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 ###--------------------------------------------------------------------------
24 case $t in t) ;; *) echo >&2 "unknown hook \`$hk'"; return 2; esac
29 *) eval "$hk=\${$hk:+\$$hk }\$fn" ;;
34 local hk=$1 fn=$2 t l r
37 case $t in t) ;; *) echo >&2 "unknown hook \`$hk'"; return 2; esac
42 l=${t%% $fn*} r=${t##*$fn }
44 eval "$hk=\$l\${l:+ }\$r"
49 __mdw_setrc () { return $1; }
52 local hk=$1 saverc=$? t i; shift
55 case $t in t) ;; *) echo >&2 "unknown hook \`$hk'"; return 2; esac
58 for i in $t; do __mdw_setrc $saverc; "$i" "$@"; done
61 ###--------------------------------------------------------------------------
64 __mdw_set_prompt_hacks () { host=$(hostname); dir=""; }
66 __mdw_set_prompt_pieces () {
70 ## Fancy highlighting in some terminals.
71 local bold unbold nl gitcolour rccolour uncolour
73 bold="" unbold="" nl="" gitcolour="" rccolour="" uncolour="" more=""
74 __mdw_set_prompt_hacks
76 ## Choose the right delimiters. Highlight root prompts specially;
77 ## highlight when I'm running as some other user. Highlight when this
78 ## isn't the outermost shell on the terminal.
79 local left right user u tty
80 user=${USER-${LOGNAME-$(id -un)}}
83 left=$(echo « | iconv -f UTF-8 -t //translit)
84 right=$(echo » | iconv -f UTF-8 -t //translit)
88 mdw | mwooding | nemo) u="" left="[" right="]" ;;
89 *) u="$user@" left="{" right="}" ;;
93 "$tty") left="<" right=">" ;;
94 *) __mdw_tty=$tty; export __mdw_tty ;;
99 ## If this session is insecure then highlight that.
102 case ${SSH_CLIENT-nil},${SCHROOT_CHROOT_NAME-nil},$__mdw_sechost in
103 nil,nil,"$h") sec_l="" sec_r="" ;;
104 nil,nil,*) sec_l="(" sec_r=")" ;;
108 ## If this is an schroot environment or some other interesting augmented
109 ## environment then point this out.
110 hqual="$hqual${SCHROOT_CHROOT_NAME+/$SCHROOT_CHROOT_NAME}"
111 hqual="$hqual${CROSS_BUILDENV+/$CROSS_BUILDENV}"
113 ## Put together the main pieces.
114 __mdw_prompt_left="$nl$bold$left$sec_l$u$host$hqual$sec_r$dir"
115 __mdw_prompt_git_left="$unbold$gitcolour"
116 __mdw_prompt_git_right="$uncolour$bold"
117 __mdw_prompt_rc_left="$unbold$rccolour"
118 __mdw_prompt_rc_right="$uncolour$bold"
119 __mdw_prompt_right="$right$unbold"
120 __mdw_prompt_more=" $more$bold>$unbold "
123 __mdw_set_prompt () {
124 case "${TERM-dumb}:${INSIDE_EMACS+$INSIDE_EMACS}" in
126 case $(id -u) in 0) PS1='# ' ;; *) PS1='$ ' ;; esac
132 if type __git_ps1 >/dev/null 2>&1; then
133 git="$__mdw_prompt_git_left$(__git_ps1)$__mdw_prompt_git_right"
137 case $__mdw_last_rc in
139 *) rc="$__mdw_prompt_rc_left rc=$__mdw_last_rc$__mdw_prompt_rc_right" ;;
141 PS1="$__mdw_prompt_left$git$rc$__mdw_prompt_right"
142 PS2="$PS1$__mdw_prompt_more"
148 __mdw_screen_precmd () { printf "
\ek%s
\e\\" "$__mdw_shell"; }
149 __mdw_screen_preexec () { printf "
\ek%s
\e\\" "$1"; }
152 case ${STY+t},${__mdw_precmd_hook+t},${__mdw_preexec_hook+t} in
154 __mdw_addhook __mdw_precmd_hook __mdw_screen_precmd
155 __mdw_addhook __mdw_preexec_hook __mdw_screen_preexec
158 case ${__mdw_precmd_hook+t} in
159 t) __mdw_addhook __mdw_precmd_hook __mdw_set_prompt ;;
163 ###--------------------------------------------------------------------------
164 ### Some handy aliases.
167 alias which="command -v"
170 case $# in 0) set -- "${SHELL-/bin/sh}" ;; esac
174 alias re="rootly $EDITOR"
175 alias pstree="pstree -hl"
176 alias cdtmp='cd ${TMPDIR-/tmp}'
177 alias pushtmp='pushd ${TMPDIR-/tmp}'
179 alias svn="svnwrap svn"
181 alias make="nice make"
184 ###--------------------------------------------------------------------------
187 ## Arrange for `ls' output to be in colour.
188 if __mdw_programp dircolors; then eval $(dircolors -b "$HOME/.dircolors")
189 else unset LS_COLORS; fi
191 unalias ls 2>/dev/null || :
193 if [ -t 1 ]; then command ls $LS_OPTIONS ${LS_COLORS+--color=auto} "$@"
194 else command ls "$@"; fi
197 ## Arrange for `grep' output to be in colour.
