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}:$PATH"
  18 done < <(find -L ~/bin -maxdepth 1 -type d 2> /dev/null)
  19
  20 # Set EMAIL from the freedesktop environment.d
  21 if ls ~/.config/environment.d/*.conf &> /dev/null; then
  22     eval "$(awk -F= '{print $0 ";export " $1}' ~/.config/environment.d/*.conf)"
  23 fi
  24
  25 # Pick up SSH agent socket
  26 if [ -z "$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 # Source files #
  47 ################
  48
  49 # Debian/Ubuntu don't source this from /etc/bash.bashrc
  50 [ -z "$BASH_COMPLETION_VERSINFO" ] && [ -r /usr/share/bash-completion/bash_completion ] && source /usr/share/bash-completion/bash_completion
  51
  52 # This isn't sourced for interactive shells on Debian/Ubuntu/Arch
  53 # https://bugzilla.gnome.org/show_bug.cgi?id=697475
  54 [ -r /etc/profile.d/vte.sh ] && source /etc/profile.d/vte.sh
  55
  56
  57 ################
  58 # bash options #
  59 ################
  60
  61 # Bash should check the terminal size after every command terminates
  62 shopt -s checkwinsize
  63
  64 # Don't attempt to tab-complete an empty line
  65 shopt -s no_empty_cmd_completion
  66
  67 # Prevent overwriting existing files on stdout redirection
  68 set -o noclobber
  69
  70 # Better history
  71 shopt -s histappend
  72 shopt -s cmdhist
  73 export HISTCONTROL='erasedups:ignoredups:ignorespace'
  74 export HISTSIZE='100000'
  75 export HISTTIMEFORMAT='%F %T '
  76
  77
  78 ###############
  79 # Pager setup #
  80 ###############
  81
  82 export PAGER='less'
  83 export LESS='RS'
  84
  85
  86 ##################
  87 # Terminal setup #
  88 ##################
  89
  90 # Disable CTRL-s / CTRL-q
  91 stty -ixon
  92
  93 # Use dark background colors in apps like vim
  94 export COLORFGBG='15;0'
  95
  96 #############
  97 # Fancy PS1 #
  98 #############
  99
 100 # Revision control status for git, hg, svn
 101
 102 function find_up_exists {
 103     local d="$PWD"
 104     while [ -n "$d" ]; do
 105         if [ -e "$d/$1" ]; then
 106             return 0
 107         fi
 108         d="${d%/*}"
 109     done
 110     return 1
 111 }
 112
 113 for p in /usr/lib/git-core/git-sh-prompt \
 114          /usr/share/git/completion/git-prompt.sh \
 115          /usr/share/git-core/contrib/completion/git-prompt.sh \
 116          /usr/local/share/git-core/contrib/completion/git-prompt.sh
 117 do
 118     [ -r "$p" ] && source "$p" && break
 119 done
 120
 121 function my_git_ps1 {
 122     find_up_exists .git || return
 123     GIT_PS1_SHOWDIRTYSTATE=1 \
 124     GIT_PS1_SHOWUNTRACKEDFILES=1 \
 125     __git_ps1 ' (%s)' 2> /dev/null
 126 }
 127
 128 function my_hg_ps1 {
 129     find_up_exists .hg || return
 130     local status
 131     status="$(hg status | cut -c1 | sort -u | tr -d ' \n')"
 132     echo -n " ($status)"
 133 }
 134
 135 function my_svn_ps1 {
 136     find_up_exists .svn || return
 137     local status
 138     status="$(svn status --ignore-externals 2> /dev/null | cut -c1 | sort -u | tr -d ' \n')"
 139     [ -n "$status" ] && echo -n " ($status)"
 140 }
 141
 142 # Two line prompt
 143 PS1=''
 144 PS1="$PS1"'\[\e[01;31m\]\u@\h\[\e[00m\]:\[\e[01;34m\]\w\[\e[00m\]'
 145 PS1="$PS1"'\[\e[01;36m\]$(my_git_ps1 ; my_hg_ps1 ; my_svn_ps1)\[\e[00m\]'
 146 PS1="$PS1"'\n\$ '
 147
 148
 149 #################################
 150 # Display return codes on error #
 151 #################################
 152
 153 function print_exit_code {
 154     local exit_code="$?"
