Merci, j'ai eu ma réponse ici (3 ème réponse sur ton lien stackoverflow)
En gros gitignore
Explanation
Git is really good at huge histories of small text files because it can store them and their changes efficiently. At the same time, git is very bad at binary files, and will naïvely store separate copies of the file (by default, at least). The repository gets huge, and then it gets slow, as you've observed.
This is a common problem among DVCS's, exacerbated by the fact that you download every version of every file ("the whole repository" ) every time you clone. The guys at Kiln are working on a plugin to treat these large files more like Subversion, which only downloads historical versions on-demand.
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