bce9db6de9
Teach git to read the system and global config files for default Trace2 settings. This allows system-wide Trace2 settings to be installed and inherited to make it easier to manage a collection of systems. The original GIT_TR2* environment variables are loaded afterwards and can be used to override the system settings. Only the system and global config files are used. Repo and worktree local config files are ignored. Likewise, the "-c" command line arguments are also ignored. These limits are for performance reasons. (1) For users not using Trace2, there should be minimal overhead to detect that Trace2 is not enabled. In particular, Trace2 should not allocate lots of otherwise unused data strucutres. (2) For accurate performance measurements, Trace2 should be initialized as early in the git process as possible, and before most of the normal git process initialization (which involves discovering the .git directory and reading a hierarchy of config files). Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
325 lines
8.2 KiB
C
325 lines
8.2 KiB
C
#include "cache.h"
|
|
#include "config.h"
|
|
#include "run-command.h"
|
|
#include "quote.h"
|
|
#include "version.h"
|
|
#include "trace2/tr2_dst.h"
|
|
#include "trace2/tr2_sysenv.h"
|
|
#include "trace2/tr2_tbuf.h"
|
|
#include "trace2/tr2_tgt.h"
|
|
#include "trace2/tr2_tls.h"
|
|
|
|
static struct tr2_dst tr2dst_normal = { TR2_SYSENV_NORMAL, 0, 0, 0 };
|
|
|
|
/*
|
|
* Use the TR2_SYSENV_NORMAL_BRIEF setting to omit the "<time> <file>:<line>"
|
|
* fields from each line written to the builtin normal target.
|
|
*
|
|
* Unit tests may want to use this to help with testing.
|
|
*/
|
|
static int tr2env_normal_be_brief;
|
|
|
|
#define TR2FMT_NORMAL_FL_WIDTH (50)
|
|
|
|
static int fn_init(void)
|
|
{
|
|
int want = tr2_dst_trace_want(&tr2dst_normal);
|
|
int want_brief;
|
|
const char *brief;
|
|
|
|
if (!want)
|
|
return want;
|
|
|
|
brief = tr2_sysenv_get(TR2_SYSENV_NORMAL_BRIEF);
|
|
if (brief && *brief &&
|
|
((want_brief = git_parse_maybe_bool(brief)) != -1))
|
|
tr2env_normal_be_brief = want_brief;
|
|
|
|
return want;
|
|
}
|
|
|
|
static void fn_term(void)
|
|
{
|
|
tr2_dst_trace_disable(&tr2dst_normal);
|
|
}
|
|
|
|
static void normal_fmt_prepare(const char *file, int line, struct strbuf *buf)
|
|
{
|
|
strbuf_setlen(buf, 0);
|
|
|
|
if (!tr2env_normal_be_brief) {
|
|
struct tr2_tbuf tb_now;
|
|
|
|
tr2_tbuf_local_time(&tb_now);
|
|
strbuf_addstr(buf, tb_now.buf);
|
|
strbuf_addch(buf, ' ');
|
|
|
|
if (file && *file)
|
|
strbuf_addf(buf, "%s:%d ", file, line);
|
|
while (buf->len < TR2FMT_NORMAL_FL_WIDTH)
|
|
strbuf_addch(buf, ' ');
|
|
}
|
|
}
|
|
|
|
static void normal_io_write_fl(const char *file, int line,
|
|
const struct strbuf *buf_payload)
|
|
{
|
|
struct strbuf buf_line = STRBUF_INIT;
|
|
|
|
normal_fmt_prepare(file, line, &buf_line);
|
|
strbuf_addbuf(&buf_line, buf_payload);
|
|
tr2_dst_write_line(&tr2dst_normal, &buf_line);
|
|
strbuf_release(&buf_line);
|
|
}
|
|
|
|
static void fn_version_fl(const char *file, int line)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addf(&buf_payload, "version %s", git_version_string);
|
|
normal_io_write_fl(file, line, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_start_fl(const char *file, int line,
|
|
uint64_t us_elapsed_absolute, const char **argv)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addstr(&buf_payload, "start ");
|
|
sq_quote_argv_pretty(&buf_payload, argv);
|
|
normal_io_write_fl(file, line, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_exit_fl(const char *file, int line, uint64_t us_elapsed_absolute,
|
|
int code)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
double elapsed = (double)us_elapsed_absolute / 1000000.0;
|
|
|
|
strbuf_addf(&buf_payload, "exit elapsed:%.6f code:%d", elapsed, code);
|
|
normal_io_write_fl(file, line, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_signal(uint64_t us_elapsed_absolute, int signo)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
double elapsed = (double)us_elapsed_absolute / 1000000.0;
|
|
|
|
strbuf_addf(&buf_payload, "signal elapsed:%.6f code:%d", elapsed,
|
|
signo);
|
|
normal_io_write_fl(__FILE__, __LINE__, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_atexit(uint64_t us_elapsed_absolute, int code)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
double elapsed = (double)us_elapsed_absolute / 1000000.0;
|
|
|
|
strbuf_addf(&buf_payload, "atexit elapsed:%.6f code:%d", elapsed, code);
|
|
normal_io_write_fl(__FILE__, __LINE__, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void maybe_append_string_va(struct strbuf *buf, const char *fmt,
|
|
va_list ap)
|
|
{
|
|
if (fmt && *fmt && ap) {
|
|
va_list copy_ap;
|
|
|
|
va_copy(copy_ap, ap);
|
|
strbuf_vaddf(buf, fmt, copy_ap);
|
|
va_end(copy_ap);
|
|
return;
|
|
}
|
|
|
|
if (fmt && *fmt) {
|
|
