/test-date
/test-delta
/test-dump-cache-tree
+/test-dump-split-index
/test-scrap-cache-tree
/test-genrandom
/test-hashmap
--show-toplevel::
Show the absolute path of the top-level directory.
+--shared-index-path::
+ Show the path to the shared index file in split index mode, or
+ empty if not in split-index mode.
+
Other Options
~~~~~~~~~~~~~
Only meaningful with `--stdin` or `--index-info`; paths are
separated with NUL character instead of LF.
+--split-index::
+--no-split-index::
+ Enable or disable split index mode. If enabled, the index is
+ split into two files, $GIT_DIR/index and $GIT_DIR/sharedindex.<SHA-1>.
+ Changes are accumulated in $GIT_DIR/index while the shared
+ index file contains all index entries stays unchanged. If
+ split-index mode is already enabled and `--split-index` is
+ given again, all changes in $GIT_DIR/index are pushed back to
+ the shared index file. This mode is designed for very large
+ indexes that take a signficant amount of time to read or write.
+
\--::
Do not interpret any more arguments as options.
The current index file for the repository. It is
usually not found in a bare repository.
+sharedindex.<SHA-1>::
+ The shared index part, to be referenced by $GIT_DIR/index and
+ other temporary index files. Only valid in split index mode.
+
info::
Additional information about the repository is recorded
in this directory.
(Version 4) In version 4, the padding after the pathname does not
exist.
+ Interpretation of index entries in split index mode is completely
+ different. See below for details.
+
== Extensions
=== Cached tree
- At most three 160-bit object names of the entry in stages from 1 to 3
(nothing is written for a missing stage).
+=== Split index
+
+ In split index mode, the majority of index entries could be stored
+ in a separate file. This extension records the changes to be made on
+ top of that to produce the final index.
+
+ The signature for this extension is { 'l', 'i, 'n', 'k' }.
+
+ The extension consists of:
+
+ - 160-bit SHA-1 of the shared index file. The shared index file path
+ is $GIT_DIR/sharedindex.<SHA-1>. If all 160 bits are zero, the
+ index does not require a shared index file.
+
+ - An ewah-encoded delete bitmap, each bit represents an entry in the
+ shared index. If a bit is set, its corresponding entry in the
+ shared index will be removed from the final index. Note, because
+ a delete operation changes index entry positions, but we do need
+ original positions in replace phase, it's best to just mark
+ entries for removal, then do a mass deletion after replacement.
+
+ - An ewah-encoded replace bitmap, each bit represents an entry in
+ the shared index. If a bit is set, its corresponding entry in the
+ shared index will be replaced with an entry in this index
+ file. All replaced entries are stored in sorted order in this
+ index. The first "1" bit in the replace bitmap corresponds to the
+ first index entry, the second "1" bit to the second entry and so
+ on. Replaced entries may have empty path names to save space.
+
+ The remaining index entries after replaced ones will be added to the
+ final index. These added entries are also sorted by entry namme then
+ stage.
TEST_PROGRAMS_NEED_X += test-date
TEST_PROGRAMS_NEED_X += test-delta
TEST_PROGRAMS_NEED_X += test-dump-cache-tree
+TEST_PROGRAMS_NEED_X += test-dump-split-index
TEST_PROGRAMS_NEED_X += test-genrandom
TEST_PROGRAMS_NEED_X += test-hashmap
TEST_PROGRAMS_NEED_X += test-index-version
LIB_OBJS += shallow.o
LIB_OBJS += sideband.o
LIB_OBJS += sigchain.o
+LIB_OBJS += split-index.o
LIB_OBJS += strbuf.o
LIB_OBJS += streaming.o
LIB_OBJS += string-list.o
int cmd_add(int argc, const char **argv, const char *prefix)
{
int exit_status = 0;
- int newfd;
struct pathspec pathspec;
struct dir_struct dir;
int flags;
add_new_files = !take_worktree_changes && !refresh_only;
require_pathspec = !take_worktree_changes;
- newfd = hold_locked_index(&lock_file, 1);
+ hold_locked_index(&lock_file, 1);
flags = ((verbose ? ADD_CACHE_VERBOSE : 0) |
(show_only ? ADD_CACHE_PRETEND : 0) |
finish:
if (active_cache_changed) {
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(&lock_file))
+ if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
die(_("Unable to write new index file"));
}
}
}
-static int checkout_target(struct cache_entry *ce, struct stat *st)
+static int checkout_target(struct index_state *istate,
+ struct cache_entry *ce, struct stat *st)
{
struct checkout costate;
memset(&costate, 0, sizeof(costate));
costate.base_dir = "";
costate.refresh_cache = 1;
+ costate.istate = istate;
if (checkout_entry(ce, &costate, NULL) || lstat(ce->name, st))
return error(_("cannot checkout %s"), ce->name);
return 0;
if (lstat(name, &st)) {
if (errno != ENOENT)
return error(_("%s: %s"), name, strerror(errno));
- if (checkout_target(ce, &st))
+ if (checkout_target(&the_index, ce, &st))
return -1;
}
if (verify_index_match(ce, &st))
}
*ce = active_cache[pos];
if (stat_ret < 0) {
- if (checkout_target(*ce, st))
+ if (checkout_target(&the_index, *ce, st))
return -1;
}
if (!cached && verify_index_match(*ce, st))
{
struct patch *patch;
struct index_state result = { NULL };
- int fd;
+ static struct lock_file lock;
/* Once we start supporting the reverse patch, it may be
* worth showing the new sha1 prefix, but until then...
die ("Could not add %s to temporary index", name);
}
- fd = open(filename, O_WRONLY | O_CREAT, 0666);
- if (fd < 0 || write_index(&result, fd) || close(fd))
+ hold_lock_file_for_update(&lock, filename, LOCK_DIE_ON_ERROR);
+ if (write_locked_index(&result, &lock, COMMIT_LOCK))
die ("Could not write temporary index to %s", filename);
discard_index(&result);
}
if (update_index) {
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(&lock_file))
+ if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
die(_("Unable to write new index file"));
}
* right now, but someday we might optimize diff-index --cached
* with cache-tree information.
