On Wed, 9 May 2007 10:30:18 -0500, "Joshua Ball" wrote: > Is there a difference between HEAD and the working tree? Yes. HEAD is a pointer to committed state. HEAD is an alias for the current branch. > Does HEAD change when I cg-switch/git-checkout? Yes. > What is an object? It's a low-level aspect of git's unified storage model. The various object types, (blob, tree, commit, tag), are defined quite clearly in the documentation. > What the heck is a branch? Simply a pointer to the DAG that moves as new commits are created while "on" that branch. > More on branches: The wiki says that a group of commits linked > together form a DAG. Yes. > Does that mean every fork/clone/branch-create > possibly doubles the number of branches. No. Creating a new branch simply references some existing commit in the DAG already. > So if I fork and then > remerge, do I have two branches? > > A -> B -> D > A -> C -> D No. If you merged you would have history that looks like this: /-> B -\ A D \-> C -/ > Is there a standard revision notation? Yes. See the documentation for git-rev-parse and the section on specifing revisions, (hint: when you run a command like "git log" and see long sequence of hex characters, you can use those (or abbreviated versions of those) to name revisons). You can also do many other things as described in the documentation. [Beyond this point you bring in too many svn misconceptions to make the questions easy to answer.] -Carl
Attachment:
pgp8DNcq7eOtE.pgp
Description: PGP signature
