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74a53e28 MW |
1 | ### -*-sh-*- |
2 | ### | |
3 | ### Common per-shell configuration. | |
4 | ||
5 | ###-------------------------------------------------------------------------- | |
6 | ### Utilities. | |
7 | ||
8 | __mdw_programp () { type >/dev/null 2>&1 "$1"; } | |
9 | ||
10 | __mdw_source_if_exists () { | |
11 | local i | |
12 | for i in "$@"; do | |
13 | if [ -r "$i" ]; then . "$i"; fi | |
14 | done | |
15 | } | |
16 | ||
4877b8d8 MW |
17 | ###-------------------------------------------------------------------------- |
18 | ### Hooks. | |
19 | ||
20 | __mdw_addhook () { | |
21 | local hk=$1 fn=$2 t | |
22 | ||
23 | eval t=\${$hk+t} | |
24 | case $t in t) ;; *) echo >&2 "unknown hook \`$hk'"; return 2; esac | |
25 | ||
26 | eval t=\$$hk | |
27 | case " $t " in | |
28 | *" $fn "*) ;; | |
29 | *) eval "$hk=\${$hk:+\$$hk }\$fn" ;; | |
30 | esac | |
31 | } | |
32 | ||
33 | __mdw_delhook () { | |
34 | local hk=$1 fn=$2 t l r | |
35 | ||
36 | eval t=\${$hk+t} | |
37 | case $t in t) ;; *) echo >&2 "unknown hook \`$hk'"; return 2; esac | |
38 | ||
39 | eval t=\" \$$hk \" | |
40 | case $t in | |
41 | *" $fn "*) | |
42 | l=${t%% $fn*} r=${t##*$fn } | |
43 | l=${l# } r=${r% } | |
44 | eval "$hk=\$l\${l:+ }\$r" | |
45 | ;; | |
46 | esac | |
47 | } | |
48 | ||
49 | __mdw_setrc () { return $1; } | |
50 | ||
51 | __mdw_runhook () { | |
52 | local hk=$1 saverc=$? t i; shift | |
53 | ||
54 | eval t=\${$hk+t} | |
55 | case $t in t) ;; *) echo >&2 "unknown hook \`$hk'"; return 2; esac | |
56 | ||
57 | eval t=\$$hk | |
58 | for i in $t; do __mdw_setrc $saverc; "$i" "$@"; done | |
59 | } | |
60 | ||
74a53e28 MW |
61 | ###-------------------------------------------------------------------------- |
62 | ### Prompt machinery. | |
63 | ||
2bbac58c | 64 | __mdw_host=$(hostname) |
d4bbc0c0 MW |
65 | __mdw_hqual= |
66 | __mdw_hqual=$__mdw_hqual${SCHROOT_CHROOT_NAME+/$SCHROOT_CHROOT_NAME} | |
67 | __mdw_hqual=$__mdw_hqual${CROSS_BUILDENV+/$CROSS_BUILDENV} | |
2bbac58c | 68 | __mdw_set_prompt_hacks () { host=$__mdw_host; dir=""; } |
74a53e28 | 69 | |
08785e51 | 70 | __mdw_system=$(uname -s) |
c35d2efc | 71 | : ${USER-${LOGNAME-$(id -un)}} |
85e5c878 | 72 | __mdw_user=$USER |
c35d2efc | 73 | |
fde3353f | 74 | case $(id -u) in |
08785e51 MW |
75 | 0) |
76 | __mdw_rootp=t | |
77 | ;; | |
78 | *) | |
79 | case $__mdw_system in | |
80 | CYGWIN_*) | |
81 | case " $(id -G) " in | |
82 | *" 544 "*) __mdw_rootp=t __mdw_user="$__mdw_user%admin" ;; | |
83 | *) __mdw_rootp=nil ;; | |
84 | esac | |
85 | ;; | |
86 | *) | |
87 | __mdw_rootp=nil | |
88 | ;; | |
89 | esac | |
fde3353f MW |
90 | esac |
91 | ||
74a53e28 | 92 | __mdw_set_prompt_pieces () { |
74a53e28 MW |
93 | |
94 | ## Fancy highlighting in some terminals. | |
95 | local bold unbold nl gitcolour rccolour uncolour | |
55360ba3 MW |
96 | local host dir more |
97 | bold="" unbold="" nl="" gitcolour="" rccolour="" uncolour="" more="" | |
74a53e28 MW |
98 | __mdw_set_prompt_hacks |
99 | ||
100 | ## Choose the right delimiters. Highlight root prompts specially; | |
