1 files changed, 0 insertions, 501 deletions
diff --git a/third_party/git/trace.c b/third_party/git/trace.c
deleted file mode 100644
index f726686fd92f..000000000000
--- a/third_party/git/trace.c
+++ /dev/null
@@ -1,501 +0,0 @@
-/*
- * GIT - The information manager from hell
- *
- * Copyright (C) 2000-2002 Michael R. Elkins <me@mutt.org>
- * Copyright (C) 2002-2004 Oswald Buddenhagen <ossi@users.sf.net>
- * Copyright (C) 2004 Theodore Y. Ts'o <tytso@mit.edu>
- * Copyright (C) 2006 Mike McCormack
- * Copyright (C) 2006 Christian Couder
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  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, 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, const char *override_envvar)
-{
-	const char *trace;
-
-	/* don't open twice */
-	if (key->initialized)
-		return key->fd;
-
-	trace = override_envvar ? override_envvar : getenv(key->key);
-
-	if (!trace || !strcmp(trace, "") ||
-	    !strcmp(trace, "0") || !strcasecmp(trace, "false"))
-		key->fd = 0;
-	else if (!strcmp(trace, "1") || !strcasecmp(trace, "true"))
-		key->fd = STDERR_FILENO;
-	else if (strlen(trace) == 1 && isdigit(*trace))
-		key->fd = atoi(trace);
-	else if (is_absolute_path(trace)) {
-		int fd = open(trace, O_WRONLY | O_APPEND | O_CREAT, 0666);
-		if (fd == -1) {
-			warning("could not open '%s' for tracing: %s",
-				trace, strerror(errno));
-			trace_disable(key);
-		} else {
-			key->fd = fd;
-			key->need_close = 1;
-		}
-	} else {
-		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;
-	return key->fd;
-}
-
-void trace_override_envvar(struct trace_key *key, const char *value)
-{
-	trace_disable(key);
-	key->initialized = 0;
-
-	/*
-	 * Invoke get_trace_fd() to initialize key using the given value
-	 * instead of the value of the environment variable.
-	 */
-	get_trace_fd(key, value);
-}
-
-void trace_disable(struct trace_key *key)
-{
-	if (key->need_close)
-		close(key->fd);
-	key->fd = 0;
-	key->initialized = 1;
-	key->need_close = 0;
-}
-
-static int prepare_trace_line(const char *file, int line,
-			      struct trace_key *key, struct strbuf *buf)
-{
-	static struct trace_key trace_bare = TRACE_KEY_INIT(BARE);
-	struct timeval tv;
-	struct tm tm;
-	time_t secs;
-
-	if (!trace_want(key))
-		return 0;
-
-	/* unit tests may want to disable additional trace output */
-	if (trace_want(&trace_bare))
-		return 1;
-
-	/* print current timestamp */
-	gettimeofday(&tv, NULL);
-	secs = tv.tv_sec;
-	localtime_r(&secs, &tm);
-	strbuf_addf(buf, "%02d:%02d:%02d.%06ld ", tm.tm_hour, tm.tm_min,
-		    tm.tm_sec, (long) tv.tv_usec);
-
-#ifdef HAVE_VARIADIC_MACROS
-	/* print file:line */
-	strbuf_addf(buf, "%s:%d ", file, line);
-	/* align trace output (column 40 catches most files names in git) */
-	while (buf->len < 40)
-		strbuf_addch(buf, ' ');
-#endif
-
-	return 1;
-}
-
-static void trace_write(struct trace_key *key, const void *buf, unsigned len)
-{
-	if (write_in_full(get_trace_fd(key, NULL), 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;
-	trace_write(key, buf, len);
-}
-
-static void print_trace_line(struct trace_key *key, struct strbuf *buf)
-{
-	strbuf_complete_line(buf);
-	trace_write(key, buf->buf, buf->len);
-}
-
-static void trace_vprintf_fl(const char *file, int line, struct trace_key *key,
-			     const char *format, va_list ap)
-{
-	struct strbuf buf = STRBUF_INIT;
-
-	if (!prepare_trace_line(file, line, key, &buf))
-		return;
-
-	strbuf_vaddf(&buf, format, ap);
-	print_trace_line(key, &buf);
-	strbuf_release(&buf);
-}
-
-static void trace_argv_vprintf_fl(const char *file, int line,
-				  const char **argv, const char *format,
-				  va_list ap)
-{
-	struct strbuf buf = STRBUF_INIT;
-
-	if (!prepare_trace_line(file, line, &trace_default_key, &buf))
-		return;
-
-	strbuf_vaddf(&buf, format, ap);
-
-	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,
-		     const struct strbuf *data)
-{
-	struct strbuf buf = STRBUF_INIT;
-
-	if (!prepare_trace_line(file, line, key, &buf))
-		return;
-
-	strbuf_addbuf(&buf, data);
-	print_trace_line(key, &buf);
-	strbuf_release(&buf);
-}
-
-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))
-		return;
-
-	strbuf_addf(&buf, "performance: %.9f s", (double) nanos / 1000000000);
-
-	if (format && *format) {
-		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
-
-void trace_printf(const char *format, ...)
-{
-	va_list ap;
-	va_start(ap, format);
-	trace_vprintf_fl(NULL, 0, &trace_default_key, format, ap);
-	va_end(ap);
-}
-
-void trace_printf_key(struct trace_key *key, const char *format, ...)
