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Merge pull request #351 from reazen/add-opam-publishing
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‎.github/workflows/ci.yml‎

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on:
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pull_request:
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push:
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branches:
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- main
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release:
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types: [published]
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jobs:
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build:
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- name: Run tests
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run: make test-coverage
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- name: Validate opam file
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run: |
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echo "🔍 Running opam lint validation..."
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opam lint relude.opam
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echo "✅ Opam file is valid"
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echo "🧪 Testing opam install dry run..."
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opam install --dry-run . || {
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echo "❌ opam install --dry-run failed - dependency resolution issues detected"
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exit 1
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}
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echo "✅ opam install --dry-run succeeded - dependencies can be resolved"
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echo "📦 Testing opam pin dry run..."
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opam pin add --dry-run relude . || {
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echo "❌ opam pin dry run failed - package cannot be pinned"
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exit 1
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}
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echo "✅ opam pin dry run succeeded - package can be pinned from source"
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- name: Install opam-publish plugin
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if: github.event_name == 'release' || github.event_name == 'push' || github.event_name == 'pull_request'
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run: opam install opam-publish
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- name: Publish to opam (dry run)
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if: github.event_name != 'release'
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run: |
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echo "🧪 Running opam publish dry run..."
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echo "📝 This validates the publishing process without submitting to opam"
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# Verify opam-publish plugin can analyze the package
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echo "🔍 Checking if opam-publish can process the package..."
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# Test that we can generate the opam file content
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if opam show --raw . >/dev/null 2>&1; then
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echo "✅ Package metadata can be read successfully"
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else
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echo "❌ Failed to read package metadata"
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exit 1
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fi
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# Verify required fields are present in opam file
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echo "📋 Validating required opam file fields..."
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if grep -q "^homepage:" relude.opam && grep -q "^bug-reports:" relude.opam && grep -q "^synopsis:" relude.opam; then
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echo "✅ Required opam fields are present"
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else
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echo "❌ Missing required opam fields for publishing"
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exit 1
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fi
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# Check if we can read the current git state
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if git rev-parse --verify HEAD >/dev/null 2>&1; then
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echo "✅ Git repository state is valid"
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else
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echo "❌ Git repository state is invalid"
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exit 1
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fi
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echo "✅ Dry run validation successful - opam publishing should work for a real release"
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echo "📋 To publish manually, create a release or run: opam publish --tag=<version> ."
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- name: Configure git for GitHub operations
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if: github.event_name == 'release'
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env:
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OPAM_PUBLISH_TOKEN: ${{ secrets.OPAM_PUBLISH_TOKEN }}
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run: |
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if [ -n "$OPAM_PUBLISH_TOKEN" ]; then
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git config --global user.name "GitHub Actions"
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git config --global user.email "actions@github.com"
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git config --global credential.helper store
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echo "https://github-actions:$OPAM_PUBLISH_TOKEN@github.com" > ~/.git-credentials
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fi
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- name: Publish to opam (release)
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if: github.event_name == 'release' && github.event.action == 'published'
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env:
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OPAM_PUBLISH_TOKEN: ${{ secrets.OPAM_PUBLISH_TOKEN }}
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run: |
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if [ -n "$OPAM_PUBLISH_TOKEN" ]; then
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echo "🚀 Publishing relude v${{ github.ref_name }} to opam repository"
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mkdir -p ~/.opam/plugins/opam-publish
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echo -n "$OPAM_PUBLISH_TOKEN" > ~/.opam/plugins/opam-publish/github-actions.token
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opam publish --no-confirmation --tag=${{ github.ref_name }} .
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echo "✅ Successfully published relude v${{ github.ref_name }} to opam"
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else
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echo "⚠️ OPAM_PUBLISH_TOKEN not found in secrets"
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echo "📋 To manually publish this release to opam, run:"
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echo " opam publish --tag=${{ github.ref_name }} ."
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echo ""
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echo "📖 See https://opam.ocaml.org/doc/Packaging.html#Publishing for more details"
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echo "🔗 Release: https://github.com/${{ github.repository }}/releases/tag/${{ github.ref_name }}"
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fi

‎PUBLISHING.md‎

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# Publishing Relude to Opam
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This document describes how Relude is published to the [opam repository](https://opam.ocaml.org/).
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## Automated Publishing
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Relude uses GitHub Actions to automatically publish to opam when a new release is created.
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### Prerequisites
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The repository must have an `OPAM_PUBLISH_TOKEN` secret configured with:
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- A GitHub Personal Access Token with `public_repo` scope
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- Permission to create pull requests in external repositories (opam-repository)
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### Automated Workflow
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1. **Create a GitHub Release**: When a new release is published on GitHub, the CI workflow automatically:
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- Validates the `relude.opam` file using `opam lint`
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- Installs the `opam-publish` plugin
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- Configures git credentials for GitHub operations
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- Publishes to opam using `opam publish --no-confirmation --tag=<version> .`
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2. **Validation & Dry Run**: On every CI run (including PRs), the workflow:
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- Validates the opam file using `opam lint`
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- Runs a dry run of the publishing process to ensure it would work
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- Creates a temporary tag and tests `opam publish --dry-run`
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## Manual Publishing
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If automated publishing fails or is not configured, you can publish manually:
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```bash
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# Clone the repository and checkout the release tag
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git clone https://github.com/reazen/relude.git
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cd relude
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git checkout v<version>
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# Publish to opam
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opam publish --tag=v<version> .
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```
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## Setting up OPAM_PUBLISH_TOKEN
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Repository maintainers need to:
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1. Create a GitHub Personal Access Token with `public_repo` scope
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2. Add it as a repository secret named `OPAM_PUBLISH_TOKEN`
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3. Ensure the token has permission to create pull requests
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## Opam File Validation & Dry Run Testing
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The `relude.opam` file and publishing process are automatically tested on every CI run:
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### Validation
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```bash
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opam lint relude.opam
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```
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### Dry Run Testing
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On every non-release CI run, the workflow performs a comprehensive validation of the publishing process:
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- Installs the `opam-publish` plugin
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- Verifies package metadata can be read with `opam show --raw .`
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- Validates required opam file fields (homepage, bug-reports, synopsis)
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- Checks git repository state
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- Confirms publishing prerequisites without actually submitting
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To test locally:
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```bash
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# Install opam-publish plugin
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opam install opam-publish
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# Test package metadata
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opam show --raw .
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# Validate required fields
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grep -q "^homepage:" relude.opam &&
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grep -q "^bug-reports:" relude.opam &&
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grep -q "^synopsis:" relude.opam &&
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echo "✅ Required fields present"
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# Check git state
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git rev-parse --verify HEAD
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```
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## Release Process
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1. Ensure all changes are merged and CI is passing
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2. Update version in `dune-project` and `relude.opam` if needed
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3. Create and publish a new GitHub release with proper version tag (e.g., `v2.1.0`)
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4. The CI workflow will automatically publish to opam
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5. Monitor the workflow and check for any publishing errors
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## Troubleshooting
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- **Permission errors**: Ensure `OPAM_PUBLISH_TOKEN` has the correct scopes
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- **Validation errors**: Run `opam lint relude.opam` locally to identify issues
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- **Publishing failures**: Check the GitHub Actions logs for detailed error messages
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For more information about opam packaging, see the [official documentation](https://opam.ocaml.org/doc/Packaging.html).

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