*/
- cache_tree_invalidate_path(active_cache_tree, path);
+ cache_tree_invalidate_path(&the_index, path);
return commit;
}
int *newfd = opt->value;
state.refresh_cache = 1;
+ state.istate = &the_index;
if (*newfd < 0)
*newfd = hold_locked_index(&lock_file, 1);
return 0;
checkout_all(prefix, prefix_length);
if (0 <= newfd &&
- (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(&lock_file)))
+ write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
die("Unable to write new index file");
return 0;
}
int flag;
struct commit *head;
int errs = 0;
- int newfd;
struct lock_file *lock_file;
if (opts->track != BRANCH_TRACK_UNSPECIFIED)
lock_file = xcalloc(1, sizeof(struct lock_file));
- newfd = hold_locked_index(lock_file, 1);
+ hold_locked_index(lock_file, 1);
if (read_cache_preload(&opts->pathspec) < 0)
return error(_("corrupt index file"));
memset(&state, 0, sizeof(state));
state.force = 1;
state.refresh_cache = 1;
+ state.istate = &the_index;
for (pos = 0; pos < active_nr; pos++) {
struct cache_entry *ce = active_cache[pos];
if (ce->ce_flags & CE_MATCHED) {
}
}
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(lock_file))
+ if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
die(_("unable to write new index file"));
read_ref_full("HEAD", rev, 0, &flag);
{
int ret;
struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file));
- int newfd = hold_locked_index(lock_file, 1);
+ hold_locked_index(lock_file, 1);
if (read_cache_preload(NULL) < 0)
return error(_("corrupt index file"));
}
}
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(lock_file))
+ if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
die(_("unable to write new index file"));
if (!opts->force && !opts->quiet)
struct unpack_trees_options opts;
struct tree *tree;
struct tree_desc t;
- int err = 0, fd;
+ int err = 0;
if (option_no_checkout)
return 0;
setup_work_tree();
lock_file = xcalloc(1, sizeof(struct lock_file));
- fd = hold_locked_index(lock_file, 1);
+ hold_locked_index(lock_file, 1);
memset(&opts, 0, sizeof opts);
opts.update = 1;
if (unpack_trees(1, &t, &opts) < 0)
die(_("unable to checkout working tree"));
- if (write_cache(fd, active_cache, active_nr) ||
- commit_locked_index(lock_file))
+ if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
die(_("unable to write new index file"));
err |= run_hook_le(NULL, "post-checkout", sha1_to_hex(null_sha1),
static char *prepare_index(int argc, const char **argv, const char *prefix,
const struct commit *current_head, int is_status)
{
- int fd;
struct string_list partial;
struct pathspec pathspec;
int refresh_flags = REFRESH_QUIET;
if (interactive) {
char *old_index_env = NULL;
- fd = hold_locked_index(&index_lock, 1);
+ hold_locked_index(&index_lock, 1);
refresh_cache_or_die(refresh_flags);
- if (write_cache(fd, active_cache, active_nr) ||
- close_lock_file(&index_lock))
+ if (write_locked_index(&the_index, &index_lock, CLOSE_LOCK))
die(_("unable to create temporary index"));
old_index_env = getenv(INDEX_ENVIRONMENT);
* (B) on failure, rollback the real index.
*/
if (all || (also && pathspec.nr)) {
- fd = hold_locked_index(&index_lock, 1);
+ hold_locked_index(&index_lock, 1);
add_files_to_cache(also ? prefix : NULL, &pathspec, 0);
refresh_cache_or_die(refresh_flags);
update_main_cache_tree(WRITE_TREE_SILENT);
- if (write_cache(fd, active_cache, active_nr) ||
- close_lock_file(&index_lock))
+ if (write_locked_index(&the_index, &index_lock, CLOSE_LOCK))
die(_("unable to write new_index file"));
commit_style = COMMIT_NORMAL;
return index_lock.filename;
* We still need to refresh the index here.
*/
if (!only && !pathspec.nr) {
- fd = hold_locked_index(&index_lock, 1);
+ hold_locked_index(&index_lock, 1);
refresh_cache_or_die(refresh_flags);
if (active_cache_changed) {
update_main_cache_tree(WRITE_TREE_SILENT);
- if (write_cache(fd, active_cache, active_nr) ||
- commit_locked_index(&index_lock))
+ if (write_locked_index(&the_index, &index_lock,
+ COMMIT_LOCK))
die(_("unable to write new_index file"));
} else {
rollback_lock_file(&index_lock);
if (read_cache() < 0)
die(_("cannot read the index"));
- fd = hold_locked_index(&index_lock, 1);
+ hold_locked_index(&index_lock, 1);
add_remove_files(&partial);
refresh_cache(REFRESH_QUIET);
- if (write_cache(fd, active_cache, active_nr) ||
- close_lock_file(&index_lock))
+ if (write_locked_index(&the_index, &index_lock, CLOSE_LOCK))
die(_("unable to write new_index file"));
- fd = hold_lock_file_for_update(&false_lock,
- git_path("next-index-%"PRIuMAX,
- (uintmax_t) getpid()),
- LOCK_DIE_ON_ERROR);
+ hold_lock_file_for_update(&false_lock,
+ git_path("next-index-%"PRIuMAX,
+ (uintmax_t) getpid()),
+ LOCK_DIE_ON_ERROR);
create_base_index(current_head);
add_remove_files(&partial);
refresh_cache(REFRESH_QUIET);
- if (write_cache(fd, active_cache, active_nr) ||
- close_lock_file(&false_lock))
+ if (write_locked_index(&the_index, &false_lock, CLOSE_LOCK))
die(_("unable to write temporary index file"));
discard_cache();
struct commit_list *remoteheads,
struct commit *head, const char *head_arg)
{
- int index_fd;
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
- index_fd = hold_locked_index(lock, 1);
+ hold_locked_index(lock, 1);
refresh_cache(REFRESH_QUIET);
if (active_cache_changed &&
- (write_cache(index_fd, active_cache, active_nr) ||
- commit_locked_index(lock)))
+ write_locked_index(&the_index, lock, COMMIT_LOCK))
return error(_("Unable to write index."));
rollback_lock_file(lock);
int clean, x;
struct commit *result;
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
- int index_fd;
struct commit_list *reversed = NULL;
struct merge_options o;
struct commit_list *j;
for (j = common; j; j = j->next)
commit_list_insert(j->item, &reversed);
- index_fd = hold_locked_index(lock, 1);
+ hold_locked_index(lock, 1);
clean = merge_recursive(&o, head,
remoteheads->item, reversed, &result);
if (active_cache_changed &&
- (write_cache(index_fd, active_cache, active_nr) ||
- commit_locked_index(lock)))
+ write_locked_index(&the_index, lock, COMMIT_LOCK))
die (_("unable to write %s"), get_index_file());
rollback_lock_file(lock);
return clean ? 0 : 1;
int cmd_mv(int argc, const char **argv, const char *prefix)
{
- int i, newfd, gitmodules_modified = 0;
+ int i, gitmodules_modified = 0;
int verbose = 0, show_only = 0, force = 0, ignore_errors = 0;
struct option builtin_mv_options[] = {
OPT__VERBOSE(&verbose, N_("be verbose")),
if (--argc < 1)
usage_with_options(builtin_mv_usage, builtin_mv_options);
- newfd = hold_locked_index(&lock_file, 1);
+ hold_locked_index(&lock_file, 1);
if (read_cache() < 0)
die(_("index file corrupt"));
stage_updated_gitmodules();
if (active_cache_changed) {
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(&lock_file))
+ if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
die(_("Unable to write new index file"));
}
int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
{
- int i, newfd, stage = 0;
+ int i, stage = 0;
unsigned char sha1[20];
struct tree_desc t[MAX_UNPACK_TREES];
struct unpack_trees_options opts;
argc = parse_options(argc, argv, unused_prefix, read_tree_options,
read_tree_usage, 0);
- newfd = hold_locked_index(&lock_file, 1);
+ hold_locked_index(&lock_file, 1);
prefix_set = opts.prefix ? 1 : 0;
if (1 < opts.merge + opts.reset + prefix_set)
die("Which one? -m, --reset, or --prefix?");
+ /*
+ * NEEDSWORK
+ *
+ * The old index should be read anyway even if we're going to
+ * destroy all index entries because we still need to preserve
+ * certain information such as index version or split-index
+ * mode.