-{
-	va_list ap;
-	va_start(ap, format);
-	trace_vprintf_fl(NULL, 0, key, format, ap);
-	va_end(ap);
-}
-
-void trace_argv_printf(const char **argv, const char *format, ...)
-{
-	va_list ap;
-	va_start(ap, format);
-	trace_argv_vprintf_fl(NULL, 0, argv, format, ap);
-	va_end(ap);
-}
-
-void trace_strbuf(struct trace_key *key, const struct strbuf *data)
-{
-	trace_strbuf_fl(NULL, 0, key, data);
-}
-
-void trace_performance(uint64_t nanos, const char *format, ...)
-{
-	va_list ap;
-	va_start(ap, format);
-	trace_performance_vprintf_fl(NULL, 0, nanos, format, ap);
-	va_end(ap);
-}
-
-void trace_performance_since(uint64_t start, const char *format, ...)
-{
-	va_list ap;
-	va_start(ap, format);
-	trace_performance_vprintf_fl(NULL, 0, getnanotime() - start,
-				     format, 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,
-			 const char *format, ...)
-{
-	va_list ap;
-	va_start(ap, format);
-	trace_vprintf_fl(file, line, key, format, ap);
-	va_end(ap);
-}
-
-void trace_argv_printf_fl(const char *file, int line, const char **argv,
-			  const char *format, ...)
-{
-	va_list ap;
-	va_start(ap, format);
-	trace_argv_vprintf_fl(file, line, argv, format, ap);
-	va_end(ap);
-}
-
-void trace_performance_fl(const char *file, int line, uint64_t nanos,
-			      const char *format, ...)
-{
-	va_list ap;
-	va_start(ap, format);
-	trace_performance_vprintf_fl(file, line, nanos, format, ap);
-	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 struct strbuf new_path = STRBUF_INIT;
-
-	if (!path)
-		return NULL;
-
-	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:
-			strbuf_addch(&new_path, *path);
-		}
-		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)
-{
-	const char *git_work_tree;
-	char *cwd;
-
-	if (!trace_want(&trace_setup_key))
-		return;
-
-	cwd = xgetcwd();
-
-	if (!(git_work_tree = get_git_work_tree()))
-		git_work_tree = "(null)";
-
-	if (!prefix)
-		prefix = "(null)";
-
-	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);
-}
-
-int trace_want(struct trace_key *key)
-{
-	return !!get_trace_fd(key, NULL);
-}
-
-#if defined(HAVE_CLOCK_GETTIME) && defined(HAVE_CLOCK_MONOTONIC)
-
-static inline uint64_t highres_nanos(void)
-{
-	struct timespec ts;
-	if (clock_gettime(CLOCK_MONOTONIC, &ts))
-		return 0;
-	return (uint64_t) ts.tv_sec * 1000000000 + ts.tv_nsec;
-}
-
-#elif defined (GIT_WINDOWS_NATIVE)
-
-static inline uint64_t highres_nanos(void)
-{
-	static uint64_t high_ns, scaled_low_ns;
-	static int scale;
-	LARGE_INTEGER cnt;
-
-	if (!scale) {
-		if (!QueryPerformanceFrequency(&cnt))
-			return 0;
-
-		/* high_ns = number of ns per cnt.HighPart */
-		high_ns = (1000000000LL << 32) / (uint64_t) cnt.QuadPart;
-
-		/*
-		 * Number of ns per cnt.LowPart is 10^9 / frequency (or
-		 * high_ns >> 32). For maximum precision, we scale this factor
-		 * so that it just fits within 32 bit (i.e. won't overflow if
-		 * multiplied with cnt.LowPart).
-		 */
-		scaled_low_ns = high_ns;
-		scale = 32;
-		while (scaled_low_ns >= 0x100000000LL) {
-			scaled_low_ns >>= 1;
-			scale--;
-		}
-	}
-
-	/* if QPF worked on initialization, we expect QPC to work as well */
-	QueryPerformanceCounter(&cnt);
-
-	return (high_ns * cnt.HighPart) +
-	       ((scaled_low_ns * cnt.LowPart) >> scale);
-}
-
-#else
-# define highres_nanos() 0
-#endif
-
-static inline uint64_t gettimeofday_nanos(void)
-{
-	struct timeval tv;
-	gettimeofday(&tv, NULL);
-	return (uint64_t) tv.tv_sec * 1000000000 + tv.tv_usec * 1000;
-}
-
-/*
- * Returns nanoseconds since the epoch (01/01/1970), for performance tracing
- * (i.e. favoring high precision over wall clock time accuracy).
- */
-uint64_t getnanotime(void)
-{
-	static uint64_t offset;
-	if (offset > 1) {
-		/* initialization succeeded, return offset + high res time */
-		return offset + highres_nanos();
-	} else if (offset == 1) {
-		/* initialization failed, fall back to gettimeofday */
-		return gettimeofday_nanos();
-	} else {
-		/* initialize offset if high resolution timer works */
-		uint64_t now = gettimeofday_nanos();
-		uint64_t highres = highres_nanos();
-		if (highres)
-			offset = now - highres;
-		else
-			offset = 1;
-		return now;
-	}
-}
-
-static struct strbuf command_line = STRBUF_INIT;
-
-static void print_command_performance_atexit(void)
-{
-	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_line.len)
-		atexit(print_command_performance_atexit);
-
-	strbuf_reset(&command_line);
-	sq_quote_argv_pretty(&command_line, argv);
-	trace_performance_enter();
-}