Mechanism to dynamically add HOMEBREW.* vars to 'env -i' command string in 'bin/brew'

1 files changed, 11 insertions, 0 deletions

diff --git a/Library/Homebrew/utils/homebrew_vars.rb b/Library/Homebrew/utils/homebrew_vars.rb
new file mode 100755
index 000000000..057633b77
--- /dev/null
+++ b/Library/Homebrew/utils/homebrew_vars.rb
@@ -0,0 +1,11 @@
+#!/usr/bin/env ruby
+
+ENV.keys.each do |key| 
+  if key =~ /^HOMEBREW.*/
+    # Remove any HOMEBREW.* vars containing white-space which causes a problem for "env -i" command via string.
+    #
+    # (Any user supplied HOMEBREW.* vars with valid white-space need to be hard-coded in 'bin/brew')
+    #
+    puts "#{key}=#{ENV[key]}" unless ENV[key].split(' ').length > 1
+  end
+end