# Concepts

1. Outils
1. Concepts

## Outils

### Hachage

::: incremental
* SHA-1
* SHA-256
:::

::: notes
* versions ≥ 2.42 rétro-compatibles
:::

### Pointeurs

* branches
* étiquettes

# {-}
## Concepts

### Zones

::: incremental
* répertoire de travail
* index
* historique
:::

# Commandes

1. Bases
1. Local
1. Collaborer

## Bases

### git init

* bare | non-bare

### git config

* system → global → local
* user name & email
* description

### git status

* -u

# {-}
## Local

### Commandes

* git branch --force
* git add
* git commit
* git checkout | switch
* git worktree
* git merge
  * fast-forward
  * three-way
* git rebase
  * as-is
  * merge-squash
  * cherry-pick
  * interactive
* git reflog

# {-}
## Collaborer

### Commandes

* git remote | clone
* git fetch | pull
* git push
* git tag

# Composants

1. Basique
1. Pointeurs
1. Objets

## Basique

* .git/

  ::: incremental
  * config
  * description
  :::

# {-}
## Pointeurs

* .git/refs/

  ::: incremental
  1. heads/branch
  1. remotes/remote/branch
  1. tags/tag
  :::

# {-}
## Objets

  * .git/objects
  * git cat-file -t|-p hash
  * git update-ref refs/heads/dev hash
  * git symbolic-ref HEAD refs/heads/main
  * git hash-object -w file
  * git update-index
  * git write-tree
  * git commit-tree