Update supported versions workflow (#4326)

Co-authored-by: Sergey Fedorov <[email protected]>

Author: quinna-h

.github/scripts/generate_table_versions.rb

@@ -14,6 +14,13 @@ class GemfileProcessor
   EXCLUDED_INTEGRATIONS = ["configuration", "propagation", "utils"].freeze
 
   def initialize(directory: 'gemfiles/', contrib_dir: 'lib/datadog/tracing/contrib/')
+    unless Dir.exist?(directory)
+      warn("Directory #{directory} does not exist")
+    end
+  
+    unless Dir.exist?(contrib_dir)
+      warn("Directory #{contrib_dir} does not exist")
+    end  
     @directory = directory
     @contrib_dir = contrib_dir
     @min_gems = { 'ruby' => {}, 'jruby' => {} }
@@ -25,7 +32,7 @@ def process
     parse_gemfiles
     process_integrations
     include_hardcoded_versions
-    write_output
+    write_markdown_output
   end
 
   private
@@ -106,18 +113,18 @@ def process_integrations
   def include_hardcoded_versions
       # `httpx` is maintained externally
     @integration_json_mapping['httpx'] = [
-      '0.11',         # Min version Ruby
-      'infinity',     # Max version Ruby
-      '0.11',         # Min version JRuby
-      'infinity'      # Max version JRuby
+      '[3rd-party support](https://honeyryderchuck.gitlab.io/httpx/)',         # Min version Ruby
+      '[3rd-party support](https://honeyryderchuck.gitlab.io/httpx/)',     # Max version Ruby
+      '[3rd-party support](https://honeyryderchuck.gitlab.io/httpx/)',         # Min version JRuby
+      '[3rd-party support](https://honeyryderchuck.gitlab.io/httpx/)',      # Max version JRuby
     ]
 
     # `makara` is part of `activerecord`
     @integration_json_mapping['makara'] = [
-      '0.3.5',        # Min version Ruby
-      'infinity',     # Max version Ruby
-      '0.3.5',        # Min version JRuby
-      'infinity'      # Max version JRuby
+      '0.5.1',        # Min version Ruby
+      '0.5.1',     # Max version Ruby
+      '0.5.1',        # Min version JRuby
+      '0.5.1'      # Max version JRuby
     ]
   end
 
@@ -131,10 +138,60 @@ def resolve_integration_name(integration)
     integration
   end
 
-  def write_output
-    @integration_json_mapping = @integration_json_mapping.sort.to_h
-    File.write("gem_output.json", JSON.pretty_generate(@integration_json_mapping))
+  def write_markdown_output
+    output_file = 'docs/integration_versions.md'
+    comment = <<~COMMENT
+      <!--
+      # Please do NOT manually edit this file.
+      # This file is generated by `bundle exec ruby .github/scripts/update_supported_versions.rb`
+
+      ### Supported Versions Table ###
+  
+      This markdown file is generated from the minimum and maximum versions of the integrations we support, as tested in our `gemfile.lock` lockfiles.
+      For a list of available integrations, and their supported version ranges, refer to the following:
+      -->
+    COMMENT
+    column_widths = {
+      integration: 24,
+      ruby_min: 19,
+      ruby_max: 19,
+      jruby_min: 19,
+      jruby_max: 19
+    }
+    columns = {
+      integration: "Integration",
+      ruby_min: "Ruby Min",
+      ruby_max: "Ruby Max",
+      jruby_min: "JRuby Min",
+      jruby_max: "JRuby Max"
+    }
+
+    adjusted_widths = columns.transform_values.with_index do |title, index|
+      [title.length, column_widths.values[index]].max
+    end
+
+    header = "| " + columns.map { |key, title| title.ljust(adjusted_widths[key]) }.join(" | ") + " |"
+    separator = "|-" + adjusted_widths.map { |_, width| "-" * width }.join("-|-") + "-|"
+    rows = @integration_json_mapping
+          .sort_by { |name, _versions| name.downcase }
+          .map do |name, versions|
+      integration_name = name.ljust(column_widths[:integration])
+      ruby_min = (versions[0] || "None").ljust(column_widths[:ruby_min])
+      ruby_max = (versions[1] == 'infinity' ? 'latest' : versions[1] || 'None').ljust(column_widths[:ruby_max])
+      jruby_min = (versions[2] || "None").ljust(column_widths[:jruby_min])
+      jruby_max = (versions[3] == 'infinity' ? 'latest' : versions[3] || 'None').ljust(column_widths[:jruby_max])
+  
+      "| #{integration_name} | #{ruby_min} | #{ruby_max} | #{jruby_min} | #{jruby_max} |"
+    end
+  
+    File.open(output_file, 'w') do |file|
+      file.puts comment
+      file.puts header
+      file.puts separator
+      rows.each { |row| file.puts row }
+    end
   end
 end
 
+
 GemfileProcessor.new.process

.github/scripts/find_gem_version_bounds.rb renamed to .github/scripts/update_supported_versions.rb

@@ -24,10 +24,7 @@ jobs:
           ruby-version: "3.3"
 
       - name: Update latest
-        run: bundle exec ruby .github/scripts/find_gem_version_bounds.rb
-
-      - name: Generate versions table
-        run: ruby .github/scripts/generate_table_versions.rb
+        run: bundle exec ruby .github/scripts/update_supported_versions.rb
 
       - run: git diff
 
@@ -44,6 +41,10 @@ jobs:
           delete-branch: true
           body: |
             This is a PR to update the table for supported integration versions.
+            The supported versions markdown is generated from the minimum and maximum tested versions of each integration,
+            as defined from the `gemfile.lock` gem declarations.
+
             Workflow run: [Generate Supported Versions](https://github.com/DataDog/dd-trace-rb/actions/workflows/generate-supported-versions.yml)
+            
             This should be tied to tracer releases, or triggered manually.