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, 477 deletions

diff --git a/third_party/git/t/helper/test-path-utils.c b/third_party/git/t/helper/test-path-utils.c
deleted file mode 100644
index 313a153209c4..000000000000
--- a/third_party/git/t/helper/test-path-utils.c
+++ /dev/null
@@ -1,477 +0,0 @@
-#include "test-tool.h"
-#include "cache.h"
-#include "string-list.h"
-#include "utf8.h"
-
-/*
- * A "string_list_each_func_t" function that normalizes an entry from
- * GIT_CEILING_DIRECTORIES.  If the path is unusable for some reason,
- * die with an explanation.
- */
-static int normalize_ceiling_entry(struct string_list_item *item, void *unused)
-{
-	char *ceil = item->string;
-
-	if (!*ceil)
-		die("Empty path is not supported");
-	if (!is_absolute_path(ceil))
-		die("Path \"%s\" is not absolute", ceil);
-	if (normalize_path_copy(ceil, ceil) < 0)
-		die("Path \"%s\" could not be normalized", ceil);
-	return 1;
-}
-
-static void normalize_argv_string(const char **var, const char *input)
-{
-	if (!strcmp(input, "<null>"))
-		*var = NULL;
-	else if (!strcmp(input, "<empty>"))
-		*var = "";
-	else
-		*var = input;
-
-	if (*var && (**var == '<' || **var == '('))
-		die("Bad value: %s\n", input);
-}
-
-struct test_data {
-	const char *from;  /* input:  transform from this ... */
-	const char *to;    /* output: ... to this.            */
-	const char *alternative; /* output: ... or this.      */
-};
-
-/*
- * Compatibility wrappers for OpenBSD, whose basename(3) and dirname(3)
- * have const parameters.
- */
-static char *posix_basename(char *path)
-{
-	return basename(path);
-}
-
-static char *posix_dirname(char *path)
-{
-	return dirname(path);
-}
-
-static int test_function(struct test_data *data, char *(*func)(char *input),
-	const char *funcname)
-{
-	int failed = 0, i;
-	char buffer[1024];
-	char *to;
-
-	for (i = 0; data[i].to; i++) {
-		if (!data[i].from)
-			to = func(NULL);
-		else {
-			xsnprintf(buffer, sizeof(buffer), "%s", data[i].from);
-			to = func(buffer);
-		}
-		if (!strcmp(to, data[i].to))
-			continue;
-		if (!data[i].alternative)
-			error("FAIL: %s(%s) => '%s' != '%s'\n",
-				funcname, data[i].from, to, data[i].to);
-		else if (!strcmp(to, data[i].alternative))
-			continue;
-		else
-			error("FAIL: %s(%s) => '%s' != '%s', '%s'\n",
-				funcname, data[i].from, to, data[i].to,
-				data[i].alternative);
-		failed = 1;
-	}
-	return failed;
-}
-
-static struct test_data basename_data[] = {
-	/* --- POSIX type paths --- */
-	{ NULL,              "."    },
-	{ "",                "."    },
-	{ ".",               "."    },
-	{ "..",              ".."   },
-	{ "/",               "/"    },
-	{ "//",              "/", "//" },
-	{ "///",             "/", "//" },
-	{ "////",            "/", "//" },
-	{ "usr",             "usr"  },
-	{ "/usr",            "usr"  },
-	{ "/usr/",           "usr"  },
-	{ "/usr//",          "usr"  },
-	{ "/usr/lib",        "lib"  },
-	{ "usr/lib",         "lib"  },
-	{ "usr/lib///",      "lib"  },
-
-#if defined(__MINGW32__) || defined(_MSC_VER)
-	/* --- win32 type paths --- */
-	{ "\\usr",           "usr"  },
-	{ "\\usr\\",         "usr"  },
-	{ "\\usr\\\\",       "usr"  },