101 | ## highlight when I'm running as some other user. Highlight when this | |
102 | ## isn't the outermost shell on the terminal. | |
81ba988c | 103 | local left right u tty |
fde3353f MW |
104 | case $__mdw_rootp in |
105 | t) | |
74a53e28 MW |
106 | left=$(echo « | iconv -f UTF-8 -t //translit) |
107 | right=$(echo » | iconv -f UTF-8 -t //translit) | |
108 | ;; | |
fde3353f | 109 | nil) |
81ba988c | 110 | case $USER in |
74a53e28 | 111 | mdw | mwooding | nemo) u="" left="[" right="]" ;; |
85e5c878 | 112 | *) u="$__mdw_user@" left="{" right="}" ;; |
74a53e28 MW |
113 | esac |
114 | tty=$(tty) | |
115 | case "$__mdw_tty" in | |
116 | "$tty") left="<" right=">" ;; | |
117 | *) __mdw_tty=$tty; export __mdw_tty ;; | |
118 | esac | |
119 | ;; | |
120 | esac | |
121 | ||
122 | ## If this session is insecure then highlight that. | |
123 | local sec_l sec_r h | |
124 | h=$(hostname) | |
125 | case ${SSH_CLIENT-nil},${SCHROOT_CHROOT_NAME-nil},$__mdw_sechost in | |
126 | nil,nil,"$h") sec_l="" sec_r="" ;; | |
127 | nil,nil,*) sec_l="(" sec_r=")" ;; | |
128 | *) sec_l="" sec_r="" | |
129 | esac | |
130 | ||
1a1af55e MW |
131 | ## If this is an schroot environment or some other interesting augmented |
132 | ## environment then point this out. | |
74a53e28 MW |
133 | |
134 | ## Put together the main pieces. | |
d4bbc0c0 | 135 | __mdw_prompt_left="$nl$bold$left$sec_l$u$host$__mdw_hqual$sec_r$dir" |
74a53e28 MW |
136 | __mdw_prompt_git_left="$unbold$gitcolour" |
137 | __mdw_prompt_git_right="$uncolour$bold" | |
138 | __mdw_prompt_rc_left="$unbold$rccolour" | |
139 | __mdw_prompt_rc_right="$uncolour$bold" | |
140 | __mdw_prompt_right="$right$unbold" | |
55360ba3 | 141 | __mdw_prompt_more=" $more$bold>$unbold " |
74a53e28 MW |
142 | } |
143 | ||
144 | __mdw_set_prompt () { | |
062b450d | 145 | case "${TERM-dumb}:${INSIDE_EMACS+$INSIDE_EMACS}" in |
d281a650 | 146 | dumb:) |
55bd0261 MW |
147 | case $(id -u) in 0) PS1='# ' ;; *) PS1='$ ' ;; esac |
148 | PS2='> ' | |
149 | ;; | |
150 | *) | |
151 | __mdw_last_rc=$? | |
152 | local git rc | |
153 | if type __git_ps1 >/dev/null 2>&1; then | |
154 | git="$__mdw_prompt_git_left$(__git_ps1)$__mdw_prompt_git_right" | |
155 | else | |
156 | git="" | |
157 | fi | |
158 | case $__mdw_last_rc in | |
159 | 0) rc="" ;; | |
160 | *) rc="$__mdw_prompt_rc_left rc=$__mdw_last_rc$__mdw_prompt_rc_right" ;; | |
161 | esac | |
162 | PS1="$__mdw_prompt_left$git$rc$__mdw_prompt_right" | |
55360ba3 | 163 | PS2="$PS1$__mdw_prompt_more" |
55bd0261 MW |
164 | unset __mdw_last_rc |
165 | ;; | |
74a53e28 | 166 | esac |
74a53e28 MW |
167 | } |
168 | ||
1e8b505f MW |
169 | __mdw_xterm_settitle () { |
170 | printf >/dev/tty \ | |
171 | "\e]2;%s@%s:%s – %s\e\\" \ | |
85e5c878 | 172 | "$__mdw_user" "$__mdw_host$__mdw_hqual" "$PWD" \ |
1e8b505f MW |
173 | "$1" |
174 | } | |
175 | __mdw_xterm_precmd () { __mdw_xterm_settitle "$__mdw_shell"; } | |
176 | __mdw_xterm_preexec () { __mdw_xterm_settitle "$1"; } | |
05f8a57d | 177 | |
1e8b505f MW |
178 | __mdw_screen_settitle () { |
179 | printf >/dev/tty \ | |
180 | "\ek%s\e\\" \ | |
181 | "$1" | |
