Re: Bug: "git checkout -b" should be allowed in empty repo

[demerphq <demerphq@gmail.com>]

On 31 January 2012 11:01, Johannes Sixt <j.sixt@viscovery.net> wrote:
> Am 1/31/2012 9:57, schrieb Michael Haggerty:
>> No, the idea is to avoid special casing by making 0{40} into a real (but
>> empty) revision.
>
> But then why not just have git init perform the equivalent of
>
>  c=$(echo "Start" | git commit-tree $empty_tree_sha1) &&
>  git update-ref refs/heads/master $c
>
> People who dislike an empty initial commit can always use "git commit
> --amend" for the first "real" commit.

Because it would then violate a system invariant that all commits are
descendants of the root commit.

You can model a git commit graph as a pathway through multidimensional
space of all possible commit trees. From that perspective it makes
sense that every pathway starts at the origin point of the
multidimensional space, which is conceptually the same as the proposed
root commit.

Anyway, I am not saying it should change, just that from some point of
views it makes a lot of sense.

Yves

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