+ */
+
if (opts.reset || opts.merge || opts.prefix) {
if (read_cache_unmerged() && (opts.prefix || opts.merge))
die("You need to resolve your current index first");
* what came from the tree.
*/
if (nr_trees == 1 && !opts.prefix)
- prime_cache_tree(&active_cache_tree, trees[0]);
+ prime_cache_tree(&the_index, trees[0]);
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(&lock_file))
+ if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
die("unable to write new index file");
return 0;
}
if (reset_type == MIXED || reset_type == HARD) {
tree = parse_tree_indirect(sha1);
- prime_cache_tree(&active_cache_tree, tree);
+ prime_cache_tree(&the_index, tree);
}
return 0;
if (reset_type != SOFT) {
struct lock_file *lock = xcalloc(1, sizeof(*lock));
- int newfd = hold_locked_index(lock, 1);
+ hold_locked_index(lock, 1);
if (reset_type == MIXED) {
int flags = quiet ? REFRESH_QUIET : REFRESH_IN_PORCELAIN;
if (read_from_tree(&pathspec, sha1, intent_to_add))
die(_("Could not reset index file to revision '%s'."), rev);
}
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(lock))
+ if (write_locked_index(&the_index, lock, COMMIT_LOCK))
die(_("Could not write new index file."));
}
#include "parse-options.h"
#include "diff.h"
#include "revision.h"
+#include "split-index.h"
#define DO_REVS 1
#define DO_NOREV 2
: "false");
continue;
}
+ if (!strcmp(arg, "--shared-index-path")) {
+ if (read_cache() < 0)
+ die(_("Could not read the index"));
+ if (the_index.split_index) {
+ const unsigned char *sha1 = the_index.split_index->base_sha1;
+ puts(git_path("sharedindex.%s", sha1_to_hex(sha1)));
+ }
+ continue;
+ }
if (starts_with(arg, "--since=")) {
show_datestring("--max-age=", arg+8);
continue;
int cmd_rm(int argc, const char **argv, const char *prefix)
{
- int i, newfd;
+ int i;
struct pathspec pathspec;
char *seen;
if (!index_only)
setup_work_tree();
- newfd = hold_locked_index(&lock_file, 1);
+ hold_locked_index(&lock_file, 1);
if (read_cache() < 0)
die(_("index file corrupt"));
}
if (active_cache_changed) {
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(&lock_file))
+ if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
die(_("Unable to write new index file"));
}
#include "parse-options.h"
#include "pathspec.h"
#include "dir.h"
+#include "split-index.h"
/*
* Default to not allowing changes to the list of files. The
active_cache[pos]->ce_flags |= flag;
else
active_cache[pos]->ce_flags &= ~flag;
- cache_tree_invalidate_path(active_cache_tree, path);
- active_cache_changed = 1;
+ active_cache[pos]->ce_flags |= CE_UPDATE_IN_BASE;
+ cache_tree_invalidate_path(&the_index, path);
+ active_cache_changed |= CE_ENTRY_CHANGED;
return 0;
}
return -1;
default:
goto fail;
}
- cache_tree_invalidate_path(active_cache_tree, path);
- active_cache_changed = 1;
+ cache_tree_invalidate_path(&the_index, path);
+ ce->ce_flags |= CE_UPDATE_IN_BASE;
+ active_cache_changed |= CE_ENTRY_CHANGED;
report("chmod %cx '%s'", flip, path);
return;
fail:
char set_executable_bit = 0;
struct refresh_params refresh_args = {0, &has_errors};
int lock_error = 0;
+ int split_index = -1;
struct lock_file *lock_file;
struct parse_opt_ctx_t ctx;
int parseopt_state = PARSE_OPT_UNKNOWN;
resolve_undo_clear_callback},
OPT_INTEGER(0, "index-version", &preferred_index_format,
N_("write index in this format")),
+ OPT_BOOL(0, "split-index", &split_index,
+ N_("enable or disable split index")),
OPT_END()
};
INDEX_FORMAT_LB, INDEX_FORMAT_UB);
if (the_index.version != preferred_index_format)
- active_cache_changed = 1;
+ active_cache_changed |= SOMETHING_CHANGED;
the_index.version = preferred_index_format;
}
strbuf_release(&buf);
}
+ if (split_index > 0) {
+ init_split_index(&the_index);
+ the_index.cache_changed |= SPLIT_INDEX_ORDERED;
+ } else if (!split_index && the_index.split_index) {
+ /*
+ * can't discard_split_index(&the_index); because that
+ * will destroy split_index->base->cache[], which may
+ * be shared with the_index.cache[]. So yeah we're
+ * leaking a bit here.
+ */
+ the_index.split_index = NULL;
+ the_index.cache_changed |= SOMETHING_CHANGED;
+ }
+
if (active_cache_changed) {
if (newfd < 0) {
if (refresh_args.flags & REFRESH_QUIET)
exit(128);
unable_to_lock_index_die(get_index_file(), lock_error);
}
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(lock_file))
+ if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
die("Unable to write new index file");
}
return find_subtree(it, path, pathlen, 1);
}
-void cache_tree_invalidate_path(struct cache_tree *it, const char *path)
+static int do_invalidate_path(struct cache_tree *it, const char *path)
{
/* a/b/c
* ==> invalidate self
#endif
if (!it)
- return;
+ return 0;
slash = strchrnul(path, '/');
namelen = slash - path;
it->entry_count = -1;
(it->subtree_nr - pos - 1));
it->subtree_nr--;
}
- return;
+ return 1;
}
down = find_subtree(it, path, namelen, 0);
if (down)
- cache_tree_invalidate_path(down->cache_tree, slash + 1);
+ do_invalidate_path(down->cache_tree, slash + 1);
+ return 1;
}
-static int verify_cache(const struct cache_entry * const *cache,
+void cache_tree_invalidate_path(struct index_state *istate, const char *path)
+{
+ if (do_invalidate_path(istate->cache_tree, path))
+ istate->cache_changed |= CACHE_TREE_CHANGED;
+}
+
+static int verify_cache(struct cache_entry **cache,
int entries, int flags)
{
int i, funny;
}
static int update_one(struct cache_tree *it,
- const struct cache_entry * const *cache,
+ struct cache_entry **cache,
int entries,
const char *base,
int baselen,
return i;
}
-int cache_tree_update(struct cache_tree *it,
- const struct cache_entry * const *cache,
- int entries,
- int flags)
+int cache_tree_update(struct index_state *istate, int flags)
{
- int i, skip;
- i = verify_cache(cache, entries, flags);
+ struct cache_tree *it = istate->cache_tree;
+ struct cache_entry **cache = istate->cache;
+ int entries = istate->cache_nr;
+ int skip, i = verify_cache(cache, entries, flags);
+
if (i)
return i;
i = update_one(it, cache, entries, "", 0, &skip, flags);
if (i < 0)
return i;
+ istate->cache_changed |= CACHE_TREE_CHANGED;
return 0;
}
was_valid = cache_tree_fully_valid(active_cache_tree);
if (!was_valid) {
- if (cache_tree_update(active_cache_tree,
- (const struct cache_entry * const *)active_cache,
- active_nr, flags) < 0)
+ if (cache_tree_update(&the_index, flags) < 0)
return WRITE_TREE_UNMERGED_INDEX;
