1 files changed, 0 insertions, 262 deletions
diff --git a/third_party/git/fsmonitor.c b/third_party/git/fsmonitor.c
deleted file mode 100644
index 231e83a94d..0000000000
--- a/third_party/git/fsmonitor.c
+++ /dev/null
@@ -1,262 +0,0 @@
-#include "cache.h"
-#include "config.h"
-#include "dir.h"
-#include "ewah/ewok.h"
-#include "fsmonitor.h"
-#include "run-command.h"
-#include "strbuf.h"
-
-#define INDEX_EXTENSION_VERSION	(1)
-#define HOOK_INTERFACE_VERSION	(1)
-
-struct trace_key trace_fsmonitor = TRACE_KEY_INIT(FSMONITOR);
-
-static void fsmonitor_ewah_callback(size_t pos, void *is)
-{
-	struct index_state *istate = (struct index_state *)is;
-	struct cache_entry *ce = istate->cache[pos];
-
-	ce->ce_flags &= ~CE_FSMONITOR_VALID;
-}
-
-int read_fsmonitor_extension(struct index_state *istate, const void *data,
-	unsigned long sz)
-{
-	const char *index = data;
-	uint32_t hdr_version;
-	uint32_t ewah_size;
-	struct ewah_bitmap *fsmonitor_dirty;
-	int ret;
-
-	if (sz < sizeof(uint32_t) + sizeof(uint64_t) + sizeof(uint32_t))
-		return error("corrupt fsmonitor extension (too short)");
-
-	hdr_version = get_be32(index);
-	index += sizeof(uint32_t);
-	if (hdr_version != INDEX_EXTENSION_VERSION)
-		return error("bad fsmonitor version %d", hdr_version);
-
-	istate->fsmonitor_last_update = get_be64(index);
-	index += sizeof(uint64_t);
-
-	ewah_size = get_be32(index);
-	index += sizeof(uint32_t);
-
-	fsmonitor_dirty = ewah_new();
-	ret = ewah_read_mmap(fsmonitor_dirty, index, ewah_size);
-	if (ret != ewah_size) {
-		ewah_free(fsmonitor_dirty);
-		return error("failed to parse ewah bitmap reading fsmonitor index extension");
-	}
-	istate->fsmonitor_dirty = fsmonitor_dirty;
-
-	trace_printf_key(&trace_fsmonitor, "read fsmonitor extension successful");
-	return 0;
-}
-
-void fill_fsmonitor_bitmap(struct index_state *istate)
-{
-	unsigned int i;
-	istate->fsmonitor_dirty = ewah_new();
-	for (i = 0; i < istate->cache_nr; i++)
-		if (!(istate->cache[i]->ce_flags & CE_FSMONITOR_VALID))
-			ewah_set(istate->fsmonitor_dirty, i);
-}
-
-void write_fsmonitor_extension(struct strbuf *sb, struct index_state *istate)
-{
-	uint32_t hdr_version;
-	uint64_t tm;
-	uint32_t ewah_start;
-	uint32_t ewah_size = 0;
-	int fixup = 0;
-
-	put_be32(&hdr_version, INDEX_EXTENSION_VERSION);
-	strbuf_add(sb, &hdr_version, sizeof(uint32_t));
-
-	put_be64(&tm, istate->fsmonitor_last_update);
-	strbuf_add(sb, &tm, sizeof(uint64_t));
-	fixup = sb->len;
-	strbuf_add(sb, &ewah_size, sizeof(uint32_t)); /* we'll fix this up later */
-
-	ewah_start = sb->len;
-	ewah_serialize_strbuf(istate->fsmonitor_dirty, sb);
-	ewah_free(istate->fsmonitor_dirty);
-	istate->fsmonitor_dirty = NULL;
-
-	/* fix up size field */
-	put_be32(&ewah_size, sb->len - ewah_start);
-	memcpy(sb->buf + fixup, &ewah_size, sizeof(uint32_t));
-
-	trace_printf_key(&trace_fsmonitor, "write fsmonitor extension successful");
-}
-
-/*
- * Call the query-fsmonitor hook passing the time of the last saved results.
- */
-static int query_fsmonitor(int version, uint64_t last_update, struct strbuf *query_result)
-{
-	struct child_process cp = CHILD_PROCESS_INIT;
-
-	if (!core_fsmonitor)
-		return -1;
-
-	argv_array_push(&cp.args, core_fsmonitor);
-	argv_array_pushf(&cp.args, "%d", version);
-	argv_array_pushf(&cp.args, "%" PRIuMAX, (uintmax_t)last_update);
-	cp.use_shell = 1;
-	cp.dir = get_git_work_tree();
-
-	return capture_command(&cp, query_result, 1024);
-}
-
-static void fsmonitor_refresh_callback(struct index_state *istate, const char *name)
-{
-	int pos = index_name_pos(istate, name, strlen(name));
-
-	if (pos >= 0) {
-		struct cache_entry *ce = istate->cache[pos];
-		ce->ce_flags &= ~CE_FSMONITOR_VALID;
-	}
-
-	/*
-	 * Mark the untracked cache dirty even if it wasn't found in the index
-	 * as it could be a new untracked file.
