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.

asukakenji

Go (Golang) GOOS and GOARCH

All of the following information is based on go version go1.17.1 darwin/amd64.

GOOS Values

GOOS	Out of the Box
aix	✅
android	✅

matyapiro31

class MastodonSetUpGenerator < Rails::Generators::Base
  desc "Set up Mastodon at once."

  class_option :redis_host, type: :string, default: "localhost", desc: "Path for redis server"
  class_option :redis_port, type: :numeric, default: 6379, desc: "Port for redis server"
  class_option :redis_password, type: :string, default: "" , desc: "redis password"
  class_option :redis_db, type: :numeric, default: 0, desc: "redis db path"
  class_option :redis_url, type: :string, aliases: "-R", desc: "Set redis options like redis://password@host:port/path"
  class_option :db_host, type: :string, default: "/var/run/postgresql", desc: "ip address or Unix domain socket path for PostgreSQL"
  class_option :db_user, type: :string, default: "mastodon", desc: "PostgreSQL user"

rob-smallshire

On Mac

Download, but don't run, the Sierra installer from the Mac App Store. This places the installer at /Applications/Install\ macOS\ Sierra.app/.

Now run the following commands to build a suitable VM image from the installer:

git clone https://github.com/jonanh/osx-vm-templates
cd osx-vm-templates/packer

sudo ../prepare_iso/prepare_vdi.sh -D DISABLE_REMOTE_MANAGEMENT -o macOS_10.12.vdi /Applications/Install\ macOS\ Sierra.app/ .

okapies

Mastodon が他のインスタンスと情報交換をする OStatus API の使い方。使ってるだけのユーザは知る必要がない裏側の話。

host-meta

Mastodon インスタンスに対して、RFC6415 が規定する /.well-known/host-meta というパスを要求すると以下の XML が返ってくる.

<?xml version="1.0"?>
<XRD xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0">
  <Link rel="lrdd" type="application/xrd+xml" template="https://[MASTODON_HOST]/.well-known/webfinger?resource={uri}"/>
</XRD>

akihikodaki

policy_module(mastodon 1.1.2)

require {
  attribute file_type;
  attribute httpdcontent;
  attribute port_type;

  class dir {read search write};
  class netlink_route_socket {bind create getattr nlmsg_read read write};
  class process execmem;

mlocati

<?php

if (!function_exists('interface_exists')) {
    die('PHP version too old');
}
$throwables = listThrowableClasses();
$throwablesPerParent = splitInParents($throwables);
printTree($throwablesPerParent);
if (count($throwablesPerParent) !== 0) {
    die('ERROR!!!');

maglietti

To colaborate on a gist:

1. Clone your gist repo locally
2. Add your friend’s fork as a remote e.g. if your friend is named Cindy: git remote add-url cindy https://gist.github.com/cindy/df03bdacaef75a80f310
3. Fetch your friend’s commits: git fetch cindy/master
4. Merge your friend’s changes into your repo: git merge cindy/master
5. Push the changes back to GitHub: git push origin/master

noonat

• Download and install VirtualBox.
• Download the CoreOS ISO
• Create a new VM in VirtualBox
  • For the OS, Other Linux, 64-bit should be fine
  • Give the VM 1gb of memory, like your physical hardware has.
  • Create a disk of whatever size you want. I made a VMDK file that could expand dynamically up to 8gb.
• Mount the ISO in the VM
  • Right click on the VM and click settings
• Go to the storage tab

nikuyoshi

#!/bin/sh

# Environment list
# $GOOS     $GOARCH
# darwin    386
# darwin    amd64
# freebsd   386
# freebsd   amd64
# freebsd   arm
# linux     386