scm: use shell quote for scm command at adapter level (#7517, #4273).

"C:\Program Files\TortoiseHg\hg.exe" can be used in config/configuration.yml.

In Ruby 1.9 IO.popen, if cmd is an Array of String,
it will be used as the subprocess‘s argv bypassing a shell.

See http://www.ruby-doc.org/core/classes/IO.html

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@4821 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/redmine/scm/adapters/abstract_adapter.rb

@@ -25,6 +25,10 @@ module Redmine
       
       class AbstractAdapter #:nodoc:
         class << self
+          def client_command
+            ""
+          end
+
           # Returns the version of the scm client
           # Eg: [1, 5, 0] or [] if unknown
           def client_version
@@ -45,8 +49,20 @@ module Redmine
           def client_version_above?(v, options={})
             ((client_version <=> v) >= 0) || (client_version.empty? && options[:unknown])
           end
+
+          def client_available
+            true
+          end
+
+          def shell_quote(str)
+            if Redmine::Platform.mswin?
+              '"' + str.gsub(/"/, '\\"') + '"'
+            else
+              "'" + str.gsub(/'/, "'\"'\"'") + "'"
+            end
+          end
         end
-                
+
         def initialize(url, root_url=nil, login=nil, password=nil)
           @url = url
           @login = login if login && !login.empty?
@@ -138,7 +154,7 @@ module Redmine
           path ||= ''
           (path[-1,1] == "/") ? path : "#{path}/"
         end
-        
+
         def without_leading_slash(path)
           path ||= ''
           path.gsub(%r{^/+}, '')
@@ -148,13 +164,9 @@ module Redmine
           path ||= ''
           (path[-1,1] == "/") ? path[0..-2] : path
          end
-        
+
         def shell_quote(str)
-          if Redmine::Platform.mswin?
-            '"' + str.gsub(/"/, '\\"') + '"'
-          else
-            "'" + str.gsub(/'/, "'\"'\"'") + "'"
-          end
+          self.class.shell_quote(str)
         end
 
       private
@@ -168,11 +180,11 @@ module Redmine
           base = path.match(/^\//) ? root_url : url
           shell_quote("#{base}/#{path}".gsub(/[?<>\*]/, ''))
         end
-            
+
         def logger
           self.class.logger
         end
-        
+
         def shellout(cmd, &block)
           self.class.shellout(cmd, &block)
         end