lilalo

annotate l3bashrc @ 107:54fbf2041159

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l3cd
author devi
date Fri Aug 04 18:06:09 2006 +0300 (2006-08-04)
parents 09ed722f2759
children 3cd466f35ad6
rev   line source
devi@70 1 #!/bin/sh
devi@70 2
devi@105 3 # (c) Igor Chubin, igor@chub.in, 2004-2006
devi@70 4
devi@76 5 # Environment variables set by the script:
devi@76 6 #
devi@76 7 # L3_SESSION_ID - uniq id of the LiLaLo-session
devi@76 8 # L3_PARENT_TTY - name of tty on which script is running
devi@76 9 # PS1 - intercative shell prompt in which LiLaLo hides
devi@76 10 # various information about the command
devi@76 11 # L3_TAMPERED_EDITORS - list of editors which are tampered with functions
devi@76 12
devi@76 13
devi@76 14 # Functions with the names starting _l3_ are internal.
devi@76 15 # Such functions are unset before this rc script exits
devi@76 16
devi@76 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'
devi@76 18
devi@70 19 _l3_start()
devi@70 20 {
devi@80 21 echo $- | grep -q i || return 0
devi@79 22 if _l3_is_running_here
devi@76 23 then
devi@76 24 _l3_env
devi@76 25 _l3_init_prompt
devi@76 26 l3_fix_prompt
devi@76 27 _l3_tamper_editors
devi@76 28 _l3_tamper_commands
devi@76 29 _l3_unset_internal
devi@79 30 else
devi@79 31 _l3_start_session
devi@79 32 _l3_run_script
devi@76 33 fi
devi@76 34 }
devi@76 35
devi@76 36 # ===================== STAGE 1 ============================
devi@76 37
devi@79 38 _l3_is_running_here()
devi@76 39 {
devi@79 40 ps waux | awk '{print $2" "$11 }' | grep -q ^$PPID" "script
devi@79 41 return $?
devi@79 42
devi@79 43 # Check if ^^^^ run on Linux
devi@79 44 # and del vvvv this if it does
devi@79 45
devi@76 46 export L3_TTY=`/usr/bin/tty`
devi@79 47 uname -a | grep -qi bsd && bsd=yes
devi@70 48 proc_on_the_term=`w | grep "${L3_TTY##/dev/}" | awk '{print $8;}'`
devi@70 49 # freeBSD:
devi@70 50 [ -n "$bsd" ] && \
devi@70 51 proc_on_the_term=`w | grep "${L3_TTY##/dev/tty}" | awk '{print $6;}'`
devi@70 52
devi@79 53 [ -n "$proc_on_the_term" ] && echo $proc_on_the_term | grep -q script
devi@70 54 }
devi@70 55
devi@70 56 _l3_start_session()
devi@70 57 {
devi@79 58 export L3_SESSION_ID=${RANDOM}${RANDOM}${RANDOM}${RANDOM}-`date +%s`
devi@71 59 export L3_HOME=~/.lilalo/
devi@70 60 mkdir -p $L3_HOME
devi@70 61
devi@79 62 tty=`/usr/bin/tty`
devi@70 63 uname -a | grep -qi bsd && bsd=yes
devi@70 64 parent=`cat /proc/$PPID/cmdline 2> /dev/null`
devi@79 65 [ -z "$parent" ] && parent="`ps waux | awk '{if ($2 == '$PPID') print $11; }'`"
devi@70 66 system=`uname -rs`
devi@79 67 login_from=`who | grep "${tty##/dev/}" | awk '{print $6;}' | tr -d '()'`
devi@70 68 #[ -n "$bsd" ] && login_from="" #FIXME!
