refactor: Refactor environment package

[frostming]

Signed-off-by: Frost Ming [email protected]

Pull Request Checklist

• A news fragment is added in news/ describing what is new.
• Test cases added for changed code.

Describe what you have changed in this PR.

[codecov-commenter]

Codecov Report

Patch coverage: 74.25% and project coverage change: +0.04 🎉

Comparison is base (2cbf80f) 85.11% compared to head (c94dec3) 85.15%.

📣 This organization is not using Codecov’s GitHub App Integration. We recommend you install it so Codecov can continue to function properly for your repositories. Learn more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1791      +/-   ##
==========================================
+ Coverage   85.11%   85.15%   +0.04%     
==========================================
  Files          95       99       +4     
  Lines        8914     8974      +60     
  Branches     1941     1946       +5     
==========================================
+ Hits         7587     7642      +55     
- Misses        899      906       +7     
+ Partials      428      426       -2     

Flag	Coverage Δ
unittests	84.96% <74.25%> (+0.04%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/pdm/cli/commands/export.py	94.87% <0.00%> (ø)
src/pdm/models/repositories.py	78.83% <ø> (ø)
src/pdm/project/toml_file.py	100.00% <ø> (ø)
src/pdm/models/candidates.py	87.20% <50.00%> (+0.29%)	⬆️
src/pdm/environments/__init__.py	60.00% <60.00%> (ø)
src/pdm/environments/local.py	66.66% <66.66%> (ø)
src/pdm/environments/base.py	70.00% <70.00%> (ø)
src/pdm/environments/python.py	77.41% <77.41%> (ø)
src/pdm/cli/commands/info.py	93.33% <80.00%> (+0.74%)	⬆️
src/pdm/project/core.py	89.38% <87.50%> (+0.23%)	⬆️
... and 16 more

... and 1 file with indirect coverage changes

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report in Codecov by Sentry.
📢 Do you have feedback about the report comment? Let us know in this issue.