Alexander Kulyakhtin Alexander Kulyakhtin - 2 months ago 13
Git Question

Why do I need hg update after hg pull while in git I'm doing only git pull

In

git
to pull and use the latest changes to my local repository I'm using
git pull
.

In
hg
, I also use
hg pull
but it prints then

run 'hg update' to get a working copy

I do run
hg update
but I wonder why is this difference from
git
?

Answer

The other answers don't actually answer the question, which is: why don't Git and Mercurial work the same? Is there a philosophical difference?

In Mercurial, pull is the opposite of push: it syncs the local repo with a remote repo without touching the working copy. So it's more consistent.

In Git, pull is a fetch plus a merge, or a pull plus an update in Mercurial terms. Usually this is what you want. So it's more efficient.

The Distributed Version Control University talk has a slide at the 4-minute mark that clearly demonstrates the way Mercurial works. Michael Ernst's Version control concepts and best practices has a similar diagram (included below):

Distributed version control