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, 158 deletions

diff --git a/third_party/git/preload-index.c b/third_party/git/preload-index.c
deleted file mode 100644
index ed6eaa47388a..000000000000
--- a/third_party/git/preload-index.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- * Copyright (C) 2008 Linus Torvalds
- */
-#include "cache.h"
-#include "pathspec.h"
-#include "dir.h"
-#include "fsmonitor.h"
-#include "config.h"
-#include "progress.h"
-#include "thread-utils.h"
-#include "repository.h"
-
-/*
- * Mostly randomly chosen maximum thread counts: we
- * cap the parallelism to 20 threads, and we want
- * to have at least 500 lstat's per thread for it to
- * be worth starting a thread.
- */
-#define MAX_PARALLEL (20)
-#define THREAD_COST (500)
-
-struct progress_data {
-	unsigned long n;
-	struct progress *progress;
-	pthread_mutex_t mutex;
-};
-
-struct thread_data {
-	pthread_t pthread;
-	struct index_state *index;
-	struct pathspec pathspec;
-	struct progress_data *progress;
-	int offset, nr;
-};
-
-static void *preload_thread(void *_data)
-{
-	int nr, last_nr;
-	struct thread_data *p = _data;
-	struct index_state *index = p->index;
-	struct cache_entry **cep = index->cache + p->offset;
-	struct cache_def cache = CACHE_DEF_INIT;
-
-	nr = p->nr;
-	if (nr + p->offset > index->cache_nr)
-		nr = index->cache_nr - p->offset;
-	last_nr = nr;
-
-	do {
-		struct cache_entry *ce = *cep++;
-		struct stat st;
-
-		if (ce_stage(ce))
-			continue;
-		if (S_ISGITLINK(ce->ce_mode))
-			continue;
-		if (ce_uptodate(ce))
-			continue;
-		if (ce_skip_worktree(ce))
-			continue;
-		if (ce->ce_flags & CE_FSMONITOR_VALID)
-			continue;
-		if (p->progress && !(nr & 31)) {
-			struct progress_data *pd = p->progress;
-
-			pthread_mutex_lock(&pd->mutex);
-			pd->n += last_nr - nr;
-			display_progress(pd->progress, pd->n);
-			pthread_mutex_unlock(&pd->mutex);
-			last_nr = nr;
-		}
-		if (!ce_path_match(index, ce, &p->pathspec, NULL))
-			continue;
-		if (threaded_has_symlink_leading_path(&cache, ce->name, ce_namelen(ce)))
-			continue;
-		if (lstat(ce->name, &st))
-			continue;
-		if (ie_match_stat(index, ce, &st, CE_MATCH_RACY_IS_DIRTY|CE_MATCH_IGNORE_FSMONITOR))
-			continue;
-		ce_mark_uptodate(ce);
-		mark_fsmonitor_valid(index, ce);
-	} while (--nr > 0);
-	if (p->progress) {
-		struct progress_data *pd = p->progress;
-
-		pthread_mutex_lock(&pd->mutex);
-		display_progress(pd->progress, pd->n + last_nr);
-		pthread_mutex_unlock(&pd->mutex);
-	}
-	cache_def_clear(&cache);
-	return NULL;
-}
-
-void preload_index(struct index_state *index,
-		   const struct pathspec *pathspec,
-		   unsigned int refresh_flags)
-{
-	int threads, i, work, offset;
-	struct thread_data data[MAX_PARALLEL];
-	struct progress_data pd;
-
-	if (!HAVE_THREADS || !core_preload_index)
-		return;
-
-	threads = index->cache_nr / THREAD_COST;
-	if ((index->cache_nr > 1) && (threads < 2) && git_env_bool("GIT_TEST_PRELOAD_INDEX", 0))
-		threads = 2;
-	if (threads < 2)
-		return;
-	trace_performance_enter();
-	if (threads > MAX_PARALLEL)
-		threads = MAX_PARALLEL;
-	offset = 0;
-	work = DIV_ROUND_UP(index->cache_nr, threads);
-	memset(&data, 0, sizeof(data));
-
-	memset(&pd, 0, sizeof(pd));
-	if (refresh_flags & REFRESH_PROGRESS && isatty(2)) {
-		pd.progress = start_delayed_progress(_("Refreshing index"), index->cache_nr);
-		pthread_mutex_init(&pd.mutex, NULL);
-	}
-
-	for (i = 0; i < threads; i++) {
-		struct thread_data *p = data+i;
-		int err;
-
-		p->index = index;
-		if (pathspec)
-			copy_pathspec(&p->pathspec, pathspec);
-		p->offset = offset;
-		p->nr = work;
-		if (pd.progress)
-			p->progress = &pd;
-		offset += work;
-		err = pthread_create(&p->pthread, NULL, preload_thread, p);
-
-		if (err)
-			die(_("unable to create threaded lstat: %s"), strerror(err));
-	}
-	for (i = 0; i < threads; i++) {
-		struct thread_data *p = data+i;
-		if (pthread_join(p->pthread, NULL))
-			die("unable to join threaded lstat");
-	}
-	stop_progress(&pd.progress);
-
-	trace_performance_leave("preload index");
-}
-
-int repo_read_index_preload(struct repository *repo,
-			    const struct pathspec *pathspec,
-			    unsigned int refresh_flags)
-{
-	int retval = repo_read_index(repo);
-
-	preload_index(repo->index, pathspec, refresh_flags);
-	return retval;
-}