myshellconfig/sshs

#!/bin/sh
sshs() {
    ENTRY


    local LOGLEVEL="WARN"
#    MKTMPCMD='mktemp $(echo ${XDG_RUNTIME_DIR}/bashrc.XXXXXXXX.conf)'
#    VIMMKTMPCMD="mktemp ${XDG_RUNTIME_DIR}/vimrc.XXXXXXXX.conf"

    local f
    local TMPBASHCONFIG=$(mktemp -p ${XDG_RUNTIME_DIR} -t bashrc.XXXXXXXX --suffix=.conf)
    local FILELIST=( "${MSC_BASE}/functions.sh" "${MSC_BASE}/logging" "${MSC_BASE}/myshell_load_fortmpconfig" $(getbashrcfile) ~/.aliases "${MSC_BASE}/aliases" "${MSC_BASE}/PS1" "${MSC_BASE}/bash_completion.d/*" )

    logdebug "FILELIST: ${FILELIST[@]}"
    if [ -e "${HOME}/.config/myshellconfig/sshs_addfiles.conf" ] ; then
        for f in $(cat "${HOME}/.config/myshellconfig/sshs_addfiles.conf");do
            [ -e "$f" ] && {\
                logdebug "add $f to FILELIST"; \
                FILELIST+=("$f"); } 
        done
    fi
    logdebug "FILELIST1: ${FILELIST[@]}"
    local SSH_OPTS="-o VisualHostKey=no -o ControlMaster=auto -o ControlPersist=20s -o ControlPath=~/.ssh/master-%C"
    #local SSH_OPTS="-o VisualHostKey=no -o ControlMaster=yes -o ControlPersist=10s -o ControlPath=~/.ssh/ssh-%C"
    # Read /etc/bashrc or /etc/bash.bashrc (depending on distribution) and /etc/profile.d/*.sh first
    #ssh -T ${SSH_OPTS} $@ "pwd" >/dev/null 2>/dev/null || { logerror "Server $@ not reachable -> exit"; return 1; }
    cat << EOF >> "${TMPBASHCONFIG}"
[ -e /etc/bashrc ] && BASHRC=/etc/bashrc
[ -e /etc/bash.bashrc ] && BASHRC=/etc/bash.bashrc
. \$BASHRC

export USERNAME="${USERNAME}"
export FULLNAME="${FULLNAME}"
export USEREMAIL="${USEREMAIL}"
export SCRIPT_LOG="\$(cat /proc/\$$/cmdline | xargs -0 echo|awk '{print \$3}' |sed 's/.conf$/.log/')"
export LOGLEVEL_DEFAULT="${LOGLEVEL_DEFAULT}"
export FILELOGLEVEL_DEFAULT="${FILELOGLEVEL_DEFAULT}"

for i in /etc/profile.d/*.sh; do
    if [ -r "$i" ];then
        if [ "$PS1" ]; then
            . "$i"
        else
            . "$i" >/dev/null
        fi
    fi
done
unset i
EOF

    for f in ${FILELIST[*]}; do
        if [ -e $f ]; then
            logdebug "add $f to tmpconfig"
            cat "$f" >> "${TMPBASHCONFIG}";
        fi
    done
    
    if [ $# -ge 1 ]; then
        if [ -e "${TMPBASHCONFIG}" ] ; then
           logdebug "create remote bashrc"
           logdebug "SSH_OPTS: $SSH_OPTS"
           
