4. Git Internals

4.1. Objects

• .git/objects/*

• .git/objects/pack/

$ ls .git/objects
09      14      49      7b      94      b4      d8      pack
0c      41      6d      8b      a4      c5      info

$ git show

4.2. gc

$ git gc --aggressive --prune=now
$ ls .git/objects/*
$ ls .git/objects/pack/

4.3. fsck

• Verifies the connectivity and validity of the objects in the database

$ git fsck --full
Checking object directories: 100% (256/256), done.
Checking objects: 100% (10063/10063), done.
dangling blob 47160601b85c1fbc4d0a89f23064f993fe9221cf

$ git gc --aggressive --prune=now
Counting objects: 10239, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (9708/9708), done.
Writing objects: 100% (10239/10239), done.
Total 10239 (delta 6175), reused 3763 (delta 0)

$ git fsck --full
Checking object directories: 100% (256/256), done.
Checking objects: 100% (10239/10239), done.