* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "cache.h"
#include "quote.h"
+struct trace_key trace_default_key = { "GIT_TRACE", 0, 0, 0 };
+struct trace_key trace_perf_key = TRACE_KEY_INIT(PERFORMANCE);
+struct trace_key trace_setup_key = TRACE_KEY_INIT(SETUP);
+
/* Get a trace file descriptor from "key" env variable. */
static int get_trace_fd(struct trace_key *key)
{
- static struct trace_key trace_default = { "GIT_TRACE" };
const char *trace;
- /* use default "GIT_TRACE" if NULL */
- if (!key)
- key = &trace_default;
-
/* don't open twice */
if (key->initialized)
return key->fd;
else if (is_absolute_path(trace)) {
int fd = open(trace, O_WRONLY | O_APPEND | O_CREAT, 0666);
if (fd == -1) {
- fprintf(stderr,
- "Could not open '%s' for tracing: %s\n"
- "Defaulting to tracing on stderr...\n",
+ warning("could not open '%s' for tracing: %s",
trace, strerror(errno));
- key->fd = STDERR_FILENO;
+ trace_disable(key);
} else {
key->fd = fd;
key->need_close = 1;
}
} else {
- fprintf(stderr, "What does '%s' for %s mean?\n"
- "If you want to trace into a file, then please set "
- "%s to an absolute pathname (starting with /).\n"
- "Defaulting to tracing on stderr...\n",
- trace, key->key, key->key);
- key->fd = STDERR_FILENO;
+ warning("unknown trace value for '%s': %s\n"
+ " If you want to trace into a file, then please set %s\n"
+ " to an absolute pathname (starting with /)",
+ key->key, trace, key->key);
+ trace_disable(key);
}
key->initialized = 1;
key->need_close = 0;
}
-static const char err_msg[] = "Could not trace into fd given by "
- "GIT_TRACE environment variable";
-
static int prepare_trace_line(const char *file, int line,
struct trace_key *key, struct strbuf *buf)
{
return 1;
}
+static void trace_write(struct trace_key *key, const void *buf, unsigned len)
+{
+ if (write_in_full(get_trace_fd(key), buf, len) < 0) {
+ warning("unable to write trace for %s: %s",
+ key->key, strerror(errno));
+ trace_disable(key);
+ }
+}
+
void trace_verbatim(struct trace_key *key, const void *buf, unsigned len)
{
if (!trace_want(key))
return;
- write_or_whine_pipe(get_trace_fd(key), buf, len, err_msg);
+ trace_write(key, buf, len);
}
static void print_trace_line(struct trace_key *key, struct strbuf *buf)
{
strbuf_complete_line(buf);
-
- write_or_whine_pipe(get_trace_fd(key), buf->buf, buf->len, err_msg);
- strbuf_release(buf);
+ trace_write(key, buf->buf, buf->len);
}
static void trace_vprintf_fl(const char *file, int line, struct trace_key *key,
strbuf_vaddf(&buf, format, ap);
print_trace_line(key, &buf);
+ strbuf_release(&buf);
}
static void trace_argv_vprintf_fl(const char *file, int line,
{
struct strbuf buf = STRBUF_INIT;
- if (!prepare_trace_line(file, line, NULL, &buf))
+ if (!prepare_trace_line(file, line, &trace_default_key, &buf))
return;
strbuf_vaddf(&buf, format, ap);
- sq_quote_argv(&buf, argv, 0);
- print_trace_line(NULL, &buf);
+ sq_quote_argv_pretty(&buf, argv);
+ print_trace_line(&trace_default_key, &buf);
+ strbuf_release(&buf);
}
void trace_strbuf_fl(const char *file, int line, struct trace_key *key,
strbuf_addbuf(&buf, data);
print_trace_line(key, &buf);
+ strbuf_release(&buf);
}
-static struct trace_key trace_perf_key = TRACE_KEY_INIT(PERFORMANCE);
+static uint64_t perf_start_times[10];
+static int perf_indent;
+
+uint64_t trace_performance_enter(void)
+{
+ uint64_t now;
+
+ if (!trace_want(&trace_perf_key))
+ return 0;
+
+ now = getnanotime();
+ perf_start_times[perf_indent] = now;
+ if (perf_indent + 1 < ARRAY_SIZE(perf_start_times))
+ perf_indent++;
+ else
+ BUG("Too deep indentation");
+ return now;
+}
static void trace_performance_vprintf_fl(const char *file, int line,
uint64_t nanos, const char *format,
va_list ap)
{
+ static const char space[] = " ";
struct strbuf buf = STRBUF_INIT;
if (!prepare_trace_line(file, line, &trace_perf_key, &buf))
strbuf_addf(&buf, "performance: %.9f s", (double) nanos / 1000000000);
if (format && *format) {
- strbuf_addstr(&buf, ": ");
+ if (perf_indent >= strlen(space))
+ BUG("Too deep indentation");
+
+ strbuf_addf(&buf, ":%.*s ", perf_indent, space);
strbuf_vaddf(&buf, format, ap);
}
print_trace_line(&trace_perf_key, &buf);
+ strbuf_release(&buf);
}
#ifndef HAVE_VARIADIC_MACROS
{
va_list ap;
va_start(ap, format);
- trace_vprintf_fl(NULL, 0, NULL, format, ap);
+ trace_vprintf_fl(NULL, 0, &trace_default_key, format, ap);
va_end(ap);
}
va_end(ap);
}
+void trace_performance_leave(const char *format, ...)
