ag -u won't search a submodule if its directory is in .gitignore

[pacenathan]

I work with a git repo that has multiple submodules. For various reasons (important to us, so we can't just change it), some of those subomdule directories are listed in the repo's .gitignore file, on some branches. This somehow causes ag to fail to search into those submodule directories, even with -u.

Running this sequence of commands will demonstrate the issue, if your git install is configured to observe .gitignore inside the repo:

mkdir outer && cd outer && git init
git submodule add [email protected]:ggreer/the_silver_searcher.git
ag -ul valgrind
echo '/the_silver_searcher/' > .gitignore
ag -ul valgrind

The first ag -ul valgrind will find results; the second one will not.