[PATCH 05/11] status: add warning when a/b calculation takes too long for long/normal format
From: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
---
advice.c | 2 ++
advice.h | 1 +
wt-status.c | 17 +++++++++++++++++
3 files changed, 20 insertions(+)
diff --git a/advice.c b/advice.c
index ce5f374ecd..54f8dea30c 100644
--- a/advice.c
+++ b/advice.c
@@ -12,6 +12,7 @@ int advice_push_needs_force = 1;
int advice_push_unqualified_ref_name = 1;
int advice_status_hints = 1;
int advice_status_u_option = 1;
+int advice_status_ahead_behind_warning = 1;
int advice_commit_before_merge = 1;
int advice_reset_quiet_warning = 1;
int advice_resolve_conflict = 1;
@@ -68,6 +69,7 @@ static struct {
{ "pushUnqualifiedRefName", &advice_push_unqualified_ref_name },
{ "statusHints", &advice_status_hints },
{ "statusUoption", &advice_status_u_option },
+ { "statusAheadBehindWarning", &advice_status_ahead_behind_warning },
{ "commitBeforeMerge", &advice_commit_before_merge },
{ "resetQuiet", &advice_reset_quiet_warning },
{ "resolveConflict", &advice_resolve_conflict },
diff --git a/advice.h b/advice.h
index e50f02cdfe..c86de9b9b8 100644
--- a/advice.h
+++ b/advice.h
@@ -12,6 +12,7 @@ extern int advice_push_needs_force;
extern int advice_push_unqualified_ref_name;
extern int advice_status_hints;
extern int advice_status_u_option;
+extern int advice_status_ahead_behind_warning;
extern int advice_commit_before_merge;
extern int advice_reset_quiet_warning;
extern int advice_resolve_conflict;
diff --git a/wt-status.c b/wt-status.c
index d2a1bec226..c94d43879a 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;
--
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