strbuf_addstr(buf, fmt);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void fn_error_va_fl(const char *file, int line, const char *fmt,
|
|
va_list ap)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addstr(&buf_payload, "error ");
|
|
maybe_append_string_va(&buf_payload, fmt, ap);
|
|
normal_io_write_fl(file, line, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_command_path_fl(const char *file, int line, const char *pathname)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addf(&buf_payload, "cmd_path %s", pathname);
|
|
normal_io_write_fl(file, line, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_command_name_fl(const char *file, int line, const char *name,
|
|
const char *hierarchy)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addf(&buf_payload, "cmd_name %s", name);
|
|
if (hierarchy && *hierarchy)
|
|
strbuf_addf(&buf_payload, " (%s)", hierarchy);
|
|
normal_io_write_fl(file, line, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_command_mode_fl(const char *file, int line, const char *mode)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addf(&buf_payload, "cmd_mode %s", mode);
|
|
normal_io_write_fl(file, line, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_alias_fl(const char *file, int line, const char *alias,
|
|
const char **argv)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addf(&buf_payload, "alias %s ->", alias);
|
|
sq_quote_argv_pretty(&buf_payload, argv);
|
|
normal_io_write_fl(file, line, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_child_start_fl(const char *file, int line,
|
|
uint64_t us_elapsed_absolute,
|
|
const struct child_process *cmd)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addf(&buf_payload, "child_start[%d] ", cmd->trace2_child_id);
|
|
|
|
if (cmd->dir) {
|
|
strbuf_addstr(&buf_payload, " cd");
|
|
sq_quote_buf_pretty(&buf_payload, cmd->dir);
|
|
strbuf_addstr(&buf_payload, "; ");
|
|
}
|
|
|
|
/*
|
|
* TODO if (cmd->env) { Consider dumping changes to environment. }
|
|
* See trace_add_env() in run-command.c as used by original trace.c
|
|
*/
|
|
|
|
if (cmd->git_cmd)
|
|
strbuf_addstr(&buf_payload, "git");
|
|
sq_quote_argv_pretty(&buf_payload, cmd->argv);
|
|
|
|
normal_io_write_fl(file, line, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_child_exit_fl(const char *file, int line,
|
|
uint64_t us_elapsed_absolute, int cid, int pid,
|
|
int code, uint64_t us_elapsed_child)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
double elapsed = (double)us_elapsed_child / 1000000.0;
|
|
|
|
strbuf_addf(&buf_payload, "child_exit[%d] pid:%d code:%d elapsed:%.6f",
|
|
cid, pid, code, elapsed);
|
|
normal_io_write_fl(file, line, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_exec_fl(const char *file, int line, uint64_t us_elapsed_absolute,
|
|
int exec_id, const char *exe, const char **argv)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addf(&buf_payload, "exec[%d] ", exec_id);
|
|
if (exe)
|
|
strbuf_addstr(&buf_payload, exe);
|
|
sq_quote_argv_pretty(&buf_payload, argv);
|
|
normal_io_write_fl(file, line, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_exec_result_fl(const char *file, int line,
|
|
uint64_t us_elapsed_absolute, int exec_id,
|
|
int code)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addf(&buf_payload, "exec_result[%d] code:%d", exec_id, code);
|
|
if (code > 0)
|
|
strbuf_addf(&buf_payload, " err:%s", strerror(code));
|
|
normal_io_write_fl(file, line, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_param_fl(const char *file, int line, const char *param,
|
|
const char *value)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addf(&buf_payload, "def_param %s=%s", param, value);
|
|
normal_io_write_fl(file, line, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_repo_fl(const char *file, int line,
|
|
const struct repository *repo)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addstr(&buf_payload, "worktree ");
|
|
sq_quote_buf_pretty(&buf_payload, repo->worktree);
|
|
normal_io_write_fl(file, line, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_printf_va_fl(const char *file, int line,
|
|
uint64_t us_elapsed_absolute, const char *fmt,
|
|
va_list ap)
|
|
{
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
maybe_append_string_va(&buf_payload, fmt, ap);
|
|
normal_io_write_fl(file, line, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
struct tr2_tgt tr2_tgt_normal = {
|
|
&tr2dst_normal,
|
|
|
|
fn_init,
|
|
fn_term,
|
|
|
|
fn_version_fl,
|
|
fn_start_fl,
|
|
fn_exit_fl,
|
|
fn_signal,
|
|
fn_atexit,
|
|
fn_error_va_fl,
|
|
fn_command_path_fl,
|
|
fn_command_name_fl,
|
|
fn_command_mode_fl,
|
|
fn_alias_fl,
|
|
fn_child_start_fl,
|
|
fn_child_exit_fl,
|
|
NULL, /* thread_start */
|
|
NULL, /* thread_exit */
|
|
fn_exec_fl,
|
|
fn_exec_result_fl,
|
|
fn_param_fl,
|
|
fn_repo_fl,
|
|
NULL, /* region_enter */
|
|
NULL, /* region_leave */
|
|
NULL, /* data */
|
|
NULL, /* data_json */
|
|
fn_printf_va_fl,
|
|
};
|