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 "$INSIDE_EMACS" in
  57   22.*,comint) export PAGER=cat ;;
  58 esac
  59
  60 # --- Little preferences ---
  61
  62 notify=1
  63 set -b
  64 shopt -u cdable_vars
  65 shopt -s cdspell
  66 shopt -s checkhash
  67 shopt -s checkwinsize
  68 shopt -s cmdhist
  69 shopt -u dotglob
  70 shopt -s expand_aliases
  71 shopt -s extglob
  72 shopt -s globstar
  73 shopt -s gnu_errfmt
  74 shopt -s histappend
  75 shopt -s histreedit
  76 shopt -u histverify
  77 shopt -s hostcomplete
  78 shopt -s huponexit
  79 shopt -s interactive_comments
  80 shopt -s lithist
  81 shopt -u mailwarn
  82 shopt -u nocaseglob
  83 shopt -u nullglob
  84 shopt -s promptvars
  85 shopt -u shift_verbose
  86 shopt -s sourcepath
  87
  88 HISTCONTROL=ignorespace:erasedups
  89
  90 # --- Set the CDPATH ---
  91 #
  92 # CDPATH=~/src:/usr/src:/usr/lib:/usr/share
  93 # dots=..
  94 # i=6
  95 # while (( i > 0 )); do
  96 #   CDPATH=$CDPATH:$dots
  97 #   dots=$dots/..
  98 #   (( i -= 1 ))
  99 # done
 100 # CDPATH=$CDPATH:/
 101
 102 # --- Some colour `ls' support ---
 103
 104 [ "${TMPDIR+yes}" ] || eval `tmpdir -b`
 105 if [ -x /usr/bin/dircolors -o -x /usr/local/bin/dircolors ]; then
 106   eval `dircolors -b ~/.dircolors`
 107 else
 108   unset LS_COLORS
 109 fi
 110
 111 ls () {
 112   if [ -t 1 ]; then
 113     command ls $LS_OPTIONS ${LS_COLORS+--color=auto} "$@"
 114   else
 115     command ls "$@"
 116   fi
 117 }
 118
 119 # --- Some colour `grep' support ---
 120
 121 export GREP_COLORS="mt=01;31:ms=01;31:mc=031;31:fn=36:ln=36:bn=36:se=34"
 122
 123 greplike () {
 124   declare grep=$1; shift
 125   if [ -t 1 ]; then
 126     command $grep ${GREP_COLORS+--color=always} "$@" | mdw-pager
 127   else
 128     command $grep "$@"
 129   fi
 130 }
 131 alias grep="greplike grep"
 132 alias egrep="greplike egrep"
 133 alias fgrep="greplike fgrep"
 134 alias zgrep="greplike zgrep"
 135
 136 # --- Set up some simple aliases ---
 137
 138 alias cx='chmod a+x'
 139 alias which="command -v"
 140 alias ssync="rsync -e ssh"
 141 alias rootly=$__MDW_ROOTLY
 142 alias r=rootly
 143 alias re="rootly $EDITOR"
 144 alias pstree="pstree -hl"
 145 alias cdtmp='cd ${TMPDIR-/tmp}'
 146 alias pushtmp='pushd ${TMPDIR-/tmp}'
 147 alias e="$EDITOR"
 148 alias svn="svnwrap svn"
 149 alias @="ssh"
 150
 151 [ -r /etc/bash_completion ] && . /etc/bash_completion
 152 [ -r $HOME/.bash_completion ] && . $HOME/.bash_completion
 153
 154 # --- Make `xt' start an xterm, maybe logging into a remote host ---
 155
 156 xt () {
 157   case "$1" in
 158     @*)
 159       local remote=${1#@} title
 160       shift
 161       if [ $# -gt 0 ]; then
 162         title="xterm [$remote] $1"
 163       else
 164         title="xterm [$remote]"
 165       fi
 166       (xterm -title "$title" -e ssh $remote "$@" &)
 167       ;;
 168     *)
 169       (xterm "$@" &)
 170       ;;
 171   esac
 172 }
 173
 174 # --- Turning on and off core dumps ---
 175
 176 core () {
 177   case "x$1" in
 178     xon|xy|xyes)
 179       ulimit -Sc `ulimit -Hc`
 180       ;;
 181     xoff|xn|xno)
 182       ulimit -Sc 0
 183       ;;
 184     x)
 185       local l=`ulimit -Sc`
 186       case $l in
 187         0) echo "Core dumps disabled" ;;
 188         unlimited) echo "Core dumps enabled" ;;
 189         *) echo "Core dump limit is $l blocks" ;;
 190       esac
 191       ;;
 192     *)
 193       echo >&2 "usage: core [yn]"
 194       return 1
 195       ;;
 196   esac
 197 }
 198
 199 # --- Turning on and off path hacks ---
