Add support for running changelog checks without GitHub API token#65
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dblock merged 3 commits intodblock:masterfrom Dec 9, 2025
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Add support for running changelog checks without GitHub API token#65dblock merged 3 commits intodblock:masterfrom
dblock merged 3 commits intodblock:masterfrom
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Introduce PRMetadata class to extract PR information from multiple sources: - GITHUB_EVENT_PATH (GitHub Actions, no token required) - GitHub plugin (traditional Danger with token) - Fallback example data (local/dry_run) This allows running `danger dry_run` in GitHub Actions workflows without requiring GITHUB_TOKEN for changelog validation.
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Use 'danger dry_run' which doesn't require GitHub API authentication. In dry_run mode, the github plugin is unavailable (returns nil), allowing the danger-changelog plugin to use GITHUB_EVENT_PATH for PR metadata. This achieves the goal of PR dblock#65 (github-tokenless-fallback) - running changelog checks without needing any API token or external authentication. The graceful error handling in PRMetadata.from_github_plugin ensures the fallback chain works correctly when github plugin is unavailable.
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Summary
PRMetadataclass to extract PR information from multiple sources:GITHUB_EVENT_PATH(GitHub Actions), thegithubDanger plugin, or fallback example valuesdanger dry_runin GitHub Actions without requiringGITHUB_TOKENorDANGER_GITHUB_API_TOKENMotivation
When running
bundle exec danger dry_run --base=$BASE_SHA --head=$HEAD_SHAin GitHub Actions, thegithubplugin is unavailable (usesLocalOnlyrequest source). Previously, this caused errors when generating changelog entry examples.Now the plugin reads PR metadata from
GITHUB_EVENT_PATHfirst (always available in GitHub Actions without token), then falls back to the github plugin, and finally uses example placeholder values.This is a part of preparation for ruby-grape/grape#2630 as a part of ruby-grape/grape#2632