if (0 <= newfd) {
- if (!write_cache(newfd, active_cache, active_nr) &&
- !commit_lock_file(lock_file))
+ if (!write_locked_index(&the_index, lock_file, COMMIT_LOCK))
newfd = -1;
}
/* Not being able to write is fine -- we are only interested
it->entry_count = cnt;
}
-void prime_cache_tree(struct cache_tree **it, struct tree *tree)
+void prime_cache_tree(struct index_state *istate, struct tree *tree)
{
- cache_tree_free(it);
- *it = cache_tree();
- prime_cache_tree_rec(*it, tree);
+ cache_tree_free(&istate->cache_tree);
+ istate->cache_tree = cache_tree();
+ prime_cache_tree_rec(istate->cache_tree, tree);
+ istate->cache_changed |= CACHE_TREE_CHANGED;
}
/*
{
if (!the_index.cache_tree)
the_index.cache_tree = cache_tree();
- return cache_tree_update(the_index.cache_tree,
- (const struct cache_entry * const *)the_index.cache,
- the_index.cache_nr, flags);
+ return cache_tree_update(&the_index, flags);
}
struct cache_tree *cache_tree(void);
void cache_tree_free(struct cache_tree **);
-void cache_tree_invalidate_path(struct cache_tree *, const char *);
+void cache_tree_invalidate_path(struct index_state *, const char *);
struct cache_tree_sub *cache_tree_sub(struct cache_tree *, const char *);
void cache_tree_write(struct strbuf *, struct cache_tree *root);
struct cache_tree *cache_tree_read(const char *buffer, unsigned long size);
int cache_tree_fully_valid(struct cache_tree *);
-int cache_tree_update(struct cache_tree *, const struct cache_entry * const *, int, int);
+int cache_tree_update(struct index_state *, int);
int update_main_cache_tree(int);
#define WRITE_TREE_PREFIX_ERROR (-3)
int write_cache_as_tree(unsigned char *sha1, int flags, const char *prefix);
-void prime_cache_tree(struct cache_tree **, struct tree *);
+void prime_cache_tree(struct index_state *, struct tree *);
extern int cache_tree_matches_traversal(struct cache_tree *, struct name_entry *ent, struct traverse_info *info);
unsigned int ce_mode;
unsigned int ce_flags;
unsigned int ce_namelen;
+ unsigned int index; /* for link extension */
unsigned char sha1[20];
char name[FLEX_ARRAY]; /* more */
};
#define CE_STAGESHIFT 12
/*
- * Range 0xFFFF0000 in ce_flags is divided into
+ * Range 0xFFFF0FFF in ce_flags is divided into
* two parts: in-memory flags and on-disk ones.
* Flags in CE_EXTENDED_FLAGS will get saved on-disk
* if you want to save a new flag, add it in
/* used to temporarily mark paths matched by pathspecs */
#define CE_MATCHED (1 << 26)
+#define CE_UPDATE_IN_BASE (1 << 27)
+#define CE_STRIP_NAME (1 << 28)
+
/*
* Extended on-disk flags
*/
#define cache_entry_size(len) (offsetof(struct cache_entry,name) + (len) + 1)
+#define SOMETHING_CHANGED (1 << 0) /* unclassified changes go here */
+#define CE_ENTRY_CHANGED (1 << 1)
+#define CE_ENTRY_REMOVED (1 << 2)
+#define CE_ENTRY_ADDED (1 << 3)
+#define RESOLVE_UNDO_CHANGED (1 << 4)
+#define CACHE_TREE_CHANGED (1 << 5)
+#define SPLIT_INDEX_ORDERED (1 << 6)
+
+struct split_index;
struct index_state {
struct cache_entry **cache;
unsigned int version;
unsigned int cache_nr, cache_alloc, cache_changed;
struct string_list *resolve_undo;
struct cache_tree *cache_tree;
+ struct split_index *split_index;
struct cache_time timestamp;
unsigned name_hash_initialized : 1,
initialized : 1;
#define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec))
#define is_cache_unborn() is_index_unborn(&the_index)
#define read_cache_unmerged() read_index_unmerged(&the_index)
-#define write_cache(newfd, cache, entries) write_index(&the_index, (newfd))
#define discard_cache() discard_index(&the_index)
#define unmerged_cache() unmerged_index(&the_index)
#define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen))
} while (0)
/* Initialize and use the cache information */
+struct lock_file;
extern int read_index(struct index_state *);
extern int read_index_preload(struct index_state *, const struct pathspec *pathspec);
+extern int do_read_index(struct index_state *istate, const char *path,
+ int must_exist); /* for testting only! */
extern int read_index_from(struct index_state *, const char *path);
extern int is_index_unborn(struct index_state *);
extern int read_index_unmerged(struct index_state *);
-extern int write_index(struct index_state *, int newfd);
+#define COMMIT_LOCK (1 << 0)
+#define CLOSE_LOCK (1 << 1)
+extern int write_locked_index(struct index_state *, struct lock_file *lock, unsigned flags);
extern int discard_index(struct index_state *);
extern int unmerged_index(const struct index_state *);
extern int verify_path(const char *path);
#define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */
#define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */
#define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */
+#define ADD_CACHE_KEEP_CACHE_TREE 32 /* Do not invalidate cache-tree */
extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option);
extern void rename_index_entry_at(struct index_state *, int pos, const char *new_name);
extern int remove_index_entry_at(struct index_state *, int pos);
extern void update_index_if_able(struct index_state *, struct lock_file *);
extern int hold_locked_index(struct lock_file *, int);
-extern int commit_locked_index(struct lock_file *);
extern void set_alternate_index_output(const char *);
extern int close_lock_file(struct lock_file *);
extern void rollback_lock_file(struct lock_file *);
extern int ident_cmp(const struct ident_split *, const struct ident_split *);
struct checkout {
+ struct index_state *istate;
const char *base_dir;
int base_dir_len;
unsigned force:1,
finish:
if (state->refresh_cache) {
+ assert(state->istate);
if (!fstat_done)
lstat(ce->name, &st);
fill_stat_cache_info(ce, &st);
+ ce->ce_flags |= CE_UPDATE_IN_BASE;
+ state->istate->cache_changed |= CE_ENTRY_CHANGED;
}
return 0;
}
return ewah_serialize_to(self, write_helper, (void *)(intptr_t)fd);
}
-int ewah_read_mmap(struct ewah_bitmap *self, void *map, size_t len)
+int ewah_read_mmap(struct ewah_bitmap *self, const void *map, size_t len)
{
- uint8_t *ptr = map;
+ const uint8_t *ptr = map;
size_t i;
self->bit_size = get_be32(ptr);
int ewah_serialize_native(struct ewah_bitmap *self, int fd);
int ewah_deserialize(struct ewah_bitmap *self, int fd);
-int ewah_read_mmap(struct ewah_bitmap *self, void *map, size_t len);
-int ewah_read_mmap_native(struct ewah_bitmap *self, void *map, size_t len);
