Commit | Line | Data |
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f617db13 | 1 | #! /bin/bash |
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2 | ### |
3 | ### X startup script | |
f617db13 | 4 | |
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5 | ###-------------------------------------------------------------------------- |
6 | ### Utility functions. | |
f617db13 | 7 | |
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8 | ## Progress indicators. |
9 | info=yes | |
10 | info () { | |
11 | case $info in yes) echo "- $*" >&2 ;; esac | |
12 | } | |
f617db13 | 13 | |
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14 | run=yes |
15 | run () { | |
16 | local what=$1; shift | |
17 | local bg=no | |
f617db13 | 18 | |
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19 | case $what in bg*) bg=yes what=${what#bg} ;; esac |
20 | info "run $what: $*" | |
f617db13 | 21 | |
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22 | case "$run,$bg" in |
23 | yes,no) "$@" ;; | |
24 | yes,yes) "$@" & ;; | |
25 | esac | |
26 | } | |
eebca092 | 27 | |
8e08f814 | 28 | ## Program choice |
eebca092 | 29 | pick_program () { |
8e08f814 MW |
30 | local what=$1; shift |
31 | local choice=false | |
eebca092 | 32 | for i in "$@"; do |
8e08f814 | 33 | if type -t >/dev/null "$i"; then choice=$i; break; fi |
eebca092 | 34 | done |
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35 | info "pick $what = $choice" |
36 | echo "$choice" | |
eebca092 MW |
37 | } |
38 | ||
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39 | ###-------------------------------------------------------------------------- |
40 | ### Parse arguments. | |
f617db13 | 41 | |
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42 | vnc=no |
43 | atomtag= | |
44 | start=yes | |
45 | wait=yes | |
f617db13 | 46 | |
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47 | for opt; do |
48 | case "$opt" in | |
49 | help) | |
50 | cat <<EOF | |
51 | Options: | |
52 | tag=TAG | |
53 | [no]trace | |
54 | [no]info | |
55 | [no]run | |
56 | [no]start | |
57 | [no]wait | |
58 | [no]vnc | |
59 | EOF | |
60 | exit | |
61 | ;; | |
f617db13 | 62 | |
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63 | tag=*) atomtag=/${opt#tag=} ;; |
64 | trace) set -x ;; | |
65 | notrace) set +x ;; | |
66 | info | run | start | wait | vnc) eval "$opt=yes" ;; | |
67 | noinfo | norun | nostart | nowait | novnc) eval "${opt#no}=no" ;; | |
68 | ||
69 | *) echo "unknown option $opt" >&2; exit 1 ;; | |
70 | esac | |
71 | done | |
72 | ||
73 | ###-------------------------------------------------------------------------- | |
74 | ### Iniitial settings. | |
75 | ||
76 | ## Assume X sessions are secure. | |
77 | export __mdw_sechost="`hostname`" | |
78 | ||
79 | ## Obtain the screen dimensions. | |
80 | case ",$XWIDTH,$XHEIGHT," in | |
81 | *,,*) eval $(xscsize -bx) ;; | |
82 | esac | |
83 | info "screen size = $XWIDTH x $XHEIGHT" | |
84 | ||
85 | initialize () { | |
86 | ## Load the X resource database. | |
87 | run init xrdb -override $HOME/.Xdefaults | |
88 | ||
89 | ## Random xsettery. | |
90 | run init xset b 10 2000 50 | |
91 | run init xset r rate 500 50 | |
92 | run init xset m 2 1 | |
93 | ||
f4450ac9 MW |
94 | ## Key mappings. |
95 | xmodmap -e 'keysym BackSpace = BackSpace BackSpace' | |
96 | ||
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97 | ## Gnome settings. |
98 | case $vnc in no) run bginit gnome-settings-daemon ;; esac | |
99 | } | |
100 | ||
101 | ###-------------------------------------------------------------------------- | |
102 | ### Start a window manager. | |
103 | ||
104 | wm=$(pick_program window-manager enlightenment e16 twm) | |
105 | wmopts="" | |
106 | case "$wm,$vnc" in | |
107 | enlightenment,yes | e16,yes) | |
108 | wmopts="$eopts -econfdir $HOME/.enlightenment-vnc" | |
109 | ;; | |
110 | esac | |
111 | ||
112 | start-window-manager () { | |
113 | run bginit $wm $wmopts | |
