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trace2: avoid emitting 'def_param' set more than once

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During nested alias expansion it is possible for
"trace2_cmd_list_config()" and "trace2_cmd_list_env_vars()"
to be called more than once.  This causes a full set of
'def_param' events to be emitted each time.  Let's avoid
that.

Add code to those two functions to only emit them once.

Signed-off-by: Jeff Hostetler <jeffhostetler@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff Hostetler 2024-03-07 15:22:28 +00:00 committed by Junio C Hamano
parent 0c1c3c861e
commit 520cf66814
2 changed files with 13 additions and 1 deletions
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2
t/t0211-trace2-perf.sh
View File

@ -470,7 +470,7 @@ test_expect_success 'expect def_params during shell alias expansion' '
grep "d1|main|def_param|.*|ENV_PROP_FOO:blue" actual
'
test_expect_failure 'expect def_params during nested git alias expansion' '
test_expect_success 'expect def_params during nested git alias expansion' '
test_when_finished "rm prop.perf actual" &&
test_config_global "trace2.configParams" "cfg.prop.*" &&

12
trace2.c
View File

@ -464,17 +464,29 @@ void trace2_cmd_alias_fl(const char *file, int line, const char *alias,
void trace2_cmd_list_config_fl(const char *file, int line)
{
static int emitted = 0;
if (!trace2_enabled)
return;
if (emitted)
return;
emitted = 1;
tr2_cfg_list_config_fl(file, line);
}
void trace2_cmd_list_env_vars_fl(const char *file, int line)
{
static int emitted = 0;
if (!trace2_enabled)
return;
if (emitted)
return;
emitted = 1;
tr2_list_env_vars_fl(file, line);
}