bashrc/.bashrc

#!/bin/bash
#
# ~/.bashrc
#
# Thurstylark
#
# Reference: https://wiki.thurstylark.com/Bashrc.html

### MISC ###

# If not running interactively, don't do anything
[[ $- != *i* ]] && return

HISTCONTROL=ignoreboth # Don't put duplicate lines or lines starting with space in the history.

shopt -s autocd # If a directory is given without any command, CD into it.

# Some programs, such as tee(1), like to use this variable
export LS_COLORS='di=34;40:ln=35;40:so=32;40:pi=33;40:ex=31;40:bd=34;46:cd=34;43:su=0;41:sg=0;46:tw=0;42:ow=0;43:'

# Prefer vim, but if it's not installed, nano will do
[[ -s /usr/bin/vim ]] && export EDITOR=vim || export EDITOR=nano

# Enable pkgfile to automatically search for packages if pkgfile is installed
[[ -s /usr/share/doc/pkgfile/command-not-found.bash ]] && source /usr/share/doc/pkgfile/command-not-found.bash


# Enables colored Man pages:
man() {
	env LESS_TERMCAP_mb=$'\E[01;31m' \
	LESS_TERMCAP_md=$'\E[01;38;5;74m' \
	LESS_TERMCAP_me=$'\E[0m' \
	LESS_TERMCAP_se=$'\E[0m' \
	LESS_TERMCAP_so=$'\E[38;5;246m' \
	LESS_TERMCAP_ue=$'\E[0m' \
	LESS_TERMCAP_us=$'\E[04;38;5;146m' \
	man "$@"
}

# Do the same for awman
awman() {
	env LESS_TERMCAP_mb=$'\E[01;31m' \
	LESS_TERMCAP_md=$'\E[01;38;5;74m' \
	LESS_TERMCAP_me=$'\E[0m' \
	LESS_TERMCAP_se=$'\E[0m' \
	LESS_TERMCAP_so=$'\E[38;5;246m' \
	LESS_TERMCAP_ue=$'\E[0m' \
	LESS_TERMCAP_us=$'\E[04;38;5;146m' \
	awman "$@"
}


### PROMPT ###

promptsetup() {
	# Color definitions for prompt
	local fg_brightred='\[$(tput setaf 9)\]'
	local fg_blue='\[$(tput setaf 4)\]'
	local fg_magenta='\[$(tput setaf 13)\]'
	local fg_cyan='\[$(tput setaf 6)\]'
	local fg_brightcyan='\[$(tput setaf 14)\]'
	local fg_green='\[$(tput setaf 2)\]'
	local reset='\[$(tput sgr0)\]'
	local hostname='\h'
	local mixin

	# [hh:mm][username@hostname pwd]$

	# Remotely, hostname is red.
	[ -n "$SSH_CLIENT" ] && hostname="${fg_brightred}\h${reset}"

	# If in a python venv, add venv name in green.
	[ -n "$VIRTUAL_ENV" ] && mixin=" ${fg_green}$(basename $VIRTUAL_ENV)${reset}"

	# If in a vcsh repo env, add repo name in magenta.
	[ -n "$VCSH_REPO_NAME" ] && mixin=" ${fg_magenta}$VCSH_REPO_NAME${reset}"

	PS1="${fg_blue}[\A]${fg_cyan}[${fg_brightcyan}\u${fg_cyan}@${hostname}${mixin} ${fg_cyan}\W]${reset}\$ "
}

promptsetup

### ALIASES ###

# Colorize all `ls` output:
alias ls='ls -AF --color=auto'

# Map "la" to `ls -la`
alias la='ls -laFh --color=auto'

# Colorize `grep` output 
alias grep='grep --color=auto'

# Change layout of lsblk to include FSTYPE and remove MAJ:MIN, RM, and RO collumns.
alias lsblk='lsblk -o NAME,FSTYPE,SIZE,TYPE,MOUNTPOINT'

# Always use sudo when using nmap.
alias nmap='sudo -E nmap'

# Switch $TERM temporarily (for logging into machines that don't have tmux-256color terminfo)
alias screenterm='TERM=screen-256color'

# I'm tired of managing weechat configs and multiple nicks
# Reference: https://wiki.thurstylark.com/Weechat.html

# If you don't have weechat installed, connect to the existing tmux session through mosh
[[ ! -s /usr/bin/weechat ]] && alias weechat='mosh vps -- tmux attach -dt weechat'
# If you are thurstylark-vps, connect to the existing tmux session locally
[[ "$HOSTNAME" = "thurstylark-vps" ]] && alias weechat='tmux attach -dt weechat'

### FUNCTIONS ###

# Print Dell Service Tag
getdst() {
	if [[ "$1" = "-l" ]]; then
		printf "http://www.dell.com/support/home/us/en/04/product-support/servicetag/%s/configuration\n" "$(getdst)"
	else
		sudo dmidecode -s system-serial-number
	fi
}

countdown() {
	local secs="$1"
	while [ $secs -gt 0 ]; do
		echo -ne "$secs\033[0K\r"
		sleep 1
		: $((secs--))
	done
}

# Screenshot utils
shot() {
	# Usage: shot XY
	local destdir="$HOME/Pictures/screenshots"
	local fname="shot-$(date +%F-%T).png"
	local pb="fb"
	local paste msgt msgd opts

	if [ -z "$1" ]; then
		printf "Usage: shot XY
X: Target
Y: Destination

Valid Targets:
w	Active Window
a	All displays
s	Mouse Selection

Valid Destinations:
f	Save to file (defined in function)
p	Upload to a pastebin (defined in function)
"
		return
	fi

	# X: What to capture
	case ${1:0:1} in
		# Active window
		w) 	printf "Focus target window now...\n"
			opts="-i $(xdotool getactivewindow)"
			msgt="active window"
			;;
		# All
		a)	msgt="all displays"
			;;
		# Mouse selection
		s) 	opts="-s --noopengl"
			msgt="mouse selection"
			;;

		*)	printf "Unknown target: %s\n" "${1:0:1}"
			return
			;;
	esac
	# Y: Where to put the result
	case ${1:1:1} in
		# Save to file
		f)	msgd="file: $destdir/$fname"
			;;
		# Post to a pastebin
		p)	destdir=$destdir/pasted
			msgd="pastebin"
			paste=1;;

		*)	printf "Unknown destination: %s\n" "${1:1:1}"
			return
			;;
	esac

	# Make sure destination directory will exist
	[[ ! -d "$destdir" ]] && mkdir -p "$destdir"
	local fpath="${destdir}/${fname}"
	# If target is active window, give a 5 second countdown before running maim
	[[ "$msgt" = "active window" ]] && countdown 5

	maim $opts "$fpath"
	printf "Captured %s -> %s\n" "$msgt" "$msgd"
	# If destination is a pastebin, do the needful
	[[ "$paste" ]] && $pb "$fpath"
} 

fontfind() { if [[ -z $1 || ${#1} -gt 1 ]]; then
		printf "E: only one character accepted"
	fi
	local glyph=$1
	FC_DEBUG=4 pango-view -qt "$glyph" 2>&1 | awk -F \" '/family: / { m = $2 } END { print m }'
}

vactivate() {
	local path=~/.venv/$1

	if [[ ! -d $path ]]; then
		python -m venv --prompt "venv: $1" --system-site-packages $path
	fi
	source $path/bin/activate; bash; deactivate
}

# Append a local bashrc if it exists. This gives the ability to insert untracked
# modifications to this .bashrc

[[ -s ~/.local.bashrc ]] && source ~/.local.bashrc