From 8cc027a3cd24b95120932c581c8b9eebb8c710f3 Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Wed, 24 Aug 2016 11:06:20 +0100
Subject: [PATCH] utils: add link_path_manpages method.

---
 Library/Homebrew/utils.rb | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/Library/Homebrew/utils.rb b/Library/Homebrew/utils.rb
index 0a1b5158d5..7b7289ca26 100644
--- a/Library/Homebrew/utils.rb
+++ b/Library/Homebrew/utils.rb
@@ -594,3 +594,26 @@ def truncate_text_to_approximate_size(s, max_bytes, options = {})
   out.encode!("UTF-8")
   out
 end
+
+def link_path_manpages(path, command)
+  return unless (path/"man").exist?
+  conflicts = []
+  (path/"man").find do |src|
+    next if src.directory?
+    dst = HOMEBREW_PREFIX/"share"/src.relative_path_from(path)
+    next if dst.symlink? && src == dst.resolved_path
+    if dst.exist?
+      conflicts << dst
+      next
+    end
+    dst.make_relative_symlink(src)
+  end
+  unless conflicts.empty?
+    onoe <<-EOS.undent
+      Could not link #{name} manpages to:
+        #{conflicts.join("\n")}
+
+      Please delete these files and run `#{command}`.
+    EOS
+  end
+end