Convert puts_columns to puts Formatter.columns.

Library/Homebrew/cask/lib/hbc/cli/install.rb

@@ -42,12 +42,14 @@ module Hbc
 
       def self.warn_unavailable_with_suggestion(cask_token, e)
         exact_match, partial_matches = Search.search(cask_token)
+        error_message = e.message
         if exact_match
-          onoe e.message.concat(". Did you mean:\n#{exact_match}")
+          error_message.concat(". Did you mean:\n#{exact_match}")
         elsif !partial_matches.empty?
-          onoe e.message.concat(". Did you mean one of:")
-          $stderr.puts_columns(partial_matches.take(20))
+          error_message.concat(". Did you mean one of:\n")
+                       .concat(Formatter.columns(partial_matches.take(20)))
         end
+        onoe error_message
       end
 
       def self.help

Library/Homebrew/cask/lib/hbc/cli/list.rb

@@ -68,7 +68,7 @@ module Hbc
         elsif @options[:versions]
           puts installed_casks.map(&method(:format_versioned))
         else
-          puts_columns installed_casks.map(&:to_s)
+          puts Formatter.columns(installed_casks.map(&:to_s))
         end
 
         installed_casks.empty? ? nil : true

Library/Homebrew/cask/lib/hbc/cli/search.rb

@@ -47,7 +47,7 @@ module Hbc
           else
             ohai "Partial matches"
           end
-          puts_columns partial_matches
+          puts Formatter.columns(partial_matches)
         end
       end
 

Library/Homebrew/cmd/commands.rb

@@ -12,22 +12,22 @@ module Homebrew
       cmds = internal_commands + external_commands
       cmds += internal_developer_commands
       cmds += HOMEBREW_INTERNAL_COMMAND_ALIASES.keys if ARGV.include? "--include-aliases"
-      puts_columns cmds.sort
+      puts Formatter.columns(cmds.sort)
     else
       # Find commands in Homebrew/cmd
       puts "Built-in commands"
-      puts_columns internal_commands
+      puts Formatter.columns(internal_commands)
 
       # Find commands in Homebrew/dev-cmd
       puts
       puts "Built-in developer commands"
-      puts_columns internal_developer_commands
+      puts Formatter.columns(internal_developer_commands)
 
       # Find commands in the path
       unless (exts = external_commands).empty?
         puts
         puts "External commands"
-        puts_columns exts
+        puts Formatter.columns(exts)
       end
     end
   end

Library/Homebrew/cmd/install.rb

@@ -183,7 +183,7 @@ module Homebrew
           puts "To install it, run:\n  brew install #{formulae_search_results.first}"
         else
           puts "These similarly named formulae were found:"
-          puts_columns(formulae_search_results)
+          puts Formatter.columns(formulae_search_results)
           puts "To install one of them, run (for example):\n  brew install #{formulae_search_results.first}"
         end
 
@@ -198,7 +198,7 @@ module Homebrew
           puts "To install it, run:\n  brew install #{taps_search_results.first}"
         else
           puts "These formulae were found in taps:"
-          puts_columns(taps_search_results)
+          puts Formatter.columns(taps_search_results)
           puts "To install one of them, run (for example):\n  brew install #{taps_search_results.first}"
         end
       end

Library/Homebrew/cmd/list.rb

@@ -49,7 +49,7 @@ module Homebrew
           end
         end
         return if full_names.empty?
-        puts_columns full_names
+        puts Formatter.columns(full_names)
       else
         ENV["CLICOLOR"] = nil
         exec "ls", *ARGV.options_only << HOMEBREW_CELLAR

Library/Homebrew/cmd/search.rb

@@ -27,7 +27,7 @@ module Homebrew
 
   def search
     if ARGV.empty?
-      puts_columns Formula.full_names
+      puts Formatter.columns(Formula.full_names)
     elsif ARGV.include? "--macports"
       exec_browser "https://www.macports.org/ports.php?by=name&substr=#{ARGV.next}"
     elsif ARGV.include? "--fink"
@@ -54,14 +54,15 @@ module Homebrew
         result = search_tap(user, repo, name)
       end
 
