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