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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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118
hardware/neopixel/neopixel.js
View File

@@ -6,23 +6,26 @@ module.exports = function(RED) {
var fs = require('fs');
var colors = require('./colours.js');
var piCommand = __dirname+'/neopix';
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("rpi-neopixels : "+RED._("node-red:rpi-gpio.errors.ignorenode"));
allOK = false;
}
else if (execSync('python -c "import neopixel"').toString() !== "") {
RED.log.warn("rpi-neopixels : Can't find neopixel python library");
allOK = false;
}
else if (!(1 & parseInt ((fs.statSync(piCommand).mode & parseInt ("777", 8)).toString (8)[0]))) {
RED.log.warn("rpi-neopixels : "+RED._("node-red:rpi-gpio.errors.needtobeexecutable",{command:piCommand}));
allOK = false;
}
}
catch(err) {
throw "Info : "+RED._("rpi-gpio.errors.ignorenode");
}
if (execSync('python -c "import neopixel"').toString() !== "") {
RED.log.warn("Can't find neopixel python library");
throw "Warning : Can't find neopixel python library";
}
if ( !(1 & parseInt ((fs.statSync(piCommand).mode & parseInt ("777", 8)).toString (8)[0]) )) {
RED.log.error(piCommand + " command is not executable");
throw "Error : "+RED._("rpi-gpio.errors.mustbeexecutable");
RED.log.warn("rpi-neopixels : "+RED._("node-red:rpi-gpio.errors.ignorenode"));
allOK = false;
}
// the magic to make python print stuff immediately
@@ -110,57 +113,70 @@ module.exports = function(RED) {
}
}
<<<<<<< Updated upstream
node.child = spawn(piCommand, [node.pixels, node.wipe, node.mode, node.brightness, node.gamma]);
node.status({fill:"green",shape:"dot",text:"ok"});
||||||| merged common ancestors
node.child = spawn(piCommand, [node.pixels, node.wipe, node.mode]);
node.status({fill:"green",shape:"dot",text:"ok"});
=======
if (allOK === true) {
node.child = spawn(piCommand, [node.pixels, node.wipe, node.mode]);
node.status({fill:"green",shape:"dot",text:"ok"});
>>>>>>> Stashed changes
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;
if (RED.settings.verbose) { node.log(RED._("rpi-gpio.status.closed")); }
if (node.done) {
node.child.on('close', function () {
node.child = null;
if (RED.settings.verbose) { node.log(RED._("rpi-gpio.status.closed")); }
if (node.done) {
node.status({fill:"grey",shape:"ring",text:"closed"});
node.done();
}
else { node.status({fill:"red",shape:"ring",text:"stopped"}); }
});
node.child.on('error', function (err) {
if (err.errno === "ENOENT") { node.error(RED._("rpi-gpio.errors.commandnotfound")); }
else if (err.errno === "EACCES") { node.error(RED._("rpi-gpio.errors.commandnotexecutable")); }
else { node.error(RED._("rpi-gpio.errors.error")+': ' + err.errno); }
});
node.on("close", function(done) {
node.status({fill:"grey",shape:"ring",text:"closed"});
node.done();
}
else { node.status({fill:"red",shape:"ring",text:"stopped"}); }
});
if (node.child != null) {
node.done = done;
node.child.kill('SIGKILL');
}
else { done(); }
});
node.child.on('error', function (err) {
if (err.errno === "ENOENT") { node.error(RED._("rpi-gpio.errors.commandnotfound")); }
else if (err.errno === "EACCES") { node.error(RED._("rpi-gpio.errors.commandnotexecutable")); }
else { node.error(RED._("rpi-gpio.errors.error")+': ' + err.errno); }
});
node.on("close", function(done) {
node.status({fill:"grey",shape:"ring",text:"closed"});
if (node.child != null) {
node.done = done;
node.child.kill('SIGKILL');
if (node.bgnd) {
if (node.bgnd.split(',').length === 1) {
node.bgnd = colors.getRGB(node.bgnd,node.rgb);
}
if (node.mode.indexOf("shift") === -1) {
node.child.stdin.write(node.bgnd+"\n");
}
}
else { done(); }
});
if (node.bgnd) {
if (node.bgnd.split(',').length === 1) {
node.bgnd = colors.getRGB(node.bgnd,node.rgb);
}
if (node.mode.indexOf("shift") === -1) {
node.child.stdin.write(node.bgnd+"\n");
if (node.fgnd) {
if (node.fgnd.split(',').length === 1) {
node.fgnd = colors.getRGB(node.fgnd,node.rgb);
}
}
}
if (node.fgnd) {
if (node.fgnd.split(',').length === 1) {
node.fgnd = colors.getRGB(node.fgnd,node.rgb);
}
else {
node.status({fill:"grey",shape:"dot",text:"node-red:rpi-gpio.status.not-available"});
}
}
RED.nodes.registerType("rpi-neopixels",PiNeopixelNode);

15
hardware/neopixel/package.json
View File

@@ -1,11 +1,12 @@
{
"name": "node-red-node-pi-neopixel",
"version": "0.0.17",
"description": "A Node-RED node to output to a neopixel (ws2812) string of LEDS from a Raspberry Pi.",
"dependencies": {},
"repository": {
"type": "git",
"url": "https://github.com/node-red/node-red-nodes/tree/master/hardware/neopixel"
"name" : "node-red-node-pi-neopixel",
"version" : "0.0.17",
"description" : "A Node-RED node to output to a neopixel (ws2812) string of LEDS from a Raspberry Pi.",
"dependencies" : {
},
"repository" : {
"type":"git",
"url":"https://github.com/node-red/node-red-nodes/tree/master/hardware/neopixel"
},
"license": "Apache-2.0",
"keywords": [