posener

Story: Writing Scripts with Go

This is a story about how I tried to use Go for scripting. In this story, I’ll discuss the need for a Go script, how we would expect it to behave and the possible implementations; During the discussion I’ll deep dive to scripts, shells, and shebangs. Finally, we’ll discuss solutions that will make Go scripts work.

Why Go is good for scripting?

While python and bash are popular scripting languages, C, C++ and Java are not used for scripts at all, and some languages are somewhere in between.

bmccormack

No longer needed! https://twitter.com/trello/status/893213868322902017

mbn18

# Ubuntu 14.04 don't have nsenter - the straight forward way required me to install build tools and etc.
# I preferred to keep the system clean and install nsenter in a container and then copy the command to the host
# Note - its also possible to run nsenter from a container (didn't tried) https://github.com/jpetazzo/nsenter

# start a container
docker run --name nsenter -it ubuntu:14.04 bash

## in the docker
apt-get update
apt-get install git build-essential libncurses5-dev libslang2-dev gettext zlib1g-dev libselinux1-dev debhelper lsb-release pkg-config po-debconf autoconf automake autopoint libtool

renzok

#!/bin/bash

# Here short description of this script
# This is just a template to be used for writing new bash scripts

###
# Based on Google Style Guide: https://google.github.io/styleguide/shell.xml
# General remarks
# * Executables should have no extension (strongly preferred) or a .sh extension. 
# * Libraries must have a .sh extension and should not be executable

rodw

#!/bin/bash 
# A simple script to backup an organization's GitHub repositories.

#-------------------------------------------------------------------------------
# NOTES:
#-------------------------------------------------------------------------------
# * Under the heading "CONFIG" below you'll find a number of configuration
#   parameters that must be personalized for your GitHub account and org.
#   Replace the `<CHANGE-ME>` strings with the value described in the comments
#   (or overwrite those values at run-time by providing environment variables).

troy

# replace PAPERTRAIL_HOSTNAME and PAPERTRAIL_PORT
# see http://help.papertrailapp.com/ for additional PHP syslog options

function send_remote_syslog($message, $component = "web", $program = "next_big_thing") {
  $sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
  foreach(explode("\n", $message) as $line) {
    $syslog_message = "<22>" . date('M d H:i:s ') . $program . ' ' . $component . ': ' . $line;
    socket_sendto($sock, $syslog_message, strlen($syslog_message), 0, PAPERTRAIL_HOSTNAME, PAPERTRAIL_PORT);
  }
  socket_close($sock);