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extras/keymap/findkeyboards: beautify shell code and get rid of grep

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- save some extra forks and grep with shell code instead of calling
  grep
- use $() instead of backticks (improves readability and addes
  nesting capabilities)

Signed-off-by: Harald Hoyer <harald@redhat.com>
Signed-off-by: Martin Pitt <martin.pitt@ubuntu.com>
This commit is contained in:
Harald Hoyer 2011-11-07 14:54:47 +01:00 committed by Martin Pitt
parent 5101923ff9
commit 7b9cebf082
1 changed files with 26 additions and 11 deletions
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37
extras/keymap/findkeyboards
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@ -14,6 +14,20 @@
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
# returns OK if $1 contains $2
strstr() {
[ "${1#*$2*}" != "$1" ]
}
# returns OK if $1 contains $2 at the beginning
str_starts() {
[ "${1#$2*}" != "$1" ]
}
str_line_starts() {
while read a; do str_starts "$a" "$1" && return 0;done
return 1;
}
# print a list of input devices which are keyboard-like
keyboard_devices() {
@ -23,12 +37,12 @@ keyboard_devices() {
env=`udevadm info --query=env --path=$dev`
# filter out non-event devices, such as the parent input devices which
# have no devnode
if ! echo "$env" | grep -q '^DEVNAME='; then
if ! echo "$env" | str_line_starts 'DEVNAME='; then
continue
fi
if echo "$walk" | grep -q 'DRIVERS=="atkbd"'; then
if strstr "$walk" 'DRIVERS=="atkbd"'; then
echo -n 'AT keyboard: '
elif echo "$env" | grep -q '^ID_USB_DRIVER=usbhid'; then
elif echo "$env" | str_line_starts 'ID_USB_DRIVER=usbhid'; then
echo -n 'USB keyboard: '
else
echo -n 'Unknown type: '
@ -37,17 +51,18 @@ keyboard_devices() {
done
# modules
module=`udevadm trigger --verbose --dry-run --subsystem-match=input --attr-match=name='*Extra Buttons'`
module=$(udevadm trigger --verbose --dry-run --subsystem-match=input --attr-match=name='*Extra Buttons')
module="$module
`udevadm trigger --verbose --dry-run --subsystem-match=input --attr-match=name='*extra buttons'`"
$(udevadm trigger --verbose --dry-run --subsystem-match=input --attr-match=name='*extra buttons')"
module="$module
`udevadm trigger --verbose --dry-run --subsystem-match=input --attr-match=name='Sony Vaio Keys'`"
$(udevadm trigger --verbose --dry-run --subsystem-match=input --attr-match=name='Sony Vaio Keys')"
for m in $module; do
evdev=`ls -d $m/event* 2>/dev/null`
if [ -e "$evdev/dev" ]; then
echo -n 'module: '
udevadm info --query=name --path=$evdev
fi
for evdev in $m/event*/dev; do
if [ -e "$evdev" ]; then
echo -n 'module: '
udevadm info --query=name --path=${evdev%%/dev}
fi
done
done
}