pip CLI flags while importing environment.yml with pixi

[johndutchover]

I was just working my way through this Snowflake tutorial and thought, why don't I use pixi for importing the environment.yml file?

Instead of conda env create --file environment.yml, I tried running pixi init -i environment.yml, only to find out:

pixi init -i environment.yml
`Error:   × Can't parse '-r requirements.txt' as pypi dependency`
  ╰─▶ Expected package name starting with an alphanumeric character, found `-`
      -r requirements.txt
      ^

The requirements.txt file looks like:

name: snowpark-testing
channels:
  - snowflake
dependencies:
  - python=3.9
  - pip
  - pip:
      - "-r requirements.txt"
      - "--editable ."

The only somewhat related discussion I found: #1140

[lucascolley]

I will tackle this eventually. Currently my plan is to implement:

1. pixi import environment.yml (feat(import): implement pixi import for environment.yml #4096)
2. pixi import requirements.txt
3. pixi init --import requirements.txt
4. this discussion, for both import and init