devi@70 69 start_time=`date +%s`
devi@70 70 hostname=`hostname -f 2> /dev/null`
devi@70 71 [ -n "$bsd" ] && hostname=`hostname`
devi@70 72
devi@70 73 cat <<INFO > $L3_HOME/$L3_SESSION_ID.info
devi@70 74 <session>
devi@70 75 <local_session_id>$L3_SESSION_ID</local_session_id>
devi@70 76 <hostname>$hostname</hostname>
devi@70 77 <user>$USER</user>
devi@70 78 <uid>$UID</uid>
devi@70 79 <login_from>$login_from</login_from>
devi@79 80 <tty>$tty</tty>
devi@70 81 <system>$system</system>
devi@70 82 <parent>$parent</parent>
devi@70 83 <ppid>$PPID</ppid>
devi@70 84 <pid>$$</pid>
devi@70 85 <start_time>$start_time</start_time>
devi@76 86 <lang>$LANG</lang>
devi@70 87 </session>
devi@70 88 INFO
devi@70 89
devi@79 90 unset parent system login_from start_time hostname tty
devi@70 91 }
devi@70 92
devi@70 93 _l3_run_script()
devi@70 94 {
devi@70 95 uname -a | grep -qi bsd && bsd=yes
devi@70 96 flush="-f" #linux
devi@70 97 [ -n "$bsd" ] && flush="-t 0" #freebsd
devi@76 98 export L3_PARENT_TTY=`/usr/bin/tty`
devi@70 99 exec script $flush -q $L3_HOME/${L3_SESSION_ID}.script
devi@70 100 }
devi@70 101
devi@76 102 # ===================== STAGE 2 ============================
devi@76 103
devi@76 104 _l3_env()
devi@76 105 {
devi@76 106 trap l3_close_session 2
devi@76 107 trap l3_close_session EXIT
devi@76 108 true
devi@76 109 }
devi@76 110
devi@76 111 l3_close_session()
devi@70 112 {
devi@71 113 (
devi@71 114 echo '<history>'
devi@71 115 history | sed 's/&/\&amp;/; s/</\&lt;/g; s/>/\&gt;/g'
devi@71 116 echo '</history>'
devi@71 117 ) >> $L3_HOME/$L3_SESSION_ID.info
devi@70 118 }
devi@70 119
devi@76 120 _l3_init_prompt()
devi@76 121 {
devi@76 122 PS1='[\u@\h:\W]\$ '
devi@77 123 [ $UID = 0 ] \
devi@77 124 && PS1='\[\033[0;31m\]'$PS1'\[\033[0m\]' \
devi@77 125 || PS1='\[\033[0;32m\]'$PS1'\[\033[0m\]' \
devi@76 126 export PS1
devi@76 127 }
devi@76 128
devi@76 129 l3_fix_prompt()
devi@76 130 {
devi@104 131 export PS1='\[v2#\!#$?#$UID#$$#$(/bin/date +%s)$(l3_save_last_line)#$PWD#\033[1024D\033[K\]'$PS1
devi@76 132 }
devi@76 133
devi@76 134 _l3_tamper_editors()
devi@76 135 {
devi@76 136 for editor_file in $_l3_editors_to_tamper
devi@76 137 do
devi@76 138 [ -x $editor_file ] || continue
devi@76 139 editor_name=${editor_file##*/}
devi@76 140 eval "
devi@76 141 $editor_name() {
devi@76 142 if [ -d \"\$1\" ]
devi@76 143 then
devi@76 144 $editor_file \"\$1\"
devi@76 145 return \$?
devi@76 146 else
devi@76 147 TIME=\"\`date +%s\`\"
devi@76 148 DIR=\"\"
devi@76 149 [ \"\${1#/}\" = \"\$1\" ] && DIR=\"\$PWD/\"
devi@80 150 DIFFNAME=\"\${L3_SESSION_ID}_\${TIME}\`echo \$DIR\$1| sed s@_@__@ | sed 's@/@_@g'\`.diff\"
devi@76 151 old_file=\"/tmp/l3-saved-\$\$.\$RANDOM.\$RANDOM\"
devi@76 152 /bin/cp -- \"\$1\" \"\$old_file\" 2> /dev/null
devi@76 153 $editor_file \"\$@\" || ERR=\$?
