.bash_reuse

#!/usr/bin/env bash
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## .bash_reuse
########################################################
## - Cross platform interactive bash stuff goes here
########################################################
## This file contains aliases and functions that can be
## re-used across Mac and Linux. Source it from .bashrc
## It can also be used in a Keyboard Maestro macro (or similar)
## to "type" commands into a terminal window.
########################################################
## Usage:
##   $ echo "Sourcing https://gist.githubusercontent.com/m-thomson/680080f984af10fb0e2a3af80ac60094/raw/.bash_reuse"
##   $ source <(curl -s https://gist.githubusercontent.com/m-thomson/680080f984af10fb0e2a3af80ac60094/raw/.bash_reuse)
########################################################
## Update gist:
##   $ gist -u 680080f984af10fb0e2a3af80ac60094 bash.stow/.bash_reuse
## (gist is a ruby gem installed via brew install gist)
## Note: A post-commit hook does this automatically
########################################################

# -- This file defines interactive Bash conveniences so it
# -- should only execute if shell is interactive
[ -n "${BASH_VERSION:-}" ] || return 0
[[ $- == *i* ]] || return 0

echo "💫 Sourcing .bash_reuse (Remember: use 'alias' to show shell aliases and 'funcs' to show functions)" >&2
echo "🐚 Bash v${BASH_VERSION} on ${OSTYPE}" >&2
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# Bash Config (Cross platform)
########################################################

# -- Large history
HISTSIZE=100000
HISTFILESIZE=200000

# -- Ignore duplicates + commands starting with space
HISTCONTROL=ignoreboth

# -- Append instead of overwrite
shopt -s histappend

# -- Timestamp every command
HISTTIMEFORMAT="%F %T "

# -- Write to file + reload after every command
PROMPT_COMMAND='history -a; history -n'

# -- Bash autocomplete ignoring case https://superuser.com/a/435127/396106
bind "set completion-ignore-case on"

# -- Check the window size after each command and update the values of LINES and COLUMNS.
shopt -s checkwinsize

########################################################
# Environment (Cross platform)
########################################################

export EDITOR='nano'

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# Aliases (Cross platform)
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# -- Note: on MacOS, ls is also aliased to use gnu ls
alias l='ls -CXAGFh --group-directories-first --color=auto'
alias ll='ls -XAGFhl --group-directories-first --color=auto'
alias la='ls -A'
# Options explained:
#   -C                         list entries by columns
#   -X                         sort alphabetically by entry extension
#   -A, --almost-all           do not list implied . and ..
#   -G, --no-group             in a long listing, don't print group names
#   -l                         use a long listing format
#   -h, --human-readable       with -l and/or -s, print human readable sizes
#   -F, --classify             append indicator (one of */=>@|) to entries

# -- Redo the last command with sudo. Two versions depending on mood :)
alias fuck='sudo $(fc -nl -1)'
alias please='sudo $(fc -nl -1)'

# -- Misc
alias ..="cd .."
alias h="history"
alias g="grep -E -i"
alias m="more"
alias hig='history|grep -E -i'
alias tre="tree -C -F --dirsfirst --filelimit 20"
alias treed="tree --si -C -s --du -F|grep -F '/'"
alias zscat="zstd -cd"
alias path='echo $PATH|tr ":" "\n"|sort --ignore-case'
alias usage="echo 'List size of immediate subfolders'>&2; du -h --max-depth=1"
alias hosts="sudo nano /etc/hosts; echo 'Remember to flush DNS cache if needed (alias: flush-dns) '"
alias funcs="declare -f|grep -E '^[a-zA-Z0-9][-a-zA-Z0-9_]* \(\)'|grep -v '^nvm_'"
alias bat="bat --theme=Dracula"

# -- Docker
alias drps="docker ps --format \"table {{.ID}}\t{{.Image}}\t{{.Names}}\t{{.Ports}}\"|sed -r 's/:::([^,])+(, |$)//g'"

# -- Use less as a replacement for head and tail commands. +G = go to end -S = Prevent text wrap -n = Prevent line numbers
alias head2='less -S -n'
alias tail2='less -S +G -n'

# -- Allow quick editing (and reload) of bash configs.
alias bash-profile="nano ~/.bash_profile && echo Use \\'bash-profile-reload\\' to update current session to latest edits"
alias bash-profile-reload="source ~/.bash_profile"
alias bash-rc="nano ~/.bashrc && echo Use \\'bash-rc-reload\\' to update current session to latest edits"
alias bash-rc-reload="source ~/.bashrc"

# -- tmux
alias ta='tmux attach'

# -- just
alias jmenu="just --choose"
alias j="just --unstable"

# -- Send our private key to a remote machine
alias sendpvtkey="ssh-copy-id -i ~/.ssh/id_ed25519.pub "

# -- Fairnames
alias fn='cd "$FN_CODE_DIR"'

# -- Clear DNS cache on linux (macOS has it's own version)
alias flush-dns="sudo systemd-resolve --flush-caches && echo 'Cache cleared. This assumes you are using systemd-resolved DNS services';"


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# Functions (Cross platform)
########################################################
function showlan {
  ## -- I'm not crazy about this but its the only native way
  ## -- Perhaps a custom script is in order.
  ## -- See https://www.npmjs.com/package/bonjour-service
  if [[ "$OSTYPE" == *darwin* ]]; then
    local wait="${1:-2}"
    local -a services=("_ssh._tcp:SSH" "_sftp-ssh._tcp:SFTP" "_smb._tcp:SMB" "_http._tcp:Web" "_printer._tcp:Printer" "_ipp._tcp:IPP")
    local item type label
    for item in "${services[@]}"; do
      type="${item%%:*}"
      label="${item#*:}"
      printf '\n== %s (%s) ==\n' "$label" "$type"
      perl -e 'alarm shift; exec @ARGV' "$wait" dns-sd -B "$type" local 2>/dev/null | awk '/Add/ { print; fflush() }'
    done
  else
    avahi-browse -rtp --all | perl -pe 's/\\([0-9]{3})/chr($1)/ge' | grep -E ';IPv4;.*;192\.' | cut -d ';' -f 4-9 | sort -t ';' -k 2 | grep -vE "(Workstation;|\._tcp|\._udp|@)" | tr ';' '\t' | column -t -s $'\t'
  fi
}
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# End of .bash_reuse
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