114 | } | |
115 | ||
116 | ###-------------------------------------------------------------------------- | |
117 | ### Random useful clients. | |
118 | ||
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119 | start-clients-local () { :; } |
120 | ||
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121 | start-clients () { |
122 | ## Mail notification. | |
123 | run bginit mail-notification | |
124 | ||
125 | ## System monitor. | |
126 | case $vnc in no) run bginit gkrellm ;; esac | |
127 | ||
128 | ## Screensaver. | |
129 | case $vnc in | |
130 | no) | |
131 | run init xscreensaver-command -exit | |
132 | run bginit xscreensaver -no-splash | |
133 | ;; | |
134 | esac | |
135 | ||
136 | ## Panel. | |
137 | case $vnc in no) run bginit gnome-panel ;; esac | |
54951353 MW |
138 | |
139 | ## Local clients. | |
140 | start-clients-local | |
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141 | } |
142 | ||
143 | ###-------------------------------------------------------------------------- | |
144 | ### Main screen layout. | |
f617db13 | 145 | |
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146 | ## Choose appropriate clients. |
147 | emacs=$(pick_program emacs emacs22 emacs21 emacs) | |
148 | term=$(pick_program terminal pterm Eterm xterm) | |
f617db13 | 149 | |
8e08f814 | 150 | ## Emacs window measurements. |
85bbf8d3 | 151 | case "$emacs" in |
8e08f814 | 152 | emacs21 | emacs) |
85bbf8d3 MW |
153 | e_colwd=492 e_hextra=34 |
154 | e_colchars=82 e_cextra=-2 | |
155 | e_lineht=13 e_vextra=52 | |
156 | ;; | |
157 | emacs22) | |
158 | e_colwd=492 e_hextra=8 | |
159 | e_colchars=82 e_cextra=-6 | |
160 | e_lineht=13 e_vextra=46 | |
161 | ;; | |
162 | esac | |
f617db13 | 163 | |
8e08f814 | 164 | ## Terminal window measurements. |
85bbf8d3 MW |
165 | case "$term" in |
166 | pterm) t_wd=503 t_lineht=13 t_vextra=23 geom=-geometry;; | |
167 | Eterm) t_wd=504 t_lineht=13 t_vextra=23 geom=-g;; | |
168 | xterm) t_wd=507 t_lineht=13 t_vextra=27 geom=-geometry;; | |
169 | esac | |
f617db13 | 170 | |
8e08f814 | 171 | ## GNOME stuff measurements. |
f617db13 MW |
172 | declare -i xbound="XWIDTH - 113" |
173 | ||
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174 | ## Choose a width for Emacs. |
175 | ## | |
176 | ## We'd like it to be as wide as possible, allowing for a column of xterms | |
177 | ## down the right hand side. However, I'd prefer a double-width Emacs to a | |
178 | ## single-width Emacs and xterms. If it's not going to work at all, a single | |
179 | ## Emacs column will have to do. Also, there's a strange thing with Emacs21 | |
180 | ## and the toolbar, so we add on some rows which are later mysteriously | |
181 | ## subtracted. | |
f617db13 | 182 | |
85bbf8d3 MW |
183 | declare -i ecols="(xbound - t_wd - e_hextra)/e_colwd" |
184 | if (( ecols < 2 && xbound > e_colwd * 2 + e_hextra )); then | |
f617db13 MW |
185 | ecols=2 |
186 | elif (( ecols < 1 )); then | |
187 | ecols=1 | |
188 | fi | |
189 | ||
8e08f814 MW |
190 | declare -i \ |
191 | emacsx="ecols * e_colchars + e_cextra" \ | |
192 | emacsy="(XHEIGHT - e_vextra)/e_lineht" | |
193 | ||
194 | start-emacs () { | |
195 | run bgclients noip $emacs -geometry ${emacsx}x${emacsy}+0+0 | |
196 | } | |
197 | ||
198 | ## Now place some xterms. | |
199 | ## | |
200 | ## A few smaller xterms are in general better than one great big one. 35 | |
201 | ## lines is a good height for most terminals. 25 lines is a minimum. The | |
202 | ## strategy for doling out xterms into a column is to make as many 35-liners | |
203 | ## as we can, until the remaining space would be too small for a 25-liner. | |
204 | ## If we can get two 25s out of that then we do (largest first); otherwise | |
205 | ## just make one big one. We stop at the end of a page, once we've made | |
206 | ## three xterms. | |
207 | ||
208 | start-xterms () { | |
209 | ||
210 | ## Initialize some parameters. | |