198 export GREP_COLORS="mt=01;31:ms=01;31:mc=031;31:fn=36:ln=36:bn=36:se=34"
203 command $grep ${GREP_COLORS+--color=always} "$@" | mdw-pager
208 alias grep="greplike grep"
209 alias egrep="greplike egrep"
210 alias fgrep="greplike fgrep"
211 alias zgrep="greplike zgrep"
213 ## Arrange for `diff' output to be in colour.
214 export DIFF_COLORS="hd=1:ln=36:ad=32:de=31"
219 ${DIFF_COLORS+--color=always} \
220 ${DIFF_COLORS+--palette="$DIFF_COLORS"} \
223 command $diff "$@" | cat
226 alias diff="difflike diff"
228 ###--------------------------------------------------------------------------
231 ## Turn off pagers inside Emacs shell buffers.
232 case "$INSIDE_EMACS" in
233 2[2-9].*,comint | [3-9][0-9].*,comint) export PAGER=cat ;;
236 ###--------------------------------------------------------------------------
237 ### More complicated shell functions.
239 ## xt [@HOST] XTERM-ARGS
241 ## Open a terminal, maybe on a remote host.
245 local remote=${1#@} title
247 if [ $# -gt 0 ]; then
248 title="xterm [$remote] $1"
250 title="xterm [$remote]"
252 (xterm -title "$title" -e ssh $remote "$@" &)
262 ## Tweak core dumps on and off, or show the current status.
265 xon|xy|xyes) ulimit -Sc $(ulimit -Hc) ;;
266 xoff|xn|xno) ulimit -Sc 0 ;;
268 local l=$(ulimit -Sc)
270 0) echo "Core dumps disabled" ;;
271 unlimited) echo "Core dumps enabled" ;;
272 *) echo "Core dump limit is $l blocks" ;;
276 echo >&2 "usage: core [y|n]"
284 ## Set current security world to NAME. With no NAME, print the currently
287 local nfast=${NFAST_HOME-/opt/nfast}
291 echo "${NFAST_KMDATA#$nfast/kmdata-}"
296 elif [ -d "$nfast/kmdata-$1" ]; then
297 kmdata=$nfast/kmdata-$1
299 echo >&2 "world: can't find world $1"
304 0) export NFAST_KMDATA=$kmdata ;;
311 ## path-add [VAR] DIR
313 ## Add DIR to the beginning of PATH-like variable VAR (defaults to PATH) if
314 ## it's not there already.
316 local pathvar export dir val
318 1) pathvar=PATH dir=$1 export="export PATH" ;;
319 2) pathvar=$1 dir=$2 export=: ;;
320 *) echo >&2 "Usage: $0 [VAR] DIR"; return 1 ;;
331 ## path-remove [VAR] DIR
333 ## Remove DIR from PATH-like variable VAR (defaults to PATH); it's not an
334 ## error if DIR isn't in VAR.
336 local pathvar export dir val
338 1) pathvar=PATH dir=$1 export="export PATH" ;;
339 2) pathvar=$1 dir=$2 export=: ;;
340 *) echo >&2 "Usage: $0 [VAR] DIR"; return 1 ;;
345 :"$dir":*) val=${val#$dir:} ;;
346 *:"$dir":) val=${val%:$dir} ;;
347 *:"$dir":*) val=${val%%:$dir:*}:${val#*:$dir:} ;;
353 ## pathhack [-f] +HACK|-HACK...
355 ## Each HACK refers to a subdirectory of `~/bin/hacks'. A hack name preceded
356 ## by `+' adds the directory to the PATH; a `-' removes. Adding a hack
357 ## that's already on the PATH doesn't do anything unless `-f' is set, in
358 ## which case it gets moved to the beginning. With no arguments, print the
359 ## currently installed hacks.
361 local p e force arg hack dir
363 if [ $# -eq 0 ]; then
366 case "$e" in "$HOME/bin/hacks/"*) echo ${e#$HOME/bin/hacks/} ;; esac
367 case "$p" in *:*) p=${p#*:} ;; *) break ;; esac
372 while [ $# -gt 0 ]; do
375 -f | --force) force=t; shift; continue ;;
381 dir=$HOME/bin/hacks/$hack
382 if ! [ -d "$dir" ]; then
383 echo "$0: path hack $hack not found"
386 case "$arg,$force,:$PATH:" in
387 -*,*,*:"$dir":*) path_remove p "$dir" ;;
388 +*,t,*:"$dir":*) path_remove p "$dir"; path_add p "$dir" ;;
389 +*,nil,*:"$dir":*) ;;
390 +*,*) path_add p "$dir" ;;
394 if [ $# -eq 0 ]; then PATH=$p; export PATH
395 else PATH=$p "$@"; fi
398 ###--------------------------------------------------------------------------
399 ### Finishing touches.
401 ## Make sure `$HOME/bin' is on the path.
404 ## Set the temporary directory again. (A setuid or setgid program may have
405 ## unhelpfully forgotten this for us.)
408 *) if __mdw_programp tmpdir; then eval $(tmpdir -b); fi ;;
411 ## For `root' use -- some simple molly-guards.
414 alias rm="rm -i" cp="cp -i" mv="mv -i"
419 ## Run any local hooks.
420 __mdw_source_if_exists "$HOME/.shell-local"
422 ###----- That's all, folks --------------------------------------------------