-	{ "\\usr\\lib",      "lib"  },
-	{ "usr\\lib",        "lib"  },
-	{ "usr\\lib\\\\\\",  "lib"  },
-	{ "C:/usr",          "usr"  },
-	{ "C:/usr",          "usr"  },
-	{ "C:/usr/",         "usr"  },
-	{ "C:/usr//",        "usr"  },
-	{ "C:/usr/lib",      "lib"  },
-	{ "C:usr/lib",       "lib"  },
-	{ "C:usr/lib///",    "lib"  },
-	{ "C:",              "."    },
-	{ "C:a",             "a"    },
-	{ "C:/",             "/"    },
-	{ "C:///",           "/"    },
-	{ "\\",              "\\", "/" },
-	{ "\\\\",            "\\", "/" },
-	{ "\\\\\\",          "\\", "/" },
-#endif
-	{ NULL,              NULL   }
-};
-
-static struct test_data dirname_data[] = {
-	/* --- POSIX type paths --- */
-	{ NULL,              "."      },
-	{ "",                "."      },
-	{ ".",               "."      },
-	{ "..",              "."      },
-	{ "/",               "/"      },
-	{ "//",              "/", "//" },
-	{ "///",             "/", "//" },
-	{ "////",            "/", "//" },
-	{ "usr",             "."      },
-	{ "/usr",            "/"      },
-	{ "/usr/",           "/"      },
-	{ "/usr//",          "/"      },
-	{ "/usr/lib",        "/usr"   },
-	{ "usr/lib",         "usr"    },
-	{ "usr/lib///",      "usr"    },
-
-#if defined(__MINGW32__) || defined(_MSC_VER)
-	/* --- win32 type paths --- */
-	{ "\\",              "\\"     },
-	{ "\\\\",            "\\\\"   },
-	{ "\\usr",           "\\"     },
-	{ "\\usr\\",         "\\"     },
-	{ "\\usr\\\\",       "\\"     },
-	{ "\\usr\\lib",      "\\usr"  },
-	{ "usr\\lib",        "usr"    },
-	{ "usr\\lib\\\\\\",  "usr"    },
-	{ "C:a",             "C:."    },
-	{ "C:/",             "C:/"    },
-	{ "C:///",           "C:/"    },
-	{ "C:/usr",          "C:/"    },
-	{ "C:/usr/",         "C:/"    },
-	{ "C:/usr//",        "C:/"    },
-	{ "C:/usr/lib",      "C:/usr" },
-	{ "C:usr/lib",       "C:usr"  },
-	{ "C:usr/lib///",    "C:usr"  },
-	{ "\\\\\\",          "\\"     },
-	{ "\\\\\\\\",        "\\"     },
-	{ "C:",              "C:.", "." },
-#endif
-	{ NULL,              NULL     }
-};
-
-static int is_dotgitmodules(const char *path)
-{
-	return is_hfs_dotgitmodules(path) || is_ntfs_dotgitmodules(path);
-}
-
-static int cmp_by_st_size(const void *a, const void *b)
-{
-	intptr_t x = (intptr_t)((struct string_list_item *)a)->util;
-	intptr_t y = (intptr_t)((struct string_list_item *)b)->util;
-
-	return x > y ? -1 : (x < y ? +1 : 0);
-}
-
-/*
- * A very simple, reproducible pseudo-random generator. Copied from
- * `test-genrandom.c`.
- */
-static uint64_t my_random_value = 1234;
-
-static uint64_t my_random(void)
-{
-	my_random_value = my_random_value * 1103515245 + 12345;
-	return my_random_value;
-}
-
-/*
- * A fast approximation of the square root, without requiring math.h.
- *
- * It uses Newton's method to approximate the solution of 0 = x^2 - value.
- */
-static double my_sqrt(double value)
-{
-	const double epsilon = 1e-6;
-	double x = value;
-
-	if (value == 0)
-		return 0;
-
-	for (;;) {
-		double delta = (value / x - x) / 2;
-		if (delta < epsilon && delta > -epsilon)
-			return x + delta;
-		x += delta;
-	}
-}
-
-static int protect_ntfs_hfs_benchmark(int argc, const char **argv)
