merge and check folders

check_delivery.sh

#!/bin/bash
#checks and merges 2 folders

output_file="output.txt"
sep_chr="----"
c_dir=$( pwd )
n_args=2 #minimum number of args
mmerge=0
#some colors
text_green=$(tput setaf 2)
text_red=$(tput setaf 1)
text_reset=$(tput sgr0)

#print usage
function usage {
	echo Usage:
	echo "./check_delivery.sh [OPTION] <dir1> <dir2>"
	echo OPTION=
	echo "	 -m --merge = create new merged directory, with merged directories (newer content only)"
	echo "	 -h --help = prints usage information"
}

#total number of files
# $1 dir1
# $2 dir2
function num_files {
	local numfiles1=$( find $1 -type f | wc -l )
	local numfiles2=$( find $2 -type f | wc -l )
	local numdirs1=$( find $1 -type d | wc -l )
	local numdirs2=$( find $2 -type d | wc -l )

	echo Total dirs:  $numdirs1 $sep_chr $numdirs2 >>$output_file
	echo Total files: $numfiles1 $sep_chr $numfiles2 >>$output_file

	echo >>$output_file
	echo >>$output_file
}

#check merged files
# $1 - dir1
# $2 - dir2

#Checks:
#file name
#file size: stat --format=%s $file
#last mod date: stat --format=%Y $file
#file type: file -b $file

function merge_check 
{
	echo -n Checking files from $1
	local count=0
	local errors=0
	cd $c_dir
	cd $1 #set first dir as current dir -> to get same path (path prefixes might differ)
	for file1 in $( find -type f ); do
		let "count += 1"
		#get check data for first file
		filename1=$(basename $file1)
		#weird error on stat...
		#filedate1=$(stat --format=%Y $file1)
		filetype1=$(file -b $file1)		
		
		cd $c_dir 
		cd $2 #check with second folder
		file2=$(find -type f | grep $file1)
		if [[ "$file2" == "" ]]; then
			echo
			echo "$text_red $file1 is in $1, but is MISSING from merged folder  $text_reset"
			let "errors += 1"
			continue
		fi
		#get check data for second file
		filename2=$(basename $file2)
		#filedate2=$(stat --format=%Y $file2) #don't use for now
		filetype2=$(file -b $file2)
		
		#check for equality
		#echo Checking $file1 against $file2
		echo -n .
		
		if [[ "$filename1" != "$filename2" || "$filetype1" != "$filetype2" ]]; then
			echo "$text_red $file1 --IS DIFFERENT-- $file2 :"
			echo "	$filename1 ---- $filename2"
			echo "	$filetype1 ---- $filetype2 $text_reset"
			let "errors += 1"
		fi		
		
	done
	
	echo
	echo -n "Checked $count ->" 
	if [[ $errors != 0 ]]; then
		echo "$text_red ERRORS were found $text_reset"
	else
		echo "$text_green NO ERRORS $text_reset"
	fi
	
	cd $c_dir #back to default dir
}



#main flow
if [[ $# < $n_args  ]]; then
	usage
	exit 1
fi

while [ "$1" != "" ]; do
    case $1 in
        -m | --merge )          shift
                                #do merge copy
                                mmerge=1
                                ;;
        -h | --help )           usage
                                exit
                                ;;
        * )                     break
    esac
done


echo Comparison of contents dir1=$1 dir2=$2 >$output_file

num_files $1 $2

echo diff result: >>$output_file
echo >>$output_file
echo >>$output_file

diff -ry --brief $1 $2 >>$output_file

#merge files (keep newer)
if [[ $mmerge -eq 1 ]]; then
	echo Merging dirs
	if [ -d merged ]; then
		rm -r merged/*
		rm merged
	fi
	mkdir merged
	cp -vfudpr $1/* merged/
	cp -vfudpr $2/* merged/
	echo "Merge completed -> check $(pwd)\\merged directory"
	
	echo Checking merge:
	merge_check "$1" "merged"
	merge_check "$2" "merged"

	#check merged files/dirs
	cd "merged"
	ndirs=$(find -type d | wc -l)
	nfiles=$(find -type f | wc -l)
	echo "Merged dirs: $ndirs"
	echo "Merged files: $nfiles"
	
	cd $c_dir
	echo >>$output_file
	echo "Merged dirs: $ndirs" >>$output_file
	echo "Merged files: $nfiles" >>$output_file
fi