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Fetch gem changelogs based on Gemfile.lock diff, you can update gems in Gemfile.lock, then run `bundle exec ruby fetch_gem_changelogs.rb | more`
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| require 'bundler' | |
| require 'net/http' | |
| require 'json' | |
| require 'uri' | |
| # Function to fetch gem information from RubyGems.org | |
| def fetch_gem_info(gem_name) | |
| url = URI("https://rubygems.org/api/v1/gems/#{gem_name}.json") | |
| response = Net::HTTP.get_response(url) | |
| if response.is_a?(Net::HTTPSuccess) | |
| JSON.parse(response.body) | |
| else | |
| nil | |
| end | |
| end | |
| # Function to extract updated gems from `git diff` | |
| def updated_gems | |
| diff_output = `git diff Gemfile.lock` | |
| gems = {} | |
| diff_output.each_line do |line| | |
| if line.match(/^\-\s+(\S+)\s+\((\d+\.\d+\.\d+)\)/) | |
| gem_name, old_version = line.match(/^\-\s+(\S+)\s+\((\d+\.\d+\.\d+)\)/).captures | |
| gems[gem_name] ||= {} | |
| gems[gem_name][:old] = old_version | |
| elsif line.match(/^\+\s+(\S+)\s+\((\d+\.\d+\.\d+)\)/) | |
| gem_name, new_version = line.match(/^\+\s+(\S+)\s+\((\d+\.\d+\.\d+)\)/).captures | |
| gems[gem_name] ||= {} | |
| gems[gem_name][:new] = new_version | |
| end | |
| end | |
| gems.select { |_, versions| versions[:old] && versions[:new] } | |
| end | |
| # Function to fetch and display relevant CHANGELOG sections | |
| def fetch_and_display_changelog(gem_name, old_version, new_version, changelog_url, source_code_url) | |
| # Check if the changelog_url is not on GitHub | |
| unless changelog_url.include?('github.com') | |
| # If source_code_url is on GitHub, construct the GitHub CHANGELOG URL | |
| if source_code_url && source_code_url.include?('github.com') | |
| changelog_url = "#{source_code_url}/blob/main/CHANGELOG.md" | |
| else | |
| puts "#{gem_name}: The changelog is not available on GitHub and no fallback could be constructed." | |
| return | |
| end | |
| end | |
| # Convert GitHub URL to raw URL if needed | |
| if changelog_url.include?('github.com') && !changelog_url.include?('/raw/') | |
| changelog_url = changelog_url.gsub('github.com', 'raw.githubusercontent.com').gsub('/blob/', '/') | |
| end | |
| uri = URI(changelog_url) | |
| response = Net::HTTP.get_response(uri) | |
| if response.is_a?(Net::HTTPSuccess) | |
| changelog_content = response.body | |
| extract_relevant_changelog(gem_name, old_version, new_version, changelog_content) | |
| else | |
| puts "#{gem_name}: Failed to fetch CHANGELOG from #{changelog_url}" | |
| end | |
| end | |
| # Function to extract relevant section from the CHANGELOG content | |
| def extract_relevant_changelog(gem_name, old_version, new_version, changelog_content) | |
| puts "\n====================================================\n" | |
| puts "#{gem_name} - Changes from version #{old_version} to #{new_version}:\n\n" | |
| # Refined regex to match version headers more accurately | |
| version_section_regex = /^##?.*\s*v?(\d+\.\d+\.\d+)/i | |
| lines = changelog_content.lines | |
| relevant_lines = [] | |
| capturing = false | |
| lines.each do |line| | |
| if line.match(version_section_regex) | |
| version = line.match(version_section_regex)[1] | |
| if Gem::Version.new(version) <= Gem::Version.new(new_version) && Gem::Version.new(version) > Gem::Version.new(old_version) | |
| capturing = true | |
| elsif Gem::Version.new(version) <= Gem::Version.new(old_version) | |
| capturing = false | |
| end | |
| end | |
| relevant_lines << line if capturing | |
| end | |
| if relevant_lines.empty? | |
| puts "No specific changelog entries found between versions #{old_version} and #{new_version}." | |
| else | |
| puts relevant_lines.join | |
| end | |
| end | |
| # Fetch updated gems list | |
| gems_to_check = updated_gems | |
| if gems_to_check.empty? | |
| puts "No updated gems found in git diff." | |
| else | |
| gems_to_check.each do |gem_name, versions| | |
| gem_info = fetch_gem_info(gem_name) | |
| if gem_info | |
| changelog_url = gem_info['changelog_uri'] | |
| source_code_url = gem_info['source_code_uri'] | |
| if changelog_url | |
| fetch_and_display_changelog(gem_name, versions[:old], versions[:new], changelog_url, source_code_url) | |
| elsif source_code_url && source_code_url.include?('github.com') | |
| fetch_and_display_changelog(gem_name, versions[:old], versions[:new], "#{source_code_url}/blob/main/CHANGELOG.md", source_code_url) | |
| else | |
| puts "#{gem_name}: No changelog or source code URL found on RubyGems.org" | |
| end | |
| else | |
| puts "#{gem_name}: Failed to fetch gem information from RubyGems.org" | |
| end | |
| end | |
| end |
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