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       $i) continue ;;
  31       *:$i:*) val=${val%%:$i:*}:${val#*:$i:} ;;
  32       $i:*) val=${val#$i:} ;;
  33       *:$i) val=${val%:$i} ;;
  34     esac
  35     new=$new:$i change=t
  36   done
  37   case $dir in
  38     l) val=${new#:}${val:+:$val} ;;
  39     r) val=${val:+$val:}${new#:} ;;
  40   esac
  41   case $change in t) eval $var=\$val ;; esac
  42 }
  43
  44 ## __mdw_programp NAME
  45 ##
  46 ## Does NAME exist as an executable program?
  47 __mdw_programp () { type >/dev/null 2>&1 "$1"; }
  48
  49 ## __mdw_setconf VAR CONF [DEFAULT]
  50 ##
  51 ## If CONF is defined in `~/.mdw.conf' then set VAR to its value; otherwise,
  52 ## set VAR to DEFAULT, if given; otherwise, do nothing at all.
  53 __mdw_setconf () {
  54   local var=$1 conf=$2 val; shift 2
  55   if val=$(mdw-conf 2>/dev/null "$conf" "$@"); then
  56     eval "$var=\$val; export $var"
  57   fi
  58 }
  59
  60 ## __mdw_export_if_defined VAR ...
  61 ##
  62 ## If VARs are defined, then export them.
  63 __mdw_export_if_defined () {
  64   local var t
  65   for var in "$@"; do
  66     eval t=\${$var+t}
  67     case $t in t) export $var ;; esac
  68   done
  69 }
  70
  71 ###--------------------------------------------------------------------------
  72 ### Other preliminaries.
  73
  74 ## Work out my home directory, resolving symbolic links.
  75 HOME=$(cd "$HOME"; pwd -P)
  76 case ${SCHROOT_SESSION_ID+t} in t) ;; *) cd "$HOME" ;; esac
  77
  78 ## CDE's session structure is demented and doesn't leave us with a proper
  79 ## logout hook, so synthesize one here.
  80 case ${DT+t} in t) trap "source $HOME/.shell-logout" EXIT; esac
  81
  82 ###--------------------------------------------------------------------------
  83 ### Set some basic paths.
  84
  85 ## The main path.
  86 export PATH
  87 __mdw_addto PATH l \
  88   "$HOME"/bin \
  89   /usr/local/bin /usr/local/sbin /usr/local/games \
  90   /usr/bin /usr/sbin /usr/games \
  91   /usr/X11R6/bin /usr/local/X11R6/bin \
  92   /bin /sbin \
  93   /opt/nfast/bin /opt/nfast/sbin
  94
  95 ## If we have Plan 9 from User Space, then add that in.
  96 for i in /opt/plan9 /usr/local/plan9; do
  97   if [ -d $i ]; then
  98     PLAN9=$i; export PLAN9
  99     __mdw_addto PATH r $i/bin
 100     break
 101   fi
 102 done
 103
 104 ## Check for some standard path hacks.
 105 for i in ccache; do
 106   __mdw_addto PATH l "$HOME"/bin/hacks/$i
 107 done
 108
 109 ###--------------------------------------------------------------------------
 110 ### Some other preliminaries.
 111
 112 ## Set a per-process memory limit.  It's much less common for a process to
 113 ## need a lot of memory for a legitimate reason than for it to be a memory
 114 ## leak or some other bug that's going to cause swap death for no good
 115 ## reason.
 116 ulimit -Sv $(mdw-conf memory-limit 4194303)
 117
 118 ## Establish a temporary directory.
 119 case ${TMPDIR+t} in
 120   t) ;;
 121   *) if __mdw_programp tmpdir; then eval $(tmpdir -b); fi
 122 esac
 123 TMP=$TMPDIR; export TMP
 124
 125 ## Sensible umask if users have their own groups.
 126 umask 002
 127
 128 ###--------------------------------------------------------------------------
 129 ### Text editor configuration.
