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

   1 ### -*-sh-*-
   2 ###
   3 ### Session startup things.
   4
   5 ## The shell-specific hook will run us if it thinks we haven't been run
   6 ## before.  We should therefore let it know.
   7 __mdw_profile=t; export __mdw_profile
   8
   9 ###--------------------------------------------------------------------------
  10 ### Utility functions.
  11
  12 ## __mdw_addto VAR DIR PATH ...
  13 ##
  14 ## VAR is the name of a PATH-like environment variable (i.e., one which
  15 ## contains a sequence of pathnames separated by colons).  DIR is either `l'
  16 ## or `r'.  The PATHs are pathnames.  Those PATHs which correspond to
  17 ## existing directories but which aren't currently named in the variable are
  18 ## added to the left or right (depending on DIR) of VAR.  The relative order
  19 ## of PATHs added in the same invokation is the same as the order they
  20 ## appeared in PATHs: the DIR argument only affects which end of the VAR they
  21 ## get added to.
  22 __mdw_addto () {
  23   local var=$1 val dir=$2 new="" change=nil
  24   eval val=\$$var
  25   shift 2
  26   for i in "$@"; do
  27     case "$new:" in *:$i:*) continue;; esac
  28     if ! [ -d $i ]; then continue; fi
  29     case "$val" in
  30       "") val=$i change=t; continue ;;
  31       $i) continue ;;
  32       *:$i:*) val=${val%%:$i:*}:${val#*:$i:} ;;
  33       $i:*) val=${val#$i:} ;;
  34       *:$i) val=${val%:$i} ;;
  35     esac
  36     new=$new:$i change=t
  37   done
  38   case $dir in
  39     l) val=${new#:}:$val ;;
  40     r) val=$val$new ;;
  41   esac
  42   case $change in t) eval $var=\$val ;; esac
  43 }
  44
  45 ## __mdw_programp NAME
  46 ##
  47 ## Does NAME exist as an executable program?
  48 __mdw_programp () { type >/dev/null 2>&1 "$1"; }
  49
  50 ## __mdw_setconf VAR CONF [DEFAULT]
  51 ##
  52 ## If CONF is defined in `~/.mdw.conf' then set VAR to its value; otherwise,
  53 ## set VAR to DEFAULT, if given; otherwise, do nothing at all.
  54 __mdw_setconf () {
  55   local var=$1 conf=$2 val; shift 2
  56   if val=$(mdw-conf 2>/dev/null "$conf" "$@"); then
  57     eval "$var=\$val; export $var"
  58   fi
  59 }
  60
  61 ###--------------------------------------------------------------------------
  62 ### Other preliminaries.
  63
  64 ## Work out my home directory, resolving symbolic links.
  65 HOME=$(cd "$HOME"; pwd -P)
  66 case ${SCHROOT_SESSION_ID+t} in t) ;; *) cd "$HOME" ;; esac
  67
  68 ## CDE's session structure is demented and doesn't leave us with a proper
  69 ## logout hook, so synthesize one here.
  70 case ${DT+t} in t) trap "source $HOME/.shell-logout" EXIT; esac
  71
  72 ###--------------------------------------------------------------------------
  73 ### Set some basic paths.
  74
  75 ## The main path.
  76 export PATH
  77 __mdw_addto PATH l \
  78   "$HOME"/bin \
  79   /usr/local/bin /usr/local/sbin /usr/local/games \
  80   /usr/bin /usr/sbin /usr/games \
  81   /usr/X11R6/bin /usr/local/X11R6/bin \
  82   /bin /sbin \
  83   /opt/nfast/bin /opt/nfast/sbin
  84
  85 ## If we have Plan 9 from User Space, then add that in.
  86 for i in /opt/plan9 /usr/local/plan9; do
  87   if [ -d $i ]; then
  88     PLAN9=$i; export PLAN9
  89     __mdw_addto PATH r $i/bin
  90     break
  91   fi
  92 done
  93
  94 ## Check for some standard path hacks.
  95 for i in ccache; do
  96   __mdw_addto PATH l "$HOME"/bin/hacks/$i
  97 done
  98
  99 ###--------------------------------------------------------------------------
 100 ### Some other preliminaries.
 101
 102 ## Establish a temporary directory.
 103 case ${TMPDIR+t} in
 104   t) ;;
 105   *) if __mdw_programp tmpdir; then eval $(tmpdir -b); fi
 106 esac
 107 TMP=$TMPDIR; export TMP
 108
 109 ## Sensible umask if users have their own groups.
 110 umask 002
 111
 112 ###--------------------------------------------------------------------------
 113 ### Text editor configuration.
