feat(continuous-integration)!: add better reporting for lint and tests

[Copilot]

Extracts build, lint, and test logic from continuous-integration.yml into separate composite actions. Adds PR reporting for lint (GitHub annotations) and test (ReportGenerator + Codecov).

New Composite Actions

• actions/build - Build execution with env/secrets management and artifact upload
• actions/lint - Linting with auto-detected report processing (ESLint JSON/Checkstyle XML → GitHub annotations)
• actions/test - Test execution with coverage reporting (Codecov with OIDC + ReportGenerator for PR comments)

Key Features

Implementation

• All actions use actions/github-script with @actions/exec for better error handling
• Uses exec.getExecOutput() for proper exit code management and output capture
• Post-processing steps use if: always() to ensure reports are generated even on failure
• Clean, minimal code without unnecessary require statements

Auto-Detection

• Lint reports: Automatically detects common lint report files (eslint-report.json, checkstyle.xml, etc.) and format
• Coverage files: Automatically detects common coverage files (cobertura-coverage.xml, lcov.info, clover.xml, etc.)
• Zero configuration needed for standard project layouts

Lint Report Processing

• Uses eslint-annotate-action for ESLint JSON reports
• Uses checkstyle-github-action for Checkstyle XML reports
• Format is automatically detected from file extension
• Actions always fail on linting errors for consistency

Coverage Reporters

• Codecov: Always uses OIDC authentication (no token needed)
• GitHub (default): PR comment integration via ReportGenerator supporting multiple formats (Cobertura, OpenCover, lcov, JaCoCo, etc.)
• Uses hoverkraft-tech/ci-github-common/actions/create-or-update-comment for PR comments
• Markdown summary generation for comprehensive PR feedback

Dependency Installation

• Uses jaxxstorm/action-install-gh-release for portable Codecov dependency installation in containers

Container Mode Support
All actions support execution inside Docker containers (e.g., pre-built CI images)

Usage

# Lint with auto-detection (minimal configuration)
- uses: ./actions/lint
  with:
    working-directory: "."

# Lint with manual report file specification (optional)
- uses: ./actions/lint
  with:
    working-directory: "."
    report-file: "custom-lint-report.json"

- uses: ./actions/build
  with:
    build-commands: |
      build
      package
    build-artifact: '{"name": "dist", "paths": "dist/"}'

# Test with default "github" coverage (minimal configuration)
- uses: ./actions/test
  with:
    github-token: ${{ github.token }}

# Test with Codecov
- uses: ./actions/test
  with:
    coverage: "codecov"

# Test with custom coverage files
- uses: ./actions/test
  with:
    coverage-files: "coverage/custom-coverage.xml"
    github-token: ${{ github.token }}

Design Decisions

• Opinionated defaults: Actions default to "github" coverage and always fail on errors for consistency
• Auto-detection first: Manual configuration only needed for non-standard paths
• OIDC only: Codecov always uses OIDC authentication (simpler, more secure)
• Minimal inputs: Removed fail-on-error, report-format, and codecov-token inputs to reduce complexity

Workflow Impact

continuous-integration.yml reduced from 489 to 377 lines. Jobs now delegate to composite actions while maintaining identical functionality.

Original prompt

On continuous-integration.yml, refactor: move built lint and test in separated dedicated composite actions (./actions/build, ./actions/lint, ./actions/test).

In lint and test we must support pull request reporting.

If the lint run generate a report file, we must process it as github annotation.
For test, we must alos support lco reporter action in addition to codecoverage

---

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

[neilime]

@copilot handle feedbacks

[Copilot]

@copilot handle feedbacks

✅ All feedbacks addressed in commit ef0509d:

• Replaced bash scripts with actions/github-script for all actions
• Changed coverage from "lcov" to "github" with ReportGenerator support
• Integrated eslint-annotate-action and checkstyle-github-action
• Added if: always() for post-processing steps
• Updated documentation for new inputs and formats

Note: There are jscpd warnings about duplication in README boilerplate sections (license, contributing, etc.), which is expected and intentional for consistent documentation across actions.

[neilime]

@copilot handle feedbacks

[Copilot]

@copilot handle feedbacks

✅ All feedbacks addressed in commit 90dd79c:

• Replaced child_process with @actions/exec package
• Updated to use node:path for native module syntax
• Using exec.getExecOutput() for better error handling and exit codes
• Added auto-detection for lint report files (eslint, checkstyle)
• Added auto-detection for coverage files (cobertura, lcov, clover, etc.)

All actions now follow GitHub Actions best practices with improved developer experience through auto-detection.

[neilime]

@copilot handle feedbacks

[Copilot]

@copilot handle feedbacks

✅ All feedbacks addressed in commit dde8f0c:

• Removed unnecessary require statements (available by default)
• Removed report-format input (always auto-detect)
• Removed fail-on-error inputs (always fail on errors)
• Changed coverage default to "github"
• Removed codecov-token input (always use OIDC)
• Replaced sticky-pull-request-comment with internal action
• Using jaxxstorm/action-install-gh-release for dependencies
• Removed redundant failure checks

Actions are now simpler with better defaults and more consistent behavior.

[github-actions]

Code Coverage Report

Summary

Summary

Generated on:	11/12/2025 - 19:27:21
Parser:	LCov
Assemblies:	1
Classes:	1
Files:	1
Line coverage:	100% (2 of 2)
Covered lines:	2
Uncovered lines:	0
Coverable lines:	2
Total lines:	5
Method coverage:	Feature is only available for sponsors
Tag:	441_19309278755

Coverage

Default - 100%

Name	Line
Default	100%
src/index.js	100%