Add common dotfiles

.gitconfig

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+[alias]
+    amend = commit --amend
+    # Prettier git log
+    graph = log --graph --color --abbrev-commit --pretty=format:"%C(yellow)%h%C(green)%d%C(reset)%n%cd%n%cn%C(blue)%x20(%ce)%x20%C(cyan)[gpg:%GK%x20%G?]%C(reset)%n%B%n"
+
+[commit]
+    gpgsign = false
+
+[diff]
+    colormoved = default
+
+[gui]
+    diffops = --color-moved
+
+[init]
+    defaultBranch = master
+
+[pull]
+    rebase = true
+
+[rebase]
+    autosquash = true
+
+[user]
+    name = Casper V. Kristensen
+    email = <EMAIL>

.zshrc

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+#!/bin/zsh
+
+# http://zsh.sourceforge.net/Doc/Release/Options.html
+
+
+# =============================================================================
+# History
+# =============================================================================
+
+# If this is set, zsh sessions will append their history list to the history
+# file, rather than replace it.
+setopt APPEND_HISTORY
+
+# Save each command’s beginning timestamp and the duration to the history file.
+setopt EXTENDED_HISTORY
+
+# When searching for history entries in the line editor, do not display
+# duplicates of a line previously found.
+setopt HIST_FIND_NO_DUPS
+
+# Remove command lines from the history list when the first character on the
+# line is a space, or when one of the expanded aliases contains a leading space.
+setopt HIST_IGNORE_SPACE
+
+# Number of lines of history kept within the shell.
+HISTSIZE=10000
+
+# Number of lines of history to save to $HISTFILE.
+SAVEHIST=10000
+
+# File where history is saved.
+HISTFILE=~/.histfile
+
+
+# =============================================================================
+# Input/Output
+# =============================================================================
+
+# Allow comments even in interactive shells.
+setopt INTERACTIVE_COMMENTS
+
+# Don't beep on error.
+setopt NO_BEEP
+
+
+# =============================================================================
+# Changing Directories
+# =============================================================================
+
+# If a command is issued that can’t be executed as a normal command, and the
+# command is the name of a directory, perform the cd command to that directory.
+setopt AUTO_CD
+
+# Make cd push the old directory onto the directory stack (cd -<tab complete>).
+setopt AUTO_PUSHD
+
+# Don’t push multiple copies of the same directory onto the directory stack.
+setopt PUSHD_IGNORE_DUPS
+
+# Global aliases for fast directory navigation. Global aliases are substituted
+# anywhere on a line.
+alias ...='../..'
+alias ....='../../..'
+alias .....='../../../..'
+
+
+# =============================================================================
+# Environment
+# =============================================================================
+
+# Add ~/.local/bin to $PATH.
+export PATH="${HOME}/.local/bin:${PATH}"
+
+# Automatically remove duplicates from these arrays.
+typeset -U path PATH cdpath CDPATH fpath FPATH manpath MANPATH
+
+
+# =============================================================================
+# Job Control
+# =============================================================================
+
+# Report the status of background jobs immediately, rather than waiting until
+# just before printing a prompt.
+setopt NOTIFY
+
+# Print job notifications in the long format (show e.g. PIDs) by default.
+setopt LONG_LIST_JOBS
+
+# Don't send SIGHUP to background processes when the shell exits.
+setopt NO_HUP
+
+
+# =============================================================================
+# Colours
+# =============================================================================
+
+# Inside tmux TERM must be "screen", "tmux", or "tmux-256color".
+# See https://github.com/tmux/tmux/wiki/FAQ and https://github.com/tmux/tmux/issues/625.
+if [[ -v TMUX ]]; then
+    export TERM="tmux-256color"
+else
+    export TERM="xterm-256color"
+fi
+
+# Evaluate dircolors to populate $LS_COLORS
+eval "$(dircolors)"
+
+# Add colour to common applications using aliases.
+# https://wiki.archlinux.org/index.php/Color_output_in_console
+alias diff='diff --color=auto'
+alias grep='grep --color=auto'
+alias egrep='egrep --color=auto'
+alias fgrep='fgrep --color=auto'
+alias ip='ip --color=auto'
+
+
+# Add source code highlighting to less.
