Better handling of undefined values in branches

[jmhobbs]

Sometimes our automatic CI detection lands us with an undefined:<branch> value, which is not correct.

This strips that from branch values (unless explicitly set), and prints a warning message so users can possibly switch to CHROMATIC_BRANCH and CHROMATIC_SLUG

Also upgrades env-ci to detect more CI builders and hopefully avoid this situation in the first place.

📦 Published PR as canary version: 11.13.1--canary.1101.11444008898.0

:sparkles: Test out this PR locally via: ```bash npm install chromatic@11.13.1--canary.1101.11444008898.0 # or yarn add chromatic@11.13.1--canary.1101.11444008898.0 ```

[codacy-production[bot]]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
:white_check_mark: +0.07% (target: -1.00%)	:white_check_mark: 85.00% (target: 80.00%)

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (b4170a8f558b03615836bc71eec51830796f267c) | 8526 | 4661 | 54.67% | | | Head commit (925b5f08e956878c66273f09732c2cf05e6c637b) | 8546 (+20) | 4678 (+17) | 54.74% (**+0.07%**) | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#1101) | 20 | 17 | **85.00%** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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_{Codacy stopped sending the deprecated coverage status on June 5th, 2024. Learn more}

[github-actions[bot]]

📦 Package Size: 5264 KB ✅ Compared to main: -4 KB 9ae51185d550eba0d8c12b8045b0f6a83c5f5903 (5268 KB)

[jmhobbs]

@winkerVSbecks is there a better link I should use for this? I found https://www.chromatic.com/docs/custom-ci-provider/#overriding-chromatics-branch-detection but it does not mention CHROMATIC_BRANCH or CHROMATIC_SLUG on there.

[winkerVSbecks]

@jmhobbs We could add an FAQ for precisely this scenario and link to that. wdty?

[jmhobbs]

@jmhobbs We could add an FAQ for precisely this scenario and link to that. wdty?

Absolutely! I'll put this on hold for now until that is available.

[winkerVSbecks]

@jmhobbs FAQ link that you can use instead: https://www.chromatic.com/docs/faq/override-branch-name/

[codacy-production[bot]]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
Report missing for 9ae51185d550eba0d8c12b8045b0f6a83c5f5903[^1]	:white_check_mark: 84.21% (target: 80.00%)

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (9ae51185d550eba0d8c12b8045b0f6a83c5f5903) | Report Missing | Report Missing | Report Missing | | | Head commit (5d558439ccff22f09dde00c5ee1cf314fabac729) | 8545 | 4677 | 54.73% | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#1101) | 19 | 16 | **84.21%** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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_{Codacy stopped sending the deprecated coverage status on June 5th, 2024. Learn more} [^1]: Codacy didn't receive coverage data for the commit, or there was an error processing the received data. Check your integration for errors and validate that your coverage setup is correct.

[chromatic-ci-bot]

:rocket: PR was released in v11.13.0 :rocket: