git/trace2/tr2_sysenv.c

#include "git-compat-util.h"
#include "config.h"
#include "dir.h"
#include "tr2_sysenv.h"

/*
 * Each entry represents a trace2 setting.
 * See Documentation/technical/api-trace2.txt
 */
struct tr2_sysenv_entry { … };

/*
 * This table must match "enum tr2_sysenv_variable" in tr2_sysenv.h.
 *
 * The strings in this table are constant and must match the published
 * config and environment variable names as described in the documentation.
 *
 * We do not define entries for the GIT_TRACE2_PARENT_* environment
 * variables because they are transient and used to pass information
 * from parent to child git processes, rather than settings.
 */
/* clang-format off */
static struct tr2_sysenv_entry tr2_sysenv_settings[] = …;
/* clang-format on */

static int tr2_sysenv_cb(const char *key, const char *value,
			 const struct config_context *ctx UNUSED,
			 void *d UNUSED)
{ … }

/*
 * Load Trace2 settings from the system config (usually "/etc/gitconfig"
 * unless we were built with a runtime-prefix).  These are intended to
 * define the default values for Trace2 as requested by the administrator.
 *
 * Then override with the Trace2 settings from the global config.
 */
void tr2_sysenv_load(void)
{ … }

/*
 * Return the value for the requested Trace2 setting from these sources:
 * the system config, the global config, and the environment.
 */
const char *tr2_sysenv_get(enum tr2_sysenv_variable var)
{ … }

/*
 * Return a friendly name for this setting that is suitable for printing
 * in an error messages.
 */
const char *tr2_sysenv_display_name(enum tr2_sysenv_variable var)
{ … }

void tr2_sysenv_release(void)
{ … }