+# https://www.gnu.org/software/src-highlite/source-highlight.html#Using-source_002dhighlight-with-less
+if [[ -x "$(command -v source-highlight-esc.sh)" ]]; then  # debian
+    export LESSOPEN="| source-highlight-esc.sh %s --tab=4"
+    export LESS=' -R '
+elif [[ -x "$(command -v /usr/share/source-highlight/source-highlight-esc.sh)" ]]; then  # ubuntu
+    export LESSOPEN="| /usr/share/source-highlight/source-highlight-esc.sh %s --tab=4"
+    export LESS=' -R '
+else
+    print -P '%F{8}Warning: source-highlight package missing.'
+fi
+
+
+# =============================================================================
+# Aliases
+# =============================================================================
+
+# Better ls
+alias ls='ls --color=auto --classify --group-directories-first -v'
+alias ll='ls -lh'
+alias lla='ll -a'
+
+# Nice-to-have aliases for (in)frequently used or hard-to-remember commands.
+alias upgrade='sudo apt update && sudo apt upgrade && sudo apt autoremove'
+alias rcheck='rhash --check --recursive --percents .'
+alias rsynca='rsync --archive --compress --partial --human-readable --progress'
+alias serve='python3 -m http.server'
+
+function speedtest() {
+  function f() {
+    echo "=================================  $1  ================================="
+    curl --max-time 10 --output /dev/null $2
+  }
+  f "Datapacket" http://fra.download.datapacket.com/10000mb.bin
+  f "Cachefly" http://cachefly.cachefly.net/100mb.test
+  f "OVH" http://www.ovh.net/files/1Gio.dat
+  f "Digital Ocean" http://speedtest-ams3.digitalocean.com/100mb.test
+  f "Linode" http://speedtest.frankfurt.linode.com/100MB-frankfurt.bin
+  f "Online.net" http://ping.online.net/10000Mo.dat
+  f "Hetzner" https://speed.hetzner.de/1GB.bin
+  f "Vultr" https://fra-de-ping.vultr.com/vultr.com.1000MB.bin
+  f "LeaseWeb" https://mirror.de.leaseweb.net/speedtest/1000mb.bin
+  f "Ramnode" http://lg.nl.ramnode.com/static/1000MB.test
+  f "OVH GRA" http://gra.proof.ovh.net/files/1Gio.dat
+}
+
+
+# =============================================================================
+# Keybinds
+# =============================================================================
+
+# Enable searching through history for commands matching everything up to the
+# current cursor position. (https://coderwall.com/p/jpj_6q/zsh-better-history-searching-with-arrow-keys).
+autoload -U up-line-or-beginning-search
+autoload -U down-line-or-beginning-search
+zle -N up-line-or-beginning-search
+zle -N down-line-or-beginning-search
+
+# Use Emacs-style keybinds.
+bindkey -e
+
+# Bind keys as one would expect them to be bound.
+# Use 'cat -v' to character sequences.
+bindkey "$terminfo[kbs]" backward-delete-char             # BackSpace
+bindkey "$terminfo[khome]" beginning-of-line              # Home
+bindkey "$terminfo[kend]" end-of-line                     # End
+bindkey "$terminfo[kich1]" overwrite-mode                 # Insert
+bindkey "$terminfo[kdch1]" delete-char                    # Delete
+bindkey "$terminfo[kcuu1]" up-line-or-beginning-search    # Up
+bindkey "$terminfo[kcud1]" down-line-or-beginning-search  # Down
+bindkey "$terminfo[kcub1]" backward-char                  # Left
+bindkey "$terminfo[kcuf1]" forward-char                   # Right
+#bindkey "$terminfo[kpp]" x                               # PageUp
+#bindkey "$terminfo[knp]" x                               # PageDown
+bindkey "^[[1;5D" backward-word                           # Ctrl+Left
+bindkey "^[[1;5C" forward-word                            # Ctrl+Right
+bindkey "^H" backward-delete-word                         # Ctrl+Backspace
+bindkey "^[[3;5~" delete-word                             # Ctrl+Delete
+bindkey "^[[Z" reverse-menu-complete                      # Shift+Tab
+
+# Additional keybinds.
+bindkey "^[?" run-help                                    # Alt+?
+bindkey "^[+" run-help                                    # Alt++ (simpler on Danish keyboards)
+
+# Remove '/' from WORDCHARS, making Ctrl+{Right,Left,Backspace} work correctly
+# on path segments instead of operating on the entire path at once.
+WORDCHARS=${WORDCHARS:s@/@}
+
+
+# =============================================================================
+# Completion
+# =============================================================================
+
+autoload -Uz compinit
+compinit
+
+#
+# Options
+#
+
+# If a completion is performed with the cursor within a word, and a full
+# completion is inserted, the cursor is moved to the end of the word.
