git - Staging again files during pre-commit hook? -

i have installed mvn java-formatter:format task in pre-commit hook. task format java source codes.

pushd src/ > /dev/null  mvn java-formatter:format retval=$? if (($retval == 1));         exit 1 fi  popd > /dev/null 

i need append newly formatted source files commit. how can this?

the pre-commit hook should able include git add, modify index committed.

see example "git pre-commit hook, add file index".

try git add -a :/. (see "add if root folder of repository")

if need add files staged, need:

• either add files per pattern
• or filter only staged files, in git add $(git diff --name-only --cached).