mdw@git.distorted.org.uk Git - profile/blob - bashrc

   1 # -*- mode: sh; coding: utf-8 -*-
   2 #
   3 # Bash session things
   4 #
   5
   6 if [ -z "$__mdw_bashrc" ]; then
   7
   8 __mdw_bashrc=done
   9
  10 [ -z "$__mdw_profile" -a -r $HOME/.bash_profile ] && . $HOME/.bash_profile
  11 [ -r /etc/bashrc ] && . /etc/bashrc
  12
  13 # --- First of all, set up the prompt string ---
  14
  15 if [ -t 0 ]; then
  16
  17   case "$TERM" in
  18     linux*|screen*|xterm*|vt100*|eterm*)
  19       bold="\[$(tput bold)\]" unbold="\[$(tput sgr0)\]" nl="\[
\]" ;;
  20     *)
  21       bold='' unbold='' nl='' ;;
  22   esac
  23
  24   if (( EUID == 0 )); then
  25     left=`echo « | iconv -f utf8 -t //translit`
  26     right=`echo » | iconv -f utf8 -t //translit`
  27   else
  28     case $USER in
  29       mdw|mwooding)
  30         u="" left="[" right="]"
  31         ;;
  32       *)
  33         u="\\u@" left="{" right="}"
  34         ;;
  35     esac
  36     if [ "$__mdw_tty" = "`tty`" ]; then
  37       left="<" right=">"
  38     else
  39       export __mdw_tty="`tty`"
  40     fi
  41   fi
  42
  43   if [ -z "$SSH_CLIENT" ] &&
  44     [ "$__mdw_sechost" != "`hostname`" ]
  45     then
  46     sec_l='(' sec_r=')'
  47   fi
  48
  49   PS1="$nl$bold$left$sec_l$u\\h$sec_r \\w$right$unbold"
  50   PS2="$PS1 $bold>$unbold "
  51
  52 fi # is stdin a tty?
  53
  54 # --- Pagers are less useful within Emacs ---
  55
  56 case "$INSIDE_EMACS" in
  57   22.*,comint) export PAGER=cat ;;
  58 esac
  59
  60 # --- Little preferences ---
  61
  62 notify=1
  63 set -b
  64 shopt -u cdable_vars
  65 shopt -s cdspell
  66 shopt -s checkhash
  67 shopt -s checkwinsize
  68 shopt -s cmdhist
  69 shopt -u dotglob
  70 shopt -s expand_aliases
  71 shopt -s extglob
  72 shopt -s histappend
  73 shopt -s histreedit
  74 shopt -u histverify
  75 shopt -s hostcomplete
  76 shopt -s huponexit
  77 shopt -s interactive_comments
  78 shopt -s lithist
  79 shopt -u mailwarn
  80 shopt -u nocaseglob
  81 shopt -u nullglob
  82 shopt -s promptvars
  83 shopt -u shift_verbose
  84 shopt -s sourcepath
  85
  86 # --- Set the CDPATH ---
  87 #
  88 # CDPATH=~/src:/usr/src:/usr/lib:/usr/share
  89 # dots=..
  90 # i=6
  91 # while (( i > 0 )); do
  92 #   CDPATH=$CDPATH:$dots
  93 #   dots=$dots/..
  94 #   (( i -= 1 ))
  95 # done
  96 # CDPATH=$CDPATH:/
  97
  98 # --- Some colour `ls' support ---
  99
 100 [ "${TMPDIR+yes}" ] || eval `tmpdir -b`
 101 if [ -x /usr/bin/dircolors -o -x /usr/local/bin/dircolors ]; then
 102   eval `dircolors -b ~/.dircolors`
 103 else
 104   unset LS_COLORS
 105 fi
 106
 107 ls () {
 108   if [ -t 1 ]; then
 109     command ls $LS_OPTIONS ${LS_COLORS+--color=auto} "$@"
 110   else
 111     command ls "$@"
 112   fi
 113 }
 114
 115 # --- Set up some simple aliases ---
 116
 117 alias cx='chmod a+x'
 118 alias which="command -v"
 119 alias ssync="rsync -e ssh"
 120 alias rootly=$__MDW_ROOTLY
 121 alias r=rootly
 122 alias re="rootly $EDITOR"
 123 alias pstree="pstree -hl"
 124 alias cdtmp='cd ${TMPDIR-/tmp}'
 125 alias pushtmp='pushd ${TMPDIR-/tmp}'
 126 alias e="$EDITOR"
 127 alias svn="svnwrap svn"
 128 alias @="ssh"
 129
 130 [ -r /etc/bash_completion ] && . /etc/bash_completion
 131 [ -r $HOME/.bash_completion ] && . $HOME/.bash_completion
 132
 133 # --- Make `xt' start an xterm, maybe logging into a remote host ---
 134
 135 xt () {
 136   case "$1" in
 137     @*)
 138       local remote=${1#@} title
 139       shift
 140       if [ $# -gt 0 ]; then
 141         title="xterm [$remote] $1"
 142       else
 143         title="xterm [$remote]"
 144       fi
