lilalo
view l3bashrc @ 124:d702a44d5d6d
Command structure fields desription have moved to wiki
| author | Igor Chubin <igor@chub.in> |
|---|---|
| date | Fri Jul 04 11:09:56 2008 +0300 (2008-07-04) |
| parents | 71bd999bcb04 |
| children | 244825e244de |
line source
1 #!/bin/sh
3 # (c) Igor Chubin, igor@chub.in, 2004-2006
5 # Environment variables set by the script:
6 #
7 # L3_SESSION_ID - uniq id of the LiLaLo-session
8 # L3_PARENT_TTY - name of tty on which script is running
9 # PS1 - intercative shell prompt in which LiLaLo hides
10 # various information about the command
11 # L3_TAMPERED_EDITORS - list of editors which are tampered with functions
14 # Functions with the names starting _l3_ are internal.
15 # Such functions are unset before this rc script exits
17 _l3_editors_to_tamper='/bin/vi /usr/bin/vi /usr/bin/vim /bin/ee /usr/bin/ee /usr/bin/pico /usr/bin/nano /usr/local/bin/vim'
19 _l3_start()
20 {
21 echo $- | grep -q i || return 0
22 if _l3_is_running_here
23 then
24 _l3_env
25 _l3_init_prompt
26 l3_fix_prompt
27 _l3_tamper_editors
28 _l3_tamper_commands
29 _l3_unset_internal
30 else
31 _l3_start_session
32 _l3_run_script
33 fi
34 }
36 # ===================== STAGE 1 ============================
38 _l3_is_running_here()
39 {
40 ps waux | awk '{print $2" "$11 }' | grep -q ^$PPID" "script
41 return $?
43 # Check if ^^^^ run on Linux
44 # and del vvvv this if it does
46 export L3_TTY=`/usr/bin/tty`
47 uname -a | grep -qi bsd && bsd=yes
48 proc_on_the_term=`w | grep "${L3_TTY##/dev/}" | awk '{print $8;}'`
49 # freeBSD:
50 [ -n "$bsd" ] && \
51 proc_on_the_term=`w | grep "${L3_TTY##/dev/tty}" | awk '{print $6;}'`
53 [ -n "$proc_on_the_term" ] && echo $proc_on_the_term | grep -q script
54 }
56 _l3_start_session()
57 {
58 export L3_SESSION_ID=${RANDOM}${RANDOM}${RANDOM}${RANDOM}-`date +%s`
59 export L3_HOME=~/.lilalo/
60 mkdir -p $L3_HOME
62 tty=`/usr/bin/tty`
63 uname -a | grep -qi bsd && bsd=yes
64 parent=`cat /proc/$PPID/cmdline 2> /dev/null`
65 [ -z "$parent" ] && parent="`ps waux | awk '{if ($2 == '$PPID') print $11; }'`"
66 system=`uname -rs`
67 login_from=`who | grep "${tty##/dev/}" | awk '{print $6;}' | tr -d '()'`
68 #[ -n "$bsd" ] && login_from="" #FIXME!
69 start_time=`date +%s`
70 hostname=`hostname -f 2> /dev/null`
71 [ -n "$bsd" ] && hostname=`hostname`
73 cat <<INFO > $L3_HOME/$L3_SESSION_ID.info
74 <session>
75 <local_session_id>$L3_SESSION_ID</local_session_id>
76 <hostname>$hostname</hostname>
77 <user>$USER</user>
78 <uid>$UID</uid>
79 <login_from>$login_from</login_from>
80 <tty>$tty</tty>
81 <system>$system</system>
82 <parent>$parent</parent>
83 <ppid>$PPID</ppid>
84 <pid>$$</pid>
85 <start_time>$start_time</start_time>
86 <lang>$LANG</lang>
87 </session>
88 INFO
90 unset parent system login_from start_time hostname tty
91 }
93 _l3_run_script()
94 {
95 uname -a | grep -qi bsd && bsd=yes
96 flush="-f" #linux
97 [ -n "$bsd" ] && flush="-t 0" #freebsd
98 export L3_PARENT_TTY=`/usr/bin/tty`
99 exec script $flush -q $L3_HOME/${L3_SESSION_ID}.script
100 }
102 # ===================== STAGE 2 ============================
104 _l3_env()
105 {
106 trap l3_close_session 2
107 trap l3_close_session EXIT
108 true
109 }
111 l3_close_session()
112 {
113 (
114 echo '<history>'
115 history | sed 's/&/\&/; s/</\</g; s/>/\>/g'
116 echo '</history>'
117 ) >> $L3_HOME/$L3_SESSION_ID.info
118 }
120 _l3_init_prompt()
121 {
122 PS1='[\u@\h:\W]\$ '
123 [ $UID = 0 ] \
124 && PS1='\[\033[0;31m\]'$PS1'\[\033[0m\]' \
125 || PS1='\[\033[0;32m\]'$PS1'\[\033[0m\]' \
126 export PS1
127 }
129 l3_fix_prompt()
130 {
131 export PS1='\[$($L3_HOME/l3prompt "v3#\!#$?#$UID#$$#$(/bin/date +%s)#$PWD#$RANDOM#")$(l3_save_last_line >& /dev/null)\]'$PS1
132 }
134 _l3_tamper_editors()
135 {
136 for editor_file in $_l3_editors_to_tamper
137 do
138 [ -x $editor_file ] || continue
139 editor_name=${editor_file##*/}
140 eval "
141 $editor_name() {
142 if [ -d \"\$1\" ]
143 then
144 $editor_file \"\$1\"
145 return \$?
