Uploading a base on a shared hosting account

#!/bin/sh
# Version 1, 16/06/2016, Henri
 
# Usage : update-base base_name [ images | src ]
 
# This shell script executes scp and ssh commands with the remote server
# To facilitate these commands, you should install a pair of private/public keys on both machines
# See "how to create a key pair" on the web
 
# If you have not installed your public key on your server, each ssh request will prompt you for a password
 
# An alternative is to supply your password along with the request
# by adding ":password" after username in each occurence of USER@SERVER 
# Be aware that in this case, password is sent in cleartext !!
 
SERVER="ssh.tuxfamily.org"
USER="your user name"
ADDRESS="Your mail address"  # to which error report will be sent
LANGUE="fr"
BASE=""
 
BASES_PC="$HOME/Genea/GeneWeb-Bases"             # Bases location on PC
BASES_SERVER="~/geneweb/demo.geneweb.tuxfamily.org-web/htdocs/bases"    # Bases location on server
BIN_DIR="$HOME/Genea/GeneWeb/GeneWeb-7.00-Mac/gw"   # Binaries (gwd, gwc, ...) location on PC
BIN_DIR_SERVER="~/geneweb/demo.geneweb.tuxfamily.org-web/htdocs/gw"   # Binaries (gwd, gwc, ...) on Server
 
check_errs()
{
  # Function. Parameter 1 is the return code
  # Para. 2 is text to display on failure.
  if [ "${1}" -ne "0" ]; then
    echo "ERROR # ${1} : ${2}"
    # as a bonus, make our script exit with the right error code.
    exit ${1}
  fi
}
 
# define BASE
BASE=$1
FILES=$2
 
if [ "$BASE" = "" ] || [ "$BASE" = "-h" ] || [ "$BASE" = "-help" ]
then
  echo "Usage : update-base base_name [ images | src ]"
  echo "    if 'images' or 'src' are present, only the corresponding folders will"
  echo "    be copied in totality to the server"
  exit
fi
 
 
if [ "$FILES" = "images" ] || [ "$FILES" = "src" ] 
then
  # copy images files to server
  echo "Sending $FILES for $BASE to $SERVER"
  cd $BASES_PC/$FILES
  sed s:BASES_SERVER:$BASES_SERVER:g < $HOME/Genea/remote-files.txt | \
  sed s:BASE:$BASE:g | \
  sed s:ADDRESS:$ADDRESS:g  > ./remote.sh
  touch ./$FILES.tmp
  tar cf ./$BASE-files.tar $BASE ./remote.sh ./$FILES.tmp
  scp ./$BASE-files.tar $USER@$SERVER:$BASE-files.tar
  ssh $USER@$SERVER "tar xf $BASE-files.tar; chmod +x ./remote.sh; ./remote.sh"
  rm -f ./remote.sh
  echo "Done sending $FILES for $BASE to $SERVER"
  exit
fi
 
 
 
mot="n" # default is "no"
# Verify that the images and src/images folder are up to date. 
if [ $LANGUE = "fr" ] 
then
  echo "Cette procédure ne met pas à jour les deux dossiers images"
  echo "Le message de compte-rendu signale les différences dans les dossiers images du serveur et du PC"
  echo "Vous pouvez cependant continuer"
  echo "Pensez aussi à installer $BASE.gwf sur votre serveur"
  echo "Continuer? [o/n]"
else
  echo "This procedure does not update the two images folders"
  echo "It returns through mail a report indicating differences between the server and the PC"
  echo "You may nonetheless proceed"
  echo "Make sure you install the proper $BASE.gwf parameters on your server"
  echo "Proceed? [y/n]"
fi
read mot
if [ "$mot" = "n" ] # or "$mot" = ""
then
  exit
fi
 
echo "Producing a fresh $BASE.gw in $BASES_PC (gwu)"
cd $BASES_PC
$BIN_DIR/gwu ./$BASE -o $BASE.gw > comm.log
check_errs $? "Gwu failed on $BASE, see $BASES_PC/comm.log for details "
 
# Take a copy of current change history to send to server
if [ -f ./$BASE.gwb/history ]
then
  cp -f ./$BASE.gwb/history .
else
  touch ./history
fi
 
# Create a content listing for the images and person images folders
cd   $BASES_PC/src/$BASE
ls > $BASES_PC/ls-src-files.txt
cd   $BASES_PC/src/$BASE/images
ls > $BASES_PC/ls-images.txt
cd   $BASES_PC/images/$BASE
ls > $BASES_PC/ls-personnes.txt
 
cd $BASES_PC
 
# Build a command file to be executed on the server
sed s:BASES_SERVER:$BASES_SERVER:g < $HOME/Genea/remote-base.txt | \
sed s:BASE:$BASE:g | \
sed s:BIN_DIR_SERVER:$BIN_DIR_SERVER:g | \
sed s:ADDRESS:$ADDRESS:g > ./remote.sh
 
echo "Building remote.tar (remote.sh $BASE.gw history s-personnes.txt ls-images.txt ls-src-files.txt)"
tar cf ./$BASE.tar ./remote.sh ./$BASE.gw ./history ./ls-personnes.txt ./ls-images.txt ./ls-src-files.txt
 
echo "Sending remote.tar to $SERVER"
scp ./$BASE.tar $USER@$SERVER:$BASE.tar
echo "$BASE.tar sent"
# Execute a remote command on the server
#     un-tar the file just sent, make remote.sh executable and execute it
ssh $USER@$SERVER "tar xf $BASE.tar; chmod +x ./remote.sh; ./remote.sh"
echo "Tar xf done; remote.sh executed"
 
echo "Cleanup (on local machine)"
rm -f ./remote.* ./history ./ls-*.txt
 
echo "Done updating $BASE on $SERVER"