+int ewah_read_mmap(struct ewah_bitmap *self, const void *map, size_t len);
uint32_t ewah_checksum(struct ewah_bitmap *self);
#include "sigchain.h"
static struct lock_file *lock_file_list;
-static const char *alternate_index_output;
static void remove_lock_file(void)
{
: 0);
}
-void set_alternate_index_output(const char *name)
-{
- alternate_index_output = name;
-}
-
-int commit_locked_index(struct lock_file *lk)
-{
- if (alternate_index_output) {
- if (lk->fd >= 0 && close_lock_file(lk))
- return -1;
- if (rename(lk->filename, alternate_index_output))
- return -1;
- lk->filename[0] = 0;
- return 0;
- }
- else
- return commit_lock_file(lk);
-}
-
void rollback_lock_file(struct lock_file *lk)
{
if (lk->filename[0]) {
active_cache_tree = cache_tree();
if (!cache_tree_fully_valid(active_cache_tree) &&
- cache_tree_update(active_cache_tree,
- (const struct cache_entry * const *)active_cache,
- active_nr, 0) < 0)
+ cache_tree_update(&the_index, 0) < 0)
die(_("error building trees"));
result = lookup_tree(active_cache_tree->sha1);
const unsigned char **base_list,
struct commit **result)
{
- int clean, index_fd;
+ int clean;
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
struct commit *head_commit = get_ref(head, o->branch1);
struct commit *next_commit = get_ref(merge, o->branch2);
}
}
- index_fd = hold_locked_index(lock, 1);
+ hold_locked_index(lock, 1);
clean = merge_recursive(o, head_commit, next_commit, ca,
result);
if (active_cache_changed &&
- (write_cache(index_fd, active_cache, active_nr) ||
- commit_locked_index(lock)))
+ write_locked_index(&the_index, lock, COMMIT_LOCK))
return error(_("Unable to write index."));
return clean ? 0 : 1;
struct tree *trees[MAX_UNPACK_TREES];
struct unpack_trees_options opts;
struct tree_desc t[MAX_UNPACK_TREES];
- int i, fd, nr_trees = 0;
+ int i, nr_trees = 0;
struct dir_struct dir;
struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file));
refresh_cache(REFRESH_QUIET);
- fd = hold_locked_index(lock_file, 1);
+ hold_locked_index(lock_file, 1);
memset(&trees, 0, sizeof(trees));
memset(&opts, 0, sizeof(opts));
}
if (unpack_trees(nr_trees, t, &opts))
return -1;
- if (write_cache(fd, active_cache, active_nr) ||
- commit_locked_index(lock_file))
+ if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
die(_("unable to write new index file"));
return 0;
}
#include "resolve-undo.h"
#include "strbuf.h"
#include "varint.h"
+#include "split-index.h"
+#include "sigchain.h"
static struct cache_entry *refresh_cache_entry(struct cache_entry *ce,
unsigned int options);
#define CACHE_EXT(s) ( (s[0]<<24)|(s[1]<<16)|(s[2]<<8)|(s[3]) )
#define CACHE_EXT_TREE 0x54524545 /* "TREE" */
#define CACHE_EXT_RESOLVE_UNDO 0x52455543 /* "REUC" */
+#define CACHE_EXT_LINK 0x6c696e6b /* "link" */
+
+/* changes that can be kept in $GIT_DIR/index (basically all extensions) */
+#define EXTMASK (RESOLVE_UNDO_CHANGED | CACHE_TREE_CHANGED | \
+ CE_ENTRY_ADDED | CE_ENTRY_REMOVED | CE_ENTRY_CHANGED | \
+ SPLIT_INDEX_ORDERED)
struct index_state the_index;
+static const char *alternate_index_output;
static void set_index_entry(struct index_state *istate, int nr, struct cache_entry *ce)
{
{
struct cache_entry *old = istate->cache[nr];
+ replace_index_entry_in_base(istate, old, ce);
remove_name_hash(istate, old);
free(old);
set_index_entry(istate, nr, ce);
- istate->cache_changed = 1;
+ ce->ce_flags |= CE_UPDATE_IN_BASE;
+ istate->cache_changed |= CE_ENTRY_CHANGED;
}
void rename_index_entry_at(struct index_state *istate, int nr, const char *new_name)
copy_cache_entry(new, old);
new->ce_flags &= ~CE_HASHED;
new->ce_namelen = namelen;
+ new->index = 0;
memcpy(new->name, new_name, namelen + 1);
- cache_tree_invalidate_path(istate->cache_tree, old->name);
+ cache_tree_invalidate_path(istate, old->name);
remove_index_entry_at(istate, nr);
add_index_entry(istate, new, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE);
}
record_resolve_undo(istate, ce);
remove_name_hash(istate, ce);
- free(ce);
- istate->cache_changed = 1;
+ save_or_free_index_entry(istate, ce);
+ istate->cache_changed |= CE_ENTRY_REMOVED;
istate->cache_nr--;
if (pos >= istate->cache_nr)
return 0;
for (i = j = 0; i < istate->cache_nr; i++) {
if (ce_array[i]->ce_flags & CE_REMOVE) {
remove_name_hash(istate, ce_array[i]);
- free(ce_array[i]);
+ save_or_free_index_entry(istate, ce_array[i]);
}
else
ce_array[j++] = ce_array[i];
}
- istate->cache_changed = 1;
+ if (j == istate->cache_nr)
+ return;
+ istate->cache_changed |= CE_ENTRY_REMOVED;
istate->cache_nr = j;
}
int pos = index_name_pos(istate, path, strlen(path));
if (pos < 0)
pos = -pos-1;
- cache_tree_invalidate_path(istate->cache_tree, path);
+ cache_tree_invalidate_path(istate, path);
while (pos < istate->cache_nr && !strcmp(istate->cache[pos]->name, path))
remove_index_entry_at(istate, pos);
return 0;
* So we use the CE_ADDED flag to verify that the alias was an old
* one before we accept it as
*/
-static struct cache_entry *create_alias_ce(struct cache_entry *ce, struct cache_entry *alias)
+static struct cache_entry *create_alias_ce(struct index_state *istate,
+ struct cache_entry *ce,
+ struct cache_entry *alias)
{
int len;
struct cache_entry *new;
new = xcalloc(1, cache_entry_size(len));
memcpy(new->name, alias->name, len);
copy_cache_entry(new, ce);
- free(ce);
+ save_or_free_index_entry(istate, ce);
return new;
}
set_object_name_for_intent_to_add_entry(ce);
if (ignore_case && alias && different_name(ce, alias))
- ce = create_alias_ce(ce, alias);
+ ce = create_alias_ce(istate, ce, alias);
ce->ce_flags |= CE_ADDED;
/* It was suspected to be racily clean, but it turns out to be Ok */
int skip_df_check = option & ADD_CACHE_SKIP_DFCHECK;
int new_only = option & ADD_CACHE_NEW_ONLY;
- cache_tree_invalidate_path(istate->cache_tree, ce->name);
+ if (!(option & ADD_CACHE_KEEP_CACHE_TREE))
+ cache_tree_invalidate_path(istate, ce->name);
pos = index_name_stage_pos(istate, ce->name, ce_namelen(ce), ce_stage(ce));
/* existing match? Just replace it. */
istate->cache + pos,
(istate->cache_nr - pos - 1) * sizeof(ce));
set_index_entry(istate, pos, ce);
- istate->cache_changed = 1;
+ istate->cache_changed |= CE_ENTRY_ADDED;
return 0;
}
!(ce->ce_flags & CE_VALID))
updated->ce_flags &= ~CE_VALID;
+ /* istate->cache_changed is updated in the caller */
return updated;
}
* means the index is not valid anymore.
