chore(3p/git): Unvendor git and track patches instead r/2903

This was vendored a long time ago under the expectation that keeping
it in sync with cgit would be easier this way, but it has proven not
to be a big issue.

On the other hand, a vendored copy of git is an annoying maintenance
burden. It is much easier to rebase the single (dottime) patch that we
have.

This removes the vendored copy of git and instead passes the git
source code to cgit via `pkgs.srcOnly`, which includes the applied
patch so that cgit can continue rendering dottime.

Change-Id: If31f62dea7ce688fd1b9050204e9378019775f2b

1 files changed, 0 insertions, 307 deletions

diff --git a/third_party/git/usage.c b/third_party/git/usage.c
deleted file mode 100644
index 58fb5fff5f24..000000000000
--- a/third_party/git/usage.c
+++ /dev/null
@@ -1,307 +0,0 @@
-/*
- * GIT - The information manager from hell
- *
- * Copyright (C) Linus Torvalds, 2005
- */
-#include "git-compat-util.h"
-#include "cache.h"
-
-void vreportf(const char *prefix, const char *err, va_list params)
-{
-	char msg[4096];
-	char *p, *pend = msg + sizeof(msg);
-	size_t prefix_len = strlen(prefix);
-
-	if (sizeof(msg) <= prefix_len) {
-		fprintf(stderr, "BUG!!! too long a prefix '%s'\n", prefix);
-		abort();
-	}
-	memcpy(msg, prefix, prefix_len);
-	p = msg + prefix_len;
-	if (vsnprintf(p, pend - p, err, params) < 0)
-		*p = '\0'; /* vsnprintf() failed, clip at prefix */
-
-	for (; p != pend - 1 && *p; p++) {
-		if (iscntrl(*p) && *p != '\t' && *p != '\n')
-			*p = '?';
-	}
-
-	*(p++) = '\n'; /* we no longer need a NUL */
-	fflush(stderr);
-	write_in_full(2, msg, p - msg);
-}
-
-static NORETURN void usage_builtin(const char *err, va_list params)
-{
-	vreportf("usage: ", err, params);
-
-	/*
-	 * When we detect a usage error *before* the command dispatch in
-	 * cmd_main(), we don't know what verb to report.  Force it to this
-	 * to facilitate post-processing.
-	 */
-	trace2_cmd_name("_usage_");
-
-	/*
-	 * Currently, the (err, params) are usually just the static usage
-	 * string which isn't very useful here.  Usually, the call site
-	 * manually calls fprintf(stderr,...) with the actual detailed
-	 * syntax error before calling usage().
-	 *
-	 * TODO It would be nice to update the call sites to pass both
-	 * the static usage string and the detailed error message.
-	 */
-
-	exit(129);
-}
-
-static NORETURN void die_builtin(const char *err, va_list params)
-{
-	/*
-	 * We call this trace2 function first and expect it to va_copy 'params'
-	 * before using it (because an 'ap' can only be walked once).
-	 */
-	trace2_cmd_error_va(err, params);
-
-	vreportf("fatal: ", err, params);
-
-	exit(128);
-}
-
-static void error_builtin(const char *err, va_list params)
-{
-	/*
-	 * We call this trace2 function first and expect it to va_copy 'params'
-	 * before using it (because an 'ap' can only be walked once).
-	 */
-	trace2_cmd_error_va(err, params);
-
-	vreportf("error: ", err, params);
-}
-
-static void warn_builtin(const char *warn, va_list params)
-{
-	vreportf("warning: ", warn, params);
-}
-
-static int die_is_recursing_builtin(void)
-{
-	static int dying;
-	/*
-	 * Just an arbitrary number X where "a < x < b" where "a" is
-	 * "maximum number of pthreads we'll ever plausibly spawn" and
-	 * "b" is "something less than Inf", since the point is to
-	 * prevent infinite recursion.
-	 */
-	static const int recursion_limit = 1024;
-
-	dying++;
-	if (dying > recursion_limit) {
-		return 1;
-	} else if (dying == 2) {
-		warning("die() called many times. Recursion error or racy threaded death!");
-		return 0;
-	} else {
-		return 0;
-	}
-}
-
-/* If we are in a dlopen()ed .so write to a global variable would segfault
- * (ugh), so keep things static. */
-static NORETURN_PTR void (*usage_routine)(const char *err, va_list params) = usage_builtin;
-static NORETURN_PTR void (*die_routine)(const char *err, va_list params) = die_builtin;
-static void (*error_routine)(const char *err, va_list params) = error_builtin;
