[RuntimeException] /.composer/cache/preserve-paths/ on docker build

[gregpavl]

Environment

dev:

• Device: macOS Big Sur
• OS version: v11.4
• Docker: version 20.10.11, build dea9396
• Composer: version 2.2.1
• drupal-composer/preserve-paths: 0.1.6

prd:

• alpine:3.14
• php8.0.13
• no sudo-er / user: nobody

Describe the problem:

If vendor/ folder does not exist in the repo, the command docker build -t app . fails with the error:

  [RuntimeException]                                                                                                 
  /.composer/cache/preserve-paths/518d646133f3bc0cdce8020fedc7a2cfdb3ed202 does not exist and could not be created.

Steps to reproduce:

1. Delete in local dev environment the vendor file
2. run: docker build -t app .
3. You get the RuntimeException error

Expected Results:

• No runtime exception. Other packages are not bind on build with the vendor
• The vendor folder must not be committed or built in advance into an automated ci/cd environment.

---

or, I miss something?