[CT-3169] [Bug] .yaml prefix not recognized for packages.yml

[andy-clapson]

Is this a new bug in dbt-core?

• I believe this is a new bug in dbt-core
• I have searched the existing issues, and I could not find an existing issue for this bug

Current Behavior

If I create a valid packages.yaml in my project directory and run dbt deps, it fails to find any dependencies. If I change the file extension to be .yml, things work fine.

Expected Behavior

I would expect .yaml and .yml to be interchangeable (and there seems to be an interface to handle both...? Maybe not used in some cases). If not, at least a warning pointing me to the issue.

Steps To Reproduce

1. Create new project
2. Create/copy packages.yaml file
3. run dbt deps

Relevant log output

{"data": {"log_version": 3, "version": "=1.4.5"}, "info": {"category": "", "code": "A001", "extra": {}, "invocation_id": "f97fdb3c-61cf-49fb-b595-3dc00faaa631", "level": "info", "msg": "Running with dbt=1.4.5", "name": "MainReportVersion", "pid": 63990, "thread": "MainThread", "ts": "2023-09-28T15:46:04.254826Z"}}
{"data": {}, "info": {"category": "", "code": "M013", "extra": {}, "invocation_id": "f97fdb3c-61cf-49fb-b595-3dc00faaa631", "level": "info", "msg": "Warning: No packages were found in packages.yml", "name": "DepsNoPackagesFound", "pid": 63990, "thread": "MainThread", "ts": "2023-09-28T15:46:04.277178Z"}}

Environment

- OS: MacOS 12.7
- Python: 3.10
- dbt: 1.4.5

Which database adapter are you using with dbt?

postgres

Additional Context

No response

[dbeatty10]

Thanks for reaching out @andy-clapson !

Totally reasonable to expect that .yml and .yaml would be interchangable (especially since the YAML folks recommend the .yaml extension).

This is covered by #5002, so I'm going to close this as a duplicate.

If anyone is interested in tackling this effort, there's some guidance here (that covers all of "profiles.yml", "dbt_project.yml", "selectors.yml", "packages.yml"): #5002 (comment)

i.e., the end goal is that all of these would be interchangeable:

profiles.yml	profiles.yaml
dbt_project.yml	dbt_project.yaml
selectors.yml	selectors.yaml
packages.yml	packages.yaml

[andy-clapson]

Thanks for reaching out @andy-clapson !

Totally reasonable to expect that .yml and .yaml would be interchangable (especially since the YAML folks recommend the .yaml extension).

This is covered by #5002, so I'm going to close this as a duplicate.

If anyone is interested in tackling this effort, there's some guidance here (that covers all of "profiles.yml", "dbt_project.yml", "selectors.yml", "packages.yml"): #5002 (comment)

i.e., the end goal is that all of these would be interchangeable:

profiles.yml profiles.yaml
dbt_project.yml dbt_project.yaml
selectors.yml selectors.yaml
packages.yml packages.yaml

ah! my searching failed me, but I did try and look for an existing issue - thanks!

[dbeatty10]

Sure thing @andy-clapson ! Thanks again for opening this issue 🏆

You nudged us to review #5002, and then we updated the issue title (for better searchability) and re-categorized it as a handy feature request.