3 ### Common per-shell configuration.
5 ###--------------------------------------------------------------------------
8 __mdw_programp () { type >/dev/null 2>&1 "$1"; }
10 __mdw_source_if_exists () {
13 if [ -r "$i" ]; then . "$i"; fi
17 ###--------------------------------------------------------------------------
20 __mdw_set_prompt_hacks () { host=$(hostname); dir=""; }
22 __mdw_set_prompt_pieces () {
26 ## Fancy highlighting in some terminals.
27 local bold unbold nl gitcolour rccolour uncolour
29 bold="" unbold="" nl="" gitcolour="" rccolour="" uncolour=""
30 __mdw_set_prompt_hacks
32 ## Choose the right delimiters. Highlight root prompts specially;
33 ## highlight when I'm running as some other user. Highlight when this
34 ## isn't the outermost shell on the terminal.
35 local left right user u tty
36 user=${USER-${LOGNAME-$(id -un)}}
39 left=$(echo « | iconv -f UTF-8 -t //translit)
40 right=$(echo » | iconv -f UTF-8 -t //translit)
44 mdw | mwooding | nemo) u="" left="[" right="]" ;;
45 *) u="$user@" left="{" right="}" ;;
49 "$tty") left="<" right=">" ;;
50 *) __mdw_tty=$tty; export __mdw_tty ;;
55 ## If this session is insecure then highlight that.
58 case ${SSH_CLIENT-nil},${SCHROOT_CHROOT_NAME-nil},$__mdw_sechost in
59 nil,nil,"$h") sec_l="" sec_r="" ;;
60 nil,nil,*) sec_l="(" sec_r=")" ;;
64 ## If this is an schroot environment then point this out.
65 hqual="$hqual${SCHROOT_CHROOT_NAME+/$SCHROOT_CHROOT_NAME}"
67 ## Put together the main pieces.
68 __mdw_prompt_left="$nl$bold$left$sec_l$u$host$hqual$sec_r$dir"
69 __mdw_prompt_git_left="$unbold$gitcolour"
70 __mdw_prompt_git_right="$uncolour$bold"
71 __mdw_prompt_rc_left="$unbold$rccolour"
72 __mdw_prompt_rc_right="$uncolour$bold"
73 __mdw_prompt_right="$right$unbold"
79 case $(id -u) in 0) PS1='# ' ;; *) PS1='$ ' ;; esac
85 if type __git_ps1 >/dev/null 2>&1; then
86 git="$__mdw_prompt_git_left$(__git_ps1)$__mdw_prompt_git_right"
90 case $__mdw_last_rc in
92 *) rc="$__mdw_prompt_rc_left rc=$__mdw_last_rc$__mdw_prompt_rc_right" ;;
94 PS1="$__mdw_prompt_left$git$rc$__mdw_prompt_right"
95 PS2="$PS1 $bold>$unbold "
104 t) printf "
\ek%s
\e\\" "$__mdw_shell" ;;
110 t) printf "
\ek%s
\e\\" "$1" ;;
114 ###--------------------------------------------------------------------------
115 ### Some handy aliases.
118 alias which="command -v"
121 case $# in 0) set -- "${SHELL-/bin/sh}" ;; esac
125 alias re="rootly $EDITOR"
126 alias pstree="pstree -hl"
127 alias cdtmp='cd ${TMPDIR-/tmp}'
128 alias pushtmp='pushd ${TMPDIR-/tmp}'
130 alias svn="svnwrap svn"
133 ###--------------------------------------------------------------------------
136 ## Arrange for `ls' output to be in colour.
137 if __mdw_programp dircolors; then eval $(dircolors -b "$HOME/.dircolors")
138 else unset LS_COLORS; fi
140 unalias ls 2>/dev/null || :
142 if [ -t 1 ]; then command ls $LS_OPTIONS ${LS_COLORS+--color=auto} "$@"
143 else command ls "$@"; fi
146 ## Arrange for `grep' output to be in colour.
147 export GREP_COLORS="mt=01;31:ms=01;31:mc=031;31:fn=36:ln=36:bn=36:se=34"
152 command $grep ${GREP_COLORS+--color=always} "$@" | mdw-pager
157 alias grep="greplike grep"
158 alias egrep="greplike egrep"
159 alias fgrep="greplike fgrep"
160 alias zgrep="greplike zgrep"
162 ###--------------------------------------------------------------------------
165 ## Turn off pagers inside Emacs shell buffers.
