Add get_completions func

autoload/SpaceVim/bin/get_complete

@@ -0,0 +1,53 @@
+#!/usr/bin/env bash
+
+# Author: Brian Beffa <brbsix@gmail.com>
+# Original source: https://brbsix.github.io/2015/11/29/accessing-tab-completion-programmatically-in-bash/
+# License: LGPLv3 (http://www.gnu.org/licenses/lgpl-3.0.txt)
+#
+
+get_completions(){
+    local completion COMP_CWORD COMP_LINE COMP_POINT COMP_WORDS COMPREPLY=()
+
+    # load bash-completion if necessary
+    declare -F _completion_loader &>/dev/null || {
+        source /usr/share/bash-completion/bash_completion
+    }
+
+    COMP_LINE=$*
+    COMP_POINT=${#COMP_LINE}
+
+    eval set -- "$@"
+
+    COMP_WORDS=("$@")
+
+    # add '' to COMP_WORDS if the last character of the command line is a space
+    [[ ${COMP_LINE[@]: -1} = ' ' ]] && COMP_WORDS+=('')
+
+    # index of the last word
+    COMP_CWORD=$(( ${#COMP_WORDS[@]} - 1 ))
+
+    # determine completion function
+    completion=$(complete -p "$1" 2>/dev/null | awk '{print $(NF-1)}')
+
+    # run _completion_loader only if necessary
+    [[ -n $completion ]] || {
+
+        # load completion
+        _completion_loader "$1"
+
+        # detect completion
+        completion=$(complete -p "$1" 2>/dev/null | awk '{print $(NF-1)}')
+
+    }
+
+    # ensure completion was detected
+    [[ -n $completion ]] || return 1
+
+    # execute completion function
+    "$completion"
+
+    # print completions to stdout
+    printf '%s\n' "${COMPREPLY[@]}" | LC_ALL=C sort
+}
+
+get_completions $@