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[PATCH 4/8] cmd_merge: convert to single exit point

From
Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Date
Nov 17, 2011, 09:32 UTC
Message-ID
<1321522335-24193-5-git-send-email-pclouds@gmail.com>
In-Reply-To
<1321522335-24193-1-git-send-email-pclouds@gmail.com>
This makes post-processing easier.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/merge.c |   48 +++++++++++++++++++++++++++++-------------------
 1 files changed, 29 insertions(+), 19 deletions(-)
diff --git a/builtin/merge.c b/builtin/merge.c
index 519e3c5..0d597b3 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -1082,7 +1082,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 	struct commit *head_commit;
 	struct strbuf buf = STRBUF_INIT;
 	const char *head_arg;
-	int flag, i;
+	int flag, i, ret = 0;
 	int best_cnt = -1, merge_was_ok = 0, automerge_was_ok = 0;
 	struct commit_list *common = NULL;
 	const char *best_strategy = NULL, *wt_strategy = NULL;
@@ -1121,7 +1121,8 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 			die(_("There is no merge to abort (MERGE_HEAD missing)."));
 
 		/* Invoke 'git reset --merge' */
-		return cmd_reset(nargc, nargv, prefix);
+		ret = cmd_reset(nargc, nargv, prefix);
+		goto done;
 	}
 
 	if (read_cache_unmerged())
@@ -1205,7 +1206,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 		read_empty(remote_head->sha1, 0);
 		update_ref("initial pull", "HEAD", remote_head->sha1, NULL, 0,
 				DIE_ON_ERR);
-		return 0;
+		goto done;
 	} else {
 		struct strbuf merge_names = STRBUF_INIT;
 
@@ -1292,7 +1293,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 		 * but first the most common case of merging one remote.
 		 */
 		finish_up_to_date("Already up-to-date.");
-		return 0;
+		goto done;
 	} else if (allow_fast_forward && !remoteheads->next &&
 			!common->next &&
 			!hashcmp(common->item->object.sha1, head_commit->object.sha1)) {
@@ -1313,15 +1314,16 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 			strbuf_addstr(&msg,
 				" (no commit created; -m option ignored)");
 		o = want_commit(sha1_to_hex(remoteheads->item->object.sha1));
-		if (!o)
-			return 1;
-
-		if (checkout_fast_forward(head_commit->object.sha1, remoteheads->item->object.sha1))
-			return 1;
+		if (!o ||
+		    checkout_fast_forward(head_commit->object.sha1,
+					  remoteheads->item->object.sha1)) {
+			ret = 1;
+			goto done;
+		}
 
 		finish(head_commit, o->sha1, msg.buf);
 		drop_save();
-		return 0;
+		goto done;
 	} else if (!remoteheads->next && common->next)
 		;
 		/*
@@ -1339,8 +1341,11 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 			git_committer_info(IDENT_ERROR_ON_NO_NAME);
 			printf(_("Trying really trivial in-index merge...\n"));
 			if (!read_tree_trivial(common->item->object.sha1,
-					head_commit->object.sha1, remoteheads->item->object.sha1))
-				return merge_trivial(head_commit);
+					       head_commit->object.sha1,
+					       remoteheads->item->object.sha1)) {
+				ret = merge_trivial(head_commit);
+				goto done;
+			}
 			printf(_("Nope.\n"));
 		}
 	} else {
@@ -1368,7 +1373,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 		}
 		if (up_to_date) {
 			finish_up_to_date("Already up-to-date. Yeeah!");
-			return 0;
+			goto done;
 		}
 	}
 
@@ -1450,9 +1455,11 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 	 * If we have a resulting tree, that means the strategy module
 	 * auto resolved the merge cleanly.
 	 */
-	if (automerge_was_ok)
-		return finish_automerge(head_commit, common, result_tree,
-					wt_strategy);
+	if (automerge_was_ok) {
+		ret = finish_automerge(head_commit, common, result_tree,
+				       wt_strategy);
+		goto done;
+	}
 
 	/*
 	 * Pick the result from the best strategy and have the user fix
@@ -1466,7 +1473,8 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 		else
 			fprintf(stderr, _("Merge with strategy %s failed.\n"),
 				use_strategies[0]->name);
-		return 2;
+		ret = 2;
+		goto done;
 	} else if (best_strategy == wt_strategy)
 		; /* We already have its result in the working tree. */
 	else {
@@ -1485,7 +1493,9 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 	if (merge_was_ok) {
 		fprintf(stderr, _("Automatic merge went well; "
 			"stopped before committing as requested\n"));
-		return 0;
 	} else
-		return suggest_conflicts(option_renormalize);
+		ret = suggest_conflicts(option_renormalize);
+
+done:
+	return ret;
 }
-- 
1.7.4.74.g639db
Previous: Nguyễn Thái Ngọc DuyNext: Ramkumar Ramachandra
Message 5 of 27 in “nd/resolve-ref v2”
  1. 0/8 nd/resolve-ref v2Nguyễn Thái Ngọc Duy, Nov 17, 2011
  2. 1/8 Convert many resolve_ref() calls to read_ref*() and ref_exists()Nguyễn Thái Ngọc Duy, Nov 17, 2011
  3. 2/8 Rename resolve_ref() to resolve_ref_unsafe()Nguyễn Thái Ngọc Duy, Nov 17, 2011
  4. 3/8 Re-add resolve_ref() that always returns an allocated bufferNguyễn Thái Ngọc Duy, Nov 17, 2011
  5. 4/8 cmd_merge: convert to single exit pointNguyễn Thái Ngọc Duy, Nov 17, 2011
  6. Ramkumar RamachandraNov 17, 2011
  7. Jonathan NiederNov 17, 2011
  8. 5/8 Use resolve_ref() instead of resolve_ref_unsafe()Nguyễn Thái Ngọc Duy, Nov 17, 2011
  9. 6/8 Convert resolve_ref_unsafe+xstrdup to resolve_refNguyễn Thái Ngọc Duy, Nov 17, 2011
  10. Ramkumar RamachandraNov 17, 2011
  11. Nguyen Thai Ngoc DuyNov 18, 2011
  12. 7/8 Guard memory overwriting in resolve_ref_unsafe's static bufferNguyễn Thái Ngọc Duy, Nov 17, 2011
  13. 8/8 Enable GIT_DEBUG_MEMCHECK on git_pathname()Nguyễn Thái Ngọc Duy, Nov 17, 2011
  14. Ramkumar RamachandraNov 17, 2011
  15. Jeff KingNov 17, 2011
  16. Nguyen Thai Ngoc DuyNov 18, 2011
  17. Jeff KingNov 18, 2011
  18. Jonathan NiederNov 18, 2011
  19. Nguyen Thai Ngoc DuyNov 18, 2011
  20. Jeff KingNov 18, 2011
  21. Jonathan NiederNov 18, 2011
  22. Johan HerlandNov 18, 2011
  23. Jonathan NiederNov 18, 2011
  24. Junio C HamanoNov 18, 2011
  25. Bernhard R. LinkNov 18, 2011
  26. Jonathan NiederNov 17, 2011
  27. Nguyen Thai Ngoc DuyDec 6, 2011

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