 200
 201 path-add () {
 202   local pathvar export dir val
 203   case $# in
 204     1) pathvar=PATH dir=$1 export="export PATH";;
 205     2) pathvar=$1 dir=$2 export=:;;
 206     *) echo >&2 "Usage: $0 [VAR] DIR";;
 207   esac
 208   eval "val=\$$pathvar"
 209   case ":$val:" in
 210     *:"$dir":*) ;;
 211     *) val=$dir:$val ;;
 212   esac
 213   eval "$pathvar=\$val"
 214   $export
 215 }
 216
 217 path-remove () {
 218   local pathvar export dir val
 219   case $# in
 220     1) pathvar=PATH dir=$1 export="export PATH";;
 221     2) pathvar=$1 dir=$2 export=:;;
 222     *) echo >&2 "Usage: $0 [VAR] DIR";;
 223   esac
 224   eval "val=\$$pathvar"
 225   case ":$val:" in
 226     :"$dir":) val= ;;
 227     :"$dir":*) val=${val#$dir:} ;;
 228     *:"$dir":) val=${val%:$dir} ;;
 229     *:"$dir":*) val=${val/:$dir:/:} ;;
 230   esac
 231   eval "$pathvar=\$val"
 232   $export
 233 }
 234
 235 pathhack () {
 236   if [ $# -eq 0 ]; then
 237     local IFS=:
 238     for e in $PATH; do
 239       case "$e" in
 240         "$HOME/bin/hacks/"*)
 241           echo ${e#$HOME/bin/hacks/}
 242           ;;
 243       esac
 244     done
 245     return
 246   fi
 247   local force=nil
 248   local path=$PATH
 249   while [ $# -gt 0 ]; do
 250     arg=$1
 251     case "$arg" in
 252       -f | --force)
 253         force=t
 254         shift
 255         continue
 256         ;;
 257       --)
 258         shift
 259         break
 260         ;;
 261       [-+]*)
 262         ;;
 263       *)
 264         break
 265         ;;
 266     esac
 267     hack=${arg#[+-]}
 268     dir=$HOME/bin/hacks/$hack
 269     [ -d "$dir" ] || {
 270       echo "$0: path hack $hack not found"
 271       return 1
 272     }
 273     case "$arg,$force,:$PATH:" in
 274       -*,*,*:"$dir":*)
 275         path-remove path "$dir"
 276         ;;
 277       +*,t,*:"$dir":*)
 278         path-remove path "$dir"
 279         path-add path "$dir"
 280         ;;
 281       +*,nil,*:"$dir":*)
 282         ;;
 283       +*,*)
 284         path-add path "$dir"
 285         ;;
 286     esac
 287     shift
 288   done
 289   if [ $# -eq 0 ]; then
 290     PATH=$path
 291     export PATH
 292   else
 293     PATH=$path "$@"
 294   fi
 295 }
 296
 297 # --- Switching security worlds ---
 298
 299 world () {
 300   local nfast=${NFAST_HOME-/opt/nfast}
 301   local kmdata
 302   case "$#" in
 303     0)
 304       echo "${NFAST_KMDATA#$nfast/kmdata-}"
 305       ;;
 306     *)
 307       if [ -d "$1" ]; then
 308         kmdata=$1
 309       elif [ -d "$nfast/kmdata-$1" ]; then
 310         kmdata=$nfast/kmdata-$1
 311       else
 312         echo >&2 "world: can't find world $1"
 313         return 1
 314       fi
 315       shift
 316       case "$#" in
 317         0) export NFAST_KMDATA=$kmdata ;;
 318         *) "$@" ;;
 319       esac
 320       ;;
 321   esac
 322 }
 323
 324 # --- Fix `man' under Slowaris ---
 325
 326 case "$MACHTYPE" in
 327   *solaris*)
 328     man () {
 329       declare -i i=0
 330       declare arg
 331       declare -a man
 332
 333       for arg; do
 334         case "$arg" in [0-9]*) man[i+=1]="-s" ;; esac
 335         man[i+=1]="$arg"
 336       done
 337       command man "${man[@]}"
 338     }
 339     ;;
 340 esac
 341
 342 # --- For `root' use -- some simple molly-guards ---
 343
 344 if (( UID == 0 )); then
 345   alias rm='rm -i' cp='cp -i' mv='mv -i'
 346   set -o noclobber
 347 fi
 348
 349 [ -f "$HOME/.bashrc-local" ] && . "$HOME/.bashrc-local"
 350
 351 fi