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-rw-r--r--wt-status.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/wt-status.c b/wt-status.c
index 0bccef5..d4e45f9 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -19,6 +19,8 @@
#include "lockfile.h"
#include "sequencer.h"
+#define AB_DELAY_WARNING_IN_MS (2 * 1000)
+
static const char cut_line[] =
"------------------------ >8 ------------------------\n";
@@ -1085,14 +1087,29 @@ static void wt_longstatus_print_tracking(struct wt_status *s)
struct branch *branch;
char comment_line_string[3];
int i;
+ uint64_t t_begin = 0;
assert(s->branch && !s->is_initial);
if (!skip_prefix(s->branch, "refs/heads/", &branch_name))
return;
branch = branch_get(branch_name);
+
+ t_begin = getnanotime();
+
if (!format_tracking_info(branch, &sb, s->ahead_behind_flags))
return;
+ if (advice_status_ahead_behind_warning &&
+ s->ahead_behind_flags == AHEAD_BEHIND_FULL) {
+ uint64_t t_delta_in_ms = (getnanotime() - t_begin) / 1000000;
+ if (t_delta_in_ms > AB_DELAY_WARNING_IN_MS) {
+ strbuf_addf(&sb, _("\n"
+ "It took %.2f seconds to compute the branch ahead/behind values.\n"
+ "You can use '--no-ahead-behind' to avoid this.\n"),
+ t_delta_in_ms / 1000.0);
+ }
+ }
+
i = 0;
if (s->display_comment_prefix) {
comment_line_string[i++] = comment_line_char;