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 ## Set the temporary directory again. (A setuid or setgid program may have
18 ## unhelpfully forgotten this for us.)
19 case ${TMPDIR+t} in t) ;; *) eval $(tmpdir -b); esac
21 ###--------------------------------------------------------------------------
24 __mdw_set_prompt_hacks () { host=$(hostname); dir=""; }
26 __mdw_set_prompt_pieces () {
30 ## Fancy highlighting in some terminals.
31 local bold unbold nl gitcolour rccolour uncolour
33 bold="" unbold="" nl="" gitcolour="" rccolour="" uncolour=""
34 __mdw_set_prompt_hacks
36 ## Choose the right delimiters. Highlight root prompts specially;
37 ## highlight when I'm running as some other user. Highlight when this
38 ## isn't the outermost shell on the terminal.
39 local left right user u tty
40 user=${USER-${LOGNAME-$(id -un)}}
43 left=$(echo « | iconv -f UTF-8 -t //translit)
44 right=$(echo » | iconv -f UTF-8 -t //translit)
48 mdw | mwooding | nemo) u="" left="[" right="]" ;;
49 *) u="$user@" left="{" right="}" ;;
53 "$tty") left="<" right=">" ;;
54 *) __mdw_tty=$tty; export __mdw_tty ;;
59 ## If this session is insecure then highlight that.
62 case ${SSH_CLIENT-nil},${SCHROOT_CHROOT_NAME-nil},$__mdw_sechost in
63 nil,nil,"$h") sec_l="" sec_r="" ;;
64 nil,nil,*) sec_l="(" sec_r=")" ;;
68 ## If this is an schroot environment then point this out.
69 hqual="$hqual${SCHROOT_CHROOT_NAME+/$SCHROOT_CHROOT_NAME}"
71 ## Put together the main pieces.
72 __mdw_prompt_left="$nl$bold$left$sec_l$u$host$hqual$sec_r$dir"
73 __mdw_prompt_git_left="$unbold$gitcolour"
74 __mdw_prompt_git_right="$uncolour$bold"
75 __mdw_prompt_rc_left="$unbold$rccolour"
76 __mdw_prompt_rc_right="$uncolour$bold"
77 __mdw_prompt_right="$right$unbold"
83 if type __git_ps1 >/dev/null 2>&1; then
84 git="$__mdw_prompt_git_left$(__git_ps1)$__mdw_prompt_git_right"
88 case $__mdw_last_rc in
90 *) rc="$__mdw_prompt_rc_left rc=$__mdw_last_rc$__mdw_prompt_rc_right" ;;
92 PS1="$__mdw_prompt_left$git$rc$__mdw_prompt_right"
93 PS2="$PS1 $bold>$unbold "
100 t) printf "
\ek%s
\e\\" "$__mdw_shell" ;;
106 t) printf "
\ek%s
\e\\" "$1" ;;
110 ###--------------------------------------------------------------------------
111 ### Some handy aliases.
114 alias which="command -v"
117 case $# in 0) set -- "${SHELL-/bin/sh}" ;; esac
121 alias re="rootly $EDITOR"
122 alias pstree="pstree -hl"
123 alias cdtmp='cd ${TMPDIR-/tmp}'
124 alias pushtmp='pushd ${TMPDIR-/tmp}'
126 alias svn="svnwrap svn"
129 ###--------------------------------------------------------------------------
132 ## Arrange for `ls' output to be in colour.
133 if __mdw_programp dircolors; then eval $(dircolors -b "$HOME/.dircolors")
134 else unset LS_COLORS; fi
136 unalias ls 2>/dev/null || :
138 if [ -t 1 ]; then command ls $LS_OPTIONS ${LS_COLORS+--color=auto} "$@"
139 else command ls "$@"; fi
142 ## Arrange for `grep' output to be in colour.
143 export GREP_COLORS="mt=01;31:ms=01;31:mc=031;31:fn=36:ln=36:bn=36:se=34"
148 command $grep ${GREP_COLORS+--color=always} "$@" | mdw-pager
153 alias grep="greplike grep"
154 alias egrep="greplike egrep"
155 alias fgrep="greplike fgrep"
156 alias zgrep="greplike zgrep"
158 ###--------------------------------------------------------------------------
161 ## Turn off pagers inside Emacs shell buffers.
