#738: Set SHELL env var for fish and tcsh

thefuck/shells/fish.py

@@ -35,7 +35,7 @@ class Fish(Generic):
         # It is VERY important to have the variables declared WITHIN the alias
         return ('function {0} -d "Correct your previous console command"\n'
                 '  set -l fucked_up_command $history[1]\n'
-                '  env TF_ALIAS={0} PYTHONIOENCODING=utf-8'
+                '  env TF_SHELL=fish TF_ALIAS={0} PYTHONIOENCODING=utf-8'
                 ' thefuck $fucked_up_command | read -l unfucked_command\n'
                 '  if [ "$unfucked_command" != "" ]\n'
                 '    eval $unfucked_command\n{1}'

thefuck/shells/tcsh.py

@@ -7,7 +7,7 @@ from .generic import Generic
 
 class Tcsh(Generic):
     def app_alias(self, alias_name):
-        return ("alias {0} 'setenv TF_ALIAS {0} && "
+        return ("alias {0} 'setenv TF_SHELL tcsh && setenv TF_ALIAS {0} && "
                 "set fucked_cmd=`history -h 2 | head -n 1` && "
                 "eval `thefuck ${{fucked_cmd}}`'").format(alias_name)