[PATCH v4 11/19] rebase: add REBASE_DEFAULT

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By introducing a default we can distinguish when the user has forced an
option.

Therefore there's no need for an extra "default_mode" variable (it's the
same as opt_rebase == REBASE_DEFAULT), not is there any need to
initialize opt_rebase to an invalid value.

Signed-off-by: Felipe Contreras <felipe.contreras@xxxxxxxxx>
---
 builtin/pull.c | 24 ++++++++++--------------
 rebase.h       |  3 ++-
 2 files changed, 12 insertions(+), 15 deletions(-)

diff --git a/builtin/pull.c b/builtin/pull.c
index f5bdae680f..350df6f3c5 100644
--- a/builtin/pull.c
+++ b/builtin/pull.c
@@ -27,8 +27,6 @@
 #include "commit-reach.h"
 #include "sequencer.h"
 
-static int default_mode;
-
 /**
  * Parses the value of --rebase. If value is a false value, returns
  * REBASE_FALSE. If value is a true value, returns REBASE_TRUE. If value is
@@ -76,7 +74,7 @@ static char *opt_progress;
 static int recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
 
 /* Options passed to git-merge or git-rebase */
-static enum rebase_type opt_rebase = -1;
+static enum rebase_type opt_rebase;
 static char *opt_diffstat;
 static char *opt_log;
 static char *opt_signoff;
@@ -348,9 +346,7 @@ static enum rebase_type config_get_rebase(void)
 	if (!git_config_get_value("pull.rebase", &value))
 		return parse_config_rebase("pull.rebase", value, 1);
 
-	default_mode = 1;
-
-	return REBASE_FALSE;
+	return REBASE_DEFAULT;
 }
 
 /**
@@ -445,7 +441,7 @@ static void NORETURN die_no_merge_candidates(const char *repo, const char **refs
 	const char *remote = curr_branch ? curr_branch->remote_name : NULL;
 
 	if (*refspecs) {
-		if (opt_rebase)
+		if (opt_rebase >= REBASE_TRUE)
 			fprintf_ln(stderr, _("There is no candidate for rebasing against among the refs that you just fetched."));
 		else
 			fprintf_ln(stderr, _("There are no candidates for merging among the refs that you just fetched."));
@@ -458,7 +454,7 @@ static void NORETURN die_no_merge_candidates(const char *repo, const char **refs
 			repo);
 	} else if (!curr_branch) {
 		fprintf_ln(stderr, _("You are not currently on a branch."));
-		if (opt_rebase)
+		if (opt_rebase >= REBASE_TRUE)
 			fprintf_ln(stderr, _("Please specify which branch you want to rebase against."));
 		else
 			fprintf_ln(stderr, _("Please specify which branch you want to merge with."));
@@ -473,7 +469,7 @@ static void NORETURN die_no_merge_candidates(const char *repo, const char **refs
 			remote_name = _("<remote>");
 
 		fprintf_ln(stderr, _("There is no tracking information for the current branch."));
-		if (opt_rebase)
+		if (opt_rebase >= REBASE_TRUE)
 			fprintf_ln(stderr, _("Please specify which branch you want to rebase against."));
 		else
 			fprintf_ln(stderr, _("Please specify which branch you want to merge with."));
@@ -956,7 +952,7 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
 	if (!opt_ff)
 		opt_ff = xstrdup_or_null(config_get_ff());
 
-	if (opt_rebase < 0)
+	if (!opt_rebase)
 		opt_rebase = config_get_rebase();
 
 	if (read_cache_unmerged())
@@ -968,7 +964,7 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
 	if (get_oid("HEAD", &orig_head))
 		oidclr(&orig_head);
 
-	if (opt_rebase) {
+	if (opt_rebase >= REBASE_TRUE) {
 		int autostash = config_autostash;
 		if (opt_autostash != -1)
 			autostash = opt_autostash;
@@ -1028,12 +1024,12 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
 			die(_("Cannot merge multiple branches into empty head."));
 		return pull_into_void(merge_heads.oid, &curr_head);
 	}
-	if (opt_rebase && merge_heads.nr > 1)
+	if (opt_rebase >= REBASE_TRUE && merge_heads.nr > 1)
 		die(_("Cannot rebase onto multiple branches."));
 
 	can_ff = get_can_ff(&orig_head, &merge_heads.oid[0]);
 
-	if (default_mode && !can_ff && opt_verbosity >= 0 && (!opt_ff || !strcmp(opt_ff, "--ff"))) {
+	if (!opt_rebase && !can_ff && opt_verbosity >= 0 && (!opt_ff || !strcmp(opt_ff, "--ff"))) {
 		advise(_("Pulling without specifying how to reconcile divergent branches is discouraged;\n"
 			"you need to specify if you want a merge, or a rebase.\n"
 			"You can squelch this message by running one of the following commands:\n"
@@ -1048,7 +1044,7 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
 			"Read \"git pull --help\" for more information."));
 	}
 
-	if (opt_rebase) {
+	if (opt_rebase >= REBASE_TRUE) {
 		int ret = 0;
 
 		struct object_id newbase;
diff --git a/rebase.h b/rebase.h
index cc723d4748..34d4acfd74 100644
--- a/rebase.h
+++ b/rebase.h
@@ -3,7 +3,8 @@
 
 enum rebase_type {
 	REBASE_INVALID = -1,
-	REBASE_FALSE = 0,
+	REBASE_DEFAULT = 0,
+	REBASE_FALSE,
 	REBASE_TRUE,
 	REBASE_PRESERVE,
 	REBASE_MERGES,
-- 
2.29.2




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