*/
ce->ce_flags &= ~CE_VALID;
- istate->cache_changed = 1;
+ ce->ce_flags |= CE_UPDATE_IN_BASE;
+ istate->cache_changed |= CE_ENTRY_CHANGED;
}
if (quiet)
continue;
case CACHE_EXT_RESOLVE_UNDO:
istate->resolve_undo = resolve_undo_read(data, sz);
break;
+ case CACHE_EXT_LINK:
+ if (read_link_extension(istate, data, sz))
+ return -1;
+ break;
default:
if (*ext < 'A' || 'Z' < *ext)
return error("index uses %.4s extension, which we do not understand",
ce->ce_stat_data.sd_size = get_be32(&ondisk->size);
ce->ce_flags = flags & ~CE_NAMEMASK;
ce->ce_namelen = len;
+ ce->index = 0;
hashcpy(ce->sha1, ondisk->sha1);
memcpy(ce->name, name, len);
ce->name[len] = '\0';
}
/* remember to discard_cache() before reading a different cache! */
-int read_index_from(struct index_state *istate, const char *path)
+int do_read_index(struct index_state *istate, const char *path, int must_exist)
{
int fd, i;
struct stat st;
istate->timestamp.nsec = 0;
fd = open(path, O_RDONLY);
if (fd < 0) {
- if (errno == ENOENT)
+ if (!must_exist && errno == ENOENT)
return 0;
- die_errno("index file open failed");
+ die_errno("%s: index file open failed", path);
}
if (fstat(fd, &st))
if (verify_hdr(hdr, mmap_size) < 0)
goto unmap;
- hashcpy(istate->sha1, (unsigned char *)hdr + mmap_size - 20);
+ hashcpy(istate->sha1, (const unsigned char *)hdr + mmap_size - 20);
istate->version = ntohl(hdr->hdr_version);
istate->cache_nr = ntohl(hdr->hdr_entries);
istate->cache_alloc = alloc_nr(istate->cache_nr);
die("index file corrupt");
}
+int read_index_from(struct index_state *istate, const char *path)
+{
+ struct split_index *split_index;
+ int ret;
+
+ /* istate->initialized covers both .git/index and .git/sharedindex.xxx */
+ if (istate->initialized)
+ return istate->cache_nr;
+
+ ret = do_read_index(istate, path, 0);
+ split_index = istate->split_index;
+ if (!split_index)
+ return ret;
+
+ if (is_null_sha1(split_index->base_sha1))
+ return ret;
+
+ if (split_index->base)
+ discard_index(split_index->base);
+ else
+ split_index->base = xcalloc(1, sizeof(*split_index->base));
+ ret = do_read_index(split_index->base,
+ git_path("sharedindex.%s",
+ sha1_to_hex(split_index->base_sha1)), 1);
+ if (hashcmp(split_index->base_sha1, split_index->base->sha1))
+ die("broken index, expect %s in %s, got %s",
+ sha1_to_hex(split_index->base_sha1),
+ git_path("sharedindex.%s",
+ sha1_to_hex(split_index->base_sha1)),
+ sha1_to_hex(split_index->base->sha1));
+ merge_base_index(istate);
+ return ret;
+}
+
int is_index_unborn(struct index_state *istate)
{
return (!istate->cache_nr && !istate->timestamp.sec);
{
int i;
- for (i = 0; i < istate->cache_nr; i++)
+ for (i = 0; i < istate->cache_nr; i++) {
+ if (istate->cache[i]->index &&
+ istate->split_index &&
+ istate->split_index->base &&
+ istate->cache[i]->index <= istate->split_index->base->cache_nr &&
+ istate->cache[i] == istate->split_index->base->cache[istate->cache[i]->index - 1])
+ continue;
free(istate->cache[i]);
+ }
resolve_undo_clear_index(istate);
istate->cache_nr = 0;
istate->cache_changed = 0;
free(istate->cache);
istate->cache = NULL;
istate->cache_alloc = 0;
+ discard_split_index(istate);
return 0;
}
(ce_write(context, fd, &sz, 4) < 0)) ? -1 : 0;
}
-static int ce_flush(git_SHA_CTX *context, int fd)
+static int ce_flush(git_SHA_CTX *context, int fd, unsigned char *sha1)
{
unsigned int left = write_buffer_len;
/* Append the SHA1 signature at the end */
git_SHA1_Final(write_buffer + left, context);
+ hashcpy(sha1, write_buffer + left);
left += 20;
return (write_in_full(fd, write_buffer, left) != left) ? -1 : 0;
}
ondisk->size = htonl(ce->ce_stat_data.sd_size);
hashcpy(ondisk->sha1, ce->sha1);
- flags = ce->ce_flags;
+ flags = ce->ce_flags & ~CE_NAMEMASK;
flags |= (ce_namelen(ce) >= CE_NAMEMASK ? CE_NAMEMASK : ce_namelen(ce));
ondisk->flags = htons(flags);
if (ce->ce_flags & CE_EXTENDED) {
{
int size;
struct ondisk_cache_entry *ondisk;
+ int saved_namelen = saved_namelen; /* compiler workaround */
char *name;
int result;
+ if (ce->ce_flags & CE_STRIP_NAME) {
+ saved_namelen = ce_namelen(ce);
+ ce->ce_namelen = 0;
+ }
+
if (!previous_name) {
size = ondisk_ce_size(ce);
ondisk = xcalloc(1, size);
strbuf_splice(previous_name, common, to_remove,
ce->name + common, ce_namelen(ce) - common);
}
+ if (ce->ce_flags & CE_STRIP_NAME) {
+ ce->ce_namelen = saved_namelen;
+ ce->ce_flags &= ~CE_STRIP_NAME;
+ }
result = ce_write(c, fd, ondisk, size);
free(ondisk);
void update_index_if_able(struct index_state *istate, struct lock_file *lockfile)
{
if ((istate->cache_changed || has_racy_timestamp(istate)) &&
- verify_index(istate) && !write_index(istate, lockfile->fd))
- commit_locked_index(lockfile);
- else
+ verify_index(istate) &&
+ write_locked_index(istate, lockfile, COMMIT_LOCK))
rollback_lock_file(lockfile);
}
-int write_index(struct index_state *istate, int newfd)
+static int do_write_index(struct index_state *istate, int newfd,
+ int strip_extensions)
{
git_SHA_CTX c;
struct cache_header hdr;
}
}
- if (!istate->version)
+ if (!istate->version) {
istate->version = get_index_format_default();
+ if (getenv("GIT_TEST_SPLIT_INDEX"))
+ init_split_index(istate);
+ }
/* demote version 3 to version 2 when the latter suffices */
if (istate->version == 3 || istate->version == 2)
strbuf_release(&previous_name_buf);
/* Write extension data here */
- if (istate->cache_tree) {
+ if (!strip_extensions && istate->split_index) {
+ struct strbuf sb = STRBUF_INIT;
+
+ err = write_link_extension(&sb, istate) < 0 ||
+ write_index_ext_header(&c, newfd, CACHE_EXT_LINK,
+ sb.len) < 0 ||