 130
 131 MDW_EDITOR=ed
 132 emacs_startup_args="--no-site-file --mdw-fast-startup -nw"
 133 for ed in \
 134   "emacs24 $emacs_startup_args" \
 135   "emacs23 $emacs_startup_args" \
 136   "emacs22 $emacs_startup_args" \
 137   "emacs21 $emacs_startup_args" \
 138   zile mg \
 139   "emacs -nw" \
 140   vi pico nano ae
 141 do
 142   name=${ed%% *}
 143   if __mdw_programp "$name"; then MDW_EDITOR=$ed; break; fi
 144 done
 145 EDITOR=mdw-editor VISUAL=mdw-editor
 146 export EDITOR VISUAL MDW_EDITOR
 147 unset ed emacs_startup_args
 148
 149 ###--------------------------------------------------------------------------
 150 ### Locale configuration.
 151
 152 case ${LC_MDWSSHLANG+t},${DISPLAY+t} in
 153   t,*)
 154     LANG=$LC_MDWSSHLANG
 155     ;;
 156   ,t)
 157     __mdw_setconf LANG x-ctype POSIX
 158     ;;
 159   *)
 160     : LANG=${LC_CTYPE-${LC_ALL-$(mdw-conf console-ctype POSIX)}}
 161     case "$TERM,$(tty)" in
 162       linux,/dev/tty*)
 163         if { vt-is-UTF8 || kbd_mode | grep UTF-8; } >/dev/null 2>&1; then
 164           ctype=.UTF-8
 165         else
 166           ctype=
 167         fi
 168         LANG=${LANG%.*}$ctype
 169         ;;
 170     esac
 171     ;;
 172 esac
 173 unset LC_ALL
 174 export LANG
 175
 176 LC_COLLATE=POSIX; export LC_COLLATE
 177
 178 case ${LANG+t} in
 179   t) LC_MDWSSHLANG=$LANG; export LC_MDWSSHLANG ;;
 180 esac
 181
 182 ###--------------------------------------------------------------------------
 183 ### Pagers.
 184
 185 ## Choose a sensible pager.
 186 MDW_PAGER=more
 187 for pg in less more; do
 188   if __mdw_programp "$pg"; then MDW_PAGER=$(command -v "$pg"); break; fi
 189 done
 190 PAGER=mdw-pager METAMAIL_PAGER=mdw-pager
 191 export MDW_PAGER PAGER METAMAIL_PAGER
 192 unset pg
 193
 194 ## Configure `less'.
 195 case ${LC_CTYPE-$LANG} in
 196   *utf8 | *utf-8 | *UTF8 | *UTF-8) LESSCHARSET=utf-8 ;;
 197   *) LESSCHARSET=latin1 ;;
 198 esac
 199 export LESSCHARSET
 200 if __mdw_programp global; then
 201   LESSGLOBALTAGS=global
 202   export LESSGLOBALTAGS
 203 fi
 204
 205 ## Get Debian `groff' to produce control sequences rather than overstriking.
 206 GROFF_SGR=t; export GROFF_SGR
 207
 208 ###--------------------------------------------------------------------------
 209 ### Miscellaneous things.
 210
 211 ## Mail and general identification.
 212 __mdw_setconf MAIL mailbox /var/mail/mdw
 213 __mdw_setconf EMAIL email mdw@distorted.org.uk
 214 NAME="Mark Wooding"; export NAME
 215
 216 ## News server.
 217 __mdw_setconf NNTPSERVER nntp-server
 218
 219 ## Some programs want to know the hostname.
 220 case ${HOST+t} in t) ;; *) HOST=$(hostname); export HOST; esac
 221
 222 ## HTTP and FTP proxies.
