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[PATCH 2/6] remote.c: drop "remote" pointer from "struct branch"

From
Jeff King <peff@peff.net>
Date
Mar 31, 2015, 17:35 UTC
Message-ID
<20150331173555.GB18912@peff.net>
In-Reply-To
<20150331173339.GA17732@peff.net>

When we create each branch struct, we fill in the "remote_name" field from the config, and then fill in the actual "remote" field based on that name. However, it turns out that nobody really cares about this field. The only two sites that access it are:

  1. git-merge, which uses it to notice when the branch does
     not have a remote defined. But we can easily replace this
     with looking at remote_name instead.
  2. remote.c itself, when setting up the @{upstream} merge
     config. But we don't need to save the "remote" for
     that; we can just look it up for the duration of the
     operation.

Getting rid of it drops one potential source of confusion: is the value the match for "remote_name", or is it the remote we would fetch from when on that branch (i.e., does it fall back to "origin")?

When we add pushremote_name, this question would get even more confusing, as pushremotes have a more complicated lookup procedure. It would be nice for the code to be consistent between the remote and pushremote, and this takes us one step closer.

Signed-off-by: Jeff King <peff@peff.net>
---
 builtin/merge.c |  2 +-
 remote.c        | 14 ++++++++------
 remote.h        |  1 -
 3 files changed, 9 insertions(+), 8 deletions(-)
diff --git a/builtin/merge.c b/builtin/merge.c
index 3b0f8f9..1840317 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -955,7 +955,7 @@ static int setup_with_upstream(const char ***argv)
 
 	if (!branch)
 		die(_("No current branch."));
-	if (!branch->remote)
+	if (!branch->remote_name)
 		die(_("No remote for the current branch."));
 	if (!branch->merge_nr)
 		die(_("No default upstream defined for the current branch."));
diff --git a/remote.c b/remote.c
index fcd868d..d5fd605 100644
--- a/remote.c
+++ b/remote.c
@@ -1633,15 +1633,20 @@ void set_ref_status_for_push(struct ref *remote_refs, int send_mirror,
 
 static void set_merge(struct branch *ret)
 {
+	struct remote *remote;
 	char *ref;
 	unsigned char sha1[20];
 	int i;
 
+	if (!ret->remote_name || !ret->merge_nr)
+		return;
+	remote = remote_get(ret->remote_name);
+
 	ret->merge = xcalloc(ret->merge_nr, sizeof(*ret->merge));
 	for (i = 0; i < ret->merge_nr; i++) {
 		ret->merge[i] = xcalloc(1, sizeof(**ret->merge));
 		ret->merge[i]->src = xstrdup(ret->merge_name[i]);
-		if (!remote_find_tracking(ret->remote, ret->merge[i]) ||
+		if (!remote_find_tracking(remote, ret->merge[i]) ||
 		    strcmp(ret->remote_name, "."))
 			continue;
 		if (dwim_ref(ret->merge_name[i], strlen(ret->merge_name[i]),
@@ -1661,11 +1666,8 @@ struct branch *branch_get(const char *name)
 		ret = current_branch;
 	else
 		ret = make_branch(name, 0);
-	if (ret && ret->remote_name) {
-		ret->remote = remote_get(ret->remote_name);
-		if (ret->merge_nr)
-			set_merge(ret);
-	}
+	if (ret)
+	       set_merge(ret);
 	return ret;
 }
 
diff --git a/remote.h b/remote.h
index 02d66ce..4bb6672 100644
--- a/remote.h
+++ b/remote.h
@@ -203,7 +203,6 @@ struct branch {
 	const char *refname;
 
 	const char *remote_name;
-	struct remote *remote;
 
 	const char **merge_name;
 	struct refspec **merge;
-- 
2.4.0.rc0.363.gf9f328b
Previous: Jeff KingNext: Junio C Hamano
Message 5 of 18 in “implement @{push} shorthand”
  1. 0/6 implement @{push} shorthandJeff King, Mar 31, 2015
  2. 1/6 remote.c: drop default_remote_name variableJeff King, Mar 31, 2015
  3. Junio C HamanoMar 31, 2015
  4. Jeff KingMar 31, 2015
  5. 2/6 remote.c: drop "remote" pointer from "struct branch"Jeff King, Mar 31, 2015
  6. Junio C HamanoMar 31, 2015
  7. Jeff KingMar 31, 2015
  8. Junio C HamanoMar 31, 2015
  9. 3/6 remote.c: hoist branch.*.remote lookup out of remote_get_1Jeff King, Mar 31, 2015
  10. 4/6 remote.c: provide per-branch pushremote nameJeff King, Mar 31, 2015
  11. Junio C HamanoMar 31, 2015
  12. 5/6 sha1_name: refactor upstream_markJeff King, Mar 31, 2015
  13. 6/6 sha1_name: implement @{push} shorthandJeff King, Mar 31, 2015
  14. Junio C HamanoMar 31, 2015
  15. Jeff KingMar 31, 2015
  16. Junio C HamanoMar 31, 2015
  17. Eric SunshineMar 31, 2015
  18. Jeff KingMar 31, 2015

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