131 lines
4.3 KiB
Bash
Executable File
131 lines
4.3 KiB
Bash
Executable File
#!/bin/bash
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# AUTHOR: Clemens Schwaighofer
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# DATE: 2015/8/4
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# DESC: inits a screen with shells (sets titles) and runs command in those shells
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# reads all data from a config file
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#
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# open the screen config file
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# - first line is the screen name
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# - second line on are the screens + commands
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# - a line is title#command
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# - command can be empty, just creates a screen then
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# - title can be empty, but not recommended
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# - no hash is allowed in title or command
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# EXAMPLE:
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# ===========================
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# FooScreen
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# TitleA#cd ~/Folder
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# TitleB#vim file
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# TitleC#
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# TitleD#ping foo.bar.com
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# ===========================
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set -e
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ERROR=0;
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if [ ! -f "$1" ]; then
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echo "Cannot find screen init config file '$1'";
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ERROR=1;
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else
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# get the first line for the screen name
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SCREEN_NAME=$(head -n 1 "$1");
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fi;
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# check if we are in a screen one, if yes, exit
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if [ -z "$STY" ]; then
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# check if the "work" screen exists
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# if [ -n "$SCREEN_NAME" ] && [[ -n $(screen -ls | grep ".$SCREEN_NAME\t") ]];
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if [ -n "$SCREEN_NAME" ] && screen -ls | grep -q ".$SCREEN_NAME\t"; then
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echo "Screen '$SCREEN_NAME' already exists";
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ERROR=1;
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fi;
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else
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echo "Cannot run screen init script in a screen";
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ERROR=1;
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fi;
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if [ $ERROR -eq 1 ]; then
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exit;
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fi;
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# termcap (echo $TERMCAP)
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# http://web.mit.edu/gnu/doc/html/screen_15.html#SEC89
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# in screen ^-a . to dump current termcap
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export SCREENCAP="SC|screen.xterm-256color|VT 100/ANSI X3.64 virtual terminal:\
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:DO=\E[%dB:LE=\E[%dD:RI=\E[%dC:UP=\E[%dA:bs:bt=\E[Z:\
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:cd=\E[J:ce=\E[K:cl=\E[H\E[J:cm=\E[%i%d;%dH:ct=\E[3g:\
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:do=^J:nd=\E[C:pt:rc=\E8:rs=\Ec:sc=\E7:st=\EH:up=\EM:\
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:le=^H:bl=^G:cr=^M:it#8:ho=\E[H:nw=\EE:ta=^I:is=\E)0:\
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:li#92:co#228:am:xn:xv:LP:sr=\EM:al=\E[L:AL=\E[%dL:\
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:cs=\E[%i%d;%dr:dl=\E[M:DL=\E[%dM:dc=\E[P:DC=\E[%dP:\
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:im=\E[4h:ei=\E[4l:mi:IC=\E[%d@:ks=\E[?1h\E=:\
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:ke=\E[?1l\E>:vi=\E[?25l:ve=\E[34h\E[?25h:vs=\E[34l:\
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:ti=\E[?1049h:te=\E[?1049l:us=\E[4m:ue=\E[24m:so=\E[3m:\
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:se=\E[23m:mb=\E[5m:md=\E[1m:mh=\E[2m:mr=\E[7m:me=\E[m:\
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:ms:Co#8:pa#64:AF=\E[3%dm:AB=\E[4%dm:op=\E[39;49m:AX:\
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:vb=\Eg:G0:as=\E(0:ae=\E(B:\
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:ac=\140\140aaffggjjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~..--++,,hhII00:\
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:po=\E[5i:pf=\E[4i:Km=\E[M:k0=\E[10~:k1=\EOP:k2=\EOQ:\
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:k3=\EOR:k4=\EOS:k5=\E[15~:k6=\E[17~:k7=\E[18~:\
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:k8=\E[19~:k9=\E[20~:k;=\E[21~:F1=\E[23~:F2=\E[24~:\
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:kB=\E[Z:kh=\E[1~:@1=\E[1~:kH=\E[4~:@7=\E[4~:kN=\E[6~:\
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:kP=\E[5~:kI=\E[2~:kD=\E[3~:ku=\EOA:kd=\EOB:kr=\EOC:\
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:kl=\EOD:km:";
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# read the config file and init the screen
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pos=0;
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while read -r line;
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do
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if [ $pos -eq 0 ]; then
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# should I clean the title to alphanumeric? (well yes, but not now)
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SCREEN_NAME=$line;
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if [ -z "$SCREEN_NAME" ]; then
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echo "[!] No screen name set";
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exit;
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fi;
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if [[ ! $SCREEN_NAME =~ ^[A-Za-z0-9-]+$ ]]; then
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echo "[!] Screen name must be alphanumeric (letters, numbers, and hyphens only): ${SCREEN_NAME}";
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exit;
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fi;
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# check that we do not create double entries
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if screen -list | grep -q "${SCREEN_NAME}"; then
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echo "[!] Screen with ${SCREEN_NAME} already exists";
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exit;
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fi;
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else
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# screen number is pos - 1
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SCREEN_POS=$(( pos-1 ));
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# extract screen title and command (should also be cleaned for title)
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SCREEN_TITLE=$(echo "$line" | cut -d "#" -f 1);
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SCREEN_CMD=$(echo "$line" | cut -d "#" -f 2);
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# skip lines that start with ";" these are comments, we do not use # as they are separators
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if [[ $line =~ ^\; ]]; then
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printf "[%2s] [SKIP] '%s' with command '%s'\n" $SCREEN_POS "$SCREEN_TITLE" "$SCREEN_CMD";
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continue;
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fi;
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# skip empty lines
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if [ -z "$line" ]; then
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continue;
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fi;
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# for the first screen, we need to init the screen and only set title
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# for the rest we set a new screen with title
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if [ $pos -eq 1 ]; then
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printf "===> * INIT screen with title '%s'\n" "$SCREEN_NAME";
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screen -dmS "$SCREEN_NAME";
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# set title for the first
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screen -r "$SCREEN_NAME" -p $SCREEN_POS -X title "$SCREEN_TITLE";
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else
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screen -r "$SCREEN_NAME" -X screen -t "$SCREEN_TITLE" $SCREEN_POS;
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fi;
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printf "[%2s] + ADD window with title '%s'\n" $SCREEN_POS "$SCREEN_TITLE";
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# run command on it (if there is one)
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if [ -n "$SCREEN_CMD" ]; then
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printf " > RUN command '%s'\n" "$SCREEN_CMD";
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# if ^M is garbled: in vim do: i, ^V, ENTER, ESCAPE
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screen -r "$SCREEN_NAME" -p $SCREEN_POS -X stuff $"$SCREEN_CMD^M";
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fi;
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fi;
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pos=$(( pos+1 ));
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done <<<"$(cat "${1}")";
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