen automatically, and must pass in order to merge.
Another test will actually runthrough all steps of the demo on a new project, but requires a repository admin to add the runthrough label to the pull request.

Failing tests

If your PR is failing, see the Running tests section of the README for troubleshooting details.

Reviewing these changes locally:

1. Clone this repo

   git clone -b improvement/backend-frontend-build-time git@github.com:platformsh/demo-project.git demo-test-improvement/backend-frontend-build-time && cd demo-test-improvement/backend-frontend-build-time

2. Create a project on Upsun:

   upsun project:create --title "Demo Project test (pr-438/merge)" --default-branch improvement/backend-frontend-build-time

   This command will set the local repository remote automatically, but you will need to specify the organization and region.

3. Push to Upsun:

   upsun push

[pjcdawkins]

bun.lockb is an older format:

https://bun.com/docs/install/lockfile

Bun v1.2 changed the default lockfile format to the text-based bun.lock. Existing binary bun.lockb lockfiles can be migrated to the new format by running bun install --save-text-lockfile --frozen-lockfile --lockfile-only and deleting bun.lockb.

[tylers-username]

bun.lockb is an older format:

https://bun.com/docs/install/lockfile

Bun v1.2 changed the default lockfile format to the text-based bun.lock. Existing binary bun.lockb lockfiles can be migrated to the new format by running bun install --save-text-lockfile --frozen-lockfile --lockfile-only and deleting bun.lockb.

@pjcdawkins this has been corrected

[tylers-username]

bun.lockb is an older format:
https://bun.com/docs/install/lockfile

Bun v1.2 changed the default lockfile format to the text-based bun.lock. Existing binary bun.lockb lockfiles can be migrated to the new format by running bun install --save-text-lockfile --frozen-lockfile --lockfile-only and deleting bun.lockb.

@pjcdawkins this has been corrected

Just noticed that Upsun apps use version 1.1 of bun which may be incompatible with this lock file version.

This below corrects the issue, but I just encountered my first test that was back to 2.5 minutes. However, it's unclear if it was due to this change or due to deploying at a time where services were weighed down a bit.

        dependencies:
          nodejs:
            bun: "v1.2.23"

[pjcdawkins]

I think it should continue to work with the built in bun (1.1) and the text lock file, 1.2 just made the text file default

[tylers-username]

I think it should continue to work with the built in bun (1.1) and the text lock file, 1.2 just made the text file default

I set my local bun to match Upsun's default Bun version and reverted the Upsun config to use Upsun's default bun version. How do you feel about the latest state of this mr @pjcdawkins ?