[DOC] Extract tool/update-NEWS-gemlist.rb

Merged: https://github.com/ruby/ruby/pull/7104

.github/workflows/bundled_gems.yml

@@ -56,35 +56,7 @@ jobs:
 
       - name: Maintain updated gems list in NEWS
         run: |
-          #!ruby
+          ruby tool/update-NEWS-gemlist.rb bundled
-          require 'json'
-          news = File.read("NEWS.md")
-          prev = news[/since the \*+(\d+\.\d+\.\d+)\*+/, 1]
-          prevs = [prev, prev.sub(/\.\d+\z/, '')]
-          %W[bundled].each do |type|
-            last = JSON.parse(File.read("#{type}_gems.json"))['gems'].filter_map do |g|
-              v = g['versions'].values_at(*prevs).compact.first
-              g = g['gem']
-              g = 'RubyGems' if g == 'rubygems'
-              [g, v] if v
-            end.to_h
-            changed = File.foreach("gems/#{type}_gems").filter_map do |l|
-              next if l.start_with?("#")
-              g, v = l.split(" ", 3)
-              [g, v] unless last[g] == v
-            end
-            changed, added = changed.partition {|g, _| last[g]}
-            news.sub!(/^\*( +)The following #{type} gems? are updated\.\n+\K(?: \1\*( +).*\n)*/) do
-              mark = "#{$1} *#{$2}"
-              changed.map {|g, v|"#{mark}#{g} #{v}\n"}.join("")
-            end or next
-            news.sub!(/^\*( +)The following default gems are now bundled gems\.\n+\K(?: \1\*( +).*\n)*/) do
-              mark = "#{$1} *#{$2}"
-              added.map {|g, v|"#{mark}#{g} #{v}\n"}.join("")
-            end or next unless added.empty?
-            File.write("NEWS.md", news)
-          end
-        shell: ruby {0}
 
       - name: Check diffs
         id: diff

.github/workflows/check_misc.yml

@@ -66,30 +66,7 @@ jobs:
 
       - name: Maintain updated gems list in NEWS
         run: |
-          #!ruby
+          ruby tool/update-NEWS-gemlist.rb default
-          require 'json'
-          news = File.read("NEWS.md")
-          prev = news[/since the \*+(\d+\.\d+\.\d+)\*+/, 1]
-          prevs = [prev, prev.sub(/\.\d+\z/, '')]
-          %W[default].each do |type|
-            last = JSON.parse(File.read("#{type}_gems.json"))['gems'].filter_map do |g|
-              v = g['versions'].values_at(*prevs).compact.first
-              g = g['gem']
-              g = 'RubyGems' if g == 'rubygems'
-              [g, v] if v
-            end.to_h
-            changed = File.foreach("gems/#{type}_gems").filter_map do |l|
-              next if l.start_with?("#")
-              g, v = l.split(" ", 3)
-              [g, v] unless last[g] == v
-            end
-            news.sub!(/^\*( +)The following #{type} gems? are updated\.\n+\K(?: \1\* .*\n)*/) do
-              mark = "#{$1} * "
-              changed.map {|g, v|"#{mark}#{g} #{v}\n"}.join("")
-            end or next
-            File.write("NEWS.md", news)
-          end
-        shell: ruby {0}
 
       - name: Check diffs
         id: diff

tool/update-NEWS-gemlist.rb

@@ -0,0 +1,34 @@
+#!/usr/bin/ruby
+require 'json'
+news = File.read("NEWS.md")
+prev = news[/since the \*+(\d+\.\d+\.\d+)\*+/, 1]
+prevs = [prev, prev.sub(/\.\d+\z/, '')]
+
+update = ->(list, type, desc = "updated") do
+  news.sub!(/^\*( +)The following #{type} gems? (?:are|is) #{desc}\.\n(\n*)\K(?: \1\*( +).*\n)*\n*/) do
+    mark = "#{$1&.<< " "}*#{$3 || ' '}"
+    list.map {|g, v|"#{mark}#{g} #{v}\n"}.join("") + $2
+  end
+end
+ARGV.each do |type|
+  last = JSON.parse(File.read("#{type}_gems.json"))['gems'].filter_map do |g|
+    v = g['versions'].values_at(*prevs).compact.first
+    g = g['gem']
+    g = 'RubyGems' if g == 'rubygems'
+    [g, v] if v
+  end.to_h
+  changed = File.foreach("gems/#{type}_gems").filter_map do |l|
+    next if l.start_with?("#")
+    g, v = l.split(" ", 3)
+    next unless v
+    [g, v] unless last[g] == v
+  end
+  if type == 'bundled'
+    changed, added = changed.partition {|g, _| last[g]}
+  end
+  update[changed, type] or next
+  if added and !added.empty?
+    update[added, 'default', 'now bundled gems'] or next
+  end
+  File.write("NEWS.md", news)
+end