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

   1 # shellcheck disable=SC1090 disable=SC1091 # -- Can't follow non-constant source
   2 # shellcheck disable=SC1003 # -- Don't complain about '\e\\'
   3
   4 ###########################
   5 # Settings for all shells #
   6 ###########################
   7
   8 # Set umask, depending on the user ID
   9 if [ "$(id -un)" = "root" ]; then
  10     umask 0022
  11 else
  12     umask 0007
  13 fi
  14
  15 # Add ~/bin and subdirs to PATH if needed
  16 while read -r p; do
  17     echo "$PATH" | tr ':' '\n' | grep -qxF "$p" || PATH="${p}:$PATH"
  18 done < <(find -L ~/bin -maxdepth 1 -type d 2> /dev/null)
  19
  20 # Set environment variables, eg EMAIL, LANG
  21 eval "$(cat 2> /dev/null /etc/default/locale /etc/locale.conf ~/.config/environment.d/*.conf | awk -F= '/^[^# ]/ {print $0 ";export " $1}')"
  22
  23 # Pick up SSH agent socket
  24 if [ -z "$SSH_AUTH_SOCK" ]; then
  25     if [ -r ~/.ssh-agent.env ]; then
  26         source ~/.ssh-agent.env
  27     else
  28         SSH_AUTH_SOCK="/run/user/$(id -u)/keyring/ssh"
  29         export SSH_AUTH_SOCK
  30     fi
  31 fi
  32
  33
  34 ###########################
  35 # Interactive shells only #
  36 ###########################
  37
  38 if [ -z "${PS1}" ]; then
  39     return
  40 fi
  41
  42
  43 ################
  44 # Source files #
  45 ################
  46
  47 # Debian/Ubuntu don't source this from /etc/bash.bashrc
  48 [ -z "$BASH_COMPLETION_VERSINFO" ] && [ -r /usr/share/bash-completion/bash_completion ] && source /usr/share/bash-completion/bash_completion
  49
  50 # This isn't sourced for interactive shells on Debian/Ubuntu/Arch
  51 # https://bugzilla.gnome.org/show_bug.cgi?id=697475
  52 [ -r /etc/profile.d/vte.sh ] && source /etc/profile.d/vte.sh
  53
  54
  55 ################
  56 # bash options #
  57 ################
  58
  59 # Bash should check the terminal size after every command terminates
  60 shopt -s checkwinsize
  61
  62 # Don't attempt to tab-complete an empty line
  63 shopt -s no_empty_cmd_completion
  64
  65 # Prevent overwriting existing files on stdout redirection
  66 set -o noclobber
  67
  68 # Better history
  69 shopt -s histappend
  70 shopt -s cmdhist
  71 export HISTCONTROL='erasedups:ignoredups:ignorespace'
  72 export HISTSIZE='100000'
  73 export HISTTIMEFORMAT='%F %T '
  74
  75
  76 ###############
  77 # Pager setup #
  78 ###############
  79
  80 export PAGER='less'
  81 export LESS='RS'
  82
  83
  84 ##################
  85 # Terminal setup #
  86 ##################
  87
  88 # Disable CTRL-s / CTRL-q
  89 stty -ixon
  90
  91 # Use dark background colors in apps like vim
  92 export COLORFGBG='15;0'
  93
  94 #############
  95 # Fancy PS1 #
  96 #############
  97
  98 # Revision control status for git, hg, svn
  99
 100 function find_up_exists {
 101     local d="$PWD"
 102     while [ -n "$d" ]; do
 103         if [ -e "$d/$1" ]; then
 104             return 0
 105         fi
 106         d="${d%/*}"
 107     done
 108     return 1
 109 }
 110
 111 for p in /usr/lib/git-core/git-sh-prompt \
 112          /usr/share/git/completion/git-prompt.sh \
 113          /usr/share/git-core/contrib/completion/git-prompt.sh \
 114          /usr/local/share/git-core/contrib/completion/git-prompt.sh
 115 do
 116     [ -r "$p" ] && source "$p" && break
 117 done
 118
 119 function my_git_ps1 {
 120     find_up_exists .git || return
 121     GIT_PS1_SHOWDIRTYSTATE=1 \
 122     GIT_PS1_SHOWUNTRACKEDFILES=1 \
 123     __git_ps1 ' (%s)' 2> /dev/null
 124 }
 125
 126 function my_hg_ps1 {
 127     find_up_exists .hg || return
 128     local status
 129     status="$(hg status | cut -c1 | sort -u | tr -d ' \n')"
 130     echo -n " ($status)"
 131 }
 132
 133 function my_svn_ps1 {
 134     find_up_exists .svn || return
 135     local status
 136     status="$(svn status --ignore-externals 2> /dev/null | cut -c1 | sort -u | tr -d ' \n')"
 137     [ -n "$status" ] && echo -n " ($status)"
 138 }
 139
 140 # Two line prompt
 141 PS1=''
 142 PS1="$PS1"'\[\e[01;31m\]\u@\h\[\e[00m\]:\[\e[01;34m\]\w\[\e[00m\]'
 143 PS1="$PS1"'\[\e[01;36m\]$(my_git_ps1 ; my_hg_ps1 ; my_svn_ps1)\[\e[00m\]'
 144 PS1="$PS1"'\n\$ '
 145
 146
 147 #################################
 148 # Display return codes on error #
 149 #################################
 150
 151 function print_exit_code {
 152     local exit_code="$?"
