Changed grep -oP to grep -oE for better mac compatibility.

Dumper/gitdumper.sh

@@ -66,7 +66,7 @@ function download_item() {
     local target="$BASEGITDIR$objname"
 
     #Create folder
-    dir=$(echo "$objname" | grep -oP "^(.*)/")
+    dir=$(echo "$objname" | grep -oE "^(.*)/")
     if [ $? -ne 1 ]; then
         mkdir -p "$BASEGITDIR/$dir"
     fi
@@ -97,20 +97,20 @@ function download_item() {
 		fi
 
 		#Parse output of git cat-file -p $hash
- 		hashes+=($(git cat-file -p "$hash" | grep -oP "([a-f0-9]{40})"))
+ 		hashes+=($(git cat-file -p "$hash" | grep -oE "([a-f0-9]{40})"))
 
 		cd "$cwd"
 	fi 
 
     #Parse file for other objects
-    hashes+=($(cat "$target" | grep -oP "([a-f0-9]{40})"))
+    hashes+=($(cat "$target" | grep -oE "([a-f0-9]{40})"))
     for hash in ${hashes[*]}
     do
         QUEUE+=("objects/${hash:0:2}/${hash:2}")
     done
 
     #Parse file for packs
-    packs+=($(cat "$target" | grep -oP "(pack\-[a-f0-9]{40})"))
+    packs+=($(cat "$target" | grep -oE "(pack\-[a-f0-9]{40})"))
     for pack in ${packs[*]}
     do 
         QUEUE+=("objects/pack/$pack.pack")

Extractor/extractor.sh

@@ -25,9 +25,9 @@ function traverse_tree() {
     #Read blobs/tree information from root tree
 	git ls-tree $tree |
 	while read leaf; do
-		type=$(echo $leaf | grep -oP "^\d+\s+\K\w{4}");
-		hash=$(echo $leaf | grep -oP "^\d+\s+\w{4}\s+\K\w{40}");
-		name=$(echo $leaf | grep -oP "^\d+\s+\w{4}\s+\w{40}\s+\K.*");
+		type=$(echo $leaf | grep -oE "^\d+\s+\K\w{4}");
+		hash=$(echo $leaf | grep -oE "^\d+\s+\w{4}\s+\K\w{40}");
+		name=$(echo $leaf | grep -oE "^\d+\s+\w{4}\s+\w{40}\s+\K.*");
 
         # Get the blob data 
 		git cat-file -e $hash;