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

   1 # shellcheck disable=SC1090 disable=SC1091 # -- 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}:$PATH"
  17 done < <(find -L ~/bin -maxdepth 1 -type d 2> /dev/null)
  18
  19 # Set EMAIL from the freedesktop environment.d
  20 if ls ~/.config/environment.d/*.conf &> /dev/null; then
  21     eval "$(awk -F= '{print $0 ";export " $1}' ~/.config/environment.d/*.conf)"
  22 fi
  23
  24 # Pick up SSH agent socket
  25 if [ -z "$SSH_AUTH_SOCK" ]; then
  26     if [ -r ~/.ssh-agent.env ]; then
  27         source ~/.ssh-agent.env
  28     else
  29         SSH_AUTH_SOCK="/run/user/$(id -u)/keyring/ssh"
  30         export SSH_AUTH_SOCK
  31     fi
  32 fi
  33
  34
  35 ###########################
  36 # Interactive shells only #
  37 ###########################
  38
  39 if [ -z "${PS1}" ]; then
  40     return
  41 fi
  42
  43
  44 ################
  45 # bash options #
  46 ################
  47
  48 # Bash should check the terminal size after every command terminates
  49 shopt -s checkwinsize
  50
  51 # Don't attempt to tab-complete an empty line
  52 shopt -s no_empty_cmd_completion
  53
  54 # Prevent overwriting existing files on stdout redirection
  55 set -o noclobber
  56
  57 # Better history
  58 shopt -s histappend
  59 shopt -s cmdhist
  60 export HISTCONTROL='erasedups:ignoredups:ignorespace'
  61 export HISTSIZE='100000'
  62 export HISTTIMEFORMAT='%F %T '
  63
  64 [ -r /etc/bash_completion ] && source /etc/bash_completion
  65
  66 ##################
  67 # Terminal setup #
  68 ##################
  69
  70 # Disable CTRL-s / CTRL-q
  71 stty -ixon
  72
  73 # Use dark background colors in apps like vim
  74 export COLORFGBG='15;0'
  75
  76 #############
  77 # Fancy PS1 #
  78 #############
  79
  80 # Revision control status for git, hg, svn
  81
  82 function find_up_exists {
  83     local d="$PWD"
  84     while [ -n "$d" ]; do
  85         if [ -e "$d/$1" ]; then
  86             return 0
  87         fi
  88         d="${d%/*}"
  89     done
  90     return 1
  91 }
  92
  93 for p in /usr/lib/git-core/git-sh-prompt \
  94          /usr/share/git/completion/git-prompt.sh \
  95          /usr/local/share/git-core/contrib/completion/git-prompt.sh
  96 do
  97     [ -r "$p" ] && source "$p" && break
  98 done
  99
 100 function my_git_ps1 {
 101     find_up_exists .git || return
 102     GIT_PS1_SHOWDIRTYSTATE=1 \
 103     GIT_PS1_SHOWUNTRACKEDFILES=1 \
 104     __git_ps1 ' (%s)' 2> /dev/null
 105 }
 106
 107 function my_hg_ps1 {
 108     find_up_exists .hg || return
 109     local status
 110     status="$(hg status | cut -c1 | sort -u | tr -d ' \n')"
 111     echo -n " ($status)"
 112 }
 113
 114 function my_svn_ps1 {
 115     find_up_exists .svn || return
 116     local status
 117     status="$(svn status --ignore-externals 2> /dev/null | cut -c1 | sort -u | tr -d ' \n')"
 118     [ -n "$status" ] && echo -n " ($status)"
 119 }
 120
 121 # Two line prompt
 122 PS1=''
 123 PS1="$PS1"'\[\033[01;31m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]'
 124 PS1="$PS1"'\[\033[01;36m\]$(my_git_ps1 ; my_hg_ps1 ; my_svn_ps1)\[\033[00m\]'
 125
 126 if ! [[ "$TERM" =~ ^screen ]]; then
 127     PS1="$PS1"'\n\$ '
 128 else
 129     # matches with shelltitle in .screenrc
 130     PS1="$PS1"'\n\[\033k\033\\\]\$> '
 131 fi
 132
 133
 134 #################################
 135 # Display return codes on error #
 136 #################################
 137
 138 function print_exit_code {
 139     _exit_msg="\\033[01;33mexit code: $?\\033[00m"
 140     if [ -z "${BASH_SOURCE[1]}" ]; then
 141         echo -e "$_exit_msg"
 142     fi
 143     unset _exit_msg
 144 }
 145 trap print_exit_code ERR
 146
 147
 148 ###############
 149 # Pager setup #
 150 ###############
 151
 152 export PAGER='less'
 153 export LESS='RS'
 154
 155
 156 ################
 157 # Editor setup #
 158 ################
 159
 160 if emacsclient --version &> /dev/null; then
 161     export ALTERNATE_EDITOR='vim'
 162     export EDITOR='emacsclient --tty'
 163
