mstuttgart

Updating expired GPG keys and their backup 🔑🔐💻

I use a GPG key to sign my git commits.

An error like this one might be a sign of an expired GPG key.

error: gpg failed to sign the data fatal: failed to write commit object

mstuttgart

How to XFCE with i3WM

Download

1. Download XFCE Distribution
2. Download i3 only (i3 status i3 lock dmenu is not needed)

⚠️ Do not installed preconfigured or distributed i3wm to avoid conflicts with XFCE settings
e.g.
do sudo dnf install i3 --setopt=install_weak_deps=False
dont "i3 desktop" or @i3-desktop-environment

mstuttgart

Installation

1. mkdir -p ~/.config && touch ~/.config/ssh-agent.pid
2. Paste the contents of ssh-agent-manage.sh into your .bashrc or .bash_profile or similar
3. killall -9 ssh-agent
4. Start a new terminal session (note: old sessions will not see ssh-agent, only new ones)

Details

This snippet, when included in .bashrc, will ensure that your session has a working ssh-agent with all your ssh keys loaded into it. It does this without creating separate ssh-agent processes by:

mstuttgart

vs Questions

---

1. http://stackoverflow.com/questions/804115 (rebase vs merge).
2. https://www.atlassian.com/git/tutorials/merging-vs-rebasing (rebase vs merge)
3. https://www.atlassian.com/git/tutorials/undoing-changes/ (reset vs checkout vs revert)
4. http://stackoverflow.com/questions/2221658 (HEAD^ vs HEAD~) (See git rev-parse)
5. http://stackoverflow.com/questions/292357 (pull vs fetch)
6. http://stackoverflow.com/questions/39651 (stash vs branch)
7. http://stackoverflow.com/questions/8358035 (reset vs checkout vs revert)

mstuttgart

# Makefile for python code
# 
# > make help
#
# The following commands can be used.
#
# init:  sets up environment and installs requirements
# install:  Installs development requirments
# format:  Formats the code with autopep8
# lint:  Runs flake8 on src, exit if critical rules are broken

mstuttgart

from ansible import playbook, callbacks

# uncomment the following to enable silent running on the playbook call
# this monkey-patches the display method on the callbacks module
# callbacks.display = lambda *a,**ka: None

# the meat of the meal.  run a playbook on a path with a hosts file and ssh key
def run_playbook(playbook_path, hosts_path, key_file):
    stats = callbacks.AggregateStats()
    playbook_cb = callbacks.PlaybookCallbacks(verbose=0)

mstuttgart

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Script to bootstrap an Odoo database (8.0)."""
import odoorpc

# Odoo connection
SUPER_PWD = 'admin'
HOST = 'localhost'
PORT = 8069
DB = 'my_db'

mstuttgart

- name: ensure github.com is a known host
  lineinfile:
    dest: /root/.ssh/known_hosts
    create: yes
    state: present
    line: "{{ lookup('pipe', 'ssh-keyscan -t rsa github.com') }}"
    regexp: "^github\\.com"

mstuttgart

Logitech MX Master 3 Extras for Linux With logiops

The Logitech Options program isn't available for Linux, but a nice hacker on GitHub (PixlOne) created an open source project that lets you obtain some of that functionality. It's called logiops. It works in conjunction with the Solaar project as well, which I find especially handy since that shows your available battery life in the system tray and lets you pair/unpair devices with the Logitech Unifying Receiver.

Here are some additional pages with info that I used to generate this documentation:

• https://github.com/PixlOne/logiops/wiki/Configuration
• https://github.com/PixlOne/logiops/blob/master/logid.example.cfg
• https://github.com/torvalds/linux/blob/master/include/uapi/linux/input-event-codes.h

mstuttgart

# delete local tag '12345'
git tag -d 12345
# delete remote tag '12345' (eg, GitHub version too)
git push origin :refs/tags/12345
# alternative approach
git push --delete origin tagName
git tag -d tagName