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 for p in /usr/lib/git-core/git-sh-prompt \
  97          /usr/share/git/completion/git-prompt.sh \
  98          /usr/local/share/git-core/contrib/completion/git-prompt.sh
  99 do
 100     [ -r "$p" ] && source "$p" && break
 101 done
 102
 103 function my_git_ps1 {
 104     find_up_exists .git || return
 105     GIT_PS1_SHOWDIRTYSTATE=1 \
 106     GIT_PS1_SHOWUNTRACKEDFILES=1 \
 107     __git_ps1 ' (%s)' 2> /dev/null
 108 }
 109
 110 function my_hg_ps1 {
 111     find_up_exists .hg || return
 112     local status
 113     status="$(hg status | cut -c1 | sort -u | tr -d ' \n')"
 114     echo -n " ($status)"
 115 }
 116
 117 function my_svn_ps1 {
 118     find_up_exists .svn || return
 119     local status
 120     status="$(svn status --ignore-externals 2> /dev/null | cut -c1 | sort -u | tr -d ' \n')"
 121     [ -n "$status" ] && echo -n " ($s)"
 122 }
 123
 124 # Two line prompt
 125 PS1=''
 126 PS1="$PS1"'\[\033[01;31m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]'
 127 PS1="$PS1"'\[\033[01;36m\]$(my_git_ps1 ; my_hg_ps1 ; my_svn_ps1)\[\033[00m\]'
 128
 129 if ! [[ "$TERM" =~ ^screen ]]; then
 130     PS1="$PS1"'\n\$ '
 131 else
 132     # matches with shelltitle in .screenrc
 133     PS1="$PS1"'\n\[\033k\033\\\]\$> '
 134 fi
 135
 136
 137 #################################
 138 # Display return codes on error #
 139 #################################
 140
 141 function print_exit_code {
 142     _exit_msg="\\033[01;33mexit code: $?\\033[00m"
 143     if [ -z "${BASH_SOURCE[1]}" ]; then
 144         echo -e "$_exit_msg"
 145     fi
 146     unset _exit_msg
 147 }
 148 trap print_exit_code ERR
 149
 150
 151 ###############
 152 # Pager setup #
 153 ###############
 154
 155 export PAGER='less'
 156 export LESS='RS'
 157
 158
 159 ################
 160 # Editor setup #
 161 ################
 162
 163 if emacsclient --version &> /dev/null; then
 164     export ALTERNATE_EDITOR='vim'
 165     export EDITOR='emacsclient --tty'
 166
 167     if [[ "$TERM" == screen* ]]; then
 168         alias edit='emacsclient --tty'
 169     else
 170         alias edit='emacsclient --create-frame --no-wait'
 171     fi
 172 else
 173     export EDITOR='vim'
 174     alias edit='vim'
 175 fi
 176
 177
 178 ##########################
 179 # ls aliases and colours #
 180 ##########################
 181
 182 # GNU ls colours
 183 eval "$(TERM=xterm dircolors 2> /dev/null)"
 184
 185 # BSD ls colours
 186 export LSCOLORS="ExFxCxDxBxEGEDABAGACAD"
 187
 188 # Lets find the ls
 189 if ls --color=auto -v &> /dev/null; then
 190     alias ls='ls --color=auto -v'
 191 elif gls --color=auto -v &> /dev/null; then
 192     alias ls='gls --color=auto -v'
 193 elif ls -G &> /dev/null; then
 194     alias ls='ls -G'
 195 else
 196     alias ls='ls -F'
 197 fi
 198 alias ll='ls -hlF'
 199 alias la='ls -ha'
 200 alias  l='ls -halF'
 201
 202 ##############
 203 # ps aliases #
 204 ##############
 205
 206 alias _psresources='ps -wAo pid,user,%cpu,%mem,stat,start,time,args'
 207 if [ "$(uname)" = "Linux" ]; then
 208     alias pscpu='_psresources --sort -%cpu|less -S'
 209     alias psmem='_psresources --sort -%mem|less -S'
 210     alias pstree='ps --forest -weo pid,user:16,args --sort start_time|less -S'
 211     alias pstime='ps -wAo pid,user,lstart,args --sort start_time|less -S'
 212 else
 213     alias pscpu='_psresources -r|less -S'
 214     alias psmem='_psresources -m|less -S'
 215     alias pstime='ps -wAo pid,user,lstart,args|less -S'
 216 fi
 217
 218 #################
 219 # Other aliases #
 220 #################
 221
 222 alias f='find . -iname'
 223 if echo x | grep -q --color=auto x &> /dev/null; then
 224     alias grep='grep --color=auto'
 225 fi
 226 alias rg='rg -p'
 227 alias scp='scp -o ControlPath=none'
 228 alias bc='bc -ql'
 229 alias watch='watch -n1'
 230 alias sudo='sudo ' # ability to use aliases with sudo
 231 alias sudosu='sudo su -l -s /bin/bash'
 232 alias python='PYTHONSTARTUP=~/.pythonrc.py python3'
 233 alias webshare='python3 -mhttp.server'
 234
 235 if ! command -v pbcopy &> /dev/null; then
 236     alias pbcopy='xsel --clipboard --input'
 237     alias pbcopym='xsel --input'
 238     alias pbpaste='xsel --clipboard --output'
 239     alias pbpastem='xsel --output'
 240 fi
 241
 242 # man with coloured headings and a terminal title
 243 function man {
 244     echo -ne "\\033]0;man $*\\007"
 245
 246     env \
 247         LESS_TERMCAP_md=$'\E[01;38;5;74m' \
 248         LESS_TERMCAP_me=$'\E[0m' \
 249         LESS_TERMCAP_us=$'\E[04;38;5;146m' \
 250         LESS_TERMCAP_ue=$'\E[0m' \
 251         LC_CTYPE=C \
 252     man "$@"
 253 }
 254
 255 # Creates the directory if it doesn't exist, and changes into it
 256 function mcd {
 257     # shellcheck disable=SC2164
 258     mkdir -p "$1" && cd "$1"
 259 }
 260
 261 # Sets the nice and ionice priorities for the current shell to the lowest values
 262 function slowshell {
 263     ionice -c 3 -p $$
 264     renice -n 19 -p $$
 265 }
 266
 267 # SSH to an unknown host and print the new known_hosts entry
 268 function ssh_new {
 269     local new_known_hosts_file
 270     new_known_hosts_file="$(mktemp)"
 271     ssh -o UserKnownHostsFile="$new_known_hosts_file" "$@" echo 'Connection ok'
 272     cat "$new_known_hosts_file"
 273     rm -f "$new_known_hosts_file"
 274 }
 275
 276 # SSH without verifying host key
 277 function ssh_unsafe {
 278     ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null "$@"
 279 }
 280
 281 ###########
 282 # The end #
 283 ###########
 284
 285 [ -r ~/.bashrc_local ] && source ~/.bashrc_local