child-process

问题 can anybody help with the following? I'm trying to alter the one of the custom thumbnail sizes produced by a theme in the child theme, i've added the following to functions.php in the child theme: add_theme_support( 'post-thumbnails' ); remove_image_size( 'sela-grid-thumbnail' ); add_image_size( 'sela-grid-thumbnail', 242, 242, true ); The original function from the paren theme is: add_theme_support( 'post-thumbnails' ); // Post thumbnails set_post_thumbnail_size( 820, 312, true ); // Hero

问题 I'm trying to run a shell command inside of a gulp task using child_process.spawn . I have to detect when the task is done running so I'm using stdout to check for a specific string that I emit at the end of the command, but for some reason it doesn't look like my string is being emitted: // gulp 3.9.1 var gulp = require('gulp'); var spawn = require('child_process').spawn; gulp.task('my-task', function(cb) { var command = ''; // construct my shell command here var end = 'end_of_command'; var

问题 I'm trying to run a shell command inside of a gulp task using child_process.spawn . I have to detect when the task is done running so I'm using stdout to check for a specific string that I emit at the end of the command, but for some reason it doesn't look like my string is being emitted: // gulp 3.9.1 var gulp = require('gulp'); var spawn = require('child_process').spawn; gulp.task('my-task', function(cb) { var command = ''; // construct my shell command here var end = 'end_of_command'; var

问题 This is the code to execute cp.exec("cc -Wall /tmp/test.c -o /tmp/test", function(e, stdout, stderr) { if (e) { var errorstr = "Compilation failed with the following error "+ e.message.toString() client.send(errorstr) console.log(e, stdout, stderr) ee.prototype.removeAllListeners() } else if (stderr.length > 0) { client.send("Compilion finished with warnings\n"+ stderr + '\n') client.send('compiled') ee.prototype.emit('compiled') } else { client.send("Compilation successful") ee.prototype

问题 I'm writing a CLI using node and I've arrived at the part where I take user input and append it to a string that is the command for the child_process.exec function. const CURL_CHILD = exec('npm view --json ' + process.argv[2] + ... I am trying to figure out what I need to do to process.argv[2] before I pass it to the exec function. I've surfed around for a while and haven't found any questions or answers that address this specific case. What is the best way to sanitize this user input for

问题 I'm running nodejs on a raspberry pi and I want to run a child process to spawn a webcam stream. Outside of node my command is: raspivid -n -mm matrix -w 320 -h 240 -fps 18 -g 100 -t 0 -b 5000000 -o - | ffmpeg -y -f h264 -i - -c:v copy -map 0:0 -f flv -rtmp_buffer 100 -rtmp_live live "rtmp://example.com/big/test" With child_process I have to break each argument up var args = ["-n", "-mm", "matrix", "-w", "320", "-h", "240", "-fps", "18", "-g", "100", "-t", "0", "-b", "5000000", "-o", "-", "|"

问题 I'm running nodejs on a raspberry pi and I want to run a child process to spawn a webcam stream. Outside of node my command is: raspivid -n -mm matrix -w 320 -h 240 -fps 18 -g 100 -t 0 -b 5000000 -o - | ffmpeg -y -f h264 -i - -c:v copy -map 0:0 -f flv -rtmp_buffer 100 -rtmp_live live "rtmp://example.com/big/test" With child_process I have to break each argument up var args = ["-n", "-mm", "matrix", "-w", "320", "-h", "240", "-fps", "18", "-g", "100", "-t", "0", "-b", "5000000", "-o", "-", "|"

问题 I have a Perl script that spawns some children. They all take quite a while to run, creating directories and files along the way. I often notice things I'd like to change before the children die of natural causes, so then I have to shut everything down (which involves a few grep and kill calls) and delete any files the children created. It's not really a big deal, but a bit of a pain in the neck. I'd like to create a setup where the children are all monitored so when I start up the parent

问题 I have a Perl script that spawns some children. They all take quite a while to run, creating directories and files along the way. I often notice things I'd like to change before the children die of natural causes, so then I have to shut everything down (which involves a few grep and kill calls) and delete any files the children created. It's not really a big deal, but a bit of a pain in the neck. I'd like to create a setup where the children are all monitored so when I start up the parent

问题 I am attempting to stream output from a weighing scale that is written in python. This program (scale.py) runs continuously and prints the raw value every half second. import RPi.GPIO as GPIO import time import sys from hx711 import HX711 def cleanAndExit(): print "Cleaning..." GPIO.cleanup() print "Bye!" sys.exit() hx = HX711(5, 6) hx.set_reading_format("LSB", "MSB") hx.reset() hx.tare() while True: try: val = hx.get_weight(5) print val hx.power_down() hx.power_up() time.sleep(0.5) except