Re: How to create a new branch based on a tag?

On 10/22/05, Ben Lau [off-list ref] wrote:

Hi,

   I would like to create a branch of my own work based on a specific
kernel version(i.e
v2.6.11). I tried with:

 > git-branch my2.6.11 v2.6.11
error: Object 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c is a tree, not a
commit
fatal: Needed a single revision

What you're after is

   git-rev-parse --verify <tagname>^0  > .refs/heads/mynewbranch

"branches" are very lightweight -- it's a ref containing the SHA1 of
the commit you want it to be at. So if you find the SHA1 of the commit
in gitk or wherever, just

  echo SHA1 > .refs/heads/mynewbranch

and you're sorted. Do git-checkout to switch to it.

cheers,


martin