 223 http=$(mdw-conf http-proxy none)
 224 case "${http_proxy-none},$http" in
 225   *,none) ;;
 226   none,*) http_proxy=http://$http/; export http_proxy ;;
 227 esac
 228 https=$(mdw-conf https-proxy none)
 229 case "${https_proxy-none},$https,${http_proxy-none}" in
 230   *,none,none) ;;
 231   none,none,*) https_proxy=$http_proxy; export https_proxy ;;
 232   none,*,*) https_proxy=http://$https/; export ftp_proxy ;;
 233 esac
 234 ftp=$(mdw-conf ftp-proxy none)
 235 case "${ftp_proxy-none},$ftp,${http_proxy-none}" in
 236   *,none,none) ;;
 237   none,none,*) ftp_proxy=$http_proxy; export ftp_proxy ;;
 238   none,*,*) ftp_proxy=http://$ftp/; export ftp_proxy ;;
 239 esac
 240 unset http https ftp
 241
 242 ## Ncurses programs should use the Unicode box-drawing characters because the
 243 ## alternative character set stuff isn't supported well.
 244 NCURSES_NO_UTF8_ACS=1; export NCURSES_NO_UTF8_ACS
 245
 246 ## Shut up Perl's readline machinery.
 247 PERL_READLINE_NOWARN=yes; export PERL_READLINE_NOWARN
 248
 249 ## If we have `distcc' then tell `ccache' to use it.
 250 if __mdw_programp distcc; then CCACHE_PREFIX=distcc; export CCACHE_PREFIX; fi
 251
 252 ## Choose a sensible web browser.  If we have a display, try to pick a
 253 ## graphical one.
 254 set -- elinks w3m lynx
 255 case ${DISPLAY+t} in
 256   t) set -- mdw-iceweasel mdw-chrome iceweasel firefox "$@" ;;
 257 esac
 258 for b in "$@"; do
 259   if __mdw_programp $b; then BROWSER=$b; export BROWSER; break; fi
 260 done
 261 unset b
 262
 263 ## Acquiring root privileges.  This is mainly the job of `bashrc', but we
 264 ## cache the mechanism here.
 265 __mdw_setconf __MDW_ROOTLY rootly
 266 BECOME="--preserve-environment"; export BECOME
 267
 268 ## `rsync' configuration.
 269 RSYNC_PROTECT_ARGS=1; export RSYNC_PROTECT_ARGS
 270
 271 ## It's useful to see the little sigils in `ls'.
 272 case ${LS_OPTIONS+t} in t) ;; *) LS_OPTIONS="-F"; export LS_OPTIONS; esac
 273
 274 ## Settings for BBC BASIC listing.
 275 export BASCAT="-l +n"
 276
 277 ## Version control hacking.
 278 CVS_RSH=ssh; export CVS_RSH
 279 __mdw_setconf CVSROOT cvs-root
 280 __mdw_setconf SVNROOT svn-root
 281 P4CONFIG=.p4; export P4CONFIG
 282
 283 ## Help X programs find their resources.
 284 XUSERFILESEARCHPATH="$HOME/.Xapps/%N:/usr/lib/X11/%T/%N%S"
 285 export XUSERFILESEARCHPATH
 286
 287 ## Make OpenOffice.org do its thing properly.
 288 OOO_FORCE_DESKTOP=gnome; export OOO_FORCE_DESKTOP
 289
 290 ## Hack Qt-ish things to be unstoatly.
 291 ##QT_QPA_PLATFORMTHEME=gtk2; export QT_QPA_PLATFORMTHEME
 292 QT_AUTO_SCREEN_SCALE_FACTOR=0; export QT_AUTO_SCREEN_SCALE_FACTOR
 293
 294 ## Use X11 input method (including compose key sequences) everywhere.
 295 GTK_IM_MODULE=xim; export GTK_IM_MODULE
 296 QT_IM_MODULE=xim; export QT_IM_MODULE
 297
 298 ## Don't hide scrollbars.
 299 GTK_OVERLAY_SCROLLING=0; export GTK_OVERLAY_SCROLLING
 300
 301 ## Rust Cargo things.
 302 CARGO_HOME=$HOME/.cache/cargo; export CARGO_HOME
 303
 304 ## Configure `ps'.