146 else
147 TIME=\"\`date +%s\`\"
148 DIR=\"\"
149 [ \"\${1#/}\" = \"\$1\" ] && DIR=\"\$PWD/\"
150 DIFFNAME=\"\${L3_SESSION_ID}_\${TIME}\`echo \$DIR\$1| sed s@_@__@ | sed 's@/@_@g'\`.diff\"
151 old_file=\"/tmp/l3-saved-\$\$.\$RANDOM.\$RANDOM\"
152 /bin/cp -- \"\$1\" \"\$old_file\" 2> /dev/null
153 $editor_file \"\$@\" || ERR=\$?
154 if [ -e \"\$old_file\" ]
155 then
156 diff -u \"\$old_file\" \"\$1\" > \"\$L3_HOME/\$DIFFNAME\" 2> /dev/null
157 else
158 diff -u /dev/null \"\$1\" > \"\$L3_HOME/\$DIFFNAME\" 2> /dev/null
159 fi
160 /bin/rm \"\$old_file\" 2> /dev/null
161 return \$ERR
162 fi
163 }
164 "
165 L3_TAMPERED_EDITORS="$L3_TAMPERED_EDITORS $editor_name"
166 done
167 [ -n "$L3_TAMPERED_EDITORS" ] && export L3_TAMPERED_EDITORS
168 }
170 _l3_tamper_commands()
171 {
172 tty()
173 {
174 [ -n "$L3_PARENT_TTY" ] && echo $L3_PARENT_TTY || /usr/bin/tty
175 }
176 }
178 _l3_unset_internal()
179 {
180 unset `set | grep '^_l3_.*()' | sed 's/()//'`
181 unset `set | grep '^_l3_.*=' | sed 's/=.*//'`
182 }
184 l3shot()
185 {
186 if [ -x "`which xwd`" ]
187 then
188 _l3_home=${L3_HOME:-~/.lilalo}
189 shot_name="${L3_SESSION_ID}_`date +%s`".xwd
190 echo -n Choose window to be shoot ... >&2
191 [ -d ${_l3_home} ] || mkdir -p ${_l3_home}
192 xwd -out "$_l3_home/$shot_name" \
193 && echo Screenshot is written to ${_l3_home}/${shot_name} \
194 && curl -s -F photo=@$_l3_home/$shot_name http://`l3-config backend_address`/l3-upload
195 else
196 {
197 echo
198 echo "Can't make screenshot :("
199 echo
200 echo I must use program xwd to make screenshot,
201 echo but it seems not to be installed
202 echo Try to find the program in the \"xbase-clients\" package
203 echo
204 } >&2
205 fi
206 }
208 l3upload()
209 {
210 if [ $# -lt 1 ]
211 then
212 echo Usage:
213 echo
214 echo l3upload "<filename>"
215 echo
216 echo "<filename>" - name of the file to upload
217 return 1
218 else
219 source=$1
220 target="${L3_SESSION_ID}_`date +%s`"_"$(echo $source|sed s@.*/@@)"
221 if echo $source | grep -q http://
222 then
223 curl -s "$source" > /tmp/$target
224 else
225 [ -r "$source" ] || { echo "l3upload: Can't open $source for reading" > /dev/stderr; return 1; }
226 cp $source /tmp/$target
227 fi
228 echo Uploaded file name is ${target}
229 curl -s -F photo=@/tmp/$target http://`l3-config backend_address`/l3-upload && rm -f /tmp/$target
230 fi
231 }
233 # Append lines from "$@" files to the end of the shell history
234 hist_append ()
235 {
236 eval $(cat "$@" | sed 's/"/\\\\"/g' | while read line; do echo history -s \"$line\"\;; done);
237 }
239 l3_save_last_line ()
240 {
241 (
242 echo '<cline>'
243 history 1 | sed 's/&/&/; s/</\</g; s/>/\>/g'
244 echo '</cline>'
245 ) >> $L3_HOME/$L3_SESSION_ID.info
246 }
248 l3 ()
249 {
250 case "$1" in
251 on)
252 echo switching on
253 ;;
254 off)
255 echo switcing off
256 ;;
257 cd)
258 echo l3cd="$2" > ~/.l3rc
259 ;;
260 pwd)
261 grep ^l3cd= ~/.l3rc | sed s/[^=]*=//
262 ;;
263 *)
264 cat <<EOF
265 l3 [command]:
267 cd new_context - change current lilalo context
268 pwd - show current lilalo context
269 on - switch writing on (NOT IMPLEMENTED YET)
270 off - switch writing off (NOT IMPLEMENTED YET)
272 EOF
273 ;;
274 esac
275 }
277 l3cd()
278 {
279 l3 cd "$@"
280 }
282 l3pwd()
283 {
284 l3 pwd
285 }