-      puts_columns Array(result)
+      results = Array(result)
+      puts Formatter.columns(results) unless results.empty?
     else
       query = ARGV.first
       regex = query_regexp(query)
       local_results = search_formulae(regex)
-      puts_columns(local_results) unless local_results.empty?
+      puts Formatter.columns(local_results) unless local_results.empty?
       tap_results = search_taps(regex)
-      puts_columns(tap_results) unless tap_results.empty?
+      puts Formatter.columns(tap_results) unless tap_results.empty?
 
       if $stdout.tty?
         count = local_results.length + tap_results.length

Library/Homebrew/cmd/update-report.rb

@@ -553,7 +553,7 @@ class ReporterHub
     return if formulae.empty?
     # Dump formula list.
     ohai title
-    puts_columns(formulae)
+    puts Formatter.columns(formulae)
   end
 
   def installed?(formula)

Library/Homebrew/cmd/uses.rb

@@ -94,6 +94,6 @@ module Homebrew
     end
 
     return if uses.empty?
-    puts_columns uses.map(&:full_name)
+    puts Formatter.columns(uses.map(&:full_name))
   end
 end

Library/Homebrew/compat/utils.rb

@@ -16,3 +16,8 @@ module Tty
     reset.bold
   end
 end
+
+def puts_columns(items)
+  odeprecated "puts_columns", "puts Formatter.columns"
+  puts Formatter.columns(items)
+end

Library/Homebrew/test/test_utils.rb

@@ -111,7 +111,7 @@ class UtilTests < Homebrew::TestCase
 
   def test_put_columns_empty
     out, err = capture_io do
-      puts_columns []
+      puts Formatter.columns([])
     end
 
     assert_equal out, "\n"

Library/Homebrew/utils.rb

@@ -11,7 +11,6 @@ require "utils/hash"
 require "utils/inreplace"
 require "utils/json"
 require "utils/popen"
-require "utils/puts_columns"
 require "utils/tty"
 
 def ohai(title, *sput)

Library/Homebrew/utils/formatter.rb

@@ -1,3 +1,4 @@
+require "utils/formatter/columns"
 require "utils/tty"
 
 module Formatter

Library/Homebrew/utils/formatter/columns.rb

@@ -1,19 +1,20 @@
 require "utils/tty"
 
-module Kernel
-  def puts_columns(*objects, gap_size: 2)
-    objects.flatten!
+module Formatter
+  module_function
+
+  def columns(*objects, gap_size: 2)
+    objects = objects.flatten.map(&:to_s)
 
     fallback = proc do
-      puts(*objects)
-      return
+      return objects.join("\n").concat("\n")
     end
 
     fallback.call if objects.empty?
     fallback.call if respond_to?(:tty?) ? !tty? : !$stdout.tty?
 
     console_width = Tty.width
-    object_lengths = objects.map { |obj| Tty.strip_ansi(obj.to_s).length }
+    object_lengths = objects.map { |obj| Tty.strip_ansi(obj).length }
     cols = (console_width + gap_size) / (object_lengths.max + gap_size)
 
     fallback.call if cols < 2
@@ -25,6 +26,8 @@ module Kernel
 
     gap_string = "".rjust(gap_size)
 
+    output = ""
+
     rows.times do |row_index|
       item_indices_for_row = row_index.step(objects.size - 1, rows).to_a
 
@@ -35,7 +38,9 @@ module Kernel
       # don't add trailing whitespace to last column
       last = objects.values_at(item_indices_for_row.last)
 
-      puts (first_n + last).join(gap_string)
+      output.concat((first_n + last).join(gap_string)).concat("\n")
     end
+
+    output
   end
 end