gstreamer/data/bash-completion/completions/gst-launch-1.0
Nicolas Dufresne bae1fe254a completion: Place the completion helper in libexec
This patch reorganize the bash completion scripts in order to install
the binary helper (gst-completion-helper) in libexec path rather then
share folder. Most Linux hierarchy compliance requires that no binary
executable are placed in share. We also cleanup the unused .pc entries
and remove copy pasted parts of the script. Note that other project
including the common helper, should now use $_GST_HELPER to read
the binary executable gst-completion-helper. This helper is not longer
version, as it is placed in a versionned subfolder
(libexec/gstreamer.10) just like the other helpers (scanner and ptp).
2017-04-04 14:46:48 -04:00

141 lines
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Text

# 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="$(pkg-config --variable=bashhelpersdir gstreamer-1.0)"
else
_GST_HELPERDIR=`cd "$_GST_HELPERDIR"; pwd`
fi
# Common definitions
. "$_GST_HELPERDIR"/gst
_gst_launch_all_arguments ()
{
_gst_all_arguments gst-launch-1.0
}
_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-1.0; }
_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