CI Fix Generator

Templates and patterns for generating minimal, safe CI configuration fixes.

Fix Generation Principles

1. Minimal Change

• Fix only what's broken
• Don't restructure entire pipeline
• Don't add unrelated improvements
• Preserve existing job structure

2. Safe Change

• Preserve existing behavior
• Maintain security settings
• Keep backward compatibility
• Don't expose secrets

3. Validated Change

• Provide local verification command
• Include rollback instructions
• Test fix before committing

Fix Templates by Category

1. Memory Exhausted

Pattern: Allowed memory size of X bytes exhausted

GitHub Actions Fix:

# .github/workflows/ci.yml
jobs:
  phpstan:
    steps:
      - name: Run PHPStan
        run: php -d memory_limit=-1 vendor/bin/phpstan analyse
        # Alternative: set in phpstan.neon

GitLab CI Fix:

# .gitlab-ci.yml
phpstan:
  variables:
    PHP_MEMORY_LIMIT: "-1"
  script:
    - php -d memory_limit=-1 vendor/bin/phpstan analyse

phpstan.neon Fix:

parameters:
    parallel:
        maximumNumberOfProcesses: 1
        processTimeout: 300.0

2. Composer Conflicts

Pattern: Your requirements could not be resolved

Fix Strategy:

# Diagnose
composer why-not package/name version

# Option 1: Update constraint
composer require package/name:^2.0 --no-update
composer update package/name

# Option 2: Add platform config
# composer.json
{
    "config": {
        "platform": {
            "php": "8.2"
        }
    }
}

# Option 3: Allow specific plugin
{
    "config": {
        "allow-plugins": {
            "plugin/name": true
        }
    }
}

GitHub Actions Fix:

- name: Install dependencies
  run: |
    composer config platform.php 8.2
    composer install --prefer-dist --no-progress
  env:
    COMPOSER_MEMORY_LIMIT: -1

3. PHPStan Baseline

Pattern: PHPStan found X new errors or Baseline outdated

Fix:

# GitHub Actions
- name: Generate PHPStan baseline
  run: |
    vendor/bin/phpstan analyse --generate-baseline
    git add phpstan-baseline.neon

phpstan.neon Fix:

includes:
    - phpstan-baseline.neon

parameters:
    reportUnmatchedIgnoredErrors: false

4. Service Not Ready

Pattern: Connection refused to database/redis/etc.

GitHub Actions Fix:

services:
  mysql:
    image: mysql:8.0
    env:
      MYSQL_ROOT_PASSWORD: root
      MYSQL_DATABASE: test
    ports:
      - 3306:3306
    options: >-
      --health-cmd="mysqladmin ping"
      --health-interval=10s
      --health-timeout=5s
      --health-retries=5

steps:
  - name: Wait for MySQL
    run: |
      until mysqladmin ping -h 127.0.0.1 --silent; do
        echo 'Waiting for MySQL...'
        sleep 2
      done

GitLab CI Fix:

services:
  - name: mysql:8.0
    alias: mysql
    variables:
      MYSQL_ROOT_PASSWORD: root
      MYSQL_DATABASE: test

variables:
  DB_HOST: mysql
  DB_PORT: 3306

.wait-for-db: &wait-for-db
  before_script:
    - |
      until mysqladmin ping -h mysql --silent; do
        echo 'Waiting for MySQL...'
        sleep 2
      done

5. Docker Build Failure

Pattern: COPY failed: file not found or no space left

Dockerfile Fix:

# Check .dockerignore doesn't exclude needed files
# Ensure COPY paths are correct relative to context

# Before:
COPY ./src /app/src

# After (if issue is path):
COPY src/ /app/src/

# For multi-stage builds:
FROM composer:2 AS deps
COPY composer.json composer.lock ./
RUN composer install --no-scripts

FROM php:8.2-fpm
COPY --from=deps /app/vendor /app/vendor

GitHub Actions Fix (space issue):

- name: Free disk space
  run: |
    sudo rm -rf /usr/share/dotnet
    sudo rm -rf /opt/ghc
    docker system prune -af

- name: Build Docker image
  run: docker build -t app .