 114
 115 MDW_EDITOR=ed
 116 emacs_startup_args="--no-site-file --mdw-fast-startup -nw"
 117 for ed in \
 118   "emacs24 $emacs_startup_args" \
 119   "emacs23 $emacs_startup_args" \
 120   "emacs22 $emacs_startup_args" \
 121   "emacs21 $emacs_startup_args" \
 122   zile mg \
 123   "emacs -nw" \
 124   vi pico nano ae
 125 do
 126   name=${ed%% *}
 127   if __mdw_programp "$name"; then MDW_EDITOR=$ed; break; fi
 128 done
 129 EDITOR=mdw-editor VISUAL=mdw-editor
 130 export EDITOR VISUAL MDW_EDITOR
 131 unset ed emacs_startup_args
 132
 133 ###--------------------------------------------------------------------------
 134 ### Locale configuration.
 135
 136 case ${DISPLAY+t} in
 137   t)
 138     __mdw_setconf LANG x-ctype POSIX
 139     ;;
 140   *)
 141     : LANG=${LC_CTYPE-${LC_ALL-$(mdw-conf console-ctype POSIX)}}
 142     case "$TERM,$(tty)" in
 143       linux,/dev/tty*)
 144         if { vt-is-UTF8 || kbd_mode | grep UTF-8; } >/dev/null 2>&1; then
 145           ctype=.utf8
 146         else
 147           ctype=
 148         fi
 149         LANG=${LANG%.*}$ctype
 150         ;;
 151     esac
 152     ;;
 153 esac
 154 unset LC_ALL
 155 export LANG
 156
 157 LC_COLLATE=POSIX; export LC_COLLATE
 158
 159 ###--------------------------------------------------------------------------
 160 ### Pagers.
 161
 162 ## Choose a sensible pager.
 163 MDW_PAGER=more
 164 for pg in less more; do
 165   if __mdw_programp "$pg"; then MDW_PAGER=$(command -v "$pg"); break; fi
 166 done
 167 PAGER=mdw-pager METAMAIL_PAGER=mdw-pager
 168 export MDW_PAGER PAGER METAMAIL_PAGER
 169 unset pg
 170
 171 ## Configure `less'.
 172 LESS="-iqgRh1j.3FSX"; export LESS
 173 LESSOPEN="|lesspipe.sh %s"; export LESSOPEN
 174 case ${LC_CTYPE-$LANG} in
 175   *utf8 | *utf-8 | *UTF8 | *UTF-8) LESSCHARSET=utf-8 ;;
 176   *) LESSCHARSET=latin1 ;;
 177 esac
 178 export LESSCHARSET
 179 if __mdw_programp global; then
 180   LESSGLOBALTAGS=global
 181   export LESSGLOBALTAGS
 182 fi
 183
 184 ###--------------------------------------------------------------------------
 185 ### Miscellaneous things.
 186
 187 ## Mail and general identification.
 188 __mdw_setconf MAIL mailbox /var/mail/mdw
 189 __mdw_setconf EMAIL email mdw@distorted.org.uk
 190 NAME="Mark Wooding"; export NAME
 191
 192 ## News server.
 193 __mdw_setconf NNTPSERVER nntp-server
 194
 195 ## Some programs want to know the hostname.
 196 case ${HOST+t} in t) ;; *) HOST=$(hostname); export HOST; esac
 197
 198 ## HTTP and FTP proxies.
 199 http=$(mdw-conf http-proxy none)
 200 case "${http_proxy-none},$http" in
 201   *,none) ;;
 202   none,*) http_proxy=http://$http/; export http_proxy ;;
 203 esac
 204 ftp=$(mdw-conf ftp-proxy none)
 205 case "${ftp_proxy-none},$ftp,${http_proxy-none}" in
 206   *,none,none) ;;
 207   none,none,*) ftp_proxy=$http_proxy; export ftp_proxy ;;
 208   none,*,*) ftp_proxy=http://$ftp/; export ftp_proxy ;;
 209 esac
 210 unset http ftp
 211
 212 ## Ncurses programs should use the Unicode box-drawing characters because the
 213 ## alternative character set stuff isn't supported well.
 214 NCURSES_NO_UTF8_ACS=1; export NCURSES_NO_UTF8_ACS
 215
 216 ## Shut up Perl's readline machinery.
 217 PERL_READLINE_NOWARN=yes; export PERL_READLINE_NOWARN
 218
 219 ## If we have `distcc' then tell `ccache' to use it.
 220 if __mdw_programp distcc; then CCACHE_PREFIX=distcc; export CCACHE_PREFIX; fi
 221
 222 ## Choose a sensible web browser.  If we have a display, try to pick a
 223 ## graphical one.