 153     if [ -z "${BASH_SOURCE[1]}" ]; then
 154         printf '\e[01;33mexit code: %s\e[00m\n' \
 155             "$exit_code"
 156     fi
 157 }
 158 trap print_exit_code ERR
 159
 160
 161
 162 ####################
 163 # Function aliases #
 164 ####################
 165
 166 # This prevents long/ugly command lines from showing up in xterm titles
 167 function aliasf {
 168     eval "function $1 { $2 \$@; }"
 169 }
 170
 171
 172 ##########################
 173 # ls aliases and colours #
 174 ##########################
 175
 176 if command -v dircolors &> /dev/null; then
 177     # GNU ls colours
 178     eval "$(dircolors)"
 179     LS_COLORS+=':ow=30;42'
 180 else
 181     # BSD ls colours
 182     export LSCOLORS="ExFxCxDxBxEGEDABAGACAD"
 183 fi
 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 ##############
 201 # ps aliases #
 202 ##############
 203
 204 alias _psresources='ps -wAo pid,user,%cpu,%mem,stat,start,time,args'
 205 if [ "$(uname)" = "Linux" ]; then
 206     aliasf pscpu '_psresources --sort -%cpu|less -S'
 207     aliasf psmem '_psresources --sort -%mem|less -S'
 208     aliasf pstree 'ps --forest -weo pid,user:16,args --sort start_time|less -S'
 209     aliasf pstime 'ps -wAo pid,user,lstart,args --sort start_time|less -S'
 210 else
 211     aliasf pscpu '_psresources -r|less -S'
 212     aliasf psmem '_psresources -m|less -S'
 213     aliasf pstime 'ps -wAo pid,user,lstart,args|less -S'
 214 fi
 215
 216 #################
 217 # Other aliases #
 218 #################
 219
 220 alias f='find . -iname'
 221 if echo x | grep -q --color=auto x &> /dev/null; then
 222     alias grep='grep --color=auto'
 223 fi
 224 alias rg='rg -p'
 225 alias bc='bc -ql'
 226 alias watch='watch -n1'
 227 alias sudo='sudo ' # ability to use aliases with sudo
 228 aliasf sudosu 'sudo su -l -s /bin/bash'
 229 aliasf python 'PYTHONSTARTUP=~/.pythonrc.py python3'
 230 aliasf webshare 'python3 -mhttp.server'
 231
 232 if ! command -v pbcopy &> /dev/null; then
 233     alias pbcopy='xsel --clipboard --input'
 234     alias pbcopym='xsel --input'
 235     alias pbpaste='xsel --clipboard --output'
 236     alias pbpastem='xsel --output'
 237 fi
 238
 239 # man with coloured headings and a terminal title
 240 function man {
 241     env \
 242         LESS_TERMCAP_md=$'\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 without verifying host key
 263 function ssh_unsafe {
 264     ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null "$@"
 265 }
 266
 267
 268 ##################
 269 # Editor aliases #
 270 ##################
 271
 272 if emacsclient --version &> /dev/null; then
 273     export ALTERNATE_EDITOR='vim'
 274     export EDITOR='emacsclient --tty'
 275
 276     if [[ "$TERM" == screen* ]]; then
 277         aliasf edit 'emacsclient --tty'
 278     else
 279         aliasf edit 'emacsclient --create-frame --no-wait'
 280     fi
 281 else
 282     export EDITOR='vim'
 283     aliasf edit 'vim'
 284 fi
 285
 286
 287 #########################
 288 # Optional local config #
 289 #########################
 290
 291 [ -r ~/.bashrc_local ] && source ~/.bashrc_local
 292
 293
 294 ########################
 295 # Terminal integration #
 296 ########################
 297
 298 # When at a prompt display `workingdir (hostname)`
 299 function print_title_prompt {
 300     printf '\e]0;bash:%s (%s)\a' \
 301         "${PWD/$HOME/\~}" \
 302         "$(hostname -s)"
 303
 304     if [[ "$TERM" == screen* ]]; then
 305         printf '\ekbash\e\\'
 306     fi
 307 }
 308
 309 # Preserve working directory when opening new terminals
 310 # This depends on /etc/profile/vte.sh
 311 function record_terminal_cwd {
 312     [ "$(type -t __vte_osc7)" = "function" ] && __vte_osc7 || true
 313 }
 314
 315 function prompt_command {
 316     print_title_prompt
 317     record_terminal_cwd
 318 }
 319 PROMPT_COMMAND=prompt_command
 320
 321 # Display the command about to be executed. This must go at the end of the
 322 # bashrc to avoid running the trap on commands in the bashrc
 323 function print_title_exec {
 324     [ "$BASH_COMMAND" = "$PROMPT_COMMAND" ] && return
 325
 326     printf '\e]0;%s (%s)\a' \
 327         "$(tr -cd '[:graph:] ' <<< "$BASH_COMMAND")" \
 328         "$(hostname -s)"
 329
 330     if [[ "$TERM" == screen* ]]; then
 331         printf '\ek%s\e\\' \
 332             "$(sed -n -e 's/sudo //' -e 's/ .*//' -e 1p <<< "$BASH_COMMAND")"
 333     fi
 334 }
 335 trap print_title_exec DEBUG
 336
 337
 338 ###########
 339 # The end #
 340 ###########