           local sshcmd=$(cat << _remote_commands
mktemp -p \${XDG_RUNTIME_DIR-~} -t bashrc.XXXXXXXX --suffix=.conf | tr -d '[:space:]'
echo " "
mktemp -p \${XDG_RUNTIME_DIR-~} -t vimrc.XXXXXXXX --suffix=.conf | tr -d '[:space:]'
echo " "
_remote_commands
)
            local REMOTETMPCONFIGS=($(ssh -T ${SSH_OPTS} $@ "$sshcmd") )
#           local REMOTETMPCONFIGS=($(ssh -T ${SSH_OPTS} $@ "mktemp -p \${XDG_RUNTIME_DIR-~} -t bashrc.XXXXXXXX --suffix=.conf" | tr -d '[:space:]' ) $(ssh -T ${SSH_OPTS} $@ "mktemp -p \${XDG_RUNTIME_DIR-~} -t vimrc.XXXXXXXX --suffix=.conf" | tr -d '[:space:]' ))
           logdebug remote tmp bashrc ${REMOTETMPCONFIGS[0]}
           logdebug remote tmp vimrc ${REMOTETMPCONFIGS[1]}
           #local REMOTETMPBASHCONFIG=$(ssh -T ${SSH_OPTS} $@ "mktemp -p \${XDG_RUNTIME_DIR-~} -t bashrc.XXXXXXXX --suffix=.conf" | tr -d '[:space:]' )
           #logdebug "REMOTETMPBASHCONFIG: $REMOTETMPBASHCONFIG"
#           logdebug $(ssh -T ${SSH_OPTS} $@ "stat ${REMOTETMPBASHCONFIG}")
#           logdebug $(ssh -T ${SSH_OPTS} $@ "hostnamectl")
           #logdebug "create remote vimrc"
           #local REMOTETMPVIMCONFIG=$(ssh -T ${SSH_OPTS} $@ "mktemp -p \${XDG_RUNTIME_DIR-~} -t vimrc.XXXXXXXX --suffix=.conf" | tr -d '[:space:]' )
           #logdebug "REMOTETMPVIMCONFIG: $REMOTETMPVIMCONFIG"

           # Add additional aliases to bashrc for remote-machine
           cat << EOF >> "${TMPBASHCONFIG}"
alias vi='vim -u ${REMOTETMPCONFIGS[1]}'
alias vim='vim -u ${REMOTETMPCONFIGS[1]}'
alias vimdiff='vimdiff -u ${REMOTETMPCONFIGS[1]}'
export LS_OPTIONS="${LS_OPTIONS}"
export VIMRC="${REMOTETMPCONFIGS[1]}"
export BASHRC="${REMOTETMPCONFIGS[0]}"
title "\$USER@\$HOSTNAME: \$PWD"
loginfo "This bash runs with temporary config from \$BASHRC"
EOF

           logdebug "create fill remote bashrc"

ssh -T ${SSH_OPTs} $@ << _remote_cmd
cat <<- 'eof2' > ${REMOTETMPCONFIGS[0]}
$(cat ${TMPBASHCONFIG}) 
eof2
cat <<- 'eof3' > ${REMOTETMPCONFIGS[1]}
$(cat ${MSC_BASE}/vimrc) 
eof3
_remote_cmd
#echo BLA3
            #ssh -T ${SSH_OPTS} $@ "cat > ${REMOTETMPBASHCONFIG}" < "${TMPBASHCONFIG}"
            #ssh -T ${SSH_OPTS} $@ "cat > ${REMOTETMPCONFIGS[0]}" < "${TMPBASHCONFIG}"
            #           logtrace  $(ssh -T ${SSH_OPTS} $@ "stat ${REMOTETMPBASHCONFIG}")
            logdebug "create file remote vimrc"
            #ssh -T ${SSH_OPTS} $@ "cat > ${REMOTETMPVIMCONFIG}" < "${MSC_BASE}/vimrc"
            #ssh -T ${SSH_OPTS} $@ "cat > ${REMOTETMPCONFIGS[1]}" < "${MSC_BASE}/vimrc"
            #local RCMD="/bin/bash --noprofile --norc -c "
            RCMD="
            trap \"rm -f ${REMOTETMPCONFIGS[0]} ${REMOTETMPCONFIGS[1]} ${SCRIPT_LOG}\" EXIT"
#            logdebug "run remote shell with temporary config"
#            #ssh -t ${SSH_OPTS} $@ "$RCMD; SSHS=true bash -c \"function bash () { /bin/bash --rcfile ${REMOTETMPBASHCONFIG} -i ; } ; export -f bash; exec bash --rcfile ${REMOTETMPBASHCONFIG}\""
#            #ssh -t ${SSH_OPTS} $@ "$RCMD; SSHS=true bash --noprofile --norc -c \"function bash () { /bin/bash --rcfile ${REMOTETMPCONFIGS[0]} -i ; } ; export -f bash; exec bash --rcfile ${REMOTETMPCONFIGS[0]}\""
            ssh -t ${SSH_OPTS} $@ "$RCMD;  SSHS=true exec bash --rcfile ${REMOTETMPCONFIGS[0]} -i "
            rm "${TMPBASHCONFIG}"
        else
           logwarn "${TMPBASHCONFIG} does not exist. Using »ssh -t $@«"
           ssh -t "$@" 
        fi
    else
        logwarn "too few arguments for sshs" >&2
        ssh
    fi
    
    EXIT
}