git ls-tree output of working directory?

Question

I am looking for a way to have output in the same manner as ls-tree, but of my working directory. Whenever I run git ls-tree . it says fatal: Not a valid object name .

Answer 1

This is similar to @mikel's answer, but uses git stash create and ls-tree, as requested by the OP. Also avoids using git reset, which is more likely to break things for the inexperienced user.

This however only works for tracked files.

git ls-tree `git diff --quiet && echo HEAD || git stash create ls-tree` 

This will leave a dangling commit, which will should eventually be removed by git gc. (Actually two dangling commits.) Of course you could search for dangling commits containing ls-tree, but I haven't found a simple way to do so (at least not without quite a bit of sed and grep magic - suggestions welcome ).

Explanation

git ls-tree needs a hash. If the tree is clean (git diff --quiet returns 0) one can use HEAD. If it isn't, git stash create will create a commit and return it's hash.

Untracked

Unfortunately git stash create does not support -a/-u or other flags. Thus it's not possible to show the hashes of untracked files. Getting their information is a bit more complicated:

git stash -a
git ls-tree stash
git ls-tree stash^3
git stash pop

This will first show tracked files (git ls-tree stash) and then untracked files (git ls-tree stash^3). torek provides a good explanation why stash^3 is needed.

Answer 2

Tried to find something which is not touching the git repo.

This one is not git only and depends on linux like 'grep'

#from root of repo dir
git ls-tree -r HEAD 
#other dirs
git ls-tree -r HEAD | grep <relative_path_to_repo_root>/
# eg
git ls-tree -r HEAD | grep src/

Also found following (git only) working in subdirectories of repo root

git ls-tree -r --full-name HEAD

However man page (man git-ls-tree) is irritating git logic

   --full-name
       Instead of showing the path names relative to the current working directory, show the full path names.

   --full-tree
       Do not limit the listing to the current working directory. Implies --full-name.