mdw@git.distorted.org.uk Git - profile/blob - dot/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 # --- Some colour `grep' support ---
 116
 117 export GREP_COLORS="mt=01;31:ms=01;31:mc=031;31:fn=36:ln=36:bn=36:se=34"
 118
 119 greplike () {
 120   declare grep=$1; shift
 121   if [ -t 1 ]; then
 122     command $grep ${GREP_COLORS+--color=always} "$@" | mdw-pager
 123   else
 124     command $grep "$@"
 125   fi
 126 }
 127 alias grep="greplike grep"
 128 alias egrep="greplike egrep"
 129 alias fgrep="greplike fgrep"
 130 alias zgrep="greplike fgrep"
 131
 132 # --- Set up some simple aliases ---
 133
 134 alias cx='chmod a+x'
 135 alias which="command -v"
 136 alias ssync="rsync -e ssh"
 137 alias rootly=$__MDW_ROOTLY
 138 alias r=rootly
 139 alias re="rootly $EDITOR"
 140 alias pstree="pstree -hl"
 141 alias cdtmp='cd ${TMPDIR-/tmp}'
 142 alias pushtmp='pushd ${TMPDIR-/tmp}'
 143 alias e="$EDITOR"
 144 alias svn="svnwrap svn"
 145 alias @="ssh"
 146
 147 [ -r /etc/bash_completion ] && . /etc/bash_completion
 148 [ -r $HOME/.bash_completion ] && . $HOME/.bash_completion
 149
 150 # --- Make `xt' start an xterm, maybe logging into a remote host ---
 151
 152 xt () {
 153   case "$1" in
 154     @*)
 155       local remote=${1#@} title
 156       shift
 157       if [ $# -gt 0 ]; then
 158         title="xterm [$remote] $1"
 159       else
 160         title="xterm [$remote]"
 161       fi
 162       (xterm -title "$title" -e ssh $remote "$@" &)
 163       ;;
 164     *)
 165       (xterm "$@" &)
 166       ;;
 167   esac
 168 }
 169
 170 # --- Turning on and off core dumps ---
 171
 172 core () {
 173   case "x$1" in
 174     xon|xy|xyes)
 175       ulimit -Sc `ulimit -Hc`
 176       ;;
 177     xoff|xn|xno)
 178       ulimit -Sc 0
 179       ;;
 180     x)
 181       local l=`ulimit -Sc`
 182       case $l in
 183         0) echo "Core dumps disabled" ;;
 184         unlimited) echo "Core dumps enabled" ;;
 185         *) echo "Core dump limit is $l blocks" ;;
 186       esac
 187       ;;
 188     *)
 189       echo >&2 "usage: core [yn]"
 190       return 1
 191       ;;
 192   esac
 193 }
 194
 195 # --- Turning on and off path hacks ---
 196
 197 path-add () {
 198   local pathvar export dir val
 199   case $# in
 200     1) pathvar=PATH dir=$1 export="export PATH";;
 201     2) pathvar=$1 dir=$2 export=:;;
 202     *) echo >&2 "Usage: $0 [VAR] DIR";;
 203   esac
 204   eval "val=\$$pathvar"
 205   case ":$val:" in
 206     *:"$dir":*) ;;
 207     *) val=$dir:$val ;;
 208   esac
 209   eval "$pathvar=\$val"
 210   $export
 211 }
 212
 213 path-remove () {
 214   local pathvar export dir val
 215   case $# in
 216     1) pathvar=PATH dir=$1 export="export PATH";;
 217     2) pathvar=$1 dir=$2 export=:;;
 218     *) echo >&2 "Usage: $0 [VAR] DIR";;
 219   esac
 220   eval "val=\$$pathvar"
 221   case ":$val:" in
 222     :"$dir":) val= ;;
 223     :"$dir":*) val=${val#$dir:} ;;
 224     *:"$dir":) val=${val%:$dir} ;;
 225     *:"$dir":*) val=${val/:$dir:/:} ;;
 226   esac
 227   eval "$pathvar=\$val"
 228   $export
 229 }
 230
 231 pathhack () {
 232   if [ $# -eq 0 ]; then
 233     local IFS=:
 234     for e in $PATH; do
 235       case "$e" in
 236         "$HOME/bin/hacks/"*)
 237           echo ${e#$HOME/bin/hacks/}
 238           ;;
 239       esac
 240     done
 241     return
 242   fi
 243   local force=nil
 244   local path=$PATH
 245   while [ $# -gt 0 ]; do
 246     arg=$1
 247     case "$arg" in
 248       -f | --force)
 249         force=t
 250         shift
 251         continue
 252         ;;
 253       --)
 254         shift
 255         break
 256         ;;
 257       [-+]*)
 258         ;;
 259       *)
 260         break
 261         ;;
 262     esac
 263     hack=${arg#[+-]}
 264     dir=$HOME/bin/hacks/$hack
 265     [ -d "$dir" ] || {
 266       echo "$0: path hack $hack not found"
 267       return 1
 268     }
 269     case "$arg,$force,:$PATH:" in
 270       -*,*,*:"$dir":*)
 271         path-remove path "$dir"
 272         ;;
 273       +*,t,*:"$dir":*)
 274         path-remove path "$dir"
 275         path-add path "$dir"
 276         ;;
 277       +*,nil,*:"$dir":*)
 278         ;;
 279       +*,*)
 280         path-add path "$dir"
 281         ;;
 282     esac
 283     shift
 284   done
 285   if [ $# -eq 0 ]; then
 286     PATH=$path
 287     export PATH
 288   else
 289     PATH=$path "$@"
 290   fi
 291 }
 292
 293 # --- Switching security worlds ---
 294
 295 world () {
 296   local nfast=${NFAST_HOME-/opt/nfast}
 297   local kmdata
 298   case "$#" in
 299     0)
 300       echo "${NFAST_KMDATA#$nfast/kmdata-}"
 301       ;;
 302     *)
 303       if [ -d "$1" ]; then
 304         kmdata=$1
 305       elif [ -d "$nfast/kmdata-$1" ]; then
 306         kmdata=$nfast/kmdata-$1
 307       else
 308         echo >&2 "world: can't find world $1"
 309         return 1
 310       fi
 311       shift
 312       case "$#" in
 313         0) export NFAST_KMDATA=$kmdata ;;
 314         *) "$@" ;;
 315       esac
 316       ;;
 317   esac
 318 }
 319
 320 # --- Fix `man' under Slowaris ---
 321
 322 case "$MACHTYPE" in
 323   *solaris*)
 324     man () {
 325       declare -i i=0
 326       declare arg
 327       declare -a man
 328
 329       for arg; do
 330         case "$arg" in [0-9]*) man[i+=1]="-s" ;; esac
 331         man[i+=1]="$arg"
 332       done
 333       command man "${man[@]}"
 334     }
 335     ;;
 336 esac
 337
 338 # --- For `root' use -- some simple molly-guards ---
 339
 340 if (( UID == 0 )); then
 341   alias rm='rm -i' cp='cp -i' mv='mv -i'
 342   set -o noclobber
 343 fi
 344
 345 [ -f "$HOME/.bashrc-local" ] && . "$HOME/.bashrc-local"
 346
 347 fi