 224 set -- elinks w3m lynx
 225 case ${DISPLAY+t} in
 226   t) set -- chromium mdw-iceweasel mdw-chrome iceweasel firefox "$@" ;;
 227 esac
 228 for b in "$@"; do
 229   if __mdw_programp $b; then BROWSER=$b; export BROWSER; break; fi
 230 done
 231 unset b
 232
 233 ## Acquiring root privileges.  This is mainly the job of `bashrc', but we
 234 ## cache the mechanism here.
 235 __mdw_setconf __MDW_ROOTLY rootly
 236 BECOME="--preserve-environment"; export BECOME
 237
 238 ## It's useful to see the little sigils in `ls'.
 239 case ${LS_OPTIONS+t} in t) ;; *) LS_OPTIONS="-F"; export LS_OPTIONS; esac
 240
 241 ## Settings for BBC BASIC listing.
 242 export BASCAT="-l +n"
 243
 244 ## Version control hacking.
 245 CVS_RSH=ssh; export CVS_RSH
 246 __mdw_setconf CVSROOT cvs-root
 247 __mdw_setconf SVNROOT svn-root
 248 P4CONFIG=.p4; export P4CONFIG
 249
 250 ## Help X programs find their resources.
 251 XUSERFILESEARCHPATH="$HOME/.Xapps/%N:/usr/lib/X11/%T/%N%S"
 252 export XUSERFILESEARCHPATH
 253
 254 ## Make OpenOffice.org do its thing properly.
 255 OOO_FORCE_DESKTOP=gnome; export OOO_FORCE_DESKTOP
 256
 257 ## Hack Qt-ish things to be unstoatly.
 258 QT_STYLE_OVERRIDE=gtk2; export QT_STYLE_OVERRIDE
 259
 260 ## Configure `ps'.
 261 PS_PERSONALITY=gnu; export PS_PERSONALITY
 262
 263 ## Disable core dumps.
 264 ulimit -S -c 0
 265
 266 ###--------------------------------------------------------------------------
 267 ### Authentication and SSH hacking.
 268
 269 ## Start an authentication agent.  This is unnecessarily fiddly.  If there's
 270 ## a Gnome keyring server then we should use that; unfortunately, it may not
 271 ## yet have had a chance to populate the environment with its settings, so we
 272 ## go off and fetch them.
 273 if { { [ "$GNOME_KEYRING_CONTROL" ] &&
 274        [ -s "$GNOME_KEYRING_CONTROL" ]; } ||
 275      { [ "$DBUS_SESSION_BUS_ADDRESS" ] &&
 276        __mdw_programp gnome-keyring-daemon; }; } &&
 277    stuff=$(gnome-keyring-daemon -s -c gpg 2>/dev/null)
 278 then
 279   eval "$stuff"
 280   export SSH_AUTH_SOCK GPG_AGENT_INFO
 281 fi
 282
 283 ## If we still don't have an agent then start one with a stable name.
 284 eval $(start-ssh-agent -b)
 285
 286 ## Decide whether this session should be considered `secure'.  A session is
 287 ## secure if it's on a secure TTY, but there are lots of ways of finding out
 288 ## which TTYs are secure.
 289 if [ -z "$__mdw_bashrc" ] && [ "$__mdw_force_secure_session" = "yes" ] ||
 290    ( tty="`tty`" devtty="(/dev/)?${tty#/dev/}"
 291      { { { [ -e /etc/securetty ] && sectty=/etc/securetty; } ||
 292          { [ -e /etc/securettys ] && sectty=/etc/securettys; }; } &&
 293        egrep "$devtty" $sectty >/dev/null; } ||
 294      { [ -e /etc/default/login ] &&
 295        egrep "^CONSOLE=$devtty" /etc/default/login >/dev/null; } ||
 296      case "${tty#/dev/}" in
 297        console|systty|tty[0-9]) true ;;
 298        *) false ;;
 299      esac )
 300 then
 301   __mdw_sechost=$HOST; export __mdw_sechost
 302 fi
 303
 304 ## Start a passphrase pixie if there is one and it's not already running.
 305 if pixie --version >/dev/null 2>&1; then
 306   mkdir -p "$HOME/.catacomb"
 307   pixie=${CATACOMB_PIXIE-$HOME/.catacomb/pixie}
 308   if [ -S "$pixie" ] && pixie -C help >/dev/null 2>&1; then
 309     :
 310   else
 311     pixie -d 2>>"$HOME/.catacomb/pixie.log"
 312     __mdw_started_pixie=yes
 313   fi
 314 fi
 315
 316 ###--------------------------------------------------------------------------
 317 ### Finishing touches.
 318
 319 ## For old-fashioned Bourne-ish shells, set up per-shell definitions.
 320 ENV=$HOME/.shrc; export ENV
 321
 322 ## If there's a local hook then run it.
 323 if [ -f "$HOME/.profile-local" ]; then . "$HOME/.profile-local"; fi
 324
 325 ###----- That's all, folks --------------------------------------------------