cmd/info: show size information

Co-authored-by: Mike McQuaid <mike@mikemcquaid.com>
Co-authored-by: Markus Reiter <me@reitermark.us>

Library/Homebrew/cmd/info.rb

@@ -45,6 +45,8 @@ class Info < AbstractCommand
         switch "--github",
                description: "Open the GitHub source page for <formula> and <cask> in a browser. " \
                             "To view the history locally: `brew log -p` <formula> or <cask>"
+        switch "--github-manifest",
+               description: "Fetch GitHub package manifest for extra information when <formula> is not installed."
         flag   "--json",
                description: "Print a JSON representation. Currently the default value for <version> is `v1` for " \
                             "<formula>. For <formula> and <cask> use `v2`. See the docs for examples of using the " \
@@ -303,6 +305,17 @@ def info_formula(formula)
         ]
         if kegs.empty?
           puts "Not installed"
+          if args.github_manifest? && !(bottle = formula.bottle).nil?
+            begin
+              bottle.fetch_tab(quiet: !args.debug?)
+              bottle_size = bottle.bottle_size
+              puts "Bottle size: #{disk_usage_readable(bottle_size)}" if bottle_size
+              installed_size = bottle.installed_size
+              puts "Installed size: #{disk_usage_readable(installed_size)}" if installed_size
+            rescue RuntimeError => e
+              odebug e
+            end
+          end
         else
           puts "Installed"
           kegs.each do |keg|

Library/Homebrew/resource.rb

@@ -306,6 +306,7 @@ class Error < RuntimeError; end
     def initialize(bottle)
       super("#{bottle.name}_bottle_manifest")
       @bottle = bottle
+      @manifest_annotations = nil
     end
 
     def verify_download_integrity(_filename)
@@ -314,6 +315,29 @@ def verify_download_integrity(_filename)
     end
 
     def tab
+      tab = manifest_annotations["sh.brew.tab"]
+      raise Error, "Couldn't find tab from manifest." if tab.blank?
+
+      begin
+        JSON.parse(tab)
+      rescue JSON::ParserError
+        raise Error, "Couldn't parse tab JSON."
+      end
+    end
+
+    def bottle_size
+      manifest_annotations["sh.brew.bottle.size"]&.to_i
+    end
+
+    def installed_size
+      manifest_annotations["sh.brew.bottle.installed_size"]&.to_i
+    end
+
+    private
+
+    def manifest_annotations
+      return @manifest_annotations if @manifest_annotations.present?
+
       json = begin
         JSON.parse(cached_download.read)
       rescue JSON::ParserError
@@ -336,14 +360,7 @@ def tab
       end
       raise Error, "Couldn't find manifest matching bottle checksum." if manifest_annotations.blank?
 
-      tab = manifest_annotations["sh.brew.tab"]
-      raise Error, "Couldn't find tab from manifest." if tab.blank?
-
-      begin
-        JSON.parse(tab)
-      rescue JSON::ParserError
-        raise Error, "Couldn't parse tab JSON."
-      end
+      @manifest_annotations = manifest_annotations
     end
   end
 

Library/Homebrew/software_spec.rb

@@ -436,6 +436,20 @@ def tab_attributes
     {}
   end
 
+  sig { returns(T.nilable(Integer)) }
+  def bottle_size
+    return unless (resource = github_packages_manifest_resource)&.downloaded?
+
+    resource.bottle_size
+  end
+
+  sig { returns(T.nilable(Integer)) }
+  def installed_size
+    return unless (resource = github_packages_manifest_resource)&.downloaded?
+
+    resource.installed_size
+  end
+
   sig { returns(Filename) }
   def filename
     Filename.create(resource.owner, @tag, @spec.rebuild)