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

   1 # shellcheck disable=SC1090 # -- 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
  65 ##################
  66 # Terminal setup #
  67 ##################
  68
  69 # Disable CTRL-s / CTRL-q
  70 stty -ixon
  71
  72 # hostname:workingdir
  73 PROMPT_COMMAND='echo -ne "\\033]0;$(hostname|cut -d. -f1):${PWD/$HOME/~}\\007"'
  74
  75
  76 #############
  77 # Fancy PS1 #
  78 #############
  79
  80 # Revision control status for git, hg, svn
  81
  82 function find_up_exists {
  83     local d="$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 [ -r /usr/share/git/completion/git-prompt.sh ] && source /usr/share/git/completion/git-prompt.sh
  94 function my_git_ps1 {
  95     find_up_exists .git || return
  96     GIT_PS1_SHOWDIRTYSTATE=1 \
  97     GIT_PS1_SHOWUNTRACKEDFILES=1 \
  98     __git_ps1 ' (%s)' 2> /dev/null
  99 }
 100
 101 function my_hg_ps1 {
 102     find_up_exists .hg || return
 103     local status
 104     status="$(hg status | cut -c1 | sort -u | tr -d ' \n')"
 105     echo -n " ($status)"
 106 }
 107
 108 function my_svn_ps1 {
 109     find_up_exists .svn || return
 110     local status
 111     status="$(svn status --ignore-externals 2> /dev/null | cut -c1 | sort -u | tr -d ' \n')"
 112     [ -n "$status" ] && echo -n " ($s)"
 113 }
 114
 115 # Two line prompt
 116 PS1=''
 117 PS1="$PS1"'\[\033[01;31m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]'
 118 PS1="$PS1"'\[\033[01;36m\]$(my_git_ps1 ; my_hg_ps1 ; my_svn_ps1)\[\033[00m\]'
 119
 120 if ! [[ "$TERM" =~ ^screen ]]; then
 121     PS1="$PS1"'\n\$ '
 122 else
 123     # matches with shelltitle in .screenrc
 124     PS1="$PS1"'\n\[\033k\033\\\]\$> '
 125 fi
 126
 127
 128 #################################
 129 # Display return codes on error #
 130 #################################
 131
 132 function print_exit_code {
 133     _exit_msg="\\033[01;33mexit code: $?\\033[00m"
 134     if [ -z "${BASH_SOURCE[1]}" ]; then
 135         echo -e "$_exit_msg"
 136     fi
 137     unset _exit_msg
 138 }
 139 trap print_exit_code ERR
 140
 141
 142 ###############
 143 # Pager setup #
 144 ###############
 145
 146 export PAGER='less'
 147 export LESS='RS'
 148
 149
 150 ################
 151 # Editor setup #
 152 ################
 153
 154 if emacsclient --version &> /dev/null; then
 155     export ALTERNATE_EDITOR='vim'
 156     export EDITOR='emacsclient --tty'
 157
 158     if [[ "$TERM" == screen* ]]; then
 159         alias edit='emacsclient --tty'
 160     else
 161         alias edit='emacsclient --create-frame --no-wait'
 162     fi
 163 else
 164     export EDITOR='vim'
 165     alias edit='vim'
 166 fi
 167
 168
 169 ##########################
 170 # ls aliases and colours #
 171 ##########################
 172
 173 # GNU ls colours
 174 eval "$(TERM=xterm dircolors 2> /dev/null)"
 175
 176 # BSD ls colours
 177 export LSCOLORS="ExFxCxDxBxEGEDABAGACAD"
 178
 179 # Lets find the ls
 180 if ls --color=auto -v &> /dev/null; then
 181     alias ls='ls --color=auto -v'
 182 elif gls --color=auto -v &> /dev/null; then
 183     alias ls='gls --color=auto -v'
 184 elif ls -G &> /dev/null; then
 185     alias ls='ls -G'
 186 else
 187     alias ls='ls -F'
 188 fi
 189 alias ll='ls -hlF'
 190 alias la='ls -ha'
 191 alias  l='ls -halF'
 192
 193 ##############
 194 # ps aliases #
 195 ##############
 196
 197 alias _psresources='ps -wAo pid,user,%cpu,%mem,stat,start,time,args'
 198 if [ "$(uname)" = "Linux" ]; then
 199     alias pscpu='_psresources --sort -%cpu|less -S'
 200     alias psmem='_psresources --sort -%mem|less -S'
 201     alias pstree='ps --forest -weo pid,user:16,args --sort start_time|less -S'
 202     alias pstime='ps -wAo pid,user,lstart,args --sort start_time|less -S'
 203 else
 204     alias pscpu='_psresources -r|less -S'
 205     alias psmem='_psresources -m|less -S'
 206     alias pstime='ps -wAo pid,user,lstart,args|less -S'
 207 fi
 208
 209 #################
 210 # Other aliases #
 211 #################
 212
 213 alias f='find . -iname'
 214 if echo x | grep -q --color=auto x &> /dev/null; then
 215     alias grep='grep --color=auto'
 216 fi
 217 alias rg='rg -p'
 218 alias scp='scp -o ControlPath=none'
 219 alias bc='bc -ql'
 220 alias watch='watch -n1'
 221 alias sudo='sudo ' # ability to use aliases with sudo
 222 alias sudosu='sudo su -l -s /bin/bash'
 223 alias python='PYTHONSTARTUP=~/.pythonrc.py python3'
 224 alias webshare='python3 -mhttp.server'
 225
 226 if ! command -v pbcopy &> /dev/null; then
 227     alias pbcopy='xsel --clipboard --input'
 228     alias pbcopym='xsel --input'
 229     alias pbpaste='xsel --clipboard --output'
 230     alias pbpastem='xsel --output'
 231 fi
 232
 233 # man with coloured headings and a terminal title
 234 function man {
 235     echo -ne "\\033]0;man $*\\007"
 236
 237     env \
 238         LESS_TERMCAP_md=$'\E[01;38;5;74m' \
 239         LESS_TERMCAP_me=$'\E[0m' \
 240         LESS_TERMCAP_us=$'\E[04;38;5;146m' \
 241         LESS_TERMCAP_ue=$'\E[0m' \
 242         LC_CTYPE=C \
 243     man "$@"
 244 }
 245
 246 # Creates the directory if it doesn't exist, and changes into it
 247 function mcd {
 248     # shellcheck disable=SC2164
 249     mkdir -p "$1" && cd "$1"
 250 }
 251
 252 # Sets the nice and ionice priorities for the current shell to the lowest values
 253 function slowshell {
 254     ionice -c 3 -p $$
 255     renice -n 19 -p $$
 256 }
 257
 258 # SSH to an unknown host and print the new known_hosts entry
 259 function ssh_new {
 260     local new_known_hosts_file
 261     new_known_hosts_file="$(mktemp)"
 262     ssh -o UserKnownHostsFile="$new_known_hosts_file" "$@" echo 'Connection ok'
 263     cat "$new_known_hosts_file"
 264     rm -f "$new_known_hosts_file"
 265 }
 266
 267 # SSH without verifying host key
 268 function ssh_unsafe {
 269     ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null "$@"
 270 }
 271
 272 ###########
 273 # The end #
 274 ###########
 275
 276 [ -r ~/.bashrc_local ] && source ~/.bashrc_local