162 case "$INSIDE_EMACS" in
163 2[2-9].*,comint | [3-9][0-9].*,comint) export PAGER=cat ;;
166 ###--------------------------------------------------------------------------
167 ### More complicated shell functions.
169 ## xt [@HOST] XTERM-ARGS
171 ## Open a terminal, maybe on a remote host.
175 local remote=${1#@} title
177 if [ $# -gt 0 ]; then
178 title="xterm [$remote] $1"
180 title="xterm [$remote]"
182 (xterm -title "$title" -e ssh $remote "$@" &)
192 ## Tweak core dumps on and off, or show the current status.
195 xon|xy|xyes) ulimit -Sc $(ulimit -Hc) ;;
196 xoff|xn|xno) ulimit -Sc 0 ;;
198 local l=$(ulimit -Sc)
200 0) echo "Core dumps disabled" ;;
201 unlimited) echo "Core dumps enabled" ;;
202 *) echo "Core dump limit is $l blocks" ;;
206 echo >&2 "usage: core [y|n]"
214 ## Set current security world to NAME. With no NAME, print the currently
217 local nfast=${NFAST_HOME-/opt/nfast}
221 echo "${NFAST_KMDATA#$nfast/kmdata-}"
226 elif [ -d "$nfast/kmdata-$1" ]; then
227 kmdata=$nfast/kmdata-$1
229 echo >&2 "world: can't find world $1"
234 0) export NFAST_KMDATA=$kmdata ;;
241 ## path-add [VAR] DIR
243 ## Add DIR to the beginning of PATH-like variable VAR (defaults to PATH) if
244 ## it's not there already.
246 local pathvar export dir val
248 1) pathvar=PATH dir=$1 export="export PATH" ;;
249 2) pathvar=$1 dir=$2 export=: ;;
250 *) echo >&2 "Usage: $0 [VAR] DIR"; return 1 ;;
261 ## path-remove [VAR] DIR
263 ## Remove DIR from PATH-like variable VAR (defaults to PATH); it's not an
264 ## error if DIR isn't in VAR.
266 local pathvar export dir val
268 1) pathvar=PATH dir=$1 export="export PATH" ;;
269 2) pathvar=$1 dir=$2 export=: ;;
270 *) echo >&2 "Usage: $0 [VAR] DIR"; return 1 ;;
275 :"$dir":*) val=${val#$dir:} ;;
276 *:"$dir":) val=${val%:$dir} ;;
277 *:"$dir":*) val=${val%%:$dir:*}:${val#*:$dir:} ;;
283 ## pathhack [-f] +HACK|-HACK...
285 ## Each HACK refers to a subdirectory of `~/bin/hacks'. A hack name preceded
286 ## by `+' adds the directory to the PATH; a `-' removes. Adding a hack
287 ## that's already on the PATH doesn't do anything unless `-f' is set, in
288 ## which case it gets moved to the beginning. With no arguments, print the
289 ## currently installed hacks.
291 local p e force arg hack dir
293 if [ $# -eq 0 ]; then
296 case "$e" in "$HOME/bin/hacks/"*) echo ${e#$HOME/bin/hacks/} ;; esac
297 case "$p" in *:*) p=${p#*:} ;; *) break ;; esac
302 while [ $# -gt 0 ]; do
305 -f | --force) force=t; shift; continue ;;
311 dir=$HOME/bin/hacks/$hack
312 if ! [ -d "$dir" ]; then
313 echo "$0: path hack $hack not found"
316 case "$arg,$force,:$PATH:" in
317 -*,*,*:"$dir":*) path_remove p "$dir" ;;
318 +*,t,*:"$dir":*) path_remove p "$dir"; path_add p "$dir" ;;
319 +*,nil,*:"$dir":*) ;;
320 +*,*) path_add p "$dir" ;;
324 if [ $# -eq 0 ]; then PATH=$p; export PATH
325 else PATH=$p "$@"; fi
328 ###--------------------------------------------------------------------------
329 ### Finishing touches.
331 ## For `root' use -- some simple molly-guards.
334 alias rm="rm -i" cp="cp -i" mv="mv -i"
339 ## Run any local hooks.
340 __mdw_source_if_exists "$HOME/.shell-local"
342 ###----- That's all, folks --------------------------------------------------