#!/bin/sh # Environment variables set by the script: # # L3_SESSION_ID - uniq id of the LiLaLo-session # L3_PARENT_TTY - name of tty on which script is running # L3_TTY - current tty # PS1 - intercative shell prompt in which LiLaLo hides # various information about the command # L3_TAMPERED_EDITORS - list of editors which are tampered with functions # Functions with the names starting _l3_ are internal. # Such functions are unset before this rc script exits _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' _l3_start() { if _l3_is_not_running_here then _l3_start_session _l3_run_script else _l3_env _l3_init_prompt l3_fix_prompt _l3_tamper_editors _l3_tamper_commands _l3_unset_internal fi } # ===================== STAGE 1 ============================ _l3_is_not_running_here() { export L3_TTY=`/usr/bin/tty` proc_on_the_term=`w | grep "${L3_TTY##/dev/}" | awk '{print $8;}'` # freeBSD: [ -n "$bsd" ] && \ proc_on_the_term=`w | grep "${L3_TTY##/dev/tty}" | awk '{print $6;}'` [ -n "$proc_on_the_term" ] && echo $proc_on_the_term | grep -qv script } _l3_start_session() { export L3_SESSION_ID=${L3_TTY##*/}-$$ export L3_HOME=~/.lilalo/ mkdir -p $L3_HOME uname -a | grep -qi bsd && bsd=yes parent=`cat /proc/$PPID/cmdline 2> /dev/null` system=`uname -rs` login_from=`who | grep "${L3_TTY##/dev/}" | awk '{print $6;}' | tr -d '()'` #[ -n "$bsd" ] && login_from="" #FIXME! start_time=`date +%s` hostname=`hostname -f 2> /dev/null` [ -n "$bsd" ] && hostname=`hostname` cat < $L3_HOME/$L3_SESSION_ID.info $L3_SESSION_ID $hostname $USER $UID $login_from $L3_TTY $system $parent $PPID $$ $start_time $LANG INFO unset parent system login_from start_time hostname } _l3_run_script() { uname -a | grep -qi bsd && bsd=yes flush="-f" #linux [ -n "$bsd" ] && flush="-t 0" #freebsd export L3_PARENT_TTY=`/usr/bin/tty` exec script $flush -q $L3_HOME/${L3_SESSION_ID}.script } # ===================== STAGE 2 ============================ _l3_env() { trap l3_close_session 2 trap l3_close_session EXIT true } l3_close_session() { ( echo '' history | sed 's/&/\&/; s//\>/g' echo '' ) >> $L3_HOME/$L3_SESSION_ID.info } _l3_init_prompt() { PS1='[\u@\h:\W]\$ ' PS1='\[\033[0;32m\]'$PS1'\[\033[0m\]' export PS1 } l3_fix_prompt() { export PS1='\[v2#\!#$?#$UID#$$#$(/bin/date +%s)#$PWD#\033[1024D\033[K\]'$PS1 } _l3_tamper_editors() { for editor_file in $_l3_editors_to_tamper do [ -x $editor_file ] || continue editor_name=${editor_file##*/} eval " $editor_name() { if [ -d \"\$1\" ] then $editor_file \"\$1\" return \$? else TIME=\"\`date +%s\`\" DIR=\"\" [ \"\${1#/}\" = \"\$1\" ] && DIR=\"\$PWD/\" DIFFNAME=\"\$PPID_\${TIME}_\`echo \$DIR\$1| /bin/sed s@_@__@ | /bin/sed 's@/@_@g'\`.diff\" old_file=\"/tmp/l3-saved-\$\$.\$RANDOM.\$RANDOM\" /bin/cp -- \"\$1\" \"\$old_file\" 2> /dev/null $editor_file \"\$@\" || ERR=\$? [ -e \"\$old_file\" ] && diff \"\$old_file\" \"\$1\" > \"\$L3_HOME/\$DIFFNAME\" 2> /dev/null \ || diff /dev/null \"\$1\" > \"\$L3_HOME/\$DIFFNAME\" 2> /dev/null /bin/rm \"\$old_file\" 2> /dev/null return \$ERR fi } " L3_TAMPERED_EDITORS="$L3_TAMPERED_EDITORS $editor_name" done [ -n "$L3_TAMPERED_EDITORS" ] && export L3_TAMPERED_EDITORS } _l3_tamper_commands() { tty() { [ -n "$L3_PARENT_TTY" ] && echo $L3_PARENT_TTY || /usr/bin/tty } } _l3_unset_internal() { unset `set | grep '^_l3_.*()' | sed 's/()//'` unset `set | grep '^_l3_.*=' | sed 's/=.*//'` }