Remove any previous git-stats code blocks in pre-existing git hook files.

Author: williamboman

scripts/init-git-post-commit

@@ -22,14 +22,13 @@ post_commit_path="${git_hooks_dir}/post-commit"
 mkdir -p "$git_hooks_dir"
 
 hook=$(cat <<EOF
-
 ### git-stats hook (begin) ###
 # Copy last commit hash to clipboard on commit
 commit_hash=\$(git rev-parse HEAD)
 repo_url=\$(git config --get remote.origin.url)
 commit_date=\$(git log -1 --format=%cd)
 commit_data="\"{ \"date\": \"\$commit_date\", \"url\": \"\$repo_url\", \"hash\": \"\$commit_hash\" }\""
-git-stats --record "\$commit_data"
+git-stats --record "\${commit_data}"
 ### git-stats hook (end) ###
 EOF
 );
@@ -40,6 +39,8 @@ if [ ! -f "$post_commit_path" ]; then
 		&& echo "Successfully set up git-stats hook at ${post_commit_path}." \
 		&& exit 0
 else
+	# Remove any previous git-stats hook code blocks
+	perl -i -0pe 's/(([ \t]*# Copy last commit hash to clipboard on commit\s*(\n.*){5}\s*git-stats --record "\$commit_data"\s*)|([ \t]*### git-stats hook \(begin\) ###\s*(\n.*){7}\s*### git-stats hook \(end\) ###\s*))//g' "$post_commit_path"
 	printf "\n%s\n" "$hook" >> "$post_commit_path" \
 		&& echo "Successfully set up git-stats hook at ${post_commit_path}." \
 		&& exit 0