add checks for consistency

It works ok, but man, git is good

1 files changed, 28 insertions, 2 deletions

diff --git a/exp/exp.sh b/exp/exp.sh
index 9edf367..59a5ef1 100755
--- a/exp/exp.sh
+++ b/exp/exp.sh
@@ -1,6 +1,7 @@
 #!/bin/bash
 
 # This script expects the following variables to be exported:
+# - DNA_BACKUP: the path to dna-backup binary
 # - REPO_PATH: the path of the repo the experiment is based on
 # - MAX_VERSION: the max number for versions for the experiment
 # - COMMITS: the name of the file that contains the lists of versions
@@ -20,10 +21,35 @@ do
 	$GITC checkout $hash
 
 	# create diff for this version
-	$GITC diff --minimal --binary --unified=0 $prev | gzip > $DIFFS/$i.diff.gz
+	$GITC diff --minimal --binary --unified=0 $prev \
+	| gzip \
+	> "$DIFFS/$i.diff.gz"
 
 	# create backup for this version
-	../dna-backup commit -v 2 $REPO_PATH $BACKUP
+	$DNA_BACKUP commit -v 2 $REPO_PATH $BACKUP
+
+	if [[ $(( $i % 4 )) == 0 ]]
+	then
+		# check diff correctness
+		TEMP=$(mktemp -d)
+		for n in $(seq 0 $i)
+		do
+			cat "$DIFFS/$n.diff.gz" \
+			| gzip --decompress \
+			| git -C $TEMP apply --binary --unidiff-zero --whitespace=nowarn - \
+			|| echo "Git patchs do not match source"
+		done
+		cp $REPO_PATH/.git $TEMP/
+		diff --brief --recursive $REPO_PATH $TEMP \
+		|| echo "dna-backup restore do not match source"
+		rm -rf $TEMP
+
+		# check backup correctness
+		TEMP=$(mktemp -d)
+		$DNA_BACKUP restore -v 2 $BACKUP $TEMP
+		diff --brief --recursive $REPO_PATH $TEMP
+		rm -rf $TEMP
+	fi
 
 	prev=$hash
 	let i++