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Allow a bunch of Pi nodes to be visible but not active when used not on a Pi

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This commit is contained in:
Dave Conway-Jones
2018-04-15 11:24:56 +01:00
parent ace67b0154
commit acc2dc1a14
15 changed files with 428 additions and 355 deletions
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97
hardware/LEDborg/78-ledborg.js
View File

@@ -8,23 +8,26 @@ module.exports = function(RED) {
var LedBorgInUse = false;
var gpioCommand = __dirname+'/nrgpio';
var allOK = true;
try {
var cpuinfo = fs.readFileSync("/proc/cpuinfo").toString();
if (cpuinfo.indexOf(": BCM") === -1) { throw "Info : "+RED._("rpi-gpio.errors.ignorenode"); }
if (cpuinfo.indexOf(": BCM") === -1) {
RED.log.warn("ledborg : "+RED._("node-red:rpi-gpio.errors.ignorenode"));
allOK = false;
}
else if (!fs.existsSync("/usr/share/doc/python-rpi.gpio")) {
RED.log.warn("ledborg : "+RED._("node-red:rpi-gpio.errors.libnotfound"));
allOK = false;
}
else if ( !(1 & parseInt ((fs.statSync(gpioCommand).mode & parseInt ("777", 8)).toString (8)[0]) )) {
RED.log.warn("ledborg : "+RED._("node-red:rpi-gpio.errors.needtobeexecutable",{command:gpioCommand}));
allOK = false;
}
}
catch(err) {
throw "Info : "+RED._("rpi-gpio.errors.ignorenode");
}
if (!fs.existsSync("/usr/share/doc/python-rpi.gpio")) {
util.log("[rpi-ledborg] Info : Can't find RPi.GPIO python library.");
throw "Warning : Can't find RPi.GPIO python library.";
}
if ( !(1 & parseInt ((fs.statSync(gpioCommand).mode & parseInt ("777", 8)).toString (8)[0]) )) {
util.log("[rpi-ledborg] Error : "+gpioCommand+" needs to be executable.");
throw "Error : nrgpio must to be executable.";
RED.log.warn("ledborg : "+RED._("node-red:rpi-gpio.errors.ignorenode"));
allOK = false;
}
// GPIO pins 11 (R), 13 (G), 15 (B).
@@ -95,46 +98,50 @@ module.exports = function(RED) {
}
}
node.child = spawn(gpioCommand, ["borg","11"]);
node.running = true;
node.status({fill:"green",shape:"dot",text:"OK"});
if (allOK === true) {
node.child = spawn(gpioCommand, ["borg","11"]);
node.running = true;
node.status({fill:"green",shape:"dot",text:"OK"});
node.on("input", inputlistener);
node.on("input", inputlistener);
node.child.stdout.on('data', function (data) {
if (RED.settings.verbose) { node.log("out: "+data+" :"); }
});
node.child.stdout.on('data', function (data) {
if (RED.settings.verbose) { node.log("out: "+data+" :"); }
});
node.child.stderr.on('data', function (data) {
if (RED.settings.verbose) { node.log("err: "+data+" :"); }
});
node.child.stderr.on('data', function (data) {
if (RED.settings.verbose) { node.log("err: "+data+" :"); }
});
node.child.on('close', function () {
node.child = null;
node.running = false;
node.status({fill:"red",shape:"circle",text:""});
if (RED.settings.verbose) { node.log("closed"); }
if (node.done) { node.done(); }
});
node.child.on('close', function () {
node.child = null;
node.running = false;
node.status({fill:"red",shape:"circle",text:""});
if (RED.settings.verbose) { node.log("closed"); }
if (node.done) { node.done(); }
});
node.child.on('error', function (err) {
if (err.errno === "ENOENT") { node.warn('Command not found'); }
else if (err.errno === "EACCES") { node.warn('Command not executable'); }
else { node.log('error: ' + err); }
});
node.child.on('error', function (err) {
if (err.errno === "ENOENT") { node.warn('Command not found'); }
else if (err.errno === "EACCES") { node.warn('Command not executable'); }
else { node.log('error: ' + err); }
});
node.on("close", function(done) {
node.on("close", function(done) {
LedBorgInUse = false;
node.status({fill:"red",shape:"circle",text:""});
if (node.child != null) {
node.done = done;
node.child.stdin.write(" close 11");
node.child.kill('SIGKILL');
}
else { done(); }
});
}
else {
LedBorgInUse = false;
node.status({fill:"red",shape:"circle",text:""});
if (node.child != null) {
node.done = done;
node.child.stdin.write(" close 11");
node.child.kill('SIGKILL');
}
else { done(); }
});
node.status({fill:"grey",shape:"dot",text:"node-red:rpi-gpio.status.not-available"});
}
}
RED.nodes.registerType("ledborg",LedBorgNode);
}

2
hardware/LEDborg/package.json
View File

@@ -1,6 +1,6 @@
{
"name" : "node-red-node-ledborg",
"version" : "0.0.18",
"version" : "0.0.19",
"description" : "A Node-RED node to control a PiBorg LedBorg board for a Raspberry Pi.",
"dependencies" : {
},