Josh Steadmon <steadmon@xxxxxxxxxx> writes: > +trace2.envVars:: > + A comma-separated list of "important" environment variables that should > + be recorded in the trace2 output. For example, > + `GIT_HTTP_USER_AGENT,GIT_CONFIG` would cause the trace2 output to > + contain events listing the overrides for HTTP user agent and the > + location of the Git configuration file (assuming any are set). May be > + overriden by the `GIT_TRACE2_ENV_VARS` environment variable. Unset by > + default. In other words, by default nothing is logged? > trace2_cmd_alias(alias_command, new_argv); > trace2_cmd_list_config(); > + trace2_cmd_list_env_vars(); OK, so we treat the settings of configuration variables and environment variables pretty much the same. Both affect how git behaves for the end-users, and even though they are physically different mechanisms, philosophically the reason they are worth logging are the same for these two categories. > @@ -439,6 +441,7 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv) > trace_argv_printf(argv, "trace: built-in: git"); > trace2_cmd_name(p->cmd); > trace2_cmd_list_config(); > + trace2_cmd_list_env_vars(); Likewise. That is why these two appear together. > trace2_cmd_name(cmds[i].name); > trace2_cmd_list_config(); > + trace2_cmd_list_env_vars(); And here. > diff --git a/trace2/tr2_sysenv.c b/trace2/tr2_sysenv.c > index 3c3792eca2..a380dcf910 100644 > --- a/trace2/tr2_sysenv.c > +++ b/trace2/tr2_sysenv.c > @@ -29,6 +29,8 @@ struct tr2_sysenv_entry { > static struct tr2_sysenv_entry tr2_sysenv_settings[] = { > [TR2_SYSENV_CFG_PARAM] = { "GIT_TRACE2_CONFIG_PARAMS", > "trace2.configparams" }, > + [TR2_SYSENV_ENV_VARS] = { "GIT_TRACE2_ENV_VARS", > + "trace2.envvars" }, > > [TR2_SYSENV_DST_DEBUG] = { "GIT_TRACE2_DST_DEBUG", > "trace2.destinationdebug" }, In this array, similar things are grouped together and groups are separated by a blank line in between. As the new ENV_VARS are treated pretty much the same way as CFG_PARAM, it is thrown in the same group, instead of becoming a group on its own. Makes sense. > diff --git a/trace2/tr2_sysenv.h b/trace2/tr2_sysenv.h > index d4364a7b85..3292ee15bc 100644 > --- a/trace2/tr2_sysenv.h > +++ b/trace2/tr2_sysenv.h > @@ -11,6 +11,7 @@ > */ > enum tr2_sysenv_variable { > TR2_SYSENV_CFG_PARAM = 0, > + TR2_SYSENV_ENV_VARS, > > TR2_SYSENV_DST_DEBUG, Likewise. Thanks.