#!/bin/sh
##
## SCRIPT: 02_extractFromSelf_code_forCat2tarfile_ofAppMenusDirs.sh
##
## PURPOSE: Extracts all the bytes after the bottom of this script.
##          Puts the bytes into a temp file. Then ungzips and untars that temp file,
##          into a specified install directory. Also puts a couple of shell include
##          files in a $HOME/.freedomenv subdirectory.
##
##          To do the self-extract, this script
##          uses 'tail -n +LINENUM', where LINENUM is the
##          number of lines to the bottom of this script, plus 1.
##
##  ******* NOTE!!! If you edit this script, reset that number, if need be.
##  ******* !!!!!!! AND ALWAYS reset the release date in the INSTALLDIR var.
##
##          This script is meant to be concatenated with a
##          gzipped tar file --- making a new script file.
##
##          (Do chmod 755 on that new file, to do the install with that combined
##           script-and-gzipped-tar file.)
##
##  Example (continued onto a 2nd line):
##
##  1) cat 02_extractFromSelf_code_forCat2tarfile_ofAppMenusDirs.sh feAppMenus_yyyymmmdd.tar.gz \
##     > extractFromSelf_feAppMenusFiles_yyyymmmdd.sh
##
##--------
##
##  For the user to do an install, download extractFromSelf_feAppMenusFiles_yyyymmmdd.sh,
##  and
##  2) chmod 755 extractFromSelf_feAppMenusFiles_yyyymmmdd.sh
##
##  For the user to do an install, in any dir, run
##  3) ./extractFromSelf_feAppMenusFiles_yyyymmmdd.sh
##
##  That new, concatenated script file, when run by the user-installer, as
##  indicated by steps 2 and 3 above, is then supposed to extract the bytes
##  of the tar-gzipped file and put it into a temp file.
##  Then the script untars the temp file into the install directory, in the
##  'apps' directory of the user's home directory.
##
## Started: 2010sep09 Based on the script for the 'xpg' FE subsystem.
## Changed: 2010sep17 Updated the script for a 2010sep17 release.

## Turn ON display of executed-statements.
  set -x

##############################################
## Make the $HOME/apps dir for the user,
## if none exists, at his/her machine.
##############################################

DIR_HOMEAPPS="$HOME/apps"

if test ! -d "$DIR_HOMEAPPS"
then
   mkdir "$DIR_HOMEAPPS"
   chmod 755 "$DIR_HOMEAPPS"
fi

##############################################
## If the dir $HOME/apps is not writable, exit
## --- something is wrong. Probably the user
## has a $HOME/apps dir with wrong permissions.
##############################################

if test ! -w "$DIR_HOMEAPPS"
then
   echo "
No write permission to directory $DIR_HOMEAPPS.
Exiting.
"
   read ANY_KEY_to_exit
   exit
fi

#######################################################
## We set the INSTALLDIR for the particular  **********!!!
## application being installed.              **********!!!
## 
## ** CHECK THIS STATEMENT (esp. release ID) **********!!!
## ** before using this script.              **********!!!
#######################################################

INSTALLDIR="${DIR_HOMEAPPS}/feAppMenus_2011oct05"


##############################################
## If the $INSTALLDIR already exists,
## exit.
##############################################

if test -d "$INSTALLDIR"
then
   echo "
The install directory $INSTALLDIR already exits.
Aborting the install --- exiting the install script.
Rename or remove the existing directory.
"
   read ANY_KEY_to_exit
   exit
fi

##############################################
## Make the $INSTALLDIR for the user,
## if none exists.
##############################################

if test ! -d "$INSTALLDIR"
then
   mkdir "$INSTALLDIR"
   chmod 755 "$INSTALLDIR"
fi


#################################################
## The following several statements are to extract
## the data following the 'exit' statement of
## this script (a tar file concatenated to this
## script) --- at user install time ---
## into a file like
##       /tmp/TEMP_[appname]_tarfile.tgz
#################################################

OUTFILE="/tmp/TEMP_feAppMenus_tarfile.tgz"

if test -f "$OUTFILE"
then
   rm "$OUTFILE"
fi

#######################################################
## NOTE!!! After all editing is done to this file,  ***!!!
## LINENUM var should be set to the number of lines ***!!!
## in this file, PLUS ONE.                          ***!!!
#######################################################
LINENUM=263

tail -n +$LINENUM "$0" > "$OUTFILE"