 164     if [[ "$TERM" == screen* ]]; then
 165         alias edit='emacsclient --tty'
 166     else
 167         alias edit='emacsclient --create-frame --no-wait'
 168     fi
 169 else
 170     export EDITOR='vim'
 171     alias edit='vim'
 172 fi
 173
 174
 175 ##########################
 176 # ls aliases and colours #
 177 ##########################
 178
 179 # GNU ls colours
 180 eval "$(TERM=xterm dircolors 2> /dev/null)"
 181
 182 # BSD ls colours
 183 export LSCOLORS="ExFxCxDxBxEGEDABAGACAD"
 184
 185 # Lets find the ls
 186 if ls --color=auto -v &> /dev/null; then
 187     alias ls='ls --color=auto -v'
 188 elif gls --color=auto -v &> /dev/null; then
 189     alias ls='gls --color=auto -v'
 190 elif ls -G &> /dev/null; then
 191     alias ls='ls -G'
 192 else
 193     alias ls='ls -F'
 194 fi
 195 alias ll='ls -hlF'
 196 alias la='ls -ha'
 197 alias  l='ls -halF'
 198
 199 ##############
 200 # ps aliases #
 201 ##############
 202
 203 alias _psresources='ps -wAo pid,user,%cpu,%mem,stat,start,time,args'
 204 if [ "$(uname)" = "Linux" ]; then
 205     alias pscpu='_psresources --sort -%cpu|less -S'
 206     alias psmem='_psresources --sort -%mem|less -S'
 207     alias pstree='ps --forest -weo pid,user:16,args --sort start_time|less -S'
 208     alias pstime='ps -wAo pid,user,lstart,args --sort start_time|less -S'
 209 else
 210     alias pscpu='_psresources -r|less -S'
 211     alias psmem='_psresources -m|less -S'
 212     alias pstime='ps -wAo pid,user,lstart,args|less -S'
 213 fi
 214
 215 #################
 216 # Other aliases #
 217 #################
 218
 219 alias f='find . -iname'
 220 if echo x | grep -q --color=auto x &> /dev/null; then
 221     alias grep='grep --color=auto'
 222 fi
 223 alias rg='rg -p'
 224 alias scp='scp -o ControlPath=none'
 225 alias bc='bc -ql'
 226 alias watch='watch -n1'
 227 alias sudo='sudo ' # ability to use aliases with sudo
 228 alias sudosu='sudo su -l -s /bin/bash'
 229 alias python='PYTHONSTARTUP=~/.pythonrc.py python3'
 230 alias webshare='python3 -mhttp.server'
 231
 232 if ! command -v pbcopy &> /dev/null; then
 233     alias pbcopy='xsel --clipboard --input'
 234     alias pbcopym='xsel --input'
 235     alias pbpaste='xsel --clipboard --output'
 236     alias pbpastem='xsel --output'
 237 fi
 238
 239 # man with coloured headings and a terminal title
 240 function man {
 241     env \
 242         LESS_TERMCAP_md=$'\E[01;38;5;74m' \
 243         LESS_TERMCAP_me=$'\E[0m' \
 244         LESS_TERMCAP_us=$'\E[04;38;5;146m' \
 245         LESS_TERMCAP_ue=$'\E[0m' \
 246         LC_CTYPE=C \
 247     man "$@"
 248 }
 249
 250 # Creates the directory if it doesn't exist, and changes into it
 251 function mcd {
 252     # shellcheck disable=SC2164
 253     mkdir -p "$1" && cd "$1"
 254 }
 255
 256 # Sets the nice and ionice priorities for the current shell to the lowest values
 257 function slowshell {
 258     ionice -c 3 -p $$
 259     renice -n 19 -p $$
 260 }
 261
 262 # SSH to an unknown host and print the new known_hosts entry
 263 function ssh_new {
 264     local new_known_hosts_file
 265     new_known_hosts_file="$(mktemp)"
 266     ssh -o UserKnownHostsFile="$new_known_hosts_file" "$@" echo 'Connection ok'
 267     cat "$new_known_hosts_file"
 268     rm -f "$new_known_hosts_file"
 269 }
 270
 271 # SSH without verifying host key
 272 function ssh_unsafe {
 273     ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null "$@"
 274 }
 275
 276
 277 #########################
 278 # Optional local config #
 279 #########################
 280
 281 [ -r ~/.bashrc_local ] && source ~/.bashrc_local
 282
 283
 284 ##################
 285 # xterm titlebar #
 286 ##################
 287
 288 # When at a prompt display `hostname:workingdir`
 289 PROMPT_COMMAND='echo -ne "\\033]0;$(hostname|cut -d. -f1):${PWD/$HOME/\~}\\007"'
 290
 291 # Display the command about to be executed
 292 # This must go at the end of bashrc to avoid running the trap on commands in the bashrc
 293 trap 'echo -ne "\\033]0;$BASH_COMMAND\007"' DEBUG
 294
 295
 296 ###########
 297 # The end #
 298 ###########