Add fish support

samples/fish/config.fish

@@ -0,0 +1,98 @@
+#
+# Main file for fish command completions. This file contains various
+# common helper functions for the command completions. All actual
+# completions are located in the completions subdirectory.
+#
+
+#
+# Set default field separators
+#
+
+set -g IFS \n\ \t
+
+#
+# Set default search paths for completions and shellscript functions
+# unless they already exist
+#
+
+set -l configdir ~/.config
+
+if set -q XDG_CONFIG_HOME
+	set configdir $XDG_CONFIG_HOME
+end
+
+# __fish_datadir, __fish_sysconfdir, __fish_help_dir, __fish_bin_dir
+# are expected to have been set up by read_init from fish.cpp
+
+# Set up function and completion paths. Make sure that the fish
+# default functions/completions are included in the respective path.
+
+if not set -q fish_function_path
+	set fish_function_path $configdir/fish/functions    $__fish_sysconfdir/functions    $__fish_datadir/functions
+end
+
+if not contains $__fish_datadir/functions $fish_function_path
+	set fish_function_path[-1] $__fish_datadir/functions
+end
+
+if not set -q fish_complete_path
+	set fish_complete_path $configdir/fish/completions  $__fish_sysconfdir/completions  $__fish_datadir/completions
+end
+
+if not contains $__fish_datadir/completions $fish_complete_path
+	set fish_complete_path[-1] $__fish_datadir/completions
+end
+
+#
+# This is a Solaris-specific test to modify the PATH so that
+# Posix-conformant tools are used by default. It is separate from the
+# other PATH code because this directory needs to be prepended, not
+# appended, since it contains POSIX-compliant replacements for various
+# system utilities.
+#
+
+if test -d /usr/xpg4/bin
+	if not contains /usr/xpg4/bin $PATH
+		set PATH /usr/xpg4/bin $PATH
+	end
+end
+
+#
+# Add a few common directories to path, if they exists. Note that pure
+# console programs like makedep sometimes live in /usr/X11R6/bin, so we
+# want this even for text-only terminals.
+#
+
+set -l path_list /bin /usr/bin /usr/X11R6/bin /usr/local/bin $__fish_bin_dir
+
+# Root should also have the sbin directories in the path
+switch $USER
+	case root
+	set path_list $path_list /sbin /usr/sbin /usr/local/sbin
+end
+
+for i in $path_list
+	if not contains $i $PATH
+		if test -d $i
+			set PATH $PATH $i
+		end
+	end
+end
+
+#
+# Launch debugger on SIGTRAP
+#
+function fish_sigtrap_handler --on-signal TRAP --no-scope-shadowing --description "Signal handler for the TRAP signal. Lanches a debug prompt."
+	breakpoint
+end
+
+#
+# Whenever a prompt is displayed, make sure that interactive
+# mode-specific initializations have been performed.
+# This handler removes itself after it is first called.
+#
+function __fish_on_interactive --on-event fish_prompt
+	__fish_config_interactive
+	functions -e __fish_on_interactive
+end
+