vppctl: new bash completion for vppctl commands

Bash completion for vppctl
*vppctl_completion uses generated list vppctl-cmd-list to provide bash completion
*List of commands generated using grep, then moved by vpp packaging
*Once vpp package installed restart bash to use

Change-Id: I3b25e55a432c395af421231cf7c37c2e243fee61
Signed-off-by: Padraig Connolly <padraig.connolly@intel.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/src/scripts/vppctl_completion b/src/scripts/vppctl_completion
new file mode 100644
index 00000000000..2a64e9abd08
--- /dev/null
+++ b/src/scripts/vppctl_completion
@@ -0,0 +1,30 @@
+#Copyright 2017 Intel Corporation
+#
+#Licensed under the Apache License, Version 2.0 (the "License");
+#you may not use this file except in compliance with the License.
+#You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+#Unless required by applicable law or agreed to in writing, software
+#distributed under the License is distributed on an "AS IS" BASIS,
+#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#See the License for the specific language governing permissions and
+#limitations under the License.
+
+_vppctl()
+{
+    local cur prev num opts
+    COMPREPLY=( $(compgen -f ${cur}) )
+    cur="${COMP_WORDS[COMP_CWORD]}"
+    prev="${COMP_WORDS[@]:1}"
+    num="$((${#COMP_WORDS[@]}-1))"
+
+    VPP_CMD_LIST="$(cat /usr/share/vpp/vppctl-cmd-list)"
+
+    opts="$(awk -v prev="^$prev" -v num=$num '{if($0 ~ prev) print $num}' <<< "${VPP_CMD_LIST}")"
+
+    COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
+
+}
+complete -F _vppctl vppctl