-{
-	size_t i, j, nr, min_len = 3, max_len = 20;
-	char **names;
-	int repetitions = 15, file_mode = 0100644;
-	uint64_t begin, end;
-	double m[3][2], v[3][2];
-	uint64_t cumul;
-	double cumul2;
-
-	if (argc > 1 && !strcmp(argv[1], "--with-symlink-mode")) {
-		file_mode = 0120000;
-		argc--;
-		argv++;
-	}
-
-	nr = argc > 1 ? strtoul(argv[1], NULL, 0) : 1000000;
-	ALLOC_ARRAY(names, nr);
-
-	if (argc > 2) {
-		min_len = strtoul(argv[2], NULL, 0);
-		if (argc > 3)
-			max_len = strtoul(argv[3], NULL, 0);
-		if (min_len > max_len)
-			die("min_len > max_len");
-	}
-
-	for (i = 0; i < nr; i++) {
-		size_t len = min_len + (my_random() % (max_len + 1 - min_len));
-
-		names[i] = xmallocz(len);
-		while (len > 0)
-			names[i][--len] = (char)(' ' + (my_random() % ('\x7f' - ' ')));
-	}
-
-	for (protect_ntfs = 0; protect_ntfs < 2; protect_ntfs++)
-		for (protect_hfs = 0; protect_hfs < 2; protect_hfs++) {
-			cumul = 0;
-			cumul2 = 0;
-			for (i = 0; i < repetitions; i++) {
-				begin = getnanotime();
-				for (j = 0; j < nr; j++)
-					verify_path(names[j], file_mode);
-				end = getnanotime();
-				printf("protect_ntfs = %d, protect_hfs = %d: %lfms\n", protect_ntfs, protect_hfs, (end-begin) / (double)1e6);
-				cumul += end - begin;
-				cumul2 += (end - begin) * (end - begin);
-			}
-			m[protect_ntfs][protect_hfs] = cumul / (double)repetitions;
-			v[protect_ntfs][protect_hfs] = my_sqrt(cumul2 / (double)repetitions - m[protect_ntfs][protect_hfs] * m[protect_ntfs][protect_hfs]);
-			printf("mean: %lfms, stddev: %lfms\n", m[protect_ntfs][protect_hfs] / (double)1e6, v[protect_ntfs][protect_hfs] / (double)1e6);
-		}
-
-	for (protect_ntfs = 0; protect_ntfs < 2; protect_ntfs++)
-		for (protect_hfs = 0; protect_hfs < 2; protect_hfs++)
-			printf("ntfs=%d/hfs=%d: %lf%% slower\n", protect_ntfs, protect_hfs, (m[protect_ntfs][protect_hfs] - m[0][0]) * 100 / m[0][0]);
-
-	return 0;
-}
-
-int cmd__path_utils(int argc, const char **argv)
-{
-	if (argc == 3 && !strcmp(argv[1], "normalize_path_copy")) {
-		char *buf = xmallocz(strlen(argv[2]));
-		int rv = normalize_path_copy(buf, argv[2]);
-		if (rv)
-			buf = "++failed++";
-		puts(buf);
-		return 0;
-	}
-
-	if (argc >= 2 && !strcmp(argv[1], "real_path")) {
-		struct strbuf realpath = STRBUF_INIT;
-		while (argc > 2) {
-			strbuf_realpath(&realpath, argv[2], 1);
-			puts(realpath.buf);
-			argc--;
-			argv++;
-		}
-		strbuf_release(&realpath);
-		return 0;
-	}
-
-	if (argc >= 2 && !strcmp(argv[1], "absolute_path")) {
-		while (argc > 2) {
-			puts(absolute_path(argv[2]));
-			argc--;
-			argv++;
-		}
-		return 0;
-	}
-
-	if (argc == 4 && !strcmp(argv[1], "longest_ancestor_length")) {
-		int len;
-		struct string_list ceiling_dirs = STRING_LIST_INIT_DUP;
-		char *path = xstrdup(argv[2]);
-
-		/*
-		 * We have to normalize the arguments because under
-		 * Windows, bash mangles arguments that look like
-		 * absolute POSIX paths or colon-separate lists of
-		 * absolute POSIX paths into DOS paths (e.g.,
-		 * "/foo:/foo/bar" might be converted to
-		 * "D:\Src\msysgit\foo;D:\Src\msysgit\foo\bar"),
-		 * whereas longest_ancestor_length() requires paths
-		 * that use forward slashes.