 155     if [ -z "${BASH_SOURCE[1]}" ]; then
 156         printf '\e[01;33mexit code: %s\e[00m\n' \
 157             "$exit_code"
 158     fi
 159 }
 160 trap print_exit_code ERR
 161
 162
 163
 164 ####################
 165 # Function aliases #
 166 ####################
 167
 168 # This prevents long/ugly command lines from showing up in xterm titles
 169 function aliasf {
 170     eval "function $1 { $2 \$@; }"
 171 }
 172
 173
 174 ##########################
 175 # ls aliases and colours #
 176 ##########################
 177
 178 # GNU ls colours
 179 eval "$(TERM=xterm dircolors 2> /dev/null)"
 180
 181 # BSD ls colours
 182 export LSCOLORS="ExFxCxDxBxEGEDABAGACAD"
 183
 184 # Lets find the ls
 185 if ls --color=auto -v &> /dev/null; then
 186     alias ls='ls --color=auto -v'
 187 elif gls --color=auto -v &> /dev/null; then
 188     alias ls='gls --color=auto -v'
 189 elif ls -G &> /dev/null; then
 190     alias ls='ls -G'
 191 else
 192     alias ls='ls -F'
 193 fi
 194 alias ll='ls -hlF'
 195 alias la='ls -ha'
 196 alias  l='ls -halF'
 197
 198
 199 ##############
 200 # ps aliases #
 201 ##############
 202
 203 alias _psresources='ps -wAo pid,user,%cpu,%mem,stat,start,time,args'
 204 if [ "$(uname)" = "Linux" ]; then
 205     aliasf pscpu '_psresources --sort -%cpu|less -S'
 206     aliasf psmem '_psresources --sort -%mem|less -S'
 207     aliasf pstree 'ps --forest -weo pid,user:16,args --sort start_time|less -S'
 208     aliasf pstime 'ps -wAo pid,user,lstart,args --sort start_time|less -S'
 209 else
 210     aliasf pscpu '_psresources -r|less -S'
 211     aliasf psmem '_psresources -m|less -S'
 212     aliasf pstime 'ps -wAo pid,user,lstart,args|less -S'
 213 fi
 214
 215 #################
 216 # Other aliases #
 217 #################
 218
 219 alias f='find . -iname'
 220 if echo x | grep -q --color=auto x &> /dev/null; then
 221     alias grep='grep --color=auto'
 222 fi
 223 alias rg='rg -p'
 224 alias bc='bc -ql'
 225 alias watch='watch -n1'
 226 alias sudo='sudo ' # ability to use aliases with sudo
 227 aliasf sudosu 'sudo su -l -s /bin/bash'
 228 aliasf python 'PYTHONSTARTUP=~/.pythonrc.py python3'
 229 aliasf webshare 'python3 -mhttp.server'
 230
 231 if ! command -v pbcopy &> /dev/null; then
 232     alias pbcopy='xsel --clipboard --input'
 233     alias pbcopym='xsel --input'
 234     alias pbpaste='xsel --clipboard --output'
 235     alias pbpastem='xsel --output'
 236 fi
 237
 238 # man with coloured headings and a terminal title
 239 function man {
 240     env \
 241         LESS_TERMCAP_md=$'\E[01;38;5;74m' \
 242         LESS_TERMCAP_me=$'\E[0m' \
 243         LESS_TERMCAP_us=$'\E[04;38;5;146m' \
 244         LESS_TERMCAP_ue=$'\E[0m' \
 245         LC_CTYPE=C \
 246     man "$@"
 247 }
 248
 249 # Creates the directory if it doesn't exist, and changes into it
 250 function mcd {
 251     # shellcheck disable=SC2164
 252     mkdir -p "$1" && cd "$1"
 253 }
 254
 255 # Sets the nice and ionice priorities for the current shell to the lowest values
 256 function slowshell {
 257     ionice -c 3 -p $$
 258     renice -n 19 -p $$
 259 }
 260
 261 # SSH to an unknown host and print the new known_hosts entry
 262 function ssh_new {
 263     local new_known_hosts_file
 264     new_known_hosts_file="$(mktemp)"
 265     ssh -o UserKnownHostsFile="$new_known_hosts_file" "$@" echo 'Connection ok'
 266     cat "$new_known_hosts_file"
 267     rm -f "$new_known_hosts_file"
 268 }
 269
 270 # SSH without verifying host key
 271 function ssh_unsafe {
 272     ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null "$@"
 273 }
 274
 275
 276 ##################
 277 # Editor aliases #
 278 ##################
 279
 280 if emacsclient --version &> /dev/null; then
 281     export ALTERNATE_EDITOR='vim'
 282     export EDITOR='emacsclient --tty'
 283
 284     if [[ "$TERM" == screen* ]]; then
 285         aliasf edit 'emacsclient --tty'
 286     else
 287         aliasf edit 'emacsclient --create-frame --no-wait'
 288     fi
 289 else
 290     export EDITOR='vim'
 291     aliasf edit 'vim'
 292 fi
 293
 294
 295 #########################
 296 # Optional local config #
 297 #########################
 298
 299 [ -r ~/.bashrc_local ] && source ~/.bashrc_local
 300
 301
 302 ########################
 303 # Terminal integration #
 304 ########################
 305
 306 # When at a prompt display `workingdir (hostname)`
 307 function print_title_prompt {
 308     printf '\e]0;bash:%s (%s)\a' \
 309         "${PWD/$HOME/\~}" \
 310         "$(hostname -s)"
 311
 312     if [[ "$TERM" == screen* ]]; then
 313         printf '\ekbash\e\\'
 314     fi
 315 }
 316
 317 # Preserve working directory when opening new terminals
 318 # This depends on /etc/profile/vte.sh
 319 function record_terminal_cwd {
 320     [ "$(type -t __vte_osc7)" = "function" ] && __vte_osc7 || true
 321 }
 322
 323 function prompt_command {
 324     print_title_prompt
 325     record_terminal_cwd
 326 }
 327 PROMPT_COMMAND=prompt_command
 328
 329 # Display the command about to be executed. This must go at the end of the
 330 # bashrc to avoid running the trap on commands in the bashrc
 331 function print_title_exec {
 332     [ "$BASH_COMMAND" = "$PROMPT_COMMAND" ] && return
 333
 334     printf '\e]0;%s (%s)\a' \
 335         "$(tr -cd '[:graph:] ' <<< "$BASH_COMMAND")" \
 336         "$(hostname -s)"
 337
 338     if [[ "$TERM" == screen* ]]; then
 339         printf '\ek%s\e\\' \
 340             "$(sed -n -e 's/sudo //' -e 's/ .*//' -e 1p <<< "$BASH_COMMAND")"
 341     fi
 342 }
 343 trap print_title_exec DEBUG
 344
 345
 346 ###########
 347 # The end #
 348 ###########