Add a Bash completion script for the Godot editor

misc/dist/shell/godot.bash-completion

@@ -0,0 +1,124 @@
+#!/usr/bin/env bash
+
+# Bash completion for the Godot editor
+# To use it, install this file in `/etc/bash_completion.d` then restart your shell.
+# You can also `source` this file directly in your shell startup file.
+#
+# Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.
+# Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+_complete_godot_options() {
+  # Since Bash doesn't support option descriptions in autocompletion,
+  # only display long options to be more descriptive.
+  # shellcheck disable=SC2207
+  COMPREPLY=($(compgen -W " \
+--help
+--version
+--verbose
+--quiet
+--editor
+--project-manager
+--quit
+--language
+--path
+--upwards
+--main-pack
+--render-thread
+--remote-fs
+--remote-fs-password
+--audio-driver
+--video-driver
+--fullscreen
+--maximized
+--windowed
+--always-on-top
+--resolution
+--position
+--low-dpi
+--no-window
+--enable-vsync-via-compositor
+--disable-vsync-via-compositor
+--debug
+--breakpoints
+--profiling
+--remote-debug
+--debug-collisions
+--debug-navigation
+--frame-delay
+--time-scale
+--disable-render-loop
+--disable-crash-handler
+--fixed-fps
+--print-fps
+--script
+--check-only
+--export
+--export-debug
+--export-pack
+--doctool
+--no-docbase
+--build-solutions
+--gdnative-generate-json-api
+--test
+" -- "$1"))
+}
+
+_complete_godot_bash() {
+  local cur="${COMP_WORDS[$COMP_CWORD]}" prev
+
+  # Complete options or the positional argument.
+  if [[ $cur == -* ]]; then
+    _complete_godot_options "$cur"
+  else
+    local IFS=$'\n\t'
+    # shellcheck disable=SC2207
+    COMPREPLY=($(compgen -f -X "!*.@(scn|tscn|escn|godot)" -- "$cur"))
+  fi
+
+  # If the array is accessed out of bounds (which will happen for the first argument),
+  # `$prev` will be an empty string and won't match any of the conditions below.
+  prev="${COMP_WORDS[$((COMP_CWORD-1))]}"
+
+  # Complete option values.
+  if [[ $prev == "--render-thread" ]]; then
+    local IFS=$' \n\t'
+    # shellcheck disable=SC2207
+    COMPREPLY=($(compgen -W "unsafe safe separate" -- "$cur"))
+  elif [[ $prev == "--video-driver" ]]; then
+    local IFS=$' \n\t'
+    # shellcheck disable=SC2207
+    COMPREPLY=($(compgen -W "GLES3 GLES2" -- "$cur"))
+  elif [[ $prev == "--path" || $prev == "--doctool" ]]; then
+    local IFS=$'\n\t'
+    # shellcheck disable=SC2207
+    COMPREPLY=($(compgen -d -- "$cur"))
+  elif [[ $prev == "--main-pack" ]]; then
+    local IFS=$'\n\t'
+    # shellcheck disable=SC2207
+    COMPREPLY=($(compgen -f -X "!*.@(pck|zip)" -- "$cur"))
+  elif [[ $prev == "-s" || $prev == "--script" ]]; then
+    local IFS=$'\n\t'
+    # shellcheck disable=SC2207
+    COMPREPLY=($(compgen -f -X "!*.gd" -- "$cur"))
+  fi
+}
+
+complete -o filenames -F _complete_godot_bash godot