 305 PS_PERSONALITY=gnu; export PS_PERSONALITY
 306
 307 ## Configure Debian building.
 308 DEB_BUILD_OPTIONS="parallel=$(mdw-conf make-parallel 4)"
 309 export DEB_BUILD_OPTIONS
 310
 311 ## Turn off angry fruit salad error messages from things.
 312 DPKG_COLORS=never; export DPKG_COLORS
 313 GCC_COLORS=; export GCC_COLORS
 314 CCC_OVERRIDE_OPTIONS="#^-fno-color-diagnostics"; export CCC_OVERRIDE_OPTIONS
 315
 316 ## Local library directories.
 317 __mdw_addto PERLLIB l $HOME/lib/perl; __mdw_export_if_defined PERLLIB
 318 __mdw_addto PYTHONPATH l $HOME/lib/python; __mdw_export_if_defined PYTHONPATH
 319
 320 ## Disable core dumps.
 321 ulimit -S -c 0
 322
 323 ###--------------------------------------------------------------------------
 324 ### Authentication and SSH hacking.
 325
 326 ## Start an authentication agent.  This is unnecessarily fiddly.  If there's
 327 ## a Gnome keyring server then we should use that; unfortunately, it may not
 328 ## yet have had a chance to populate the environment with its settings, so we
 329 ## go off and fetch them.
 330 if { { [ "$GNOME_KEYRING_CONTROL" ] &&
 331        [ -s "$GNOME_KEYRING_CONTROL" ]; } ||
 332      { [ "$DBUS_SESSION_BUS_ADDRESS" ] &&
 333        __mdw_programp gnome-keyring-daemon; }; } &&
 334    stuff=$(gnome-keyring-daemon -s -c gpg 2>/dev/null)
 335 then
 336   eval "$stuff"
 337   export SSH_AUTH_SOCK GPG_AGENT_INFO
 338 fi
 339
 340 ## If we still don't have an agent then start one with a stable name.
 341 eval $(start-ssh-agent -b)
 342
 343 ## Decide whether this session should be considered `secure'.  A session is
 344 ## secure if it's on a secure TTY, but there are lots of ways of finding out
 345 ## which TTYs are secure.
 346 if [ -z "$__mdw_bashrc" ] && [ "$__mdw_force_secure_session" = "yes" ] ||
 347    ( tty="`tty`" devtty="(/dev/)?${tty#/dev/}"
 348      { { { [ -e /etc/securetty ] && sectty=/etc/securetty; } ||
 349          { [ -e /etc/securettys ] && sectty=/etc/securettys; }; } &&
 350        egrep "$devtty" $sectty >/dev/null; } ||
 351      { [ -e /etc/default/login ] &&
 352        egrep "^CONSOLE=$devtty" /etc/default/login >/dev/null; } ||
 353      case "${tty#/dev/}" in
 354        console|systty|tty[0-9]) true ;;
 355        *) false ;;
 356      esac )
 357 then
 358   __mdw_sechost=$HOST; export __mdw_sechost
 359 fi
 360
 361 ## Start a passphrase pixie if there is one and it's not already running.
 362 if pixie --version >/dev/null 2>&1; then
 363   mkdir -p "$HOME/.catacomb"
 364   pixie=${CATACOMB_PIXIE-$HOME/.catacomb/pixie}
 365   if [ -S "$pixie" ] && pixie -C help >/dev/null 2>&1; then
 366     :
 367   else
 368     pixie -d 2>>"$HOME/.catacomb/pixie.log"
 369     __mdw_started_pixie=yes
 370   fi
 371 fi
 372
 373 ###--------------------------------------------------------------------------
 374 ### Finishing touches.
 375
 376 ## For old-fashioned Bourne-ish shells, set up per-shell definitions.
 377 ENV=$HOME/.shrc; export ENV
 378
 379 ## If there's a local hook then run it.
 380 if [ -f "$HOME/.profile-local" ]; then . "$HOME/.profile-local"; fi
 381
 382 ###----- That's all, folks --------------------------------------------------