Sync with maint

diff --git a/builtin/checkout.c b/builtin/checkout.c
index 3be00188216f503ea1f9269acd312aebdb72a0fa..7fe0bffaf8b875b40b5e4e0e5c207f978c932691 100644 (file)
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -587,7 +587,7 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
                                   struct branch_info *new)
 {
        struct strbuf msg = STRBUF_INIT;
-       const char *old_desc;
+       const char *old_desc, *reflog_msg;
        if (opts->new_branch) {
                if (opts->new_orphan_branch) {
                        if (opts->new_branch_log && !log_all_ref_updates) {
@@ -620,8 +620,13 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
        old_desc = old->name;
        if (!old_desc && old->commit)
                old_desc = sha1_to_hex(old->commit->object.sha1);
-       strbuf_addf(&msg, "checkout: moving from %s to %s",
-                   old_desc ? old_desc : "(invalid)", new->name);
+
+       reflog_msg = getenv("GIT_REFLOG_ACTION");
+       if (!reflog_msg)
+               strbuf_addf(&msg, "checkout: moving from %s to %s",
+                       old_desc ? old_desc : "(invalid)", new->name);
+       else
+               strbuf_insert(&msg, 0, reflog_msg, strlen(reflog_msg));
 
        if (!strcmp(new->name, "HEAD") && !new->path && !opts->force_detach) {
                /* Nothing to do. */