code.delx.au - dotfiles/blob - .bashrc

   1 # shellcheck disable=SC1090 # -- Can't follow non-constant source
   2
   3 ###########################
   4 # Settings for all shells #
   5 ###########################
   6
   7 # Set umask, depending on the user ID
   8 if [ "$(id -un)" = "root" ]; then
   9     umask 0022
  10 else
  11     umask 0007
  12 fi
  13
  14 # Add ~/bin and subdirs to PATH if needed
  15 while read -r p; do
  16     echo "$PATH" | tr ':' '\n' | grep -qxF "$p" || PATH="${p}:$PATH"
  17 done < <(find -L ~/bin -maxdepth 1 -type d 2> /dev/null)
  18
  19 # Set EMAIL from the freedesktop environment.d
  20 if [ -r ~/.config/environment.d/10-email.conf ]; then
  21     source ~/.config/environment.d/10-email.conf
  22     export EMAIL
  23 fi
  24
  25 # Pick up SSH agent socket
  26 if [ -z "$SSH_AUTH_SOCK" ]; then
  27     if [ -r ~/.ssh-agent.env ]; then
  28         source ~/.ssh-agent.env
  29     else
  30         SSH_AUTH_SOCK="/run/user/$(id -u)/keyring/ssh"
  31         export SSH_AUTH_SOCK
  32     fi
  33 fi
  34
  35
  36 ###########################
  37 # Interactive shells only #
  38 ###########################
  39
  40 if [ -z "${PS1}" ]; then
  41     return
  42 fi
  43
  44
  45 ################
  46 # bash options #
  47 ################
  48
  49 # Bash should check the terminal size after every command terminates
  50 shopt -s checkwinsize
  51
  52 # Don't attempt to tab-complete an empty line
  53 shopt -s no_empty_cmd_completion
  54
  55 # Prevent overwriting existing files on stdout redirection
  56 set -o noclobber
  57
  58 # Better history
  59 shopt -s histappend
  60 shopt -s cmdhist
  61 export HISTCONTROL='erasedups:ignoredups:ignorespace'
  62 export HISTSIZE='100000'
  63 export HISTTIMEFORMAT='%F %T '
  64
  65
  66 ##################
  67 # Terminal setup #
  68 ##################
  69
  70 # Disable CTRL-s / CTRL-q
  71 stty -ixon
  72
  73 # hostname:workingdir
  74 PROMPT_COMMAND='echo -ne "\\033]0;$(hostname| cut -d. -f1):${PWD/$HOME/~}\\007"'
  75
  76
  77 #############
  78 # Fancy PS1 #
  79 #############
  80
  81 # Revision control status for git, hg, svn
  82
  83 function find_up_exists {
  84     local d="$PWD"
  85     while [ -n "$d" ]; do
  86         if [ -e "$d/$1" ]; then
  87             return 0
  88         fi
  89         d="${d%/*}"
  90     done
  91     return 1
  92 }
  93
  94 [ -r /usr/share/git/completion/git-prompt.sh ] && source /usr/share/git/completion/git-prompt.sh
  95 function my_git_ps1 {
  96     find_up_exists .git || return
  97     GIT_PS1_SHOWDIRTYSTATE=1 \
  98     GIT_PS1_SHOWUNTRACKEDFILES=1 \
  99     __git_ps1 ' (%s)' 2> /dev/null
 100 }
 101
 102 function my_hg_ps1 {
 103     find_up_exists .hg || return
 104     local status
 105     status="$(hg status | cut -c1 | sort -u | tr -d ' \n')"
 106     echo -n " ($status)"
 107 }
 108
 109 function my_svn_ps1 {
 110     find_up_exists .svn || return
 111     local status
 112     status="$(svn status --ignore-externals 2> /dev/null | cut -c1 | sort -u | tr -d ' \n')"
 113     [ -n "$status" ] && echo -n " ($s)"
 114 }
 115
 116 # Two line prompt
 117 PS1=''
 118 PS1="$PS1"'\[\033[01;31m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]'
 119 PS1="$PS1"'\[\033[01;36m\]$(my_git_ps1 ; my_hg_ps1 ; my_svn_ps1)\[\033[00m\]'
 120
 121 if ! [[ "$TERM" =~ ^screen ]]; then
 122     PS1="$PS1"'\n\$ '
 123 else
 124     # matches with shelltitle in .screenrc
 125     PS1="$PS1"'\n\[\033k\033\\\]\$> '
 126 fi
 127
 128
 129 #################################
 130 # Display return codes on error #
 131 #################################
 132
 133 function print_exit_code {
 134     _exit_msg="\\033[01;33mexit code: $?\\033[00m"
 135     if [ -z "${BASH_SOURCE[1]}" ]; then
 136         echo -e "$_exit_msg"
 137     fi
 138     unset _exit_msg
 139 }
 140 trap print_exit_code ERR
 141
 142