+{
+ va_list ap;
+ uint64_t since;
+
+ if (perf_indent)
+ perf_indent--;
+
+ if (!format) /* Allow callers to leave without tracing anything */
+ return;
+
+ since = perf_start_times[perf_indent];
+ va_start(ap, format);
+ trace_performance_vprintf_fl(NULL, 0, getnanotime() - since,
+ format, ap);
+ va_end(ap);
+}
+
#else
void trace_printf_key_fl(const char *file, int line, struct trace_key *key,
va_end(ap);
}
+void trace_performance_leave_fl(const char *file, int line,
+ uint64_t nanos, const char *format, ...)
+{
+ va_list ap;
+ uint64_t since;
+
+ if (perf_indent)
+ perf_indent--;
+
+ if (!format) /* Allow callers to leave without tracing anything */
+ return;
+
+ since = perf_start_times[perf_indent];
+ va_start(ap, format);
+ trace_performance_vprintf_fl(file, line, nanos - since, format, ap);
+ va_end(ap);
+}
+
#endif /* HAVE_VARIADIC_MACROS */
static const char *quote_crnl(const char *path)
{
- static char new_path[PATH_MAX];
- const char *p2 = path;
- char *p1 = new_path;
+ static struct strbuf new_path = STRBUF_INIT;
if (!path)
return NULL;
- while (*p2) {
- switch (*p2) {
- case '\\': *p1++ = '\\'; *p1++ = '\\'; break;
- case '\n': *p1++ = '\\'; *p1++ = 'n'; break;
- case '\r': *p1++ = '\\'; *p1++ = 'r'; break;
+ strbuf_reset(&new_path);
+
+ while (*path) {
+ switch (*path) {
+ case '\\': strbuf_addstr(&new_path, "\\\\"); break;
+ case '\n': strbuf_addstr(&new_path, "\\n"); break;
+ case '\r': strbuf_addstr(&new_path, "\\r"); break;
default:
- *p1++ = *p2;
+ strbuf_addch(&new_path, *path);
}
- p2++;
+ path++;
}
- *p1 = '\0';
- return new_path;
+ return new_path.buf;
}
/* FIXME: move prefix to startup_info struct and get rid of this arg */
void trace_repo_setup(const char *prefix)
{
- static struct trace_key key = TRACE_KEY_INIT(SETUP);
const char *git_work_tree;
char *cwd;
- if (!trace_want(&key))
+ if (!trace_want(&trace_setup_key))
return;
cwd = xgetcwd();
if (!prefix)
prefix = "(null)";
- trace_printf_key(&key, "setup: git_dir: %s\n", quote_crnl(get_git_dir()));
- trace_printf_key(&key, "setup: git_common_dir: %s\n", quote_crnl(get_git_common_dir()));
- trace_printf_key(&key, "setup: worktree: %s\n", quote_crnl(git_work_tree));
- trace_printf_key(&key, "setup: cwd: %s\n", quote_crnl(cwd));
- trace_printf_key(&key, "setup: prefix: %s\n", quote_crnl(prefix));
+ trace_printf_key(&trace_setup_key, "setup: git_dir: %s\n", quote_crnl(get_git_dir()));
+ trace_printf_key(&trace_setup_key, "setup: git_common_dir: %s\n", quote_crnl(get_git_common_dir()));
+ trace_printf_key(&trace_setup_key, "setup: worktree: %s\n", quote_crnl(git_work_tree));
+ trace_printf_key(&trace_setup_key, "setup: cwd: %s\n", quote_crnl(cwd));
+ trace_printf_key(&trace_setup_key, "setup: prefix: %s\n", quote_crnl(prefix));
free(cwd);
}
}
}
-static uint64_t command_start_time;
static struct strbuf command_line = STRBUF_INIT;
static void print_command_performance_atexit(void)
{
- trace_performance_since(command_start_time, "git command:%s",
- command_line.buf);
+ trace_performance_leave("git command:%s", command_line.buf);
}
void trace_command_performance(const char **argv)
if (!trace_want(&trace_perf_key))
return;
- if (!command_start_time)
+ if (!command_line.len)
atexit(print_command_performance_atexit);
strbuf_reset(&command_line);
- sq_quote_argv(&command_line, argv, 0);
- command_start_time = getnanotime();
+ sq_quote_argv_pretty(&command_line, argv);
+ trace_performance_enter();
}