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 # hostname:workingdir
  74 PROMPT_COMMAND='echo -ne "\\033]0;$(hostname|cut -d. -f1):${PWD/$HOME/\~}\\007"'
  75
  76 # Use dark background colors in apps like vim
  77 export COLORFGBG='15;0'
  78
  79 #############
  80 # Fancy PS1 #
  81 #############
  82
  83 # Revision control status for git, hg, svn
  84
  85 function find_up_exists {
  86     local d="$PWD"
  87     while [ -n "$d" ]; do
  88         if [ -e "$d/$1" ]; then
  89             return 0
  90         fi
  91         d="${d%/*}"
  92     done
  93     return 1
  94 }
  95
  96 [ -r /usr/lib/git-core/git-sh-prompt ] && source /usr/lib/git-core/git-sh-prompt
  97 [ -r /usr/share/git/completion/git-prompt.sh ] && source /usr/share/git/completion/git-prompt.sh
  98 function my_git_ps1 {
  99     find_up_exists .git || return
 100     GIT_PS1_SHOWDIRTYSTATE=1 \
 101     GIT_PS1_SHOWUNTRACKEDFILES=1 \
 102     __git_ps1 ' (%s)' 2> /dev/null
 103 }
 104
 105 function my_hg_ps1 {
 106     find_up_exists .hg || return
 107     local status
 108     status="$(hg status | cut -c1 | sort -u | tr -d ' \n')"
 109     echo -n " ($status)"
 110 }
 111
 112 function my_svn_ps1 {
 113     find_up_exists .svn || return
 114     local status
 115     status="$(svn status --ignore-externals 2> /dev/null | cut -c1 | sort -u | tr -d ' \n')"
 116     [ -n "$status" ] && echo -n " ($s)"
 117 }
 118
 119 # Two line prompt
 120 PS1=''
 121 PS1="$PS1"'\[\033[01;31m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]'
 122 PS1="$PS1"'\[\033[01;36m\]$(my_git_ps1 ; my_hg_ps1 ; my_svn_ps1)\[\033[00m\]'
 123
 124 if ! [[ "$TERM" =~ ^screen ]]; then
 125     PS1="$PS1"'\n\$ '
 126 else
 127     # matches with shelltitle in .screenrc
 128     PS1="$PS1"'\n\[\033k\033\\\]\$> '
 129 fi
 130
 131
 132 #################################
 133 # Display return codes on error #
 134 #################################
 135
 136 function print_exit_code {
 137     _exit_msg="\\033[01;33mexit code: $?\\033[00m"
 138     if [ -z "${BASH_SOURCE[1]}" ]; then
 139         echo -e "$_exit_msg"
 140     fi
 141     unset _exit_msg
 142 }
 143 trap print_exit_code ERR
 144
 145
 146 ###############
 147 # Pager setup #
 148 ###############
 149
 150 export PAGER='less'
 151 export LESS='RS'
 152
 153
 154 ################
 155 # Editor setup #
 156 ################
 157
 158 if emacsclient --version &> /dev/null; then
 159     export ALTERNATE_EDITOR='vim'
 160     export EDITOR='emacsclient --tty'
 161
 162     if [[ "$TERM" == screen* ]]; then
 163         alias edit='emacsclient --tty'
 164     else
 165         alias edit='emacsclient --create-frame --no-wait'
 166     fi
 167 else
 168     export EDITOR='vim'
 169     alias edit='vim'
 170 fi
 171
 172
 173 ##########################
 174 # ls aliases and colours #
 175 ##########################
 176
 177 # GNU ls colours
 178 eval "$(TERM=xterm dircolors 2> /dev/null)"
 179
 180 # BSD ls colours
 181 export LSCOLORS="ExFxCxDxBxEGEDABAGACAD"
 182
 183 # Lets find the ls
 184 if ls --color=auto -v &> /dev/null; then
 185     alias ls='ls --color=auto -v'
 186 elif gls --color=auto -v &> /dev/null; then
 187     alias ls='gls --color=auto -v'
 188 elif ls -G &> /dev/null; then
 189     alias ls='ls -G'
 190 else
 191     alias ls='ls -F'
 192 fi
 193 alias ll='ls -hlF'
 194 alias la='ls -ha'
 195 alias  l='ls -halF'
 196
 197 ##############
 198 # ps aliases #
 199 ##############
 200
 201 alias _psresources='ps -wAo pid,user,%cpu,%mem,stat,start,time,args'
 202 if [ "$(uname)" = "Linux" ]; then
 203     alias pscpu='_psresources --sort -%cpu|less -S'
 204     alias psmem='_psresources --sort -%mem|less -S'
 205     alias pstree='ps --forest -weo pid,user:16,args --sort start_time|less -S'
 206     alias pstime='ps -wAo pid,user,lstart,args --sort start_time|less -S'
 207 else
 208     alias pscpu='_psresources -r|less -S'
 209     alias psmem='_psresources -m|less -S'
 210     alias pstime='ps -wAo pid,user,lstart,args|less -S'
 211 fi
 212
 213 #################
 214 # Other aliases #
 215 #################
 216
 217 alias f='find . -iname'
 218 if echo x | grep -q --color=auto x &> /dev/null; then
 219     alias grep='grep --color=auto'
 220 fi
 221 alias rg='rg -p'
 222 alias scp='scp -o ControlPath=none'
 223 alias bc='bc -ql'
 224 alias watch='watch -n1'
 225 alias sudo='sudo ' # ability to use aliases with sudo
 226 alias sudosu='sudo su -l -s /bin/bash'
 227 alias python='PYTHONSTARTUP=~/.pythonrc.py python3'
 228 alias webshare='python3 -mhttp.server'
 229
 230 if ! command -v pbcopy &> /dev/null; then
 231     alias pbcopy='xsel --clipboard --input'
 232     alias pbcopym='xsel --input'
 233     alias pbpaste='xsel --clipboard --output'
 234     alias pbpastem='xsel --output'
 235 fi
 236
 237 # man with coloured headings and a terminal title
 238 function man {
 239     echo -ne "\\033]0;man $*\\007"
 240
 241     env \
 242         LESS_TERMCAP_md=$'\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 # The end #
 278 ###########
 279
 280 [ -r ~/.bashrc_local ] && source ~/.bashrc_local