[UI] Support for running CocoaPods without a terminal.

Closes #577.
Closes #575.

CHANGELOG.md

@@ -4,11 +4,18 @@
 
 ###### Enhancements
 
-- The git cache now always uses a barebone repo.
-  [#581](https://github.com/CocoaPods/CocoaPods/pull/581)
 - Added support for `.hh` headers.
   [#576](https://github.com/CocoaPods/CocoaPods/pull/576)
 
+###### Bug fixes
+
+- Restored support for not running CocoaPods in a terminal.
+  [#575](https://github.com/CocoaPods/CocoaPods/pull/575)
+  [#577](https://github.com/CocoaPods/CocoaPods/pull/577)
+- The git cache now always uses a barebone repo preventing a number of related issues.
+  [#581](https://github.com/CocoaPods/CocoaPods/pull/581)
+  [#569](https://github.com/CocoaPods/CocoaPods/pull/569)
+
 ## 0.15.1
 
 [CocoaPods](https://github.com/CocoaPods/CocoaPods/compare/0.15.0...0.15.1)

lib/cocoapods/user_interface.rb

@@ -196,8 +196,9 @@ module Pod
 
       # @!group Helpers
 
-      # Wraps a string taking into account the width of the terminal and an
-      # option indent. Adapted from http://blog.macromates.com/2006/wrapping-text-with-regular-expressions/
+      # @return [String] Wraps a string taking into account the width of the
+      # terminal and an option indent. Adapted from
+      # http://blog.macromates.com/2006/wrapping-text-with-regular-expressions/
       #
       # @param [String] txt     The string to wrap
       #
@@ -205,8 +206,12 @@ module Pod
       #
       # @return [String]        The formatted string.
       #
+      # @note If CocoaPods is not being run in a terminal or the width of the
+      # terminal is too small a width of 80 is assumed.
+      #
       def wrap_string(txt, indent = '')
         width = `stty size`.split(' ')[1].to_i - indent.length
+        width = 80 unless width >= 10
         txt.strip.gsub(/(.{1,#{width}})( +|$)\n?|(.{#{width}})/, indent + "\\1\\3\n")
       end
     end