+ ce_write(&c, newfd, sb.buf, sb.len) < 0;
+ strbuf_release(&sb);
+ if (err)
+ return -1;
+ }
+ if (!strip_extensions && istate->cache_tree) {
struct strbuf sb = STRBUF_INIT;
cache_tree_write(&sb, istate->cache_tree);
if (err)
return -1;
}
- if (istate->resolve_undo) {
+ if (!strip_extensions && istate->resolve_undo) {
struct strbuf sb = STRBUF_INIT;
resolve_undo_write(&sb, istate->resolve_undo);
return -1;
}
- if (ce_flush(&c, newfd) || fstat(newfd, &st))
+ if (ce_flush(&c, newfd, istate->sha1) || fstat(newfd, &st))
return -1;
istate->timestamp.sec = (unsigned int)st.st_mtime;
istate->timestamp.nsec = ST_MTIME_NSEC(st);
return 0;
}
+void set_alternate_index_output(const char *name)
+{
+ alternate_index_output = name;
+}
+
+static int commit_locked_index(struct lock_file *lk)
+{
+ if (alternate_index_output) {
+ if (lk->fd >= 0 && close_lock_file(lk))
+ return -1;
+ if (rename(lk->filename, alternate_index_output))
+ return -1;
+ lk->filename[0] = 0;
+ return 0;
+ } else {
+ return commit_lock_file(lk);
+ }
+}
+
+static int do_write_locked_index(struct index_state *istate, struct lock_file *lock,
+ unsigned flags)
+{
+ int ret = do_write_index(istate, lock->fd, 0);
+ if (ret)
+ return ret;
+ assert((flags & (COMMIT_LOCK | CLOSE_LOCK)) !=
+ (COMMIT_LOCK | CLOSE_LOCK));
+ if (flags & COMMIT_LOCK)
+ return commit_locked_index(lock);
+ else if (flags & CLOSE_LOCK)
+ return close_lock_file(lock);
+ else
+ return ret;
+}
+
+static int write_split_index(struct index_state *istate,
+ struct lock_file *lock,
+ unsigned flags)
+{
+ int ret;
+ prepare_to_write_split_index(istate);
+ ret = do_write_locked_index(istate, lock, flags);
+ finish_writing_split_index(istate);
+ return ret;
+}
+
+static char *temporary_sharedindex;
+
+static void remove_temporary_sharedindex(void)
+{
+ if (temporary_sharedindex) {
+ unlink_or_warn(temporary_sharedindex);
+ free(temporary_sharedindex);
+ temporary_sharedindex = NULL;
+ }
+}
+
+static void remove_temporary_sharedindex_on_signal(int signo)
+{
+ remove_temporary_sharedindex();
+ sigchain_pop(signo);
+ raise(signo);
+}
+
+static int write_shared_index(struct index_state *istate,
+ struct lock_file *lock, unsigned flags)
+{
+ struct split_index *si = istate->split_index;
+ static int installed_handler;
+ int fd, ret;
+
+ temporary_sharedindex = git_pathdup("sharedindex_XXXXXX");
+ fd = mkstemp(temporary_sharedindex);
+ if (fd < 0) {
+ free(temporary_sharedindex);
+ temporary_sharedindex = NULL;
+ hashclr(si->base_sha1);
+ return do_write_locked_index(istate, lock, flags);
+ }
+ if (!installed_handler) {
+ atexit(remove_temporary_sharedindex);
+ sigchain_push_common(remove_temporary_sharedindex_on_signal);
+ }
+ move_cache_to_base_index(istate);
+ ret = do_write_index(si->base, fd, 1);
+ close(fd);
+ if (ret) {
+ remove_temporary_sharedindex();
+ return ret;
+ }
+ ret = rename(temporary_sharedindex,
+ git_path("sharedindex.%s", sha1_to_hex(si->base->sha1)));
+ free(temporary_sharedindex);
+ temporary_sharedindex = NULL;
+ if (!ret)
+ hashcpy(si->base_sha1, si->base->sha1);
+ return ret;
+}
+
+int write_locked_index(struct index_state *istate, struct lock_file *lock,
+ unsigned flags)
+{
+ struct split_index *si = istate->split_index;
+
+ if (!si || alternate_index_output ||
+ (istate->cache_changed & ~EXTMASK)) {
+ if (si)
+ hashclr(si->base_sha1);
+ return do_write_locked_index(istate, lock, flags);
+ }
+
+ if (getenv("GIT_TEST_SPLIT_INDEX")) {
+ int v = si->base_sha1[0];
+ if ((v & 15) < 6)
+ istate->cache_changed |= SPLIT_INDEX_ORDERED;
+ }
+ if (istate->cache_changed & SPLIT_INDEX_ORDERED) {
+ int ret = write_shared_index(istate, lock, flags);
+ if (ret)
+ return ret;
+ }
+
+ return write_split_index(istate, lock, flags);
+}
+
/*
* Read the index file that is potentially unmerged into given
* index_state, dropping any unmerged entries. Returns true if
}
if (!status && active_cache_changed) {
- if (write_cache(fd, active_cache, active_nr) ||
- commit_locked_index(&index_lock))
+ if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK))
die("Unable to write new index file");
} else if (fd >= 0)
rollback_lock_file(&index_lock);
string_list_clear(resolve_undo, 1);
free(resolve_undo);
istate->resolve_undo = NULL;
- istate->cache_changed = 1;
+ istate->cache_changed |= RESOLVE_UNDO_CHANGED;
}
int unmerge_index_entry_at(struct index_state *istate, int pos)
{
struct merge_options o;
struct tree *result, *next_tree, *base_tree, *head_tree;
- int clean, index_fd;
+ int clean;
const char **xopt;
static struct lock_file index_lock;
- index_fd = hold_locked_index(&index_lock, 1);
+ hold_locked_index(&index_lock, 1);
read_cache();
next_tree, base_tree, &result);
if (active_cache_changed &&
- (write_cache(index_fd, active_cache, active_nr) ||
- commit_locked_index(&index_lock)))
+ write_locked_index(&the_index, &index_lock, COMMIT_LOCK))
/* TRANSLATORS: %s will be "revert" or "cherry-pick" */
die(_("%s: Unable to write new index file"), action_name(opts));
rollback_lock_file(&index_lock);
active_cache_tree = cache_tree();
if (!cache_tree_fully_valid(active_cache_tree))
- if (cache_tree_update(active_cache_tree,
- (const struct cache_entry * const *)active_cache,
- active_nr, 0))
+ if (cache_tree_update(&the_index, 0))
return error(_("Unable to update cache tree\n"));
return !hashcmp(active_cache_tree->sha1, head_commit->tree->object.sha1);
if (read_index_preload(&the_index, NULL) < 0)
die(_("git %s: failed to read the index"), action_name(opts));
refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL);
- if (the_index.cache_changed) {
