From 66c0b06d72bb55e1ac288a69336ae858095e5c32 Mon Sep 17 00:00:00 2001
From: Xu Cheng
Date: Sat, 2 Jan 2016 23:08:51 +0800
Subject: utils: add which_all

Similar to which, except it returns all of paths where binary is found.
i.e. it's equivalent to `which -a`.
---
 Library/Homebrew/requirement.rb |  4 ++++
 Library/Homebrew/utils.rb       | 13 +++++++++++++
 2 files changed, 17 insertions(+)

(limited to 'Library')

diff --git a/Library/Homebrew/requirement.rb b/Library/Homebrew/requirement.rb
index 91eedd72d..0aa4ed78d 100644
--- a/Library/Homebrew/requirement.rb
+++ b/Library/Homebrew/requirement.rb
@@ -134,6 +134,10 @@ class Requirement
     super(cmd, ORIGINAL_PATHS.join(File::PATH_SEPARATOR))
   end
 
+  def which_all(cmd)
+    super(cmd, ORIGINAL_PATHS.join(File::PATH_SEPARATOR))
+  end
+
   class << self
     include BuildEnvironmentDSL
 
diff --git a/Library/Homebrew/utils.rb b/Library/Homebrew/utils.rb
index 50e226faa..a709827a5 100644
--- a/Library/Homebrew/utils.rb
+++ b/Library/Homebrew/utils.rb
@@ -361,6 +361,19 @@ def which(cmd, path = ENV["PATH"])
   nil
 end
 
+def which_all(cmd, path = ENV["PATH"])
+  path.split(File::PATH_SEPARATOR).map do |p|
+    begin
+      pcmd = File.expand_path(cmd, p)
+    rescue ArgumentError
+      # File.expand_path will raise an ArgumentError if the path is malformed.
+      # See https://github.com/Homebrew/homebrew/issues/32789
+      next
+    end
+    Pathname.new(pcmd) if File.file?(pcmd) && File.executable?(pcmd)
+  end.compact.uniq
+end
+
 def which_editor
   editor = ENV.values_at("HOMEBREW_EDITOR", "VISUAL", "EDITOR").compact.first
   return editor unless editor.nil?
-- 
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