Bash completion template

The most of content of this file comes from the output of the command '
register-python-argcomplete $MY-SCRIPT', plus some changes.
For the details about argcomplete, Please refer to
https://pypi.org/project/argcomplete/ or
https://github.com/kislyuk/argcomplete

With this patchset, Users can use completion in bash.
ex:

$ virt-xml --<TAB><TAB>
$ virt-install --disk <TAB><TAB>
$ virt-install --panic model=isa,<TAB><TAB>
$ virt-install --controller model=virtio-scsi,ty<TAB><TAB>

Signed-off-by: Lin Ma <lma@suse.com>

data/bash-completion/virtmanager

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+# Run something, muting output or redirecting it to the debug stream
+# depending on the value of _ARC_DEBUG.
+__python_argcomplete_run() {
+    if [[ -z "$_ARC_DEBUG" ]]; then
+        "$@" 8>&1 9>&2 1>/dev/null 2>&1
+    else
+        "$@" 8>&1 9>&2 1>&9 2>&1
+    fi
+}
+
+_python_argcomplete() {
+    if [[ "$COMP_WORDBREAKS" != *,* ]]; then
+        COMP_WORDBREAKS="${COMP_WORDBREAKS},"
+    fi
+    local IFS=$'\013'
+    local SUPPRESS_SPACE=0
+    if compopt +o nospace 2> /dev/null; then
+        SUPPRESS_SPACE=1
+    fi
+    COMP_WORDS[4]=""
+    COMPREPLY=( $(IFS="$IFS" \
+                  COMP_LINE="$COMP_LINE" \
+                  COMP_POINT="$COMP_POINT" \
+                  COMP_TYPE="$COMP_TYPE" \
+                  _ARGCOMPLETE_COMP_WORDBREAKS="\"'><;|&(:" \
+                  _ARGCOMPLETE=1 \
+                  _ARGCOMPLETE_SUPPRESS_SPACE=$SUPPRESS_SPACE \
+                  __python_argcomplete_run "$1") )
+    if [[ $? != 0 ]]; then
+        unset COMPREPLY
+    elif [[ $SUPPRESS_SPACE == 1 ]] && [[ "$COMPREPLY" =~ [=/:]$ ]]; then
+        compopt -o nospace
+    fi
+}
+complete -o nospace -o default -F _python_argcomplete virtmanager