166 case "$INSIDE_EMACS" in
167 2[2-9].*,comint | [3-9][0-9].*,comint) export PAGER=cat ;;
170 ###--------------------------------------------------------------------------
171 ### More complicated shell functions.
173 ## xt [@HOST] XTERM-ARGS
175 ## Open a terminal, maybe on a remote host.
179 local remote=${1#@} title
181 if [ $# -gt 0 ]; then
182 title="xterm [$remote] $1"
184 title="xterm [$remote]"
186 (xterm -title "$title" -e ssh $remote "$@" &)
196 ## Tweak core dumps on and off, or show the current status.
199 xon|xy|xyes) ulimit -Sc $(ulimit -Hc) ;;
200 xoff|xn|xno) ulimit -Sc 0 ;;
202 local l=$(ulimit -Sc)
204 0) echo "Core dumps disabled" ;;
205 unlimited) echo "Core dumps enabled" ;;
206 *) echo "Core dump limit is $l blocks" ;;
210 echo >&2 "usage: core [y|n]"
218 ## Set current security world to NAME. With no NAME, print the currently
221 local nfast=${NFAST_HOME-/opt/nfast}
225 echo "${NFAST_KMDATA#$nfast/kmdata-}"
230 elif [ -d "$nfast/kmdata-$1" ]; then
231 kmdata=$nfast/kmdata-$1
233 echo >&2 "world: can't find world $1"
238 0) export NFAST_KMDATA=$kmdata ;;
245 ## path-add [VAR] DIR
247 ## Add DIR to the beginning of PATH-like variable VAR (defaults to PATH) if
248 ## it's not there already.
250 local pathvar export dir val
252 1) pathvar=PATH dir=$1 export="export PATH" ;;
253 2) pathvar=$1 dir=$2 export=: ;;
254 *) echo >&2 "Usage: $0 [VAR] DIR"; return 1 ;;
265 ## path-remove [VAR] DIR
267 ## Remove DIR from PATH-like variable VAR (defaults to PATH); it's not an
268 ## error if DIR isn't in VAR.
270 local pathvar export dir val
272 1) pathvar=PATH dir=$1 export="export PATH" ;;
273 2) pathvar=$1 dir=$2 export=: ;;
274 *) echo >&2 "Usage: $0 [VAR] DIR"; return 1 ;;
279 :"$dir":*) val=${val#$dir:} ;;
280 *:"$dir":) val=${val%:$dir} ;;
281 *:"$dir":*) val=${val%%:$dir:*}:${val#*:$dir:} ;;
287 ## pathhack [-f] +HACK|-HACK...
289 ## Each HACK refers to a subdirectory of `~/bin/hacks'. A hack name preceded
290 ## by `+' adds the directory to the PATH; a `-' removes. Adding a hack
291 ## that's already on the PATH doesn't do anything unless `-f' is set, in
292 ## which case it gets moved to the beginning. With no arguments, print the
293 ## currently installed hacks.
295 local p e force arg hack dir
297 if [ $# -eq 0 ]; then
300 case "$e" in "$HOME/bin/hacks/"*) echo ${e#$HOME/bin/hacks/} ;; esac
301 case "$p" in *:*) p=${p#*:} ;; *) break ;; esac
306 while [ $# -gt 0 ]; do
309 -f | --force) force=t; shift; continue ;;
315 dir=$HOME/bin/hacks/$hack
316 if ! [ -d "$dir" ]; then
317 echo "$0: path hack $hack not found"
320 case "$arg,$force,:$PATH:" in
321 -*,*,*:"$dir":*) path_remove p "$dir" ;;
322 +*,t,*:"$dir":*) path_remove p "$dir"; path_add p "$dir" ;;
323 +*,nil,*:"$dir":*) ;;
324 +*,*) path_add p "$dir" ;;
328 if [ $# -eq 0 ]; then PATH=$p; export PATH
329 else PATH=$p "$@"; fi
332 ###--------------------------------------------------------------------------
333 ### Finishing touches.
335 ## Make sure `$HOME/bin' is on the path.
338 ## Set the temporary directory again. (A setuid or setgid program may have
339 ## unhelpfully forgotten this for us.)
342 *) if __mdw_programp tmpdir; then eval $(tmpdir -b); fi ;;
345 ## For `root' use -- some simple molly-guards.
348 alias rm="rm -i" cp="cp -i" mv="mv -i"
353 ## Run any local hooks.
354 __mdw_source_if_exists "$HOME/.shell-local"
356 ###----- That's all, folks --------------------------------------------------