6b4faba6 | 211 | declare -i x="ecols * e_colwd + e_hextra" xb=xbound |
8e08f814 MW |
212 | declare -i n=0 pgx=0 l h y ht |
213 | declare -i hstd="35 * t_lineht + t_vextra" hmin="25 * t_lineht + t_vextra" | |
214 | ||
215 | ## Do the placement. | |
216 | while :; do | |
217 | ||
218 | ## Start a new iteration. | |
6b4faba6 | 219 | if ((x + t_wd > xb)); then |
8e08f814 | 220 | if ((n >= 3)); then break; fi |
6b4faba6 | 221 | x="pgx + XWIDTH" pgx="pgx + XWIDTH" xb="xb + XWIDTH" |
8e08f814 MW |
222 | fi |
223 | ||
224 | ## Make large xterms. | |
225 | y=0 ht=XHEIGHT | |
226 | while ((ht - hstd >= hmin)); do | |
227 | run bgclients $term $geom 80x35+$x+$y | |
228 | y="y + hstd" ht="ht - hstd" n="n + 1" | |
229 | done | |
230 | ||
231 | ## Fill the remaining space. | |
232 | if ((ht >= 2 * hmin)); then h="ht - hmin"; else h=ht; fi | |
233 | l="(h - t_vextra)/t_lineht" h="l * t_lineht + t_vextra" | |
234 | run bgclients $term $geom 80x$l+$x+$y | |
235 | y="y + h" ht="ht - h" n="n + 1" | |
236 | if ((ht >= hmin)); then | |
237 | run bgclients $term $geom 80x25+$x+$y | |
238 | n="n + 1" | |
239 | fi | |
240 | x="x + t_wd" | |
f617db13 | 241 | done |
8e08f814 | 242 | } |
f617db13 | 243 | |
8e08f814 | 244 | ###-------------------------------------------------------------------------- |
3bdada49 MW |
245 | ### Requesters. |
246 | ||
247 | req () { | |
248 | declare title=$1 hist=$2; shift 2 | |
249 | cmd=$(xgetline -t "$title" -p "Command:" -Hl "$HOME/$hist") && | |
250 | exec "$@" "$cmd" | |
251 | } | |
252 | ||
253 | ###-------------------------------------------------------------------------- | |
8e08f814 MW |
254 | ### Final waiting. |
255 | ||
256 | atom=XINIT_COMMAND$atomtag | |
257 | ||
258 | xwait () { | |
259 | while :; do | |
260 | xatom delete $atom | |
261 | info "waiting on $atom" | |
262 | line=$(xatom wait $atom) | |
263 | info "xatom: $line" | |
264 | ||
265 | case "$line" in | |
266 | :help) | |
267 | xmsg -I -t "xinitrc help" -d "xinitrc commands" - <<EOF & | |
268 | :help | |
269 | :emacs :xterms :window-manager :clients | |
3bdada49 | 270 | :ask-run :ask-command |
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271 | :init |
272 | :terminal | |
273 | ! SHELL-COMMAND | |
274 | CLIENT | |
275 | EOF | |
276 | ;; | |
277 | :emacs | :xterms | :window-manager | :clients) | |
278 | start-${line#:} | |
279 | ;; | |
280 | :terminal) | |
281 | run bgclients $term | |
282 | ;; | |
283 | :init) | |
284 | initialize | |
285 | ;; | |
286 | :exec) | |
287 | info "restarting xinitrc" | |
288 | exec "$0" wait nostart | |
289 | ;; | |
3bdada49 MW |
290 | :ask-run) |
291 | req "Shell command" .cmd.hist xcatch -FMiscFixed6x13 -- sh -c& | |
292 | ;; | |
293 | :ask-command) | |
294 | req "xinit command" .xinit.hist xatom set XINIT_COMMAND$atomtag& | |
295 | ;; | |
8e08f814 MW |
296 | :*) |
297 | xmsg -E -t "xinitrc error" "Unknown command \`$line'" & | |
298 | ;; | |
299 | !*) | |
300 | eval "${line#!}" | |
301 | ;; | |
302 | *) | |
303 | set -- $line | |
304 | run bgclients "$@" | |
305 | ;; | |
306 | esac | |
307 | done | |
308 | } | |
309 | ||
310 | ###-------------------------------------------------------------------------- | |
311 | ### Actually start things up. | |
312 | ||
54951353 MW |
313 | if [ -f $HOME/.xinitrc-local ]; then |
314 | . $HOME/.xinitrc-local | |
315 | fi | |
316 | ||
8e08f814 MW |
317 | case "$start" in |
318 | yes) | |
319 | info "starting standard clients" | |
320 | initialize | |
321 | start-window-manager | |
322 | start-clients | |
323 | start-emacs | |
324 | start-xterms | |
325 | ;; | |
326 | no) | |
327 | info "not starting standard clients" | |
328 | ;; | |
329 | esac | |
330 | ||
331 | case "$wait" in | |
332 | yes) | |
333 | xwait | |
334 | ;; | |
335 | no) | |
336 | info "not waiting before exit" | |
337 | ;; | |
338 | esac | |
f617db13 | 339 | |
8e08f814 | 340 | ###----- That's all, folks -------------------------------------------------- |