| # GStreamer |
| # Copyright (C) 2015 Mathieu Duponchelle <mathieu.duponchelle@opencreed.com> |
| # |
| # bash/zsh completion support for gst-launch |
| # |
| # This library is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU Library General Public |
| # License as published by the Free Software Foundation; either |
| # version 2 of the License, or (at your option) any later version. |
| # |
| # This library is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| # Library General Public License for more details. |
| # |
| # You should have received a copy of the GNU Library General Public |
| # License along with this library; if not, write to the |
| # Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
| # Boston, MA 02110-1301, USA. |
| |
| _GST_HELPERDIR="${BASH_SOURCE[0]%/*}/../helpers" |
| |
| if [[ ! -d "$_GST_HELPERDIR" ]]; then |
| _GST_HELPERDIR="$(pkg-config --variable=helpersdir gstreamer-1.0)" |
| else |
| _GST_HELPERDIR=`cd "$_GST_HELPERDIR"; pwd` |
| fi |
| |
| # Common definitions |
| . "$_GST_HELPERDIR"/gst |
| |
| _GST_HELPER="$_GST_HELPERDIR/gst-completion-helper-1.0" |
| |
| _gst_launch_all_arguments () |
| { |
| COMPREPLY=( $(compgen -W "$(gst-launch-1.0 --help-all | grep -oh '[[:graph:]]*--[[:graph:]]*' | cut -d'=' -f1)" -- $cur) ) |
| } |
| |
| _gst_complete_compatible_elements () |
| { |
| COMPREPLY=( $(compgen -W "$($_GST_HELPER --compatible-with $previous_element)" -- $cur) ) |
| } |
| |
| _gst_complete_all_elements () |
| { |
| COMPREPLY=( $(compgen -W "$($_GST_HELPER -l)" -- $cur) ) |
| } |
| |
| _gst_complete_element_properties () |
| { |
| COMPREPLY=( $(compgen -W "$($_GST_HELPER --element-properties $previous_element)" -- $cur) ) |
| } |
| |
| _gstlaunch___exclude_ () { _gst_mandatory_argument; } |
| |
| _gst_launch_main () |
| { |
| local i=1 command function_exists previous_element have_previous_element=0 completion_func |
| |
| while [[ $i -ne $COMP_CWORD ]]; |
| do |
| local var |
| var="${COMP_WORDS[i]}" |
| if [[ "$var" == "--"* ]] |
| then |
| command="$var" |
| fi |
| i=$(($i+1)) |
| done |
| |
| i=1 |
| while [[ $i -ne $COMP_CWORD ]]; |
| do |
| local var |
| var="${COMP_WORDS[i]}" |
| |
| if [[ "$var" == "--"* ]] |
| then |
| i=$(($i+1)) |
| continue |
| fi |
| |
| $(gst-inspect-1.0 --exists $var) |
| if [ $? -eq 0 ] |
| then |
| previous_element="$var" |
| have_previous_element=1 |
| fi |
| i=$(($i+1)) |
| done |
| |
| if [[ "$command" == "--gst"* ]]; then |
| completion_func="_${command//-/_}" |
| else |
| completion_func="_gstlaunch_${command//-/_}" |
| fi |
| |
| # Seems like bash doesn't like "exclude" in function names |
| if [[ "$completion_func" == "_gstlaunch___exclude" ]] |
| then |
| completion_func="_gstlaunch___exclude_" |
| fi |
| |
| declare -f $completion_func >/dev/null 2>&1 |
| |
| function_exists=$? |
| |
| if [[ "$cur" == "--"* ]]; then |
| _gst_launch_all_arguments |
| elif [ $function_exists -eq 0 ] |
| then |
| $completion_func |
| elif [ $have_previous_element -ne 0 ] && [[ "$prev" == "!" ]] |
| then |
| _gst_complete_compatible_elements |
| elif [ $have_previous_element -ne 0 ] |
| then |
| _gst_complete_element_properties |
| else |
| _gst_complete_all_elements |
| fi |
| } |
| |
| _gst_launch_func_wrap () |
| { |
| local cur prev |
| cur="${COMP_WORDS[COMP_CWORD]}" |
| prev="${COMP_WORDS[COMP_CWORD-1]}" |
| $1 |
| } |
| |
| # Setup completion for certain functions defined above by setting common |
| # variables and workarounds. |
| # This is NOT a public function; use at your own risk. |
| _gst_launch_complete () |
| { |
| local wrapper="__launch_wrap${2}" |
| eval "$wrapper () { _gst_launch_func_wrap $2 ; }" |
| complete -o bashdefault -o default -o nospace -F $wrapper $1 2>/dev/null \ |
| || complete -o default -o nospace -F $wrapper $1 |
| } |
| |
| _gst_launch_complete gst-launch-1.0 _gst_launch_main |