6. Timeout Issues

Pattern: Job exceeded maximum execution time

GitHub Actions Fix:

jobs:
  test:
    timeout-minutes: 30  # Increase from default 6 hours
    steps:
      - name: Run tests
        timeout-minutes: 20  # Step-level timeout
        run: vendor/bin/phpunit

GitLab CI Fix:

test:
  timeout: 30 minutes
  script:
    - vendor/bin/phpunit --stop-on-failure

PHPUnit Fix:

<!-- phpunit.xml -->
<phpunit
    executionOrder="depends,defects"
    stopOnFailure="true"
    timeoutForSmallTests="1"
    timeoutForMediumTests="10"
    timeoutForLargeTests="60">

7. Permission Denied

Pattern: Permission denied on file operations

GitHub Actions Fix:

- name: Fix permissions
  run: chmod +x ./scripts/*.sh

- name: Run script
  run: ./scripts/deploy.sh

GitLab CI Fix:

before_script:
  - chmod +x ./scripts/*.sh

# Or in Dockerfile:
RUN chmod +x /app/scripts/*.sh

8. Cache Miss

Pattern: Cache not being used, slow installs

GitHub Actions Fix:

- name: Cache Composer dependencies
  uses: actions/cache@v4
  with:
    path: |
      ~/.composer/cache
      vendor
    key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
    restore-keys: |
      ${{ runner.os }}-composer-

- name: Install dependencies
  run: composer install --prefer-dist --no-progress

GitLab CI Fix:

cache:
  key:
    files:
      - composer.lock
  paths:
    - vendor/
  policy: pull-push

variables:
  COMPOSER_CACHE_DIR: "$CI_PROJECT_DIR/.composer-cache"

9. PHP Extension Missing

Pattern: PHP Fatal error: Uncaught Error: Call to undefined function

GitHub Actions Fix:

- name: Setup PHP
  uses: shivammathur/setup-php@v2
  with:
    php-version: '8.2'
    extensions: mbstring, xml, ctype, iconv, intl, pdo_mysql, redis
    coverage: xdebug

Dockerfile Fix:

RUN docker-php-ext-install pdo pdo_mysql
RUN pecl install redis && docker-php-ext-enable redis

10. Environment Variable Missing

Pattern: Undefined environment variable

GitHub Actions Fix:

env:
  APP_ENV: testing
  APP_DEBUG: true
  DB_CONNECTION: mysql

jobs:
  test:
    steps:
      - name: Create .env
        run: cp .env.ci .env

GitLab CI Fix:

variables:
  APP_ENV: testing
  DB_HOST: mysql

# Or use CI/CD variables for secrets
# Settings > CI/CD > Variables

Fix Composition Rules

Order of Operations

1. Identify failure category
2. Match error pattern
3. Select minimal fix
4. Verify fix doesn't break other jobs
5. Provide rollback instructions

What NOT to Change

• Security settings (unless fixing vulnerability)
• Secret management approach
• Existing job names (may break branch protection)
• Trigger conditions (unless causing issue)

Commit Message Format

fix(ci): <short description>

<detailed description of what was wrong and how it's fixed>

Issue: <link if applicable>

Verification Commands

Local Testing

# GitHub Actions - act
act -j <job-name>

# GitLab CI - gitlab-runner
gitlab-runner exec docker <job-name>

# Docker build
docker build -t test-image .

# Composer
composer install --dry-run

# PHPStan
vendor/bin/phpstan analyse --debug

Rollback Instructions

For any CI fix, provide rollback:

# If fix causes issues, revert with:
git revert HEAD
# Or restore previous version:
git checkout HEAD~1 -- .github/workflows/ci.yml