-		 */
-		if (normalize_path_copy(path, path))
-			die("Path \"%s\" could not be normalized", argv[2]);
-		string_list_split(&ceiling_dirs, argv[3], PATH_SEP, -1);
-		filter_string_list(&ceiling_dirs, 0,
-				   normalize_ceiling_entry, NULL);
-		len = longest_ancestor_length(path, &ceiling_dirs);
-		string_list_clear(&ceiling_dirs, 0);
-		free(path);
-		printf("%d\n", len);
-		return 0;
-	}
-
-	if (argc >= 4 && !strcmp(argv[1], "prefix_path")) {
-		const char *prefix = argv[2];
-		int prefix_len = strlen(prefix);
-		int nongit_ok;
-		setup_git_directory_gently(&nongit_ok);
-		while (argc > 3) {
-			puts(prefix_path(prefix, prefix_len, argv[3]));
-			argc--;
-			argv++;
-		}
-		return 0;
-	}
-
-	if (argc == 4 && !strcmp(argv[1], "strip_path_suffix")) {
-		char *prefix = strip_path_suffix(argv[2], argv[3]);
-		printf("%s\n", prefix ? prefix : "(null)");
-		return 0;
-	}
-
-	if (argc == 3 && !strcmp(argv[1], "print_path")) {
-		puts(argv[2]);
-		return 0;
-	}
-
-	if (argc == 4 && !strcmp(argv[1], "relative_path")) {
-		struct strbuf sb = STRBUF_INIT;
-		const char *in, *prefix, *rel;
-		normalize_argv_string(&in, argv[2]);
-		normalize_argv_string(&prefix, argv[3]);
-		rel = relative_path(in, prefix, &sb);
-		if (!rel)
-			puts("(null)");
-		else
-			puts(strlen(rel) > 0 ? rel : "(empty)");
-		strbuf_release(&sb);
-		return 0;
-	}
-
-	if (argc == 2 && !strcmp(argv[1], "basename"))
-		return test_function(basename_data, posix_basename, argv[1]);
-
-	if (argc == 2 && !strcmp(argv[1], "dirname"))
-		return test_function(dirname_data, posix_dirname, argv[1]);
-
-	if (argc > 2 && !strcmp(argv[1], "is_dotgitmodules")) {
-		int res = 0, expect = 1, i;
-		for (i = 2; i < argc; i++)
-			if (!strcmp("--not", argv[i]))
-				expect = !expect;
-			else if (expect != is_dotgitmodules(argv[i]))
-				res = error("'%s' is %s.gitmodules", argv[i],
-					    expect ? "not " : "");
-			else
-				fprintf(stderr, "ok: '%s' is %s.gitmodules\n",
-					argv[i], expect ? "" : "not ");
-		return !!res;
-	}
-
-	if (argc > 2 && !strcmp(argv[1], "file-size")) {
-		int res = 0, i;
-		struct stat st;
-
-		for (i = 2; i < argc; i++)
-			if (stat(argv[i], &st))
-				res = error_errno("Cannot stat '%s'", argv[i]);
-			else
-				printf("%"PRIuMAX"\n", (uintmax_t)st.st_size);
-		return !!res;
-	}
-
-	if (argc == 4 && !strcmp(argv[1], "skip-n-bytes")) {
-		int fd = open(argv[2], O_RDONLY), offset = atoi(argv[3]);
-		char buffer[65536];
-
-		if (fd < 0)
-			die_errno("could not open '%s'", argv[2]);
-		if (lseek(fd, offset, SEEK_SET) < 0)
-			die_errno("could not skip %d bytes", offset);
-		for (;;) {
-			ssize_t count = read(fd, buffer, sizeof(buffer));
-			if (count < 0)
-				die_errno("could not read '%s'", argv[2]);
-			if (!count)
-				break;
-			if (write(1, buffer, count) < 0)
-				die_errno("could not write to stdout");
-		}
-		close(fd);
-		return 0;
-	}
-
-	if (argc > 5 && !strcmp(argv[1], "slice-tests")) {
-		int res = 0;
-		long offset, stride, i;
-		struct string_list list = STRING_LIST_INIT_NODUP;
-		struct stat st;
-
-		offset = strtol(argv[2], NULL, 10);
-		stride = strtol(argv[3], NULL, 10);
-		if (stride < 1)
-			stride = 1;
-		for (i = 4; i < argc; i++)
-			if (stat(argv[i], &st))
-				res = error_errno("Cannot stat '%s'", argv[i]);
-			else
-				string_list_append(&list, argv[i])->util =
-					(void *)(intptr_t)st.st_size;
-		QSORT(list.items, list.nr, cmp_by_st_size);
-		for (i = offset; i < list.nr; i+= stride)
-			printf("%s\n", list.items[i].string);
-
-		return !!res;
-	}
-
-	if (argc > 1 && !strcmp(argv[1], "protect_ntfs_hfs"))
-		return !!protect_ntfs_hfs_benchmark(argc - 1, argv + 1);
-
-	if (argc > 1 && !strcmp(argv[1], "is_valid_path")) {
-		int res = 0, expect = 1, i;
-
-		for (i = 2; i < argc; i++)
-			if (!strcmp("--not", argv[i]))
-				expect = 0;
-			else if (expect != is_valid_path(argv[i]))
-				res = error("'%s' is%s a valid path",
-					    argv[i], expect ? " not" : "");
-			else
-				fprintf(stderr,
-					"'%s' is%s a valid path\n",
-					argv[i], expect ? "" : " not");
-
-		return !!res;
-	}
-
-	fprintf(stderr, "%s: unknown function name: %s\n", argv[0],
-		argv[1] ? argv[1] : "(there was none)");
-	return 1;
-}