-# -*-sh-*-
-#
-# Bash startup things
-#
+### -*-sh-*-
+###
+### Bash startup things
+## Only do any of this if we haven't done it before. Otherwise we
+## can have loops and lots of wasted time.
if [ -z "$__mdw_profile" ]; then
-
export __mdw_profile=done
-# --- Work out my home directory ---
-#
-# This horrible trick resolves symbolic links. It enables resolving links,
-# changes directory and displays the name of the directory in a subshell
-# to avoid changing the current state.
-
-HOME=`(set -P; cd $HOME; pwd)`
-cd $HOME
-
-# --- Add elements to a path string ---
-
+###--------------------------------------------------------------------------
+### Utility functions.
+
+## __mdw_addto VAR DIR PATH ...
+##
+## VAR is the name of a PATH-like environment variable (i.e., one which
+## contains a sequence of pathnames separated by colons). DIR is either `l'
+## or `r'. The PATHs are pathnames. Those PATHs which correspond to
+## existing directories but which aren't currently named in the variable are
+## added to the left or right (depending on DIR) of VAR. The relative order
+## of PATHs added in the same invokation is the same as the order they
+## appeared in PATHs: the DIR argument only affects which end of the VAR they
+## get added to.
__mdw_addto () {
local var=$1 val dir=$2 new="" change=nil
eval "val=\$$var"
case "$new:" in *:$i:*) continue;; esac
[ -d $i ] || continue
case "X$val" in
- X)
- val=$i change=t
- continue
- ;;
- X$i)
- continue
- ;;
- X*:$i:*)
- val=`echo $val | sed -e "s=:$i:=:="`
- ;;
- X$i:*)
- val=${val#$i:}
- ;;
- X*:$i)
- val=${val%:$i}
- ;;
+ X) val=$i change=t continue ;;
+ X$i) continue ;;
+ X*:$i:*) val=`echo $val | sed -e "s=:$i:=:="` ;;
+ X$i:*) val=${val#$i:} ;;
+ X*:$i) val=${val%:$i} ;;
esac
new=$new:$i change=t
done
case $dir in
- l) val=${new#:}:$val;;
- r) val=$val$new;;
+ l) val=${new#:}:$val ;;
+ r) val=$val$new ;;
esac
case $change in t) export $var="$val" ;; esac
}
-# --- Set the path variable ---
+## __mdw_programp NAME
+##
+## Does NAME exist as an executable program?
+__mdw_programp () { type -t >/dev/null "$1"; }
+
+###--------------------------------------------------------------------------
+### Other preliminaries.
+
+## Work out my home directory.
+##
+## This horrible trick resolves symbolic links. It enables resolving links,
+## changes directory and displays the name of the directory in a subshell to
+## avoid changing the current state.
+HOME=`(set -P; cd $HOME; pwd)`
+cd $HOME
+
+## Establish a temporary directory.
+[ "$TMPDIR" ] || eval `tmpdir -b`
+export TMP=$TMPDIR
+
+## CDE's session structure is demented and doesn't leave us with a proper
+## logout hook, so synthesize one here.
+[ -n "$DT" ] && trap "source $HOME/.bash_logout" EXIT
+
+###--------------------------------------------------------------------------
+### Set some basic paths.
+## The main path.
__mdw_addto PATH l \
$HOME/bin \
{,/usr{,/local}{,/X11R6}}{/bin,/sbin,/games} \
/opt/nfast{,/gcc}{/bin,/sbin} \
$HOME/src/ncipher/scripts
+
+## If we have Plan 9 from User Space, then add that in.
if [ -d /usr/local/plan9 ]; then
export PLAN9=/usr/local/plan9
__mdw_addto PATH r \
$PLAN9/bin
fi
-# --- Find whether a program exists ---
-
-__mdw_programp () { type -t >/dev/null "$1"; }
+## Search for `info' documents.
+__mdw_addto INFOPATH r \
+ $HOME/info \
+ /usr/info /usr/share/info \
+ /usr/local/info /usr/local/share/info \
+ /usr/local/share/info/its
-# --- And the same for manual pages ---
+## Script libraries.
+__mdw_addto PERLLIB r $HOME/lib/perl
+__mdw_addto PYTHONPATH r $HOME/lib/python
-case "$MACHTIME" in
- *linux*)
- MANPATH=`manpath -q`
- ;;
-esac
-__mdw_addto MANPATH l \
- {/usr{,/local}{,/X11R6}{,/share}}/{man,catman} \
- $HOME/man
+###--------------------------------------------------------------------------
+### Various other kinds of configuration.
-# --- Where my mail comes from ---
+## Sensible umask if users have their own groups.
+umask 002
+## Mail and general identification.
export MAIL=`mdw-conf mailbox`
export NAME="Mark Wooding"
export EMAIL=`mdw-conf email`
export QMAILINJECT=c
-# --- Find a text editor ---
+## Some programs want to know the hostname.