 143 ###############
 144 # Pager setup #
 145 ###############
 146
 147 export PAGER='less'
 148 export LESS='RS'
 149
 150
 151 ################
 152 # Editor setup #
 153 ################
 154
 155 if emacsclient --version &> /dev/null; then
 156     export ALTERNATE_EDITOR='vim'
 157     export EDITOR='emacsclient --tty'
 158
 159     if [[ "$TERM" == screen* ]]; then
 160         alias edit='emacsclient --tty'
 161     else
 162         alias edit='emacsclient --create-frame --no-wait'
 163     fi
 164 else
 165     export EDITOR='vim'
 166     alias edit='vim'
 167 fi
 168
 169
 170 ##########################
 171 # ls aliases and colours #
 172 ##########################
 173
 174 # GNU ls colours
 175 # shellcheck disable=SC2046
 176 eval $(TERM=xterm dircolors 2> /dev/null)
 177
 178 # BSD ls colours
 179 export LSCOLORS="ExFxCxDxBxEGEDABAGACAD"
 180
 181 # Lets find the ls
 182 if ls --color=auto -v &> /dev/null; then
 183     alias ls='ls --color=auto -v'
 184 elif gls --color=auto -v &> /dev/null; then
 185     alias ls='gls --color=auto -v'
 186 elif ls -G &> /dev/null; then
 187     alias ls='ls -G'
 188 else
 189     alias ls='ls -F'
 190 fi
 191 alias ll='ls -hlF'
 192 alias la='ls -ha'
 193 alias  l='ls -halF'
 194
 195 ##############
 196 # ps aliases #
 197 ##############
 198
 199 alias _psresources='ps -wAo pid,user,%cpu,%mem,stat,start,time,args'
 200 if [ "$(uname)" = "Linux" ]; then
 201     alias pscpu='_psresources --sort -%cpu|less -S'
 202     alias psmem='_psresources --sort -%mem|less -S'
 203     alias pstree='ps --forest -weo pid,user:16,args --sort start_time|less -S'
 204     alias pstime='ps -wAo pid,user,lstart,args --sort start_time|less -S'
 205 else
 206     alias pscpu='_psresources -r|less -S'
 207     alias psmem='_psresources -m|less -S'
 208     alias pstime='ps -wAo pid,user,lstart,args|less -S'
 209 fi
 210
 211 #################
 212 # Other aliases #
 213 #################
 214
 215 alias f='find . -iname'
 216 if echo x | grep -q --color=auto x &> /dev/null; then
 217     alias grep='grep --color=auto'
 218 fi
 219 alias rg='rg -p'
 220 alias scp='scp -o ControlPath=none'
 221 alias bc='bc -ql'
 222 alias watch='watch -n1'
 223 alias sudo='sudo ' # ability to use aliases with sudo
 224 alias sudosu='sudo su -l -s /bin/bash'
 225 alias py='PYTHONSTARTUP=~/.pythonrc.py python'
 226 alias webshare='python3 -mhttp.server'
 227
 228 if ! command -v pbcopy &> /dev/null; then
 229     alias pbcopy='xsel --clipboard --input'
 230     alias pbcopym='xsel --input'
 231     alias pbpaste='xsel --clipboard --output'
 232     alias pbpastem='xsel --output'
 233 fi
 234
 235 # man with coloured headings and a terminal title
 236 function man {
 237     echo -ne "\\033]0;man $*\\007"
 238
 239     env \
 240         LESS_TERMCAP_md=$'\E[01;38;5;74m' \
 241         LESS_TERMCAP_me=$'\E[0m' \
 242         LESS_TERMCAP_us=$'\E[04;38;5;146m' \
 243         LESS_TERMCAP_ue=$'\E[0m' \
 244     man --encoding ascii "$@"
 245 }
 246
 247 # Creates the directory if it doesn't exist, and changes into it
 248 function mcd {
 249     # shellcheck disable=SC2164
 250     mkdir -p "$1" && cd "$1"
 251 }
 252
 253 # Sets the nice and ionice priorities for the current shell to the lowest values
 254 function slowshell {
 255     ionice -c 3 -p $$
 256     renice -n 19 -p $$
 257 }
 258
 259 # SSH to an unknown host and print the new known_hosts entry
 260 function ssh_new {
 261     local new_known_hosts_file
 262     new_known_hosts_file="$(mktemp)"
 263     ssh -o UserKnownHostsFile="$new_known_hosts_file" "$@" echo 'Connection ok'
 264     cat "$new_known_hosts_file"
 265     rm -f "$new_known_hosts_file"
 266 }
 267
 268 # SSH without verifying host key
 269 function ssh_unsafe {
 270     ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null "$@"
 271 }
 272
 273 ###########
 274 # The end #
 275 ###########