correctly track which keys were written to process.env

[motdotla]

No description provided.

[Copilot]

Pull Request Overview

This PR enhances environment variable injection by tracking which keys are actually written to process.env and reflecting that in the log output.

• Return a populated object from populate to record written keys
• Use populated instead of parsedAll to compute keys count for logging
• Update the log message formatting and add assignments to populated in both override and default branches

Comments suppressed due to low confidence (4)

lib/main.js:341

• Add unit tests for populate to verify the returned populated object contains exactly the keys that were written to process.env, including both override and default branches.

  const populated = {}

lib/main.js:338

• Update the function’s documentation or add a JSDoc block to describe the new return value (populated) and its behavior, so consumers know about the API change.

function populate (processEnv, parsed, options = {}) {

lib/main.js:370

• Introducing a return value in populate is an API change; consider whether this requires a major version bump or an explicit note in the changelog to avoid breaking downstream users.

  return populated

lib/main.js:277

• [nitpick] The bracketed '[tip]' prefix differs from the existing emoji style in logs; consider aligning log message formatting with the project’s established conventions.

    _log(`injecting env (${keysCount}) from ${shortPaths.join(',')} – [tip] encrypt with dotenvx: https://dotenvx.com`)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (3010120) to head (2561ad1).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master      #879   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files            3         3           
  Lines          431       436    +5     
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+ Hits           431       436    +5     

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