-static void (*warn_routine)(const char *err, va_list params) = warn_builtin;
-static int (*die_is_recursing)(void) = die_is_recursing_builtin;
-
-void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params))
-{
-	die_routine = routine;
-}
-
-void set_error_routine(void (*routine)(const char *err, va_list params))
-{
-	error_routine = routine;
-}
-
-void (*get_error_routine(void))(const char *err, va_list params)
-{
-	return error_routine;
-}
-
-void set_warn_routine(void (*routine)(const char *warn, va_list params))
-{
-	warn_routine = routine;
-}
-
-void (*get_warn_routine(void))(const char *warn, va_list params)
-{
-	return warn_routine;
-}
-
-void set_die_is_recursing_routine(int (*routine)(void))
-{
-	die_is_recursing = routine;
-}
-
-void NORETURN usagef(const char *err, ...)
-{
-	va_list params;
-
-	va_start(params, err);
-	usage_routine(err, params);
-	va_end(params);
-}
-
-void NORETURN usage(const char *err)
-{
-	usagef("%s", err);
-}
-
-void NORETURN die(const char *err, ...)
-{
-	va_list params;
-
-	if (die_is_recursing()) {
-		fputs("fatal: recursion detected in die handler\n", stderr);
-		exit(128);
-	}
-
-	va_start(params, err);
-	die_routine(err, params);
-	va_end(params);
-}
-
-static const char *fmt_with_err(char *buf, int n, const char *fmt)
-{
-	char str_error[256], *err;
-	int i, j;
-
-	err = strerror(errno);
-	for (i = j = 0; err[i] && j < sizeof(str_error) - 1; ) {
-		if ((str_error[j++] = err[i++]) != '%')
-			continue;
-		if (j < sizeof(str_error) - 1) {
-			str_error[j++] = '%';
-		} else {
-			/* No room to double the '%', so we overwrite it with
-			 * '\0' below */
-			j--;
-			break;
-		}
-	}
-	str_error[j] = 0;
-	/* Truncation is acceptable here */
-	snprintf(buf, n, "%s: %s", fmt, str_error);
-	return buf;
-}
-
-void NORETURN die_errno(const char *fmt, ...)
-{
-	char buf[1024];
-	va_list params;
-
-	if (die_is_recursing()) {
-		fputs("fatal: recursion detected in die_errno handler\n",
-			stderr);
-		exit(128);
-	}
-
-	va_start(params, fmt);
-	die_routine(fmt_with_err(buf, sizeof(buf), fmt), params);
-	va_end(params);
-}
-
-#undef error_errno
-int error_errno(const char *fmt, ...)
-{
-	char buf[1024];
-	va_list params;
-
-	va_start(params, fmt);
-	error_routine(fmt_with_err(buf, sizeof(buf), fmt), params);
-	va_end(params);
-	return -1;
-}
-
-#undef error
-int error(const char *err, ...)
-{
-	va_list params;
-
-	va_start(params, err);
-	error_routine(err, params);
-	va_end(params);
-	return -1;
-}
-
-void warning_errno(const char *warn, ...)
-{
-	char buf[1024];
-	va_list params;
-
-	va_start(params, warn);
-	warn_routine(fmt_with_err(buf, sizeof(buf), warn), params);
-	va_end(params);
-}
-
-void warning(const char *warn, ...)
-{
-	va_list params;
-
-	va_start(params, warn);
-	warn_routine(warn, params);
-	va_end(params);
-}
-
-/* Only set this, ever, from t/helper/, when verifying that bugs are caught. */
-int BUG_exit_code;
-
-static NORETURN void BUG_vfl(const char *file, int line, const char *fmt, va_list params)
-{
-	char prefix[256];
-
-	/* truncation via snprintf is OK here */
-	if (file)
-		snprintf(prefix, sizeof(prefix), "BUG: %s:%d: ", file, line);
-	else
-		snprintf(prefix, sizeof(prefix), "BUG: ");
-
-	vreportf(prefix, fmt, params);
-	if (BUG_exit_code)
-		exit(BUG_exit_code);
-	abort();
-}
-
-#ifdef HAVE_VARIADIC_MACROS
-NORETURN void BUG_fl(const char *file, int line, const char *fmt, ...)
-{
-	va_list ap;
-	va_start(ap, fmt);
-	BUG_vfl(file, line, fmt, ap);
-	va_end(ap);
-}
-#else
-NORETURN void BUG(const char *fmt, ...)
-{
-	va_list ap;
-	va_start(ap, fmt);
-	BUG_vfl(NULL, 0, fmt, ap);
-	va_end(ap);
-}
-#endif
-
-#ifdef SUPPRESS_ANNOTATED_LEAKS
-void unleak_memory(const void *ptr, size_t len)
-{
-	static struct suppressed_leak_root {
-		struct suppressed_leak_root *next;
-		char data[FLEX_ARRAY];
-	} *suppressed_leaks;
-	struct suppressed_leak_root *root;
-
-	FLEX_ALLOC_MEM(root, data, ptr, len);
-	root->next = suppressed_leaks;
-	suppressed_leaks = root;
-}
-#endif