+setopt ALWAYS_TO_END
+
+# Automatically list choices on an ambiguous completion.
+setopt AUTO_LIST
+
+# Automatically use menu completion after the second consecutive request for
+# completion, for example by pressing the tab key repeatedly.
+setopt AUTO_MENU
+
+# If unset, the cursor is set to the end of the word if completion is started.
+# Otherwise it stays there and completion is done from both ends.
+setopt COMPLETE_IN_WORD
+
+# If a parameter is completed whose content is the name of a directory, then
+# add a trailing slash instead of a space.
+setopt AUTO_PARAM_SLASH
+
+# On an ambiguous completion, list possibilities instead of inserting the first
+# match immediately.
+setopt NO_MENU_COMPLETE
+
+#
+# Styles
+#
+
+# Group matches and describe.
+zstyle ':completion:*:*:*:*:*' menu select
+zstyle ':completion:*:matches' group 'yes'
+zstyle ':completion:*:options' description 'yes'
+zstyle ':completion:*:options' auto-description 'specify: %d'
+zstyle ':completion:*:corrections' format ' %F{green}-- %d (errors: %e) --%f'
+zstyle ':completion:*:descriptions' format ' %F{yellow}-- %d --%f'
+zstyle ':completion:*:messages' format ' %F{purple} -- %d --%f'
+zstyle ':completion:*:warnings' format ' %F{red}-- no matches found --%f'
+zstyle ':completion:*:default' list-prompt '%S%M matches%s'
+zstyle ':completion:*' format ' %F{yellow}-- %d --%f'
+zstyle ':completion:*' group-name ''
+zstyle ':completion:*' verbose yes
+
+# Try smart-case completion, then case-insensitive, then partial-word, and then
+# substring completion.
+# See http://zsh.sourceforge.net/Doc/Release/Completion-Widgets.html#Completion-Matching-Control.
+zstyle ':completion:*' matcher-list 'm:{a-z}={A-Z}' 'm:{a-zA-Z}={A-Z}{a-z}' 'r:|[._-]=* r:|=*' 'l:|=* r:|=*'
+
+# Use the same colors as 'ls' in completion
+zstyle ':completion:*' list-colors ${(s.:.)LS_COLORS}
+
+# Keep directories and files separated
+zstyle ':completion:*' list-dirs-first true
+
+# The value of this style is used in completion listing to separate the string
+# to complete from a description when completing options.
+zstyle ':completion:*:options' list-separator \|
+
+# This makes it so that the option descriptions are gray instead of the same
+# colour as the options themselves to avoid confusion. This code itself,
+# however, is very confusing and I have no idea how it works.
+zstyle ':completion:*:options' list-colors \
+	"=(#b)(-##)([^ ]#) #(\\|)(*)=0=38;5;23=${color[bold]}=38;5;237=38;5;242" \
+	"=(#b)(-##)([^ ]#)(*)=0=38;5;23=${color[bold]}" \
+    "=(#b) #(\\|)(*)=0=38;5;237=38;5;242"
+
+# Enable completion for '../'
+zstyle ':completion:*' special-dirs true
+
+# Behave as if there were a ‘*’ between sequences of slashes in filename paths.
+# E.g., foo//bar will be treated as foo/*/bar.
+zstyle ':completion:*' squeeze-slashes false
+
+# Make completions for apt etc. usable by activating completion caching layer.
+zstyle ':completion::complete:*' use-cache on
+
+# Don't complete hosts from /etc/hosts
+zstyle -e ':completion:*' hosts 'reply=()'
+
+# Provide more processes in completion of programs like kill and killall
+zstyle ':completion:*:*:*:*:processes' command 'ps -u $LOGNAME -o pid,user,command -w'
+zstyle ':completion:*:processes-names' command "ps -eo cmd= | sed 's:\([^ ]*\).*:\1:;s:\(/[^ ]*/\)::;/^\[/d'"
+zstyle ':completion:*:*:kill:*:processes' list-colors '=(#b) #([0-9]#) ([0-9a-z-]#)*=01;36=0=01'
+zstyle ':completion:*:*:kill:*' menu yes select
+zstyle ':completion:*:*:kill:*' force-list always
+zstyle ':completion:*:*:kill:*' insert-ids single
+
+# Man
+zstyle ':completion:*:manuals' separate-sections true
+zstyle ':completion:*:manuals.(^1*)' insert-sections true
+zstyle ':completion:*:man:*' menu yes select
+
+# Pasting with tabs doesn't perform completion
+zstyle ':completion:*' insert-tab pending
+
+# SSH/SCP/RSYNC tag order
+zstyle ':completion:*:(scp|rsync):*' tag-order 'hosts:-host:host hosts:-domain:domain hosts:-ipaddr:ip\ address *'
+zstyle ':completion:*:(scp|rsync):*' group-order users files all-files hosts-domain hosts-host hosts-ipaddr
+zstyle ':completion:*:ssh:*' tag-order 'hosts:-host:host hosts:-domain:domain hosts:-ipaddr:ip\ address *'
+zstyle ':completion:*:ssh:*' group-order users hosts-domain hosts-host users hosts-ipaddr
+zstyle ':completion:*:(ssh|scp|rsync):*:hosts-host' ignored-patterns '*(.|:)*' loopback ip6-loopback localhost ip6-localhost broadcasthost
