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, 193 deletions

diff --git a/third_party/git/ewah/bitmap.c b/third_party/git/ewah/bitmap.c
deleted file mode 100644
index d8cec585af97..000000000000
--- a/third_party/git/ewah/bitmap.c
+++ /dev/null
@@ -1,193 +0,0 @@
-/**
- * Copyright 2013, GitHub, Inc
- * Copyright 2009-2013, Daniel Lemire, Cliff Moon,
- *	David McIntosh, Robert Becho, Google Inc. and Veronika Zenz
- *
- * 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 "ewok.h"
-
-#define EWAH_MASK(x) ((eword_t)1 << (x % BITS_IN_EWORD))
-#define EWAH_BLOCK(x) (x / BITS_IN_EWORD)
-
-struct bitmap *bitmap_word_alloc(size_t word_alloc)
-{
-	struct bitmap *bitmap = xmalloc(sizeof(struct bitmap));
-	bitmap->words = xcalloc(word_alloc, sizeof(eword_t));
-	bitmap->word_alloc = word_alloc;
-	return bitmap;
-}
-
-struct bitmap *bitmap_new(void)
-{
-	return bitmap_word_alloc(32);
-}
-
-void bitmap_set(struct bitmap *self, size_t pos)
-{
-	size_t block = EWAH_BLOCK(pos);
-
-	if (block >= self->word_alloc) {
-		size_t old_size = self->word_alloc;
-		self->word_alloc = block ? block * 2 : 1;
-		REALLOC_ARRAY(self->words, self->word_alloc);
-		memset(self->words + old_size, 0x0,
-			(self->word_alloc - old_size) * sizeof(eword_t));
-	}
-
-	self->words[block] |= EWAH_MASK(pos);
-}
-
-void bitmap_unset(struct bitmap *self, size_t pos)
-{
-	size_t block = EWAH_BLOCK(pos);
-
-	if (block < self->word_alloc)
-		self->words[block] &= ~EWAH_MASK(pos);
-}
-
-int bitmap_get(struct bitmap *self, size_t pos)
-{
-	size_t block = EWAH_BLOCK(pos);
-	return block < self->word_alloc &&
-		(self->words[block] & EWAH_MASK(pos)) != 0;
-}
-
-struct ewah_bitmap *bitmap_to_ewah(struct bitmap *bitmap)
-{
-	struct ewah_bitmap *ewah = ewah_new();
-	size_t i, running_empty_words = 0;
-	eword_t last_word = 0;
-
-	for (i = 0; i < bitmap->word_alloc; ++i) {
-		if (bitmap->words[i] == 0) {
-			running_empty_words++;
-			continue;
-		}
-
-		if (last_word != 0)
-			ewah_add(ewah, last_word);
-
-		if (running_empty_words > 0) {
-			ewah_add_empty_words(ewah, 0, running_empty_words);
-			running_empty_words = 0;
-		}
-
-		last_word = bitmap->words[i];
-	}
-
-	ewah_add(ewah, last_word);
-	return ewah;
-}
-
-struct bitmap *ewah_to_bitmap(struct ewah_bitmap *ewah)
-{
-	struct bitmap *bitmap = bitmap_new();
-	struct ewah_iterator it;
-	eword_t blowup;
-	size_t i = 0;
-
-	ewah_iterator_init(&it, ewah);
-
-	while (ewah_iterator_next(&blowup, &it)) {
-		ALLOC_GROW(bitmap->words, i + 1, bitmap->word_alloc);
-		bitmap->words[i++] = blowup;
-	}
-
-	bitmap->word_alloc = i;
-	return bitmap;
-}
-
-void bitmap_and_not(struct bitmap *self, struct bitmap *other)
-{
-	const size_t count = (self->word_alloc < other->word_alloc) ?
-		self->word_alloc : other->word_alloc;
-
-	size_t i;
-
-	for (i = 0; i < count; ++i)
-		self->words[i] &= ~other->words[i];
-}
-
-void bitmap_or_ewah(struct bitmap *self, struct ewah_bitmap *other)
-{
-	size_t original_size = self->word_alloc;
-	size_t other_final = (other->bit_size / BITS_IN_EWORD) + 1;
-	size_t i = 0;
-	struct ewah_iterator it;
-	eword_t word;
-
-	if (self->word_alloc < other_final) {
-		self->word_alloc = other_final;
-		REALLOC_ARRAY(self->words, self->word_alloc);
-		memset(self->words + original_size, 0x0,
-			(self->word_alloc - original_size) * sizeof(eword_t));
-	}
-
-	ewah_iterator_init(&it, other);
-
-	while (ewah_iterator_next(&word, &it))
-		self->words[i++] |= word;
-}
-
-size_t bitmap_popcount(struct bitmap *self)
-{
-	size_t i, count = 0;
-
-	for (i = 0; i < self->word_alloc; ++i)
-		count += ewah_bit_popcount64(self->words[i]);
-
-	return count;
-}
-
-int bitmap_equals(struct bitmap *self, struct bitmap *other)
-{
-	struct bitmap *big, *small;
-	size_t i;
-
-	if (self->word_alloc < other->word_alloc) {
-		small = self;
-		big = other;
-	} else {
-		small = other;
-		big = self;
-	}
-
-	for (i = 0; i < small->word_alloc; ++i) {
-		if (small->words[i] != big->words[i])
-			return 0;
-	}
-
-	for (; i < big->word_alloc; ++i) {
-		if (big->words[i] != 0)
-			return 0;
-	}
-
-	return 1;
-}
-
-void bitmap_reset(struct bitmap *bitmap)
-{
-	memset(bitmap->words, 0x0, bitmap->word_alloc * sizeof(eword_t));
-}
-
-void bitmap_free(struct bitmap *bitmap)
-{
-	if (bitmap == NULL)
-		return;
-
-	free(bitmap->words);
-	free(bitmap);
-}