#!/bin/sh
##    
## Nautilus                        
## SCRIPT: 00_findSTRorSTR_in_dirTEXTFILS_recursive.sh
##                            
## PURPOSE: Finds all files, at all levels under the current directory,
##          that contain a user-specified string(s) --- the strings are separated
##          by a vertical bar (|).
##          This script uses the 'find' command and
##          a separate utility script that uses 'egrep' and skips files that
##          are not text-type files, that is skipping binary files (executables,
##          image files, audio files, video files, etc.).
##               Ref: page 132 of QUE Unix Shell Commands Quick Reference.
##
## HOW TO USE: In Nautilus,
##             click on ANY file (or directory) in a 'navigated to' directory.
##             Right-click on the filename and choose this Nautilus script
##             (name above).
##
## Created: 2011may23 Based on00_findSTR_in_dirTEXTFILS_recursive.sh
## Changed: 

## $1 should be 'quiet' or 'noquiet'.
QUIET="$1"

## FOR TESTING:  (turn ON display of executed-statements)
#  set -x

######################################################################
## Prep a temporary filename, to hold the list of filenames.
## If the user does not have write-permission to the current directory,
## put the list in the /tmp directory.
##   Changed this. If the output file goes in the current directory,
##   the output file is found as one of the files containing the string.
##   So this always put the output file in the /tmp directory.
######################################################################

CURDIR="`pwd`"

## OUTFILE="${USER}_temp_fileLINEScontainingStringS_find-egrep.lis"
## if test ! -w "$CURDIR"
## then
##  OUTFILE="/tmp/$OUTFILE"
## fi

OUTFILE="/tmp/${USER}_temp_fileLINEScontainingStringS_find-egrep.lis"

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


######################################################################
## Exit if the current directory is the root (/) or /usr directory.
######################################################################

if test \( "$CURDIR" = "/" -o "$CURDIR" = "/usr" \)
then
    zenity --question --title "Exiting!" \
           --text "\
Very many directory levels under $CURDIR.
This search Search could take many minutes.
Cancel or OK (Go)?" 
               
  if test $? = 0
  then
     ANS="Yes"
  else
     ANS="No"
  fi

  if test "$ANS"= "No"
  then
     exit
  fi

fi

##############################################
## Prompt for the search stringS, using zenity.
##############################################

    STRINGS=""
    STRINGS=$(zenity --entry --title "STRINGS for search of the text files." \
           --text "\
Enter STRINGS for the (Case-INsensitive) search of TEXT-FILES,
separated by a vertical bar ( | ).
Examples:
      awk|sed|grep|sort
      </tr>|</td>
      <table>|<tr>|<td>|</td>|</tr>|</table>" \
           --entry-text "</tr>|</td>")

    if test "$STRINGS" = ""
    then
       exit
    fi


############################################
## Put a heading in the OUTFILE.
############################################

echo "\
.................... `date '+%Y %b %d  %a  %T%p %Z'` ..........................

Text FILES containing the STRINGS '$STRINGS'
under directory
  $CURDIR


OUTPUT FORMAT:

filename   :
line# : line-image
(one or more line# lines)

filename   :
line# : line-image
(one or more line# lines)

etc. etc.

.................... START OF 'find' OUTPUT ......................
" > "$OUTFILE"


#######################################################################
## Use 'find' to do the search for text files,
## recursively under the current directory.
#######################################################################

 . $HOME/.freedomenv/feNautilusScripts/set_DIR_NautilusScripts.shi

# find . -follow -type f \
#      -exec egrep -ni "$STRINGS" {} \; >> "$OUTFILE"

# find . -follow -type f \
#      -exec $DIR_NautilusScripts/FINDlists/.chk4textfile_egrep.sh \
#            $QUIET "$STRINGS" {} \; >> "$OUTFILE"

find . -follow -type f \
  -exec $DIR_NautilusScripts/FINDlists/.chk4textfile_egrep.sh \
        $QUIET "$STRINGS" {} \; >> "$OUTFILE"


###########################
## Add report 'TRAILER'.
###########################

BASENAME=`basename $0`
DIRNAME=`dirname $0`
HOST_ID="`hostname`"

echo "
.........................  END OF 'find' OUTPUT  ........................

     The output above is from script

$BASENAME

     in directory

$DIRNAME

     which ran the 'find' and 'egrep' commands on host  $HOST_ID .

.............................................................................

The actual command used was

find . -follow -type f  \\
     -exec $DIR_NautilusScripts/FINDlists/.chk4textfile_egrep.sh \\
           $QUIET "$STRINGS" {} \;

where the '.chk4textfile_egrep.sh' script checks that the file is a text-type file,
before using egrep to find the lines in the file that contain the strings.

......................... `date '+%Y %b %d  %a  %T%p %Z'` ........................
" >> "$OUTFILE"


########################################################
## Show the list of directory-names that match the mask.
#######################################################

## FOR TESTING:  (turn ON display of executed-statements)
#   set -x

## . $HOME/.gnome2/nautilus-scripts/.set_VIEWERvars.shi

 . $HOME/.freedomenv/feNautilusScripts/set_DIR_NautilusScripts.shi
 . $DIR_NautilusScripts/.set_VIEWERvars.shi

VIEWERBASE=`basename "$TXTVIEWER"`
if test "$VIEWERBASE" = "xpg"
then
   $TXTVIEWER -f "$OUTFILE"
else
   $TXTVIEWER "$OUTFILE"
fi