################################################
## The following several statements help check
## that the extracted file is proper.
################################################

## Check the file type of the extracted file: 
## Is it recognized as a gzipped tar??
file "$OUTFILE"

## Check the size (bytes) of the extracted file: 
## Is it the same as the original gzipped tar file??
ls -l "$OUTFILE"

## Check the table of contents ('t') of the extracted file.
tar ztvf "$OUTFILE"


################################################
## EXTRACT the '.tgz' file into the INSTALLDIR.
################################################

if test -d "$INSTALLDIR"
then
   cd "$INSTALLDIR"
   tar zxvf "$OUTFILE"
fi


##############################################
## Make the $HOME/.freedomenv/feAppMenus/ dir
## and  the $HOME/.freedomenv/common/ dir
## for the 'set_FEDIR.shi' file, if the dirs
## do not exist.
## Copy the '.shi' file into the dirs.
##############################################

DIR_DOTFREEDOM="$HOME/.freedomenv"

if test ! -d "$DIR_DOTFREEDOM"
then
   mkdir "$DIR_DOTFREEDOM"
   chmod 755 "$DIR_DOTFREEDOM"
fi

DIR_DOTFREEDOM1="${DIR_DOTFREEDOM}/common"
if test ! -d "$DIR_DOTFREEDOM1"
then
   mkdir "$DIR_DOTFREEDOM1"
   chmod 755 "$DIR_DOTFREEDOM1"
fi

DIR_DOTFREEDOM2="${DIR_DOTFREEDOM}/feAppMenus"
if test ! -d "$DIR_DOTFREEDOM2"
then
   mkdir "$DIR_DOTFREEDOM2"
   chmod 755 "$DIR_DOTFREEDOM2"
fi

cp "${INSTALLDIR}/includes_sh/set_FEDIR.shi" "$DIR_DOTFREEDOM1"
cp "${INSTALLDIR}/includes_tk/set_feDIR.tki" "$DIR_DOTFREEDOM1"

cp "${INSTALLDIR}/includes_sh/set_FEDIR.shi" "$DIR_DOTFREEDOM2"
cp "${INSTALLDIR}/includes_tk/set_feDIR.tki" "$DIR_DOTFREEDOM2"


#######################################################
## Make the $HOME/apps/bin/ dir, if none exists.
## And make the soft-link(s) to the main executable(s)
## in that 'bin' dir.
######################################################

DIR_APPS_BIN="$HOME/apps/bin"

if test ! -d "$DIR_APPS_BIN"
then
   mkdir "$DIR_APPS_BIN"
   chmod 755 "$DIR_APPS_BIN"
fi

if test -f "${DIR_APPS_BIN}/feAppMenus"
then
   rm "${DIR_APPS_BIN}/feAppMenus"
fi

ln -s -f "${INSTALLDIR}/scripts/feAppMenus" "${DIR_APPS_BIN}/feAppMenus"


############################################################
## Soft-links to 'xpg', 'fecolorsel', and 'fefontsel'
## may be in $HOME/apps/bin/ because of an FE 'xpg' install
## --- or an 'feHandyTools' install.
##
## To (hopefully) avoid confusion to the user, we only
## make the soft-link(s) to the same-name scripts in
## 'feAppMenus' if the links do not exist already.
############################################################
##       This may STILL cause confusion. May need to remove
##       previously existing links and replace with these
##       --- since these will probably be more up-to-date.
############################################################

if test ! -f "${DIR_APPS_BIN}/xpg"
then
   ln -s -f "${INSTALLDIR}/scripts/xpg" "${DIR_APPS_BIN}/xpg"
fi

if test ! -f "${DIR_APPS_BIN}/fecolorsel"
then
   ln -s -f "${INSTALLDIR}/scripts/fecolorsel" "${DIR_APPS_BIN}/fecolorsel"
fi

if test ! -f "${DIR_APPS_BIN}/fefontsel"
then
   ln -s -f "${INSTALLDIR}/scripts/fefontsel" "${DIR_APPS_BIN}/fefontsel"
fi


read ANY_KEY_to_exit

exit