182 | } | |
183 | __mdw_screen_precmd () { __mdw_screen_settitle "$__mdw_shell"; } | |
184 | __mdw_screen_preexec () { __mdw_screen_settitle "$1"; } | |
74a53e28 | 185 | |
4877b8d8 | 186 | if [ -t 0 ]; then |
05f8a57d MW |
187 | case ${STY+t},${__mdw_precmd_hook+t},${__mdw_preexec_hook+t},${TERM} in |
188 | ,t,t,xterm*) | |
189 | __mdw_addhook __mdw_precmd_hook __mdw_xterm_precmd | |
190 | __mdw_addhook __mdw_preexec_hook __mdw_xterm_preexec | |
191 | ;; | |
192 | t,t,t,*) | |
4877b8d8 MW |
193 | __mdw_addhook __mdw_precmd_hook __mdw_screen_precmd |
194 | __mdw_addhook __mdw_preexec_hook __mdw_screen_preexec | |
195 | ;; | |
74a53e28 | 196 | esac |
4877b8d8 MW |
197 | case ${__mdw_precmd_hook+t} in |
198 | t) __mdw_addhook __mdw_precmd_hook __mdw_set_prompt ;; | |
199 | esac | |
200 | fi | |
74a53e28 MW |
201 | |
202 | ###-------------------------------------------------------------------------- | |
203 | ### Some handy aliases. | |
204 | ||
205 | alias cx='chmod +x' | |
206 | alias which="command -v" | |
207 | alias rc="rc -l" | |
208 | rootly () { | |
209 | case $# in 0) set -- "${SHELL-/bin/sh}" ;; esac | |
210 | $__MDW_ROOTLY "$@" | |
211 | } | |
212 | alias r=rootly | |
213 | alias re="rootly $EDITOR" | |
214 | alias pstree="pstree -hl" | |
215 | alias cdtmp='cd ${TMPDIR-/tmp}' | |
216 | alias pushtmp='pushd ${TMPDIR-/tmp}' | |
217 | alias e="$EDITOR" | |
218 | alias svn="svnwrap svn" | |
219 | alias @="ssh" | |
daeece4b | 220 | alias make="nice make" |
ee747cc6 | 221 | alias cross-run="nice cross-run" |
8712436f | 222 | alias gdb="gdb -q" |
74a53e28 MW |
223 | |
224 | ###-------------------------------------------------------------------------- | |
225 | ### Colour output. | |
226 | ||
227 | ## Arrange for `ls' output to be in colour. | |
228 | if __mdw_programp dircolors; then eval $(dircolors -b "$HOME/.dircolors") | |
229 | else unset LS_COLORS; fi | |
230 | ||
231 | unalias ls 2>/dev/null || : | |
232 | ls () { | |
233 | if [ -t 1 ]; then command ls $LS_OPTIONS ${LS_COLORS+--color=auto} "$@" | |
234 | else command ls "$@"; fi | |
235 | } | |
236 | ||
237 | ## Arrange for `grep' output to be in colour. | |
238 | export GREP_COLORS="mt=01;31:ms=01;31:mc=031;31:fn=36:ln=36:bn=36:se=34" | |
239 | ||
240 | greplike () { | |
241 | local grep=$1; shift | |
242 | if [ -t 1 ]; then | |
243 | command $grep ${GREP_COLORS+--color=always} "$@" | mdw-pager | |
244 | else | |
245 | command $grep "$@" | |
246 | fi | |
247 | } | |
248 | alias grep="greplike grep" | |
249 | alias egrep="greplike egrep" | |
250 | alias fgrep="greplike fgrep" | |
251 | alias zgrep="greplike zgrep" | |
252 | ||
049cd015 MW |
253 | ## Arrange for `diff' output to be in colour. |
254 | export DIFF_COLORS="hd=1:ln=36:ad=32:de=31" | |
255 | difflike () { | |
256 | local diff=$1; shift | |
257 | if [ -t 1 ]; then | |
258 | command $diff \ | |
259 | ${DIFF_COLORS+--color=always} \ | |
260 | ${DIFF_COLORS+--palette="$DIFF_COLORS"} \ | |
261 | "$@" | mdw-pager | |
262 | else | |
263 | command $diff "$@" | cat | |
264 | fi | |
265 | } | |
266 | alias diff="difflike diff" | |
