diff options
Diffstat (limited to 'third_party/git/trace2/tr2_sysenv.c')
| -rw-r--r-- | third_party/git/trace2/tr2_sysenv.c | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/third_party/git/trace2/tr2_sysenv.c b/third_party/git/trace2/tr2_sysenv.c deleted file mode 100644 index a380dcf9105e..000000000000 --- a/third_party/git/trace2/tr2_sysenv.c +++ /dev/null @@ -1,132 +0,0 @@ -#include "cache.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 { - const char *env_var_name; - const char *git_config_name; - - char *value; - unsigned int getenv_called : 1; -}; - -/* - * 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[] = { - [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" }, - - [TR2_SYSENV_NORMAL] = { "GIT_TRACE2", - "trace2.normaltarget" }, - [TR2_SYSENV_NORMAL_BRIEF] = { "GIT_TRACE2_BRIEF", - "trace2.normalbrief" }, - - [TR2_SYSENV_EVENT] = { "GIT_TRACE2_EVENT", - "trace2.eventtarget" }, - [TR2_SYSENV_EVENT_BRIEF] = { "GIT_TRACE2_EVENT_BRIEF", - "trace2.eventbrief" }, - [TR2_SYSENV_EVENT_NESTING] = { "GIT_TRACE2_EVENT_NESTING", - "trace2.eventnesting" }, - - [TR2_SYSENV_PERF] = { "GIT_TRACE2_PERF", - "trace2.perftarget" }, - [TR2_SYSENV_PERF_BRIEF] = { "GIT_TRACE2_PERF_BRIEF", - "trace2.perfbrief" }, - - [TR2_SYSENV_MAX_FILES] = { "GIT_TRACE2_MAX_FILES", - "trace2.maxfiles" }, -}; -/* clang-format on */ - -static int tr2_sysenv_cb(const char *key, const char *value, void *d) -{ - int k; - - if (!starts_with(key, "trace2.")) - return 0; - - for (k = 0; k < ARRAY_SIZE(tr2_sysenv_settings); k++) { - if (!strcmp(key, tr2_sysenv_settings[k].git_config_name)) { - free(tr2_sysenv_settings[k].value); - tr2_sysenv_settings[k].value = xstrdup(value); - return 0; - } - } - - return 0; -} - -/* - * 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) -{ - if (ARRAY_SIZE(tr2_sysenv_settings) != TR2_SYSENV_MUST_BE_LAST) - BUG("tr2_sysenv_settings size is wrong"); - - read_very_early_config(tr2_sysenv_cb, NULL); -} - -/* - * 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) -{ - if (var >= TR2_SYSENV_MUST_BE_LAST) - BUG("tr2_sysenv_get invalid var '%d'", var); - - if (!tr2_sysenv_settings[var].getenv_called) { - const char *v = getenv(tr2_sysenv_settings[var].env_var_name); - if (v && *v) { - free(tr2_sysenv_settings[var].value); - tr2_sysenv_settings[var].value = xstrdup(v); - } - tr2_sysenv_settings[var].getenv_called = 1; - } - - return tr2_sysenv_settings[var].value; -} - -/* - * 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) -{ - if (var >= TR2_SYSENV_MUST_BE_LAST) - BUG("tr2_sysenv_get invalid var '%d'", var); - - return tr2_sysenv_settings[var].env_var_name; -} - -void tr2_sysenv_release(void) -{ - int k; - - for (k = 0; k < ARRAY_SIZE(tr2_sysenv_settings); k++) - free(tr2_sysenv_settings[k].value); -} |