devi@80 154 [ -e \"\$old_file\" ] && diff \"\$old_file\" \"\$1\" > \"\$L3_HOME/\$DIFFNAME\" 2> /dev/null
devi@80 155 if [ "$?" == 2 ]
devi@80 156 then
devi@80 157 diff /dev/null \"\$1\" > \"\$L3_HOME/\$DIFFNAME\" 2> /dev/null
devi@80 158 fi
devi@76 159 /bin/rm \"\$old_file\" 2> /dev/null
devi@76 160 return \$ERR
devi@76 161 fi
devi@76 162 }
devi@76 163 "
devi@76 164 L3_TAMPERED_EDITORS="$L3_TAMPERED_EDITORS $editor_name"
devi@76 165 done
devi@76 166 [ -n "$L3_TAMPERED_EDITORS" ] && export L3_TAMPERED_EDITORS
devi@76 167 }
devi@76 168
devi@76 169 _l3_tamper_commands()
devi@76 170 {
devi@76 171 tty()
devi@76 172 {
devi@76 173 [ -n "$L3_PARENT_TTY" ] && echo $L3_PARENT_TTY || /usr/bin/tty
devi@76 174 }
devi@76 175 }
devi@76 176
devi@76 177 _l3_unset_internal()
devi@76 178 {
devi@76 179 unset `set | grep '^_l3_.*()' | sed 's/()//'`
devi@76 180 unset `set | grep '^_l3_.*=' | sed 's/=.*//'`
devi@76 181 }
devi@78 182
devi@78 183
devi@78 184 l3shot()
devi@78 185 {
devi@78 186 if [ -x "`which xwd`" ]
devi@78 187 then
devi@78 188 _l3_home=${L3_HOME:-~/.lilalo}
devi@78 189 shot_name="${L3_SESSION_ID}_`date +%s`".xwd
devi@78 190 echo -n Choose window to be shoot ... >&2
devi@78 191 [ -d ${_l3_home} ] || mkdir -p ${_l3_home}
devi@78 192 xwd -out "$_l3_home/$shot_name" \
devi@78 193 && echo Ok\
devi@78 194 && echo Shot was successful. \
devi@78 195 && echo Screenshot is written to ${_l3_home}/${shot_name} \
devi@78 196 && echo Screenshot will appears in the lablog.
devi@78 197 else
devi@78 198 {
devi@78 199 echo
devi@78 200 echo "Can't make screenshot :("
devi@78 201 echo
devi@78 202 echo I must use program xwd to make screenshot,
devi@78 203 echo but it seems not to be installed
devi@78 204 echo Try to find the program in the \"xbase-clients\" package
devi@78 205 echo
devi@78 206 } >&2
devi@78 207 fi
devi@78 208 }
devi@97 209
devi@97 210 # Append lines from "$@" files to the end of the shell history
devi@97 211 hist_append ()
devi@97 212 {
devi@97 213 eval $(cat "$@" | sed 's/"/\\\\"/g' | while read line; do echo history -s \"$line\"\;; done);
devi@97 214 }
devi@97 215
devi@97 216 l3_save_last_line ()
devi@97 217 {
devi@97 218 (
devi@97 219 echo '<cline>'
devi@97 220 history 1 | sed 's/&/&amp;/; s/</\&lt;/g; s/>/\&gt;/g'
devi@97 221 echo '</cline>'
devi@97 222 ) >> $L3_HOME/$L3_SESSION_ID.info
devi@97 223 }
devi@97 224
devi@107 225 l3 ()
devi@107 226 {
devi@107 227 case "$1" in
devi@107 228 on)
devi@107 229 echo switching on
devi@107 230 ;;
devi@107 231 off)
devi@107 232 echo switcing off
devi@107 233 ;;
devi@107 234 cd)
devi@107 235 echo l3cd="$2" > ~/.l3rc
devi@107 236 ;;
devi@107 237 pwd)
devi@107 238 grep ^l3cd= ~/.l3rc | sed s/[^=]*=//
devi@107 239 ;;
devi@107 240 *)
devi@107 241 echo /usr/local/bin/l3
devi@107 242 ;;
devi@107 243 esac
devi@107 244 }
devi@97 245