+zstyle ':completion:*:(ssh|scp|rsync):*:hosts-domain' ignored-patterns '<->.<->.<->.<->' '^[-[:alnum:]]##(.[-[:alnum:]]##)##' '*@*'
+zstyle ':completion:*:(ssh|scp|rsync):*:hosts-ipaddr' ignored-patterns '^(<->.<->.<->.<->|(|::)([[:xdigit:].]##:(#c,2))##(|%*))' '127.0.0.<->' '255.255.255.255' '::1' 'fe80::*'
+
+# Ignore internal shell functions
+zstyle ':completion:*:functions' ignored-patterns '_*'
+
+
+# =============================================================================
+# Prompting
+# =============================================================================
+
+# Prompt expansion 101:  (http://zsh.sourceforge.net/Doc/Release/Prompt-Expansion.html)
+# %F => color dict  (https://wiki.archlinux.org/index.php/Zsh#Colors)
+# %f => reset color
+# %~ => current path
+# %n => username
+# %m => shortname host
+# %(?..) => prompt conditional - %(condition.true.false)
+# vcs_info:
+# %b => current branch
+# %a => current action (rebase/merge)
+
+#
+# Options
+#
+
+# Enable command substitution and arithmetic expansion in prompts using '$()'.
+setopt PROMPT_SUBST
+
+# Disallow virtual envirnments from updating the prompt.
+export VIRTUAL_ENV_DISABLE_PROMPT=1
+
+#
+# Git
+# http://zsh.sourceforge.net/Doc/Release/User-Contributions.html
+#
+
+# Load vcs_info git module
+autoload -Uz vcs_info
+zstyle ':vcs_info:*' enable git
+
+# Only export the one 'vcs_info_msg_0_' message variable.
+zstyle ':vcs_info:*' max-exports 1
+
+# Set formats
+zstyle ':vcs_info:git*' formats '@%F{yellow}%b%f'
+
+# actionformats is used if there is a special action going on in the current
+# repository; like an interactive rebase or a merge conflict.
+zstyle ':vcs_info:git*' actionformats '@%F{yellow}%b%f|%F{magenta}%a%f'
+
+#
+# Prompt
+#
+
+# Define the precmd hook function, which is executed before each prompt.
+precmd () {
+    vcs_info  # makes sure we have up-to-date vcs info
+}
+
+PROMPT=''
+
+# Show '(venv)' in gray if in virtual environment.
+PROMPT+='$([[ -v VIRTUAL_ENV ]] && print "%F{8}(`basename $VIRTUAL_ENV`)%f ")'
+
+# Show 'hostname:' if logged in through SSH. Only checked once since it cannot
+# change mid-session, unlike a virtual environment, like configured above.
+# https://upload.wikimedia.org/wikipedia/commons/1/15/Xterm_256color_chart.svg
+if [[ -v SSH_CONNECTION ]]; then
+    PROMPT+='%F{010}%m%f:'
+fi
+
+# Add the current working directory.
+PROMPT+='%F{12}%~%f'
+
+# Add version control info
+PROMPT+='${vcs_info_msg_0_}'
+
+# Make the prompt character green if last command successful, otherwise red.
+PROMPT+='%(?.%F{green}.%F{red})'
+
+# Add the actual prompt character: '#' if running with privileges, '❯' if not.
+PROMPT+='%(!.#.❯)%f '
+
+
+# =============================================================================
+# Xterm Title
+# =============================================================================
+
+autoload -Uz add-zsh-hook
+function xterm_title_precmd () {
+	print -Pn '\e]2;%n@%m %1~\a'
+}
+function xterm_title_preexec () {
+	print -Pn '\e]2;%n@%m %1~ %# '
+	print -n "${(q)1}\a"
+}
+if [[ "$TERM" == (screen*|xterm*|rxvt*) ]]; then
+	add-zsh-hook -Uz precmd xterm_title_precmd
+	add-zsh-hook -Uz preexec xterm_title_preexec
+fi
+
+
+# =============================================================================
+# Plugins -- Must be loaded last
+# =============================================================================
+
+#
+# zsh syntax highlighting: Fish shell like syntax highlighting for Zsh
+# https://github.com/zsh-users/zsh-syntax-highlighting/blob/master/docs/highlighters.md
+#
+
+if [[ -e /usr/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh ]]; then
+    source /usr/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
+
+    ZSH_HIGHLIGHT_HIGHLIGHTERS=(main brackets pattern cursor)
+
+    ## Main
+
+    ## Pattern
+    ZSH_HIGHLIGHT_PATTERNS+=('sudo rm' 'fg=white,bold,bg=red')
+    ZSH_HIGHLIGHT_PATTERNS+=('sudo dd' 'fg=white,bold,bg=red')
+
+    ## Cursor
+    ZSH_HIGHLIGHT_STYLES[cursor]='underline'
+
+else
+    print -P '%F{8}Warning: zsh-syntax-highlighting package missing.'
+fi
+
+#
+# zsh auto-suggestions
+#
+
+if [[ -e /usr/share/zsh-autosuggestions/zsh-autosuggestions.zsh ]]; then
+    source /usr/share/zsh-autosuggestions/zsh-autosuggestions.zsh
+
+    ZSH_AUTOSUGGEST_STRATEGY=(match_prev_cmd completion)
+    #ZSH_AUTOSUGGEST_COMPLETION_IGNORE="(|sudo )apt install *"
+else
+    print -P '%F{8}Warning: zsh-autosuggestions package missing.'
+fi

