[PATCH 3/3] Inform about fast-forwarding of submodules during merge

[Stefan Beller]

From: Leif Middelschulte <leif.middelschu...@gmail.com>

Inform the user about an automatically fast-forwarded submodule. The
silent merge behavior was introduced by commit 68d03e4a6e44 ("Implement
automatic fast-forward merge for submodules", 2010-07-07)).

Signed-off-by: Leif Middelschulte <leif.middelschu...@gmail.com>
Signed-off-by: Stefan Beller <sbel...@google.com>
---
 merge-recursive.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/merge-recursive.c b/merge-recursive.c
index 0571919ee0a..29a430c418a 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -1093,10 +1093,26 @@ static int merge_submodule(struct merge_options *o,
        /* Case #1: a is contained in b or vice versa */
        if (in_merge_bases(commit_a, commit_b)) {
                oidcpy(result, b);
+               if (show(o, 3)) {
+                       output(o, 1, _("Fast-forwarding submodule %s to the 
following commit:"), path);
+                       output_commit_title(o, commit_b);
+               } else if (show(o, 2))
+                       output(o, 2, _("Fast-forwarding submodule %s to %s"), 
path, oid_to_hex(b));
+               else
+                       ; /* no output */
+
                return 1;
        }
        if (in_merge_bases(commit_b, commit_a)) {
                oidcpy(result, a);
+               if (show(o, 3)) {
+                       output(o, 1, _("Fast-forwarding submodule %s to the 
following commit:"), path);
+                       output_commit_title(o, commit_a);
+               } else if (show(o, 2))
+                       output(o, 2, _("Fast-forwarding submodule %s to %s"), 
path, oid_to_hex(a));
+               else
+                       ; /* no output */
+
                return 1;
        }
 
-- 
2.17.0.582.gccdcbd54c44.dirty