+[ -z "$HOST" ] && export HOST=`hostname`
+## Text editor configuration.
export MDW_EDITOR=ed
emacs_startup_args="--no-site-file --mdw-fast-startup -nw"
for ed in \
break
fi
done
-
export EDITOR=mdw-editor VISUAL=mdw-editor
-# --- Various options for programs ---
-
-umask 002
-
-[ -z "$HOST" ] && export HOST=`hostname`
-
+## Determine the locale settings. Really don't set LC_COLLATE because it
+## messes with the order of files in `ls' listings and similar.
if [ "$DISPLAY" != "" ]; then
LANG=`mdw-conf x-ctype`
else
unset LC_ALL
export LC_COLLATE=POSIX LANG
-__mdw_programp distcc && export CCACHE_PREFIX=distcc
-
-export TEXINPUTS=".:$HOME/lib/tex//:"
-
-__mdw_addto INFOPATH r \
- $HOME/info \
- /usr/info /usr/share/info \
- /usr/local/info /usr/local/share/info \
- /usr/local/share/info/its
-__mdw_addto PERLLIB r $HOME/lib/perl
-__mdw_addto PYTHONPATH r $HOME/lib/python
-
-export __MDW_ROOTLY=`mdw-conf rootly`
-
-[ -z "$LS_OPTIONS" ] && export LS_OPTIONS="-F"
-
-export BASCAT="-l +n"
-
-export CVS_RSH=ssh
-export CVSROOT=`mdw-conf cvs-root`
-export SVNROOT=`mdw-conf svn-root`
-export P4CONFIG=.p4
-
-export BECOME="--preserve-environment"
-
+## Pager configuration.
export MDW_PAGER=`type -p less` PAGER=mdw-pager METAMAIL_PAGER=mdw-pager
export LESS="-iqgRh1FX"
export LESSOPEN="|lesspipe.sh %s"
esac
export LESSCHARSET
__mdw_programp global && export LESSGLOBALTAGS=global
-export NCURSES_NO_UTF8_ACS=1
-# export MAKEFLAGS="-j4"
-[ "$TMPDIR" ] || eval `tmpdir -b`
-export TMP=$TMPDIR
-export PERL_READLINE_NOWARN=yes
-
-[ -z "$NNTPSERVER" ] && export NNTPSERVER=`mdw-conf nntp-server`
+## HTTP and FTP proxies.
http=`mdw-conf http-proxy none`
case "${http_proxy-none},$http" in
*,none) ;;
none,*,*) export ftp_proxy=http://$ftp/ ;;
esac
+## Ncurses programs should use the Unicode box-drawing characters because the
+## alternative character set stuff isn't supported well.
+export NCURSES_NO_UTF8_ACS=1
+
+## Shut up Perl's readline machinery.
+export PERL_READLINE_NOWARN=yes
+
+## If we have `distcc' then tell `ccache' to use it.
+__mdw_programp distcc && export CCACHE_PREFIX=distcc
+
+## Acquiring root privileges. This is mainly the job of `bashrc', but we
+## cache the mechanism here.
+export __MDW_ROOTLY=`mdw-conf rootly`
+export BECOME="--preserve-environment"
+
+## It's useful to see the little sigils in `ls'.
+[ -z "$LS_OPTIONS" ] && export LS_OPTIONS="-F"
+
+## Settings for BBC BASIC listing.
+export BASCAT="-l +n"
+
+## Version control hacking.
+export CVS_RSH=ssh
+export CVSROOT=`mdw-conf cvs-root`
+export SVNROOT=`mdw-conf svn-root`
+export P4CONFIG=.p4
+
+## News server.
+[ -z "$NNTPSERVER" ] && export NNTPSERVER=`mdw-conf nntp-server`
+
+## Help X programs find their resources.
export XUSERFILESEARCHPATH="$HOME/.Xapps/%N:/usr/lib/X11/%T/%N%S"
+## Make OpenOffice.org do its thing properly.
export OOO_FORCE_DESKTOP=gnome
+## Configure `ps'.
export PS_PERSONALITY=gnu
-export NC_SITES=cam:bos
-
-# -- Disable core dumps ---
-
+## Disable core dumps.
ulimit -S -c 0
-# --- Start an ssh authentication agent ---
+###--------------------------------------------------------------------------
+### Authentication and SSH hacking.
+## Start an authentication agent. This is unnecessarily fiddly. If there's
+## a Gnome keyring server then we should use that; unfortunately, it may not
+## yet have had a chance to populate the environment with its settings, so we
+## go off and fetch them.
if { { [ "$GNOME_KEYRING_CONTROL" ] &&
[ -s "$GNOME_KEYRING_CONTROL" ]; } ||
{ [ "$DBUS_SESSION_BUS_ADDRESS" ] &&
export SSH_AUTH_SOCK
fi
+## If we still don't have an agent then start one with a stable name.
eval `start-ssh-agent -b`
+## Decide whether this session should be considered `secure'. A session is
+## secure if it's on a secure TTY, but there are lots of ways of finding out
+## which TTYs are secure.
if [ -z "$__mdw_bashrc" ] && [ "$__mdw_force_secure_session" = "yes" ] ||
( tty="`tty`" devtty="(/dev/)?${tty#/dev/}"
{ { { [ -e /etc/securetty ] && sectty=/etc/securetty; } ||
export __mdw_sechost="`hostname`"
fi
-[ -n "$DT" ] && trap "source $HOME/.bash_logout" EXIT
-
-# --- And a passphrase pixie ---
-
+## Start a passphrase pixie if there is one and it's not already running.
if pixie --version >/dev/null 2>&1; then
mkdir -p $HOME/.catacomb
pixie=${CATACOMB_PIXIE-$HOME/.catacomb/pixie}
fi
fi
+###--------------------------------------------------------------------------
+### Finishing touches.
+
+## If there's a local hook then run it.
[ -f "$HOME/.profile-local" ] && . "$HOME/.profile-local"
+## End of the `__mdw_profile' guard.
fi
-# --- Now, if my .bashrc hasn't been run yet, run it ---
-#
-# Oh, don't do that if we don't have a terminal.
-
+## If we haven't run the `.bashrc' yet, and this shell is interactive, then
+## run it now.
[ -z "$__mdw_bashrc" ] && [ -t 0 ] && \
[ -r $HOME/.bashrc ] && . $HOME/.bashrc
+
+###----- That's all, folks --------------------------------------------------
~mdw / profile / blobdiff