Sanj's Notes

Git Internals


July 17, 2020
tags: Git, Sha-1

https://book.git-scm.com/book/en/v2/Git-Internals-Git-Objects

Plumbing commands #

Put object into the git db #

$ echo 'test content' | git hash-object -w --stdin
d670460b4b4aece5915caf5c68d12f560a9fe3e4
  • -w means actually write it in
  • --stdin required (otherwise the git hash-object command expects filename as 2nd arg)

The key returned is the SHA-1 key used to reference things in the .git/objects/ folder. This hash is 40-characters long with a header (2 chars) and payload (38 chars).

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July 17, 2020