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 rc="rc -l"
 141 alias ssync="rsync -e ssh"
 142 alias rootly=$__MDW_ROOTLY
 143 alias r=rootly
 144 alias re="rootly $EDITOR"
 145 alias pstree="pstree -hl"
 146 alias cdtmp='cd ${TMPDIR-/tmp}'
 147 alias pushtmp='pushd ${TMPDIR-/tmp}'
 148 alias e="$EDITOR"
 149 alias svn="svnwrap svn"
 150 alias @="ssh"
 151
 152 [ -r /etc/bash_completion ] && . /etc/bash_completion
 153 [ -r $HOME/.bash_completion ] && . $HOME/.bash_completion
 154
 155 # --- Make `xt' start an xterm, maybe logging into a remote host ---
 156
 157 xt () {
 158   case "$1" in
 159     @*)
 160       local remote=${1#@} title
 161       shift
 162       if [ $# -gt 0 ]; then
 163         title="xterm [$remote] $1"
 164       else
 165         title="xterm [$remote]"
 166       fi
 167       (xterm -title "$title" -e ssh $remote "$@" &)
 168       ;;
 169     *)
 170       (xterm "$@" &)
 171       ;;
 172   esac
 173 }
 174
 175 # --- Turning on and off core dumps ---
 176
 177 core () {
 178   case "x$1" in
 179     xon|xy|xyes)
 180       ulimit -Sc `ulimit -Hc`
 181       ;;
 182     xoff|xn|xno)
 183       ulimit -Sc 0
 184       ;;
 185     x)
 186       local l=`ulimit -Sc`
 187       case $l in
 188         0) echo "Core dumps disabled" ;;
 189         unlimited) echo "Core dumps enabled" ;;
 190         *) echo "Core dump limit is $l blocks" ;;
 191       esac
 192       ;;
 193     *)
 194       echo >&2 "usage: core [yn]"
 195       return 1
 196       ;;
 197   esac
 198 }
 199
 200 # --- Turning on and off path hacks ---
 201
 202 path-add () {
 203   local pathvar export dir val
 204   case $# in
 205     1) pathvar=PATH dir=$1 export="export PATH";;
 206     2) pathvar=$1 dir=$2 export=:;;
 207     *) echo >&2 "Usage: $0 [VAR] DIR";;
 208   esac
 209   eval "val=\$$pathvar"
 210   case ":$val:" in
 211     *:"$dir":*) ;;
 212     *) val=$dir:$val ;;
 213   esac
 214   eval "$pathvar=\$val"
 215   $export
 216 }
 217
 218 path-remove () {
 219   local pathvar export dir val
 220   case $# in
 221     1) pathvar=PATH dir=$1 export="export PATH";;
 222     2) pathvar=$1 dir=$2 export=:;;
 223     *) echo >&2 "Usage: $0 [VAR] DIR";;
 224   esac
 225   eval "val=\$$pathvar"
 226   case ":$val:" in
 227     :"$dir":) val= ;;
 228     :"$dir":*) val=${val#$dir:} ;;
 229     *:"$dir":) val=${val%:$dir} ;;
 230     *:"$dir":*) val=${val/:$dir:/:} ;;
 231   esac
 232   eval "$pathvar=\$val"
 233   $export
 234 }
 235
 236 pathhack () {
 237   if [ $# -eq 0 ]; then
 238     local IFS=:
 239     for e in $PATH; do
 240       case "$e" in
 241         "$HOME/bin/hacks/"*)
 242           echo ${e#$HOME/bin/hacks/}
 243           ;;
 244       esac
 245     done
 246     return
 247   fi
 248   local force=nil
 249   local path=$PATH
 250   while [ $# -gt 0 ]; do
 251     arg=$1
 252     case "$arg" in
 253       -f | --force)
 254         force=t
 255         shift
 256         continue
 257         ;;
 258       --)
 259         shift
 260         break
 261         ;;
 262       [-+]*)
 263         ;;
 264       *)
 265         break
 266         ;;
 267     esac
 268     hack=${arg#[+-]}
 269     dir=$HOME/bin/hacks/$hack
 270     [ -d "$dir" ] || {
 271       echo "$0: path hack $hack not found"
 272       return 1
 273     }
 274     case "$arg,$force,:$PATH:" in
 275       -*,*,*:"$dir":*)
 276         path-remove path "$dir"
 277         ;;
 278       +*,t,*:"$dir":*)
 279         path-remove path "$dir"
 280         path-add path "$dir"
 281         ;;
 282       +*,nil,*:"$dir":*)
 283         ;;
 284       +*,*)
 285         path-add path "$dir"
 286         ;;
 287     esac
 288     shift
 289   done
 290   if [ $# -eq 0 ]; then
 291     PATH=$path
 292     export PATH
 293   else
 294     PATH=$path "$@"
 295   fi
 296 }
 297
 298 # --- Switching security worlds ---
 299
 300 world () {
 301   local nfast=${NFAST_HOME-/opt/nfast}
 302   local kmdata
 303   case "$#" in
 304     0)
 305       echo "${NFAST_KMDATA#$nfast/kmdata-}"
 306       ;;
 307     *)
 308       if [ -d "$1" ]; then
 309         kmdata=$1
 310       elif [ -d "$nfast/kmdata-$1" ]; then
 311         kmdata=$nfast/kmdata-$1
 312       else
 313         echo >&2 "world: can't find world $1"
 314         return 1
 315       fi
 316       shift
 317       case "$#" in
 318         0) export NFAST_KMDATA=$kmdata ;;
 319         *) "$@" ;;
 320       esac
 321       ;;
 322   esac
 323 }
 324
 325 # --- Fix `man' under Slowaris ---
 326
 327 case "$MACHTYPE" in
 328   *solaris*)
 329     man () {
 330       declare -i i=0
 331       declare arg
 332       declare -a man
 333
 334       for arg; do
 335         case "$arg" in [0-9]*) man[i+=1]="-s" ;; esac
 336         man[i+=1]="$arg"
 337       done
 338       command man "${man[@]}"
 339     }
 340     ;;
 341 esac
 342
 343 # --- For `root' use -- some simple molly-guards ---
 344
 345 if (( UID == 0 )); then
 346   alias rm='rm -i' cp='cp -i' mv='mv -i'
 347   set -o noclobber
 348 fi
 349
 350 [ -f "$HOME/.bashrc-local" ] && . "$HOME/.bashrc-local"
 351
 352 fi