Move setup to powerline-setup.fish

This file is supposed to be placed in /usr/share/fish/functions.

docs/source/overview.rst

@@ -158,7 +158,8 @@ is the absolute path to your Powerline installation directory:
 
 .. code-block:: bash
 
-   . {repository_root}/powerline/bindings/fish/powerline.fish
+   set fish_function_path $fish_function_path "{repository_root}/powerline/bindings/fish"
+   powerline-setup
 
 Tmux statusline
 ---------------

powerline/bindings/fish/powerline-setup.fish

@@ -1,4 +1,4 @@
-function powerline
+function powerline-setup
 	if test -z "$POWERLINE_COMMAND"
 		if which powerline-client >/dev/null
 			set -g -x POWERLINE_COMMAND powerline-client
@@ -33,4 +33,3 @@ function powerline
 	_powerline_tmux_set_columns
 	_powerline_tmux_set_pwd
 end
-powerline

tests/test_shells/input.fish

@@ -2,7 +2,8 @@ set POWERLINE_COMMAND "$PWD/scripts/powerline -p $PWD/powerline/config_files"
 set POWERLINE_COMMAND "$POWERLINE_COMMAND -t default_leftonly.segment_data.hostname.args.only_if_ssh=false"
 set POWERLINE_COMMAND "$POWERLINE_COMMAND -c ext.shell.theme=default_leftonly"
 set VIRTUAL_ENV
-. powerline/bindings/fish/powerline.fish ; cd tests/shell/3rd
+set fish_function_path $fish_function_path "$PWD/powerline/bindings/fish"
+powerline-setup ; cd tests/shell/3rd
 cd .git
 cd ..
 set VIRTUAL_ENV "$HOME/.virtenvs/some-virtual-environment"