analytics: move to a class.

Global namespaces are good to avoid when possible.

Library/Homebrew/formula_installer.rb

@@ -204,7 +204,7 @@ class FormulaInstaller
 
     if formula.tap && !formula.tap.private?
       options = effective_build_options_for(formula).used_options.to_a.join(" ")
-      report_analytics_event("install", "#{formula.full_name} #{options}".strip)
+      Utils::Analytics.report_event("install", "#{formula.full_name} #{options}".strip)
     end
 
     @@attempted << formula

Library/Homebrew/utils/analytics.rb

@@ -1,67 +1,73 @@
-def analytics_label
-  @analytics_anonymous_prefix_and_os ||= begin
-    os = OS_VERSION
-    prefix = ", non-/usr/local" if HOMEBREW_PREFIX.to_s != "/usr/local"
-    ci = ", CI" if ENV["CI"]
-    "#{os}#{prefix}#{ci}"
-  end
-end
+module Utils
+  module Analytics
+    class << self
+      def os_prefix_ci
+        @anonymous_os_prefix_ci ||= begin
+          os = OS_VERSION
+          prefix = ", non-/usr/local" if HOMEBREW_PREFIX.to_s != "/usr/local"
+          ci = ", CI" if ENV["CI"]
+          "#{os}#{prefix}#{ci}"
+        end
+      end
 
-def report_analytics(type, metadata = {})
-  return if ENV["HOMEBREW_NO_ANALYTICS"] || ENV["HOMEBREW_NO_ANALYTICS_THIS_RUN"]
+      def report(type, metadata = {})
+        return if ENV["HOMEBREW_NO_ANALYTICS"] || ENV["HOMEBREW_NO_ANALYTICS_THIS_RUN"]
 
-  args = %W[
-    --max-time 3
-    --user-agent #{HOMEBREW_USER_AGENT_CURL}
-    -d v=1
-    -d tid=#{ENV["HOMEBREW_ANALYTICS_ID"]}
-    -d cid=#{ENV["HOMEBREW_ANALYTICS_USER_UUID"]}
-    -d aip=1
-    -d an=#{HOMEBREW_PRODUCT}
-    -d av=#{HOMEBREW_VERSION}
-    -d t=#{type}
-  ]
-  metadata.each { |k, v| args << "-d" << "#{k}=#{v}" if k && v }
+        args = %W[
+          --max-time 3
+          --user-agent #{HOMEBREW_USER_AGENT_CURL}
+          -d v=1
+          -d tid=#{ENV["HOMEBREW_ANALYTICS_ID"]}
+          -d cid=#{ENV["HOMEBREW_ANALYTICS_USER_UUID"]}
+          -d aip=1
+          -d an=#{HOMEBREW_PRODUCT}
+          -d av=#{HOMEBREW_VERSION}
+          -d t=#{type}
+        ]
+        metadata.each { |k, v| args << "-d" << "#{k}=#{v}" if k && v }
 
-  # Send analytics. Don't send or store any personally identifiable information.
-  # https://github.com/Homebrew/brew/blob/master/share/doc/homebrew/Analytics.md
-  # https://developers.google.com/analytics/devguides/collection/protocol/v1/devguide
-  # https://developers.google.com/analytics/devguides/collection/protocol/v1/parameters
-  if ENV["HOMEBREW_ANALYTICS_DEBUG"]
-    puts Utils.popen_read ENV["HOMEBREW_CURL"],
-      "https://www.google-analytics.com/debug/collect",
-      *args
-  else
-    pid = fork do
-      exec ENV["HOMEBREW_CURL"],
-        "https://www.google-analytics.com/collect",
-        "--silent", "--output", "/dev/null",
-        *args
+        # Send analytics. Don't send or store any personally identifiable information.
+        # https://github.com/Homebrew/brew/blob/master/share/doc/homebrew/Analytics.md
+        # https://developers.google.com/analytics/devguides/collection/protocol/v1/devguide
+        # https://developers.google.com/analytics/devguides/collection/protocol/v1/parameters
+        if ENV["HOMEBREW_ANALYTICS_DEBUG"]
+          puts Utils.popen_read ENV["HOMEBREW_CURL"],
+            "https://www.google-analytics.com/debug/collect",
+            *args
+        else
+          pid = fork do
+            exec ENV["HOMEBREW_CURL"],
+              "https://www.google-analytics.com/collect",
+              "--silent", "--output", "/dev/null",
+              *args
+          end
+          Process.detach pid
+        end
+      end
+
+      def report_event(category, action, label = os_prefix_ci, value = nil)
+        report(:event,
+          :ec => category,
+          :ea => action,
+          :el => label,
+          :ev => value)
+      end
+
+      def report_exception(exception, options = {})
+        if exception.is_a?(BuildError) &&
+           exception.formula.tap && !exception.formula.tap.private?
+          report_event("BuildError", exception.formula.full_name)
+        end
+
+        fatal = options.fetch(:fatal, true) ? "1" : "0"
+        report(:exception,
+          :exd => exception.class.name,
+          :exf => fatal)
+      end
+
+      def report_screenview(screen_name)
+        report(:screenview, :cd => screen_name)
+      end
     end
-    Process.detach pid
   end
 end
-
-def report_analytics_event(category, action, label = analytics_label, value = nil)
-  report_analytics(:event,
-    :ec => category,
-    :ea => action,
-    :el => label,
-    :ev => value)
-end
-
-def report_analytics_exception(exception, options = {})
-  if exception.is_a?(BuildError) &&
-     exception.formula.tap && !exception.formula.tap.private?
-    report_analytics_event("BuildError", exception.formula.full_name)
-  end
-
-  fatal = options.fetch(:fatal, true) ? "1" : "0"
-  report_analytics(:exception,
-    :exd => exception.class.name,
-    :exf => fatal)
-end
-
-def report_analytics_screenview(screen_name)
-  report_analytics(:screenview, :cd => screen_name)
-end

Library/brew.rb

@@ -129,17 +129,17 @@ rescue Interrupt => e
   $stderr.puts # seemingly a newline is typical
   exit 130
 rescue BuildError => e
-  report_analytics_exception(e)
+  Utils::Analytics.report_exception(e)
   e.dump
   exit 1
 rescue RuntimeError, SystemCallError => e
-  report_analytics_exception(e)
+  Utils::Analytics.report_exception(e)
   raise if e.message.empty?
   onoe e
   $stderr.puts e.backtrace if ARGV.debug?
   exit 1
 rescue Exception => e
-  report_analytics_exception(e)
+  Utils::Analytics.report_exception(e)
   onoe e
   if internal_cmd
     $stderr.puts "#{Tty.white}Please report this bug:"