virtual360-io/Selective Tests

Compute the Minitest tests affected by a diff using the selective_tests manifest committed at the project root. Outputs a newline-separated list of test files for the calling workflow to feed into its test runner.

Trust Signals

Scorecard Score: not yet scored
Maintenance Recency: Stale
License: None

Inputs

name	description	required	default
base-ref	Branch to diff against. The action computes `git diff --name-only origin/<base-ref>...HEAD`.	no	develop
changed-files	Optional newline- or space-separated list of changed files. When set, the action skips the git diff and uses this list directly. Useful when the caller already has the diff (e.g. `tj-actions/changed-files`).	no	""
manifest-dir	Path (relative to the repository root) to the manifest directory written by `TRACK_TEST_FILES=true bundle exec rails test`.	no	.selective_tests
bundler-cmd	Command used to invoke the CLI. Override when the gem is not installed via bundler (e.g. `selective-tests` if installed globally) or when the caller bundles with a non-default Gemfile.	no	bundle exec selective-tests
strict	When `true`, the action fails if the diff contains any file not present in the manifest. When `false` (default), unknown files are reported on the job log but do not fail the step.	no	false
output-file	Optional path where the list of selected tests will be written, one per line. Useful for piping into a downstream `xargs` step.	no	""

Outputs

name	description
tests	Newline-separated list of selected test files. Empty when no tests are affected, when the manifest is missing, or when the diff is empty.
test-count	Number of test files selected. `0` means no tests are affected and the caller may skip the test job entirely.
manifest-found	`true` when `manifest-dir` contains either a consolidated `manifest.json` or at least one `run-*.ndjson`. `false` means the caller should fall back to running the full suite.
unknown-count	Number of files in the diff that are unknown to the manifest. They are conservatively skipped; bump this number is a signal that the manifest is stale.
diff-file-count	Number of files in the input diff (after git or `changed-files`).