evil ssh wrapper

gistfile1.sh

# this function is a ticket to hell, each time you connect
# somewhere, it records a log of when you connect and disconnect
ssh() {
  
  # create a file, for ssh to let us know the hostname
  ssh_hostname_tmp=$(mktemp)
  ssh_username_tmp=$(mktemp)
  ssh_port_tmp=$(mktemp)

  # why do I need a fifo, see below, hint: controll flow from hell
  ssh_adquire_hostname=$(mktemp -u)
  mkfifo "$ssh_adquire_hostname"

  # the pipe read will block till ssh writes the hostname, it get's on
  # the background, and voila, when ssh connects, the backlog is updated
  (
  xargs -I{} -n1 backlog ssh "{} -> connect" < "$ssh_adquire_hostname" && \
    rm "$ssh_adquire_hostname" &
  ) 2>&1 >/dev/null 

  # ssh will get all original parameters, plus the instruction of writing
  # the hostname to a file, by doing this, you can avoid scavenging
  # parameters, the cost is that, doing scavenging will by far cleaner
  env ssh "$@" \
    -o LocalCommand="echo %n | tee $ssh_hostname_tmp > $ssh_adquire_hostname;
                     echo %r > $ssh_username_tmp; echo %p > $ssh_port_tmp" \
    -o PermitLocalCommand=yes

  ssh_hostname=$(cat $ssh_hostname_tmp)
  # the temp file is discarded as soon as it's read
  rm "$ssh_hostname_tmp"

  ssh_username=$(cat $ssh_username_tmp)
  rm "$ssh_username_tmp"

  ssh_port=$(cat $ssh_port_tmp)
  rm "$ssh_port_tmp"

  # the ssh command was blocking, we reach here just after the disconnect
  backlog ssh "$ssh_hostname -> disconnect" 2>&1 >/dev/null


  # the rest of the code is even worse, so just run away now
  return
 
  # now we will be commiting files to the backlog repo

  backlog_dir=$(backlog -e)
  history_dst="$backlog_dir/bash_histories/$ssh_hostname/bash_history_$(_date)" 

  mkdir -p "$backlog_dir/bash_histories/$ssh_hostname/" 2>&1 >/dev/null

  # we get a bash_history copy inside the repo
  scp -P "$ssh_port" "$ssh_username@$ssh_hostname":./.bash_history \
    "$history_dst" 2>&1 >/dev/null

  # if we have a copy and git, it gets commited
  if [ -e "$history_dst" ] && [ -e "$backlog_dir/.git" ] && \
    which git 2>&1 >/dev/null; then

    cd "$backlog_dir"
    git add -A "./bash_histories/$1"
    backlog ssh "$ssh_hostname -> bash_history copy commited to $history_dst" \
      2>&1 >/dev/null

  fi
}