-	 */
-	trace_printf_key(&trace_fsmonitor, "fsmonitor_refresh_callback '%s'", name);
-	untracked_cache_invalidate_path(istate, name, 0);
-}
-
-void refresh_fsmonitor(struct index_state *istate)
-{
-	struct strbuf query_result = STRBUF_INIT;
-	int query_success = 0;
-	size_t bol; /* beginning of line */
-	uint64_t last_update;
-	char *buf;
-	unsigned int i;
-
-	if (!core_fsmonitor || istate->fsmonitor_has_run_once)
-		return;
-	istate->fsmonitor_has_run_once = 1;
-
-	trace_printf_key(&trace_fsmonitor, "refresh fsmonitor");
-	/*
-	 * This could be racy so save the date/time now and query_fsmonitor
-	 * should be inclusive to ensure we don't miss potential changes.
-	 */
-	last_update = getnanotime();
-
-	/*
-	 * If we have a last update time, call query_fsmonitor for the set of
-	 * changes since that time, else assume everything is possibly dirty
-	 * and check it all.
-	 */
-	if (istate->fsmonitor_last_update) {
-		query_success = !query_fsmonitor(HOOK_INTERFACE_VERSION,
-			istate->fsmonitor_last_update, &query_result);
-		trace_performance_since(last_update, "fsmonitor process '%s'", core_fsmonitor);
-		trace_printf_key(&trace_fsmonitor, "fsmonitor process '%s' returned %s",
-			core_fsmonitor, query_success ? "success" : "failure");
-	}
-
-	/* a fsmonitor process can return '/' to indicate all entries are invalid */
-	if (query_success && query_result.buf[0] != '/') {
-		/* Mark all entries returned by the monitor as dirty */
-		buf = query_result.buf;
-		bol = 0;
-		for (i = 0; i < query_result.len; i++) {
-			if (buf[i] != '\0')
-				continue;
-			fsmonitor_refresh_callback(istate, buf + bol);
-			bol = i + 1;
-		}
-		if (bol < query_result.len)
-			fsmonitor_refresh_callback(istate, buf + bol);
-	} else {
-		/* Mark all entries invalid */
-		for (i = 0; i < istate->cache_nr; i++)
-			istate->cache[i]->ce_flags &= ~CE_FSMONITOR_VALID;
-
-		/* If we're going to check every file, ensure we save the results */
-		istate->cache_changed |= FSMONITOR_CHANGED;
-
-		if (istate->untracked)
-			istate->untracked->use_fsmonitor = 0;
-	}
-	strbuf_release(&query_result);
-
-	/* Now that we've updated istate, save the last_update time */
-	istate->fsmonitor_last_update = last_update;
-}
-
-void add_fsmonitor(struct index_state *istate)
-{
-	unsigned int i;
-
-	if (!istate->fsmonitor_last_update) {
-		trace_printf_key(&trace_fsmonitor, "add fsmonitor");
-		istate->cache_changed |= FSMONITOR_CHANGED;
-		istate->fsmonitor_last_update = getnanotime();
-
-		/* reset the fsmonitor state */
-		for (i = 0; i < istate->cache_nr; i++)
-			istate->cache[i]->ce_flags &= ~CE_FSMONITOR_VALID;
-
-		/* reset the untracked cache */
-		if (istate->untracked) {
-			add_untracked_cache(istate);
-			istate->untracked->use_fsmonitor = 1;
-		}
-
-		/* Update the fsmonitor state */
-		refresh_fsmonitor(istate);
-	}
-}
-
-void remove_fsmonitor(struct index_state *istate)
-{
-	if (istate->fsmonitor_last_update) {
-		trace_printf_key(&trace_fsmonitor, "remove fsmonitor");
-		istate->cache_changed |= FSMONITOR_CHANGED;
-		istate->fsmonitor_last_update = 0;
-	}
-}
-
-void tweak_fsmonitor(struct index_state *istate)
-{
-	unsigned int i;
-	int fsmonitor_enabled = git_config_get_fsmonitor();
-
-	if (istate->fsmonitor_dirty) {
-		if (fsmonitor_enabled) {
-			/* Mark all entries valid */
-			for (i = 0; i < istate->cache_nr; i++) {
-				istate->cache[i]->ce_flags |= CE_FSMONITOR_VALID;
-			}
-
-			/* Mark all previously saved entries as dirty */
-			ewah_each_bit(istate->fsmonitor_dirty, fsmonitor_ewah_callback, istate);
-
-			/* Now mark the untracked cache for fsmonitor usage */
-			if (istate->untracked)
-				istate->untracked->use_fsmonitor = 1;
-		}
-
-		ewah_free(istate->fsmonitor_dirty);
-		istate->fsmonitor_dirty = NULL;
-	}
-
-	switch (fsmonitor_enabled) {
-	case -1: /* keep: do nothing */
-		break;
-	case 0: /* false */
-		remove_fsmonitor(istate);
-		break;
-	case 1: /* true */
-		add_fsmonitor(istate);
-		break;
-	default: /* unknown value: do nothing */
-		break;
-	}
-}