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}:$PATH"
  18 done < <(find -L ~/bin -depth -maxdepth 1 -type d 2> /dev/null)
  19
  20 # Set environment variables, eg EMAIL, LANG
  21 eval "$(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/$(id -u)/keyring/ssh"
  29         export SSH_AUTH_SOCK
  30     fi
  31 fi
  32
  33 # Look for XDG_RUNTIME_DIR
  34 if [ -z "$XDG_RUNTIME_DIR" ] && [ -d "/run/user/$(id -u)" ]; then
  35     XDG_RUNTIME_DIR="/run/user/$(id -u)"
  36     export XDG_RUNTIME_DIR
  37 fi
  38
  39 # Look for DBUS
  40 if [ -z "$DBUS_SESSION_BUS_ADDRESS" ] && [ -S "/run/user/$(id -u)/bus" ]; then
  41     DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/$(id -u)/bus"
  42     export DBUS_SESSION_BUS_ADDRESS
  43 fi
  44
  45
  46 ###########################
  47 # Interactive shells only #
  48 ###########################
  49
  50 if [ -z "${PS1}" ]; then
  51     return
  52 fi
  53
  54
  55 ################
  56 # Source files #
  57 ################
  58
  59 # Debian/Ubuntu don't source this from /etc/bash.bashrc
  60 [ -z "$BASH_COMPLETION_VERSINFO" ] && [ -r /usr/share/bash-completion/bash_completion ] && source /usr/share/bash-completion/bash_completion
  61
  62 # This isn't sourced for interactive shells on Debian/Ubuntu/Arch
  63 # https://bugzilla.gnome.org/show_bug.cgi?id=697475
  64 [ -r /etc/profile.d/vte.sh ] && source /etc/profile.d/vte.sh
  65
  66
  67 ################
  68 # bash options #
  69 ################
  70
  71 # Bash should check the terminal size after every command terminates
  72 shopt -s checkwinsize
  73
  74 # Don't attempt to tab-complete an empty line
  75 shopt -s no_empty_cmd_completion
  76
  77 # Prevent overwriting existing files on stdout redirection
  78 set -o noclobber
  79
  80 # Better history
  81 shopt -s histappend
  82 shopt -s cmdhist
  83 export HISTCONTROL='erasedups:ignoredups:ignorespace'
  84 export HISTSIZE='100000'
  85 export HISTTIMEFORMAT='%F %T '
  86
  87
  88 ###############
  89 # Pager setup #
  90 ###############
  91
  92 export PAGER='less'
  93 export LESS='RS'
  94
  95
  96 ##################
  97 # Terminal setup #
  98 ##################
  99
 100 # Disable CTRL-s / CTRL-q
 101 stty -ixon
 102
 103 # Use dark background colors in apps like vim
 104 export COLORFGBG='15;0'
 105
 106 #############
 107 # Fancy PS1 #
 108 #############
 109
 110 # Revision control status for git, hg, svn
 111
 112 function find_up_exists {
 113     local d="$PWD"
 114     while [ -n "$d" ]; do
 115         if [ -e "$d/$1" ]; then
 116             return 0
 117         fi
 118         d="${d%/*}"
 119     done
 120     return 1
 121 }
 122
 123 for p in /usr/lib/git-core/git-sh-prompt \
 124          /usr/share/git/completion/git-prompt.sh \
 125          /usr/share/git-core/contrib/completion/git-prompt.sh \
 126          /usr/local/share/git-core/contrib/completion/git-prompt.sh
 127 do
 128     [ -r "$p" ] && source "$p" && break
 129 done
 130
 131 function my_git_ps1 {
 132     find_up_exists .git || return
 133     GIT_PS1_SHOWDIRTYSTATE=1 \
 134     GIT_PS1_SHOWUNTRACKEDFILES=1 \
 135     __git_ps1 ' (%s)' 2> /dev/null
 136 }
 137
 138 function my_hg_ps1 {
 139     find_up_exists .hg || return
 140     local status
 141     status="$(hg status | cut -c1 | sort -u | tr -d ' \n')"
 142     echo -n " ($status)"
 143 }
 144
 145 function my_svn_ps1 {
 146     find_up_exists .svn || return
 147     local status
 148     status="$(svn status --ignore-externals 2> /dev/null | cut -c1 | sort -u | tr -d ' \n')"
 149     [ -n "$status" ] && echo -n " ($status)"
 150 }
 151
 152 # Two line prompt
 153 PS1=''
 154 PS1="$PS1"'\[\e[01;31m\]\u@\h\[\e[00m\]:\[\e[01;34m\]\w\[\e[00m\]'
 155 PS1="$PS1"'\[\e[01;36m\]$(my_git_ps1 ; my_hg_ps1 ; my_svn_ps1)\[\e[00m\]'
 156 PS1="$PS1"'\n\$ '
 157
 158
 159 #################################
 160 # Display return codes on error #
 161 #################################
 162
 163 function print_exit_code {
 164     local exit_code="$?"
