pkgs: add osc777
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This commit is contained in:
Bruno BELANYI 2023-08-11 13:13:21 +00:00
parent 5f42e7cc90
commit bcdbe45558
3 changed files with 169 additions and 0 deletions

View file

@ -26,6 +26,8 @@ pkgs.lib.makeScope pkgs.newScope (pkgs: {
osc52 = pkgs.callPackage ./osc52 { };
osc777 = pkgs.callPackage ./osc777 { };
rbw-pass = pkgs.callPackage ./rbw-pass { };
unbound-zones-adblock = pkgs.callPackage ./unbound-zones-adblock { };

41
pkgs/osc777/default.nix Normal file
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@ -0,0 +1,41 @@
{ lib, coreutils, makeWrapper, stdenvNoCC }:
stdenvNoCC.mkDerivation rec {
pname = "osc777";
version = "0.1.0";
src = ./osc777;
nativeBuildInputs = [
makeWrapper
];
dontUnpack = true;
dontBuild = true;
installPhase = ''
mkdir -p $out/bin
cp $src $out/bin/osc777
chmod a+x $out/bin/osc777
'';
wrapperPath = lib.makeBinPath [
coreutils
];
fixupPhase = ''
patchShebangs $out/bin/osc777
wrapProgram $out/bin/osc777 --prefix PATH : "${wrapperPath}"
'';
meta = with lib; {
description = ''
A script to send notifications using the OSC777 escape sequence
'';
homepage = "https://git.belanyi.fr/ambroisie/nix-config";
license = with licenses; [ mit ];
mainProgram = "osc777";
maintainers = with maintainers; [ ambroisie ];
platforms = platforms.linux;
};
}

126
pkgs/osc777/osc777 Executable file
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@ -0,0 +1,126 @@
#!/usr/bin/env bash
# Whether to disable tmux/screen DCS escape sequences
: "${OSC777_NO_DCS:=0}"
die() {
echo "ERROR: $*"
exit 1
}
usage() {
if [ $# -gt 0 ]; then
exec 1>&2
fi
cat << EOF
Usage: $0 [options] <title> <message>
Send a notification (title and message) to the host system using the OSC 777
escape sequence:
Options:
-h, --help This screen.
-d, --no-dcs Disable tmux/screen specific DCS sequences, only use OSC 777
-- Stop options processing
EOF
if [ $# -gt 0 ]; then
echo
die "$@"
else
exit 0
fi
}
tmux_seq() {
# shellcheck disable=1003
printf '\033Ptmux;\033%s\033\\' "$1"
}
screen_seq() {
# Screen limits the length of string sequences, so we have to break it up.
# Going by the screen history:
# (v4.2.1) Apr 2014 - today: 768 bytes
# Aug 2008 - Apr 2014 (v4.2.0): 512 bytes
# ??? - Aug 2008 (v4.0.3): 256 bytes
local limit=768
# We go 4 bytes under the limit because we're going to insert two bytes
# before (\eP) and 2 bytes after (\e\) each string.
printf '%s' "$1" |
sed -E "s:.{$((limit - 4))}:&\n:g" |
sed -E -e 's:^:\x1bP:' -e 's:$:\x1b\\:' |
tr -d '\n'
}
osc777_seq() {
printf '%s' "$1"
}
print_seq() {
local seq="$1"
if [ "${OSC777_NO_DCS}" != 0 ]; then
# Override TERM to avoid tmux/screen DCS escape logic
TERM=dummy
fi
case ${TERM-} in
screen*)
# Since tmux defaults to setting TERM=screen, special case it.
if [ -n "${TMUX-}" ]; then
tmux_seq "${seq}"
else
screen_seq "${seq}"
fi
;;
tmux*)
tmux_seq "${seq}"
;;
*)
osc777_seq "${seq}"
;;
esac
}
notify() {
local title=$1
local message=$2
# shellcheck disable=1003
print_seq "$(printf '\033]777;notify;%s;%s\e\\' "${title}" "${message}")"
}
main() {
set -e
local args=()
while [ $# -gt 0 ]; do
case $1 in
-h | --help)
usage
;;
-d | --no-dcs)
OSC777_NO_DCS=1
;;
--)
shift
args+=("$@")
break
;;
-*)
usage "Unknown option: $1"
;;
*)
args+=("$1")
;;
esac
shift
done
if [ "${#args[@]}" -ne 2 ]; then
usage "Supply exactly two arguments"
fi
notify "${args[@]}"
}
main "$@"