git 添加。 不工作，但 git add filename.js 工作，为什么以及如何解决它？

Question

Here are the results:

When I execute git add . , the terminal is not responding. I have to use Ctrl+C to get back.

When I execute git add filename.js , it works successfully. This hasn't happened before. Why and how do I fix it?

➜  myproject git:(master) ✗ git status
On branch master
Your branch is up to date with 'origin/master'.

Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

  modified:   app.js
  modified:   workers.js
  modified:   templates/index.pug
  modified:   utils.js

no changes added to commit (use "git add" and/or "git commit -a")
➜  myproject git:(master) ✗ git add . 
^C
➜  myproject git:(master) ✗ git add workers.js 
➜  myproject git:(master) ✗ git status
On branch master
Your branch is up to date with 'origin/master'.

Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

  modified:   workers.js

Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

  modified:   app.js
  modified:   templates/index.pug
  modified:   utils.js

Update:

I have waited more than 3 minutes after git add . , it used to be super fast.

Git version: 2.17.1

Ubuntu version:

No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.2 LTS
Release:    18.04
Codename:   bionic

Answer 1

To debug your issue : git allows you to have more insight on what it is doing if you active some environment variables (full list in the docs ) :

GIT_TRACE_PERFORMANCE=1 git add .

You can also use strace :

strace git add .
# you can dump it in a file (strace prints on stderr by default) :
sttace git add . 2> git_add.strace
# you can add timing information :
strace -tt -T git add . 2> git_add.strace

it will at least show you all the gory details on what files git add . tries to access.