 165     if [ -z "${BASH_SOURCE[1]}" ]; then
 166         printf '\e[01;33mexit code: %s\e[00m\n' \
 167             "$exit_code"
 168     fi
 169 }
 170 trap print_exit_code ERR
 171
 172
 173
 174 ####################
 175 # Function aliases #
 176 ####################
 177
 178 # This prevents long/ugly command lines from showing up in xterm titles
 179 function aliasf {
 180     eval "function $1 { $2 \"\$@\"; }"
 181 }
 182
 183
 184 ##########################
 185 # ls aliases and colours #
 186 ##########################
 187
 188 if command -v dircolors &> /dev/null; then
 189     # GNU ls colours
 190     eval "$(dircolors)"
 191     LS_COLORS+=':ow=30;42'
 192 else
 193     # BSD ls colours
 194     export LSCOLORS="ExFxCxDxBxEGEDABAGACAD"
 195 fi
 196
 197 # Lets find the ls
 198 if ls --color=auto -v &> /dev/null; then
 199     alias ls='ls --color=auto -v'
 200 elif gls --color=auto -v &> /dev/null; then
 201     alias ls='gls --color=auto -v'
 202 elif ls -G &> /dev/null; then
 203     alias ls='ls -G'
 204 else
 205     alias ls='ls -F'
 206 fi
 207 alias ll='ls -hlF'
 208 alias la='ls -ha'
 209 alias  l='ls -halF'
 210
 211
 212 ##############
 213 # ps aliases #
 214 ##############
 215
 216 alias _psresources='ps -wAo pid,user,%cpu,%mem,stat,start,time,args'
 217 if [ "$(uname)" = "Linux" ]; then
 218     aliasf pscpu '_psresources --sort -%cpu|less -S'
 219     aliasf psmem '_psresources --sort -%mem|less -S'
 220     aliasf pstree 'ps --forest -weo pid,user:16,args --sort start_time|less -S'
 221     aliasf pstime 'ps -wAo pid,user,lstart,args --sort start_time|less -S'
 222 else
 223     aliasf pscpu '_psresources -r|less -S'
 224     aliasf psmem '_psresources -m|less -S'
 225     aliasf pstime 'ps -wAo pid,user,lstart,args|less -S'
 226 fi
 227
 228 #################
 229 # Other aliases #
 230 #################
 231
 232 alias f='find . -iname'
 233 if echo x | grep -q --color=auto x &> /dev/null; then
 234     alias grep='grep --color=auto'
 235 fi
 236 alias rg='rg -p'
 237 alias bc='bc -ql'
 238 alias watch='watch -n1'
 239 alias sudo='sudo ' # ability to use aliases with sudo
 240 aliasf sudosu 'sudo su -l -s /bin/bash'
 241 aliasf python 'PYTHONSTARTUP=~/.pythonrc.py python3'
 242 aliasf webshare 'python3 -mhttp.server'
 243
 244 export EDITOR='vim'
 245 aliasf edit "$EDITOR"
 246
 247 if ! command -v pbcopy &> /dev/null; then
 248     alias pbcopy='xsel --clipboard --input'
 249     alias pbcopym='xsel --input'
 250     alias pbpaste='xsel --clipboard --output'
 251     alias pbpastem='xsel --output'
 252 fi
 253
 254 # man with coloured headings and a terminal title
 255 function man {
 256     env \
 257         LESS_TERMCAP_md=$'\E[01;38;5;74m' \
 258         LESS_TERMCAP_me=$'\E[0m' \
 259         LESS_TERMCAP_us=$'\E[04;38;5;146m' \
 260         LESS_TERMCAP_ue=$'\E[0m' \
 261         LC_CTYPE=C \
 262     man "$@"
 263 }
 264
 265 # Creates the directory if it doesn't exist, and changes into it
 266 function mcd {
 267     # shellcheck disable=SC2164
 268     mkdir -p "$1" && cd "$1"
 269 }
 270
 271 # Sets the nice and ionice priorities for the current shell to the lowest values
 272 function slowshell {
 273     ionice -c 3 -p $$
 274     renice -n 19 -p $$
 275 }
 276
 277 # SSH without verifying host key
 278 function ssh_unsafe {
 279     ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null "$@"
 280 }
 281
 282
 283 #########################
 284 # Optional local config #
 285 #########################
 286
 287 [ -r ~/.bashrc_local ] && source ~/.bashrc_local
 288
 289
 290 ########################
 291 # Terminal integration #
 292 ########################
 293
 294 # When at a prompt display `workingdir (hostname)`
 295 function print_title_prompt {
 296     printf '\e]0;bash:%s (%s)\a' \
 297         "${PWD/$HOME/\~}" \
 298         "$(cat /etc/hostname)"
 299
 300     if [[ "$TERM" == screen* ]]; then
 301         printf '\ekbash\e\\'
 302     fi
 303 }
 304
 305 # Preserve working directory when opening new terminals
 306 # This depends on /etc/profile/vte.sh
 307 function record_terminal_cwd {
 308     [ "$(type -t __vte_osc7)" = "function" ] && __vte_osc7 || true
 309 }
 310
 311 function prompt_command {
 312     print_title_prompt
 313     record_terminal_cwd
 314 }
 315 PROMPT_COMMAND=prompt_command
 316
 317 # Display the command about to be executed. This must go at the end of the
 318 # bashrc to avoid running the trap on commands in the bashrc
 319 function print_title_exec {
 320     [ "$BASH_COMMAND" = "$PROMPT_COMMAND" ] && return
 321
 322     printf '\e]0;%s (%s)\a' \
 323         "$(tr -cd '[:graph:] ' <<< "$BASH_COMMAND")" \
 324         "$(cat /etc/hostname)"
 325
 326     if [[ "$TERM" == screen* ]]; then
 327         printf '\ek%s\e\\' \
 328             "$(sed -n -e 's/sudo //' -e 's/ .*//' -e 1p <<< "$BASH_COMMAND")"
 329     fi
 330 }
 331 trap print_title_exec DEBUG
 332
 333
 334 ###########
 335 # The end #
 336 ###########