Daniel Barkalow <barkalow@xxxxxxxxxxxx> writes:
> It turns out that .git/branches/foo should fetch into refs/heads/foo.
>
> Signed-off-by: Daniel Barkalow <barkalow@xxxxxxxxxxxx>
> ---
> We still don't have a test for that bit of the behavior, so I could have
> it still doing the wrong thing. But it at least should do what I think
> people want.
>
> Andrew, could you give this a try, on top of current master (or, for that
> matter, any released version that doesn't work), and let me know if it
> does the wrong thing?
To give bystanders a bit of context, Andrew had an old Cogito-style
.git/branches/foo
that had a URL (and no #frag) in it. "git fetch foo" should have fetched
from the 'master' branch of the named repository and stored it in his
refs/heads/foo, and git up to 1.5.3.X series do so correctly, but we had
this uncaught regression in 1.5.4 (the support for "branches" file is not
deprecated, even though I personally do not see a reason to use it in new
repositories).
Now, Daniel, I was independently fixing this one and had a question about
this code.
What is the deal with this "slash" magic? It appears that when you are
fed:
git fetch foo/bar
you look up ".git/branches/foo" for $URL and #$branch, then use "$URL/bar"
as the URL and $branch (or 'master' if you did not see '#') as the branch
to fetch from, and store it in "foo/bar" locally. Is that really what
should have happened? I am reasonably sure about "fetching from $URL/bar"
part, but I am unsure about "store in foo/bar" part.
Any Cogito survivers out there who knows how this was supposed to have
worked? We can go back and look at git-fetch.sh (in contrib/examples),
but I'd rather be lazy ;-)
> remote.c | 15 +++++++--------
> 1 files changed, 7 insertions(+), 8 deletions(-)
>
> diff --git a/remote.c b/remote.c
> index 40ed246..a027bca 100644
> --- a/remote.c
> +++ b/remote.c
> @@ -232,7 +232,7 @@ static void read_branches_file(struct remote *remote)
> {
> const char *slash = strchr(remote->name, '/');
> char *frag;
> - char *branch;
> + struct strbuf branch;
> int n = slash ? slash - remote->name : 1000;
> FILE *f = fopen(git_path("branches/%.*s", n, remote->name), "r");
> char *s, *p;
> @@ -258,17 +258,16 @@ static void read_branches_file(struct remote *remote)
> strcpy(p, s);
> if (slash)
> strcat(p, slash);
> + strbuf_init(&branch, 0);
> frag = strchr(p, '#');
> if (frag) {
> *(frag++) = '\0';
> - branch = xmalloc(strlen(frag) + 12);
> - strcpy(branch, "refs/heads/");
> - strcat(branch, frag);
> - } else {
> - branch = "refs/heads/master";
> - }
> + strbuf_addf(&branch, "refs/heads/%s", frag);
> + } else
> + strbuf_addstr(&branch, "refs/heads/master");
> add_url_alias(remote, p);
> - add_fetch_refspec(remote, branch);
> + strbuf_addf(&branch, ":refs/heads/%s", remote->name);
> + add_fetch_refspec(remote, strbuf_detach(&branch, 0));
> remote->fetch_tags = 1; /* always auto-follow */
> }
--
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