Error: --platform or --push not supported w/dockerComposeFile

[metaskills]

I noticed that the ci project now supports a platform option with the following work devcontainers/ci#175 However, it breaks for me when I use this with dockerComposeFile. I can reproduce this locally too with the CLI.

(kencollins) - (~/Repositories/lamby-citest) 💎 3.1.3 🔄 main
> devcontainer build --workspace-folder . --image-name test --platform linux/amd64
[16 ms] @devcontainers/cli 0.29.0. Node.js v18.11.0. darwin 21.6.0 x64.
Error: --platform or --push not supported.
    at uoe (/Users/kencollins/.nodenv/versions/18.11.0/lib/node_modules/@devcontainers/cli/dist/spec-node/devContainersSpecCLI.js:2045:27034)
    at async aoe (/Users/kencollins/.nodenv/versions/18.11.0/lib/node_modules/@devcontainers/cli/dist/spec-node/devContainersSpecCLI.js:2045:25017)
{"outcome":"error","message":"--platform or --push not supported.","description":"--platform or --push not supported."}

Is this an oversight on behalf of the following work where some error handling needs to be removed?

• Add multi build support #24
• Build command: Support multiple --image-name parameters  #61

I tracked the error to the following location in the code. Thoughts?

• https://github.com/devcontainers/cli/blob/main/src/spec-node/devContainersSpecCLI.ts#L585-L589