Imported `west-commands` don't resolve when module manifest isn't in module root

[urob]

When manifest isn't in the root of a module, then custom west-commands don't resolve when imported from another Zephyr workspace.

Example: https://github.com/zmkfirmware/zmk

The manifest file is located at /app/west.yml. The manifest adds custom commands from /app/scripts/west-commands.yml:

# ZMK manifest
manifest:
  # ...
  self:
    west-commands: scripts/west-commands.yml

When zmk is the topdir of the workspace, both the path to west-commands.yml and the paths to any script defined therein are interpreted relative to /app.

However, when zmk is imported from another Zephyr workspaces as follows, the paths won't resolve correctly:

# Main manifest of Zephyr workspace
manifest:
  projects:
    - name: zmk
      # ...
      import: app/west.yml

In this case, both the west-commands from the imported ZMK manifest as well as the paths to any script defined therein are interpreted as relative to /zmk (rather than /zmk/app), resulting in none of the commands being found.

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Note that overwriting west-commands from the topdir manifest with west-commands: app/scripts/west-commands.yml resolves the first problem of /zmk/app/scripts/west-commands.yml being found, but still interprets the paths to any script therein relative to /zmk.

[marc-hb]

Thanks for the great bug report. The inconsistency that you described really looks like a bug. Unfortunately, there is a serious shortage on the west maintenance side so unless you can find a volunteer for a fix (and... a test) I'm afraid you will have to find workarounds.