 145       (xterm -title "$title" -e ssh $remote "$@" &)
 146       ;;
 147     *)
 148       (xterm "$@" &)
 149       ;;
 150   esac
 151 }
 152
 153 # --- Turning on and off core dumps ---
 154
 155 core () {
 156   case "x$1" in
 157     xon|xy|xyes)
 158       ulimit -Sc `ulimit -Hc`
 159       ;;
 160     xoff|xn|xno)
 161       ulimit -Sc 0
 162       ;;
 163     x)
 164       local l=`ulimit -Sc`
 165       case $l in
 166         0) echo "Core dumps disabled" ;;
 167         unlimited) echo "Core dumps enabled" ;;
 168         *) echo "Core dump limit is $l blocks" ;;
 169       esac
 170       ;;
 171     *)
 172       echo >&2 "usage: core [yn]"
 173       return 1
 174       ;;
 175   esac
 176 }
 177
 178 # --- Turning on and off path hacks ---
 179
 180 path-add () {
 181   local pathvar export dir val
 182   case $# in
 183     1) pathvar=PATH dir=$1 export="export PATH";;
 184     2) pathvar=$1 dir=$2 export=:;;
 185     *) echo >&2 "Usage: $0 [VAR] DIR";;
 186   esac
 187   eval "val=\$$pathvar"
 188   case ":$val:" in
 189     *:"$dir":*) ;;
 190     *) val=$dir:$val ;;
 191   esac
 192   eval "$pathvar=\$val"
 193   $export
 194 }
 195
 196 path-remove () {
 197   local pathvar export dir val
 198   case $# in
 199     1) pathvar=PATH dir=$1 export="export PATH";;
 200     2) pathvar=$1 dir=$2 export=:;;
 201     *) echo >&2 "Usage: $0 [VAR] DIR";;
 202   esac
 203   eval "val=\$$pathvar"
 204   case ":$val:" in
 205     :"$dir":) val= ;;
 206     :"$dir":*) val=${val#$dir:} ;;
 207     *:"$dir":) val=${val%:$dir} ;;
 208     *:"$dir":*) val=${val/:$dir:/:} ;;
 209   esac
 210   eval "$pathvar=\$val"
 211   $export
 212 }
 213
 214 pathhack () {
 215   if [ $# -eq 0 ]; then
 216     local IFS=:
 217     for e in $PATH; do
 218       case "$e" in
 219         "$HOME/bin/hacks/"*)
 220           echo ${e#$HOME/bin/hacks/}
 221           ;;
 222       esac
 223     done
 224     return
 225   fi
 226   local force=nil
 227   local path=$PATH
 228   while [ $# -gt 0 ]; do
 229     arg=$1
 230     case "$arg" in
 231       -f | --force)
 232         force=t
 233         shift
 234         continue
 235         ;;
 236       --)
 237         shift
 238         break
 239         ;;
 240       [-+]*)
 241         ;;
 242       *)
 243         break
 244         ;;
 245     esac
 246     hack=${arg#[+-]}
 247     dir=$HOME/bin/hacks/$hack
 248     [ -d "$dir" ] || {
 249       echo "$0: path hack $hack not found"
 250       return 1
 251     }
 252     case "$arg,$force,:$PATH:" in
 253       -*,*,*:"$dir":*)
 254         path-remove path "$dir"
 255         ;;
 256       +*,t,*:"$dir":*)
 257         path-remove path "$dir"
 258         path-add path "$dir"
 259         ;;
 260       +*,nil,*:"$dir":*)
 261         ;;
 262       +*,*)
 263         path-add path "$dir"
 264         ;;
 265     esac
 266     shift
 267   done
 268   if [ $# -eq 0 ]; then
 269     PATH=$path
 270     export PATH
 271   else
 272     PATH=$path "$@"
 273   fi
 274 }
 275
 276 # --- Fix `man' under Slowaris ---
 277
 278 case "$MACHTYPE" in
 279   *solaris*)
 280     man () {
 281       declare -i i=0
 282       declare arg
 283       declare -a man
 284
 285       for arg; do
 286         case "$arg" in [0-9]*) man[i+=1]="-s" ;; esac
 287         man[i+=1]="$arg"
 288       done
 289       command man "${man[@]}"
 290     }
 291     ;;
 292 esac
 293
 294 # --- For `root' use -- some simple molly-guards ---
 295
 296 if (( UID == 0 )); then
 297   alias rm='rm -i' cp='cp -i' mv='mv -i'
 298   set -o noclobber
 299 fi
 300
 301 [ -f "$HOME/.bashrc-local" ] && . "$HOME/.bashrc-local"
 302
 303 fi