267 | ||
74a53e28 MW |
268 | ###-------------------------------------------------------------------------- |
269 | ### Other hacks. | |
270 | ||
271 | ## Turn off pagers inside Emacs shell buffers. | |
272 | case "$INSIDE_EMACS" in | |
273 | 2[2-9].*,comint | [3-9][0-9].*,comint) export PAGER=cat ;; | |
274 | esac | |
275 | ||
276 | ###-------------------------------------------------------------------------- | |
277 | ### More complicated shell functions. | |
278 | ||
279 | ## xt [@HOST] XTERM-ARGS | |
280 | ## | |
281 | ## Open a terminal, maybe on a remote host. | |
282 | xt () { | |
283 | case "$1" in | |
284 | @*) | |
285 | local remote=${1#@} title | |
286 | shift | |
287 | if [ $# -gt 0 ]; then | |
288 | title="xterm [$remote] $1" | |
289 | else | |
290 | title="xterm [$remote]" | |
291 | fi | |
292 | (xterm -title "$title" -e ssh $remote "$@" &) | |
293 | ;; | |
294 | *) | |
295 | (xterm "$@" &) | |
296 | ;; | |
297 | esac | |
298 | } | |
299 | ||
300 | ## core [y|n] | |
301 | ## | |
302 | ## Tweak core dumps on and off, or show the current status. | |
303 | core () { | |
304 | case "x$1" in | |
305 | xon|xy|xyes) ulimit -Sc $(ulimit -Hc) ;; | |
306 | xoff|xn|xno) ulimit -Sc 0 ;; | |
307 | x) | |
308 | local l=$(ulimit -Sc) | |
309 | case $l in | |
310 | 0) echo "Core dumps disabled" ;; | |
311 | unlimited) echo "Core dumps enabled" ;; | |
312 | *) echo "Core dump limit is $l blocks" ;; | |
313 | esac | |
314 | ;; | |
315 | *) | |
316 | echo >&2 "usage: core [y|n]" | |
317 | return 1 | |
318 | ;; | |
319 | esac | |
320 | } | |
321 | ||
322 | ## world [NAME] | |
323 | ## | |
324 | ## Set current security world to NAME. With no NAME, print the currently | |
325 | ## selected world. | |
326 | world () { | |
327 | local nfast=${NFAST_HOME-/opt/nfast} | |
328 | local kmdata | |
329 | case "$#" in | |
330 | 0) | |
331 | echo "${NFAST_KMDATA#$nfast/kmdata-}" | |
332 | ;; | |
333 | *) | |
334 | if [ -d "$1" ]; then | |
335 | kmdata=$1 | |
336 | elif [ -d "$nfast/kmdata-$1" ]; then | |
337 | kmdata=$nfast/kmdata-$1 | |
338 | else | |
339 | echo >&2 "world: can't find world $1" | |
340 | return 1 | |
341 | fi | |
342 | shift | |
343 | case "$#" in | |
344 | 0) export NFAST_KMDATA=$kmdata ;; | |
345 | *) "$@" ;; | |
346 | esac | |
347 | ;; | |
348 | esac | |
349 | } | |
350 | ||
351 | ## path-add [VAR] DIR | |
352 | ## | |
353 | ## Add DIR to the beginning of PATH-like variable VAR (defaults to PATH) if | |
354 | ## it's not there already. | |
355 | path_add () { | |
356 | local pathvar export dir val | |
357 | case $# in | |
358 | 1) pathvar=PATH dir=$1 export="export PATH" ;; | |
359 | 2) pathvar=$1 dir=$2 export=: ;; | |
360 | *) echo >&2 "Usage: $0 [VAR] DIR"; return 1 ;; | |
361 | esac | |
362 | eval val=\$$pathvar | |
363 | case ":$val:" in | |
364 | *:"$dir":*) ;; | |
365 | *) val=$dir:$val ;; | |
366 | esac | |
367 | eval $pathvar=\$val | |
368 | eval $export | |
369 | } | |
370 | ||
371 | ## path-remove [VAR] DIR | |
372 | ## | |
373 | ## Remove DIR from PATH-like variable VAR (defaults to PATH); it's not an | |
374 | ## error if DIR isn't in VAR. | |
