commands: support list all commands without header

2 files changed, 31 insertions, 19 deletions

diff --git a/Library/Homebrew/cmd/commands.rb b/Library/Homebrew/cmd/commands.rb
index aefc7e30e..a41099982 100644
--- a/Library/Homebrew/cmd/commands.rb
+++ b/Library/Homebrew/cmd/commands.rb
@@ -1,24 +1,33 @@
 module Homebrew
   def commands
-    # Find commands in Homebrew/cmd
-    with_directory = false
-    cmds = (HOMEBREW_REPOSITORY/"Library/Homebrew/cmd").
-           children(with_directory).
-           map {|f| File.basename(f, '.rb')}
-    puts "Built-in commands"
-    puts_columns cmds
-
-    # Find commands in the path
-    exts =  paths.map{ |p| Dir["#{p}/*"] }.flatten.
-            map{    |f| File.basename f }.
-            select{ |f| f =~ /^brew-(.+)/ }.
-            map{    |f| File.basename(f, '.rb')[5..-1] }.
-            reject{ |f| f =~ /\./ }
+    if ARGV.include? "--quiet"
+      cmds = internal_commands + external_commands
+      cmds += HOMEBREW_INTERNAL_COMMAND_ALIASES.keys if ARGV.include? "--include-aliases"
+      puts_columns cmds.sort
+    else
+      # Find commands in Homebrew/cmd
+      puts "Built-in commands"
+      puts_columns internal_commands
 
-    unless exts.empty?
-      puts
-      puts "External commands"
-      puts_columns exts
+      # Find commands in the path
+      unless (exts = external_commands).empty?
+        puts
+        puts "External commands"
+        puts_columns exts
+      end
     end
   end
+
+  def internal_commands
+    with_directory = false
+    (HOMEBREW_REPOSITORY/"Library/Homebrew/cmd").
+       children(with_directory).
+       map {|f| File.basename(f, '.rb')}
+  end
+
+  def external_commands
+    paths.map{ |p| Dir["#{p}/brew-*"] }.flatten.
+      map{ |f| File.basename(f, '.rb')[5..-1] }.
+      reject{ |f| f =~ /\./ }
+  end
 end
diff --git a/Library/Homebrew/manpages/brew.1.md b/Library/Homebrew/manpages/brew.1.md
index ede0d0224..e371c470e 100644
--- a/Library/Homebrew/manpages/brew.1.md
+++ b/Library/Homebrew/manpages/brew.1.md
@@ -75,9 +75,12 @@ Note that these flags should only appear after a command.
   * `command` <cmd>:
     Display the path to the file which is used when invoking `brew <cmd>`.
 
-  * `commands`:
+  * `commands [--quiet [--include-aliases]]`:
     Show a list of built-in and external commands.
 
+    If `--quiet` is passed, list only the names of commands without the header.
+    With `--include-aliases`, the aliases of internal commands will be included.
+
   * `config`:
     Show Homebrew and system configuration useful for debugging. If you file
     a bug report, you will likely be asked for this information if you do not