authorized_keys

@@ -0,0 +1,2 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPB/qr63FB0ZqOe/iZGwIKNHD8a1Ud/mXVjQPmpIG7pM caspervk@omega
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICCQmHqqyPepTjCuDv5aVvaVd7UxgF0xxwwGRKfx4Ftn caspervk@zeta

install/README.md

@@ -0,0 +1,6 @@
+# Scripts
+This was originally a bunch of convoluted `ansible` code, but honestly it's way
+easier to treat all my computers and servers as pets, since I don't have that
+many them anyway.
+
+**These scripts should be run from the repository root, e.g. `install/common.sh`.**

install/common.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+
+set -e
+
+# Packages
+sudo apt update
+sudo apt upgrade
+sudo apt install -y \
+     openssh-server \
+     git \
+     curl \
+     wget \
+     dnsutils \
+     rsync \
+     htop \
+     tmux \
+     ufw \
+     vnstat \
+     ntp \
+     pwgen \
+     fish \
+     source-highlight
+     #zsh \
+     #zsh-syntax-highlighting \
+     #zsh-autosuggestions \
+
+
+# Shell
+#chsh -s /bin/zsh
+#ln -sr .zshrc ~/
+chsh -s /usr/bin/fish
+
+
+# SSH
+read -p "Please set sshd port to 222"
+sudo nano /etc/ssh/sshd_config
+
+ssh-keygen -t ed25519
+ln -sr authorized_keys ~/.ssh/authorized_keys
+ln -sr ssh_config ~/.ssh/config
+
+
+# Firewall
+sudo ufw default deny incoming
+sudo ufw default allow outgoing
+sudo ufw allow 222/tcp comment "sshd"

install/desktop.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+set -e
+
+# Packages
+sudo apt update
+sudo apt upgrade
+sudo apt install -y \
+     vlc \
+     keepassxc \
+     filelight \
+     meld \
+     peek \
+     gimp \
+     filezilla \
+     qbittorrent \
+     nfoview \
+     audacity \
+     tor \
+     torbrowser-launcher \
+     libnotify-bin
+
+
+# DNS
+sudo rm /etc/resolv.conf  # clear potential symlink
+echo "nameserver 159.69.4.2" | sudo tee /etc/resolv.conf
+
+
+# Git
+ln -sr .gitconfig ~/
+read -p "Git email: " email  # avoid web scraping of email address
+sed -i "s/<EMAIL>/$email/" .gitconfig
+
+
+# Syncthing
+sudo apt install -y syncthing
+sudo ufw allow syncthing
+systemctl --user enable syncthing.service
+systemctl --user start syncthing.service
+systemctl --user status syncthing.service
+firefox http://localhost:8384

ssh_config

@@ -0,0 +1,18 @@
+Host alpha
+    HostName alpha.caspervk.net
+    Port 222
+
+Host delta
+    HostName delta.caspervk.net
+    Port 222
+
+Host lambda
+    HostName lambda.caspervk.net
+    Port 222
+
+Host sigma
+    HostName sigma.caspervk.net
+    Port 222
+
+Host git.caspervk.net
+    Port 222