375 | path_remove () { | |
376 | local pathvar export dir val | |
377 | case $# in | |
378 | 1) pathvar=PATH dir=$1 export="export PATH" ;; | |
379 | 2) pathvar=$1 dir=$2 export=: ;; | |
380 | *) echo >&2 "Usage: $0 [VAR] DIR"; return 1 ;; | |
381 | esac | |
382 | eval val=\$$pathvar | |
383 | case ":$val:" in | |
384 | :"$dir":) val= ;; | |
385 | :"$dir":*) val=${val#$dir:} ;; | |
386 | *:"$dir":) val=${val%:$dir} ;; | |
387 | *:"$dir":*) val=${val%%:$dir:*}:${val#*:$dir:} ;; | |
388 | esac | |
389 | eval $pathvar=\$val | |
390 | eval $export | |
391 | } | |
392 | ||
393 | ## pathhack [-f] +HACK|-HACK... | |
394 | ## | |
395 | ## Each HACK refers to a subdirectory of `~/bin/hacks'. A hack name preceded | |
396 | ## by `+' adds the directory to the PATH; a `-' removes. Adding a hack | |
397 | ## that's already on the PATH doesn't do anything unless `-f' is set, in | |
398 | ## which case it gets moved to the beginning. With no arguments, print the | |
399 | ## currently installed hacks. | |
400 | pathhack () { | |
401 | local p e force arg hack dir | |
402 | p=$PATH | |
403 | if [ $# -eq 0 ]; then | |
404 | while :; do | |
405 | e=${p%%:*} | |
406 | case "$e" in "$HOME/bin/hacks/"*) echo ${e#$HOME/bin/hacks/} ;; esac | |
407 | case "$p" in *:*) p=${p#*:} ;; *) break ;; esac | |
408 | done | |
409 | return | |
410 | fi | |
411 | force=nil | |
412 | while [ $# -gt 0 ]; do | |
413 | arg=$1 | |
414 | case "$arg" in | |
415 | -f | --force) force=t; shift; continue ;; | |
416 | --) shift; break ;; | |
417 | [-+]*) ;; | |
418 | *) break; ;; | |
419 | esac | |
420 | hack=${arg#[+-]} | |
421 | dir=$HOME/bin/hacks/$hack | |
422 | if ! [ -d "$dir" ]; then | |
423 | echo "$0: path hack $hack not found" | |
424 | return 1 | |
425 | fi | |
426 | case "$arg,$force,:$PATH:" in | |
427 | -*,*,*:"$dir":*) path_remove p "$dir" ;; | |
428 | +*,t,*:"$dir":*) path_remove p "$dir"; path_add p "$dir" ;; | |
429 | +*,nil,*:"$dir":*) ;; | |
430 | +*,*) path_add p "$dir" ;; | |
431 | esac | |
432 | shift | |
433 | done | |
434 | if [ $# -eq 0 ]; then PATH=$p; export PATH | |
435 | else PATH=$p "$@"; fi | |
436 | } | |
437 | ||
438 | ###-------------------------------------------------------------------------- | |
439 | ### Finishing touches. | |
440 | ||
4cb8b8da MW |
441 | ## Make sure `$HOME/bin' is on the path. |
442 | path_add "$HOME/bin" | |
443 | ||
6054bdb6 MW |
444 | ## Set the temporary directory again. (A setuid or setgid program may have |
445 | ## unhelpfully forgotten this for us.) | |
0a030a39 MW |
446 | case ${TMPDIR+t} in |
447 | t) ;; | |
448 | *) if __mdw_programp tmpdir; then eval $(tmpdir -b); fi ;; | |
449 | esac | |
6054bdb6 | 450 | |
74a53e28 MW |
451 | ## For `root' use -- some simple molly-guards. |
452 | case $(id -u) in | |
453 | 0) | |
454 | alias rm="rm -i" cp="cp -i" mv="mv -i" | |
455 | set -o noclobber | |
456 | ;; | |
457 | esac | |
458 | ||
459 | ## Run any local hooks. | |
460 | __mdw_source_if_exists "$HOME/.shell-local" | |
461 | ||
462 | ###----- That's all, folks -------------------------------------------------- |