revert "checkout: introduce checkout.overlayMode config"

diff --git a/read-cache.c b/read-cache.c
index 4ca81286c00c57484a3567a56fa4d441725708da..978d43f6763999c90845eefb5912135ee1a76d47 100644 (file)
--- a/read-cache.c
+++ b/read-cache.c
@@ -590,13 +590,19 @@ int remove_index_entry_at(struct index_state *istate, int pos)
  * CE_REMOVE is set in ce_flags.  This is much more effective than
  * calling remove_index_entry_at() for each entry to be removed.
  */
-void remove_marked_cache_entries(struct index_state *istate)
+void remove_marked_cache_entries(struct index_state *istate, int invalidate)
 {
        struct cache_entry **ce_array = istate->cache;
        unsigned int i, j;
 
        for (i = j = 0; i < istate->cache_nr; i++) {
                if (ce_array[i]->ce_flags & CE_REMOVE) {
+                       if (invalidate) {
+                               cache_tree_invalidate_path(istate,
+                                                          ce_array[i]->name);
+                               untracked_cache_remove_from_index(istate,
+                                                                 ce_array[i]->name);
+                       }
                        remove_name_hash(istate, ce_array[i]);
                        save_or_free_index_entry(istate, ce_array[i]);
                }
@@ -2176,7 +2182,8 @@ int do_read_index(struct index_state *istate, const char *path, int must_exist)
 
        src_offset = sizeof(*hdr);
 
-       nr_threads = git_config_get_index_threads();
+       if (git_config_get_index_threads(&nr_threads))
+               nr_threads = 1;
 
        /* TODO: does creating more threads than cores help? */
        if (!nr_threads) {
@@ -2689,6 +2696,36 @@ void update_index_if_able(struct index_state *istate, struct lock_file *lockfile
                rollback_lock_file(lockfile);
 }
 
+static int record_eoie(void)
+{
+       int val;
+
+       if (!git_config_get_bool("index.recordendofindexentries", &val))
+               return val;
+
+       /*
+        * As a convenience, the end of index entries extension
+        * used for threading is written by default if the user
+        * explicitly requested threaded index reads.
+        */
+       return !git_config_get_index_threads(&val) && val != 1;
+}
+
+static int record_ieot(void)
+{
+       int val;
+
+       if (!git_config_get_bool("index.recordoffsettable", &val))
+               return val;
+
+       /*
+        * As a convenience, the offset table used for threading is
+        * written by default if the user explicitly requested
+        * threaded index reads.
+        */
+       return !git_config_get_index_threads(&val) && val != 1;
+}
+
 /*
  * On success, `tempfile` is closed. If it is the temporary file
  * of a `struct lock_file`, we will therefore effectively perform
@@ -2747,12 +2784,10 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
        if (ce_write(&c, newfd, &hdr, sizeof(hdr)) < 0)
                return -1;
 
-       if (HAVE_THREADS)
-               nr_threads = git_config_get_index_threads();
-       else
+       if (!HAVE_THREADS || git_config_get_index_threads(&nr_threads))
                nr_threads = 1;
 
-       if (nr_threads != 1) {
+       if (nr_threads != 1 && record_ieot()) {
                int ieot_blocks, cpus;
 
                /*
@@ -2936,7 +2971,7 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
         * read.  Write it out regardless of the strip_extensions parameter as we need it
         * when loading the shared index.
         */
-       if (offset) {
+       if (offset && record_eoie()) {
                struct strbuf sb = STRBUF_INIT;
 
                write_eoie_extension(&sb, &eoie_c, offset);
@@ -3150,7 +3185,8 @@ int write_locked_index(struct index_state *istate, struct lock_file *lock,
                struct tempfile *temp;
                int saved_errno;
 
-               temp = mks_tempfile(git_path("sharedindex_XXXXXX"));
+               /* Same initial permissions as the main .git/index file */
+               temp = mks_tempfile_sm(git_path("sharedindex_XXXXXX"), 0, 0666);
                if (!temp) {
                        oidclr(&si->base_oid);
                        ret = do_write_locked_index(istate, lock, flags);