- if (write_index(&the_index, index_fd) ||
- commit_locked_index(&index_lock))
+ if (the_index.cache_changed && index_fd >= 0) {
+ if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK))
die(_("git %s: failed to refresh the index"), action_name(opts));
}
rollback_lock_file(&index_lock);
--- /dev/null
+#include "cache.h"
+#include "split-index.h"
+#include "ewah/ewok.h"
+
+struct split_index *init_split_index(struct index_state *istate)
+{
+ if (!istate->split_index) {
+ istate->split_index = xcalloc(1, sizeof(*istate->split_index));
+ istate->split_index->refcount = 1;
+ }
+ return istate->split_index;
+}
+
+int read_link_extension(struct index_state *istate,
+ const void *data_, unsigned long sz)
+{
+ const unsigned char *data = data_;
+ struct split_index *si;
+ int ret;
+
+ if (sz < 20)
+ return error("corrupt link extension (too short)");
+ si = init_split_index(istate);
+ hashcpy(si->base_sha1, data);
+ data += 20;
+ sz -= 20;
+ if (!sz)
+ return 0;
+ si->delete_bitmap = ewah_new();
+ ret = ewah_read_mmap(si->delete_bitmap, data, sz);
+ if (ret < 0)
+ return error("corrupt delete bitmap in link extension");
+ data += ret;
+ sz -= ret;
+ si->replace_bitmap = ewah_new();
+ ret = ewah_read_mmap(si->replace_bitmap, data, sz);
+ if (ret < 0)
+ return error("corrupt replace bitmap in link extension");
+ if (ret != sz)
+ return error("garbage at the end of link extension");
+ return 0;
+}
+
+static int write_strbuf(void *user_data, const void *data, size_t len)
+{
+ struct strbuf *sb = user_data;
+ strbuf_add(sb, data, len);
+ return len;
+}
+
+int write_link_extension(struct strbuf *sb,
+ struct index_state *istate)
+{
+ struct split_index *si = istate->split_index;
+ strbuf_add(sb, si->base_sha1, 20);
+ if (!si->delete_bitmap && !si->replace_bitmap)
+ return 0;
+ ewah_serialize_to(si->delete_bitmap, write_strbuf, sb);
+ ewah_serialize_to(si->replace_bitmap, write_strbuf, sb);
+ return 0;
+}
+
+static void mark_base_index_entries(struct index_state *base)
+{
+ int i;
+ /*
+ * To keep track of the shared entries between
+ * istate->base->cache[] and istate->cache[], base entry
+ * position is stored in each base entry. All positions start
+ * from 1 instead of 0, which is resrved to say "this is a new
+ * entry".
+ */
+ for (i = 0; i < base->cache_nr; i++)
+ base->cache[i]->index = i + 1;
+}
+
+void move_cache_to_base_index(struct index_state *istate)
+{
+ struct split_index *si = istate->split_index;
+ int i;
+
+ /*
+ * do not delete old si->base, its index entries may be shared
+ * with istate->cache[]. Accept a bit of leaking here because
+ * this code is only used by short-lived update-index.
+ */
+ si->base = xcalloc(1, sizeof(*si->base));
+ si->base->version = istate->version;
+ /* zero timestamp disables racy test in ce_write_index() */
+ si->base->timestamp = istate->timestamp;
+ ALLOC_GROW(si->base->cache, istate->cache_nr, si->base->cache_alloc);
+ si->base->cache_nr = istate->cache_nr;
+ memcpy(si->base->cache, istate->cache,
+ sizeof(*istate->cache) * istate->cache_nr);
+ mark_base_index_entries(si->base);
+ for (i = 0; i < si->base->cache_nr; i++)
+ si->base->cache[i]->ce_flags &= ~CE_UPDATE_IN_BASE;
+}
+
+static void mark_entry_for_delete(size_t pos, void *data)
+{
+ struct index_state *istate = data;
+ if (pos >= istate->cache_nr)
+ die("position for delete %d exceeds base index size %d",
+ (int)pos, istate->cache_nr);
+ istate->cache[pos]->ce_flags |= CE_REMOVE;
+ istate->split_index->nr_deletions = 1;
+}
+
+static void replace_entry(size_t pos, void *data)
+{
+ struct index_state *istate = data;
+ struct split_index *si = istate->split_index;
+ struct cache_entry *dst, *src;
+
+ if (pos >= istate->cache_nr)
+ die("position for replacement %d exceeds base index size %d",
+ (int)pos, istate->cache_nr);
+ if (si->nr_replacements >= si->saved_cache_nr)
+ die("too many replacements (%d vs %d)",
+ si->nr_replacements, si->saved_cache_nr);
+ dst = istate->cache[pos];
+ if (dst->ce_flags & CE_REMOVE)
+ die("entry %d is marked as both replaced and deleted",
+ (int)pos);
+ src = si->saved_cache[si->nr_replacements];
+ if (ce_namelen(src))
+ die("corrupt link extension, entry %d should have "
+ "zero length name", (int)pos);
+ src->index = pos + 1;
+ src->ce_flags |= CE_UPDATE_IN_BASE;
+ src->ce_namelen = dst->ce_namelen;
+ copy_cache_entry(dst, src);
+ free(src);
+ si->nr_replacements++;
+}
+
+void merge_base_index(struct index_state *istate)
+{
+ struct split_index *si = istate->split_index;
+ unsigned int i;
+
+ mark_base_index_entries(si->base);
+
+ si->saved_cache = istate->cache;
+ si->saved_cache_nr = istate->cache_nr;
+ istate->cache_nr = si->base->cache_nr;
+ istate->cache = NULL;
+ istate->cache_alloc = 0;
+ ALLOC_GROW(istate->cache, istate->cache_nr, istate->cache_alloc);
+ memcpy(istate->cache, si->base->cache,
+ sizeof(*istate->cache) * istate->cache_nr);
+
+ si->nr_deletions = 0;
+ si->nr_replacements = 0;
+ ewah_each_bit(si->replace_bitmap, replace_entry, istate);
+ ewah_each_bit(si->delete_bitmap, mark_entry_for_delete, istate);
+ if (si->nr_deletions)
+ remove_marked_cache_entries(istate);
+
+ for (i = si->nr_replacements; i < si->saved_cache_nr; i++) {
+ if (!ce_namelen(si->saved_cache[i]))
+ die("corrupt link extension, entry %d should "
+ "have non-zero length name", i);
+ add_index_entry(istate, si->saved_cache[i],
+ ADD_CACHE_OK_TO_ADD |
+ ADD_CACHE_KEEP_CACHE_TREE |
+ /*
+ * we may have to replay what
+ * merge-recursive.c:update_stages()
+ * does, which has this flag on
+ */
+ ADD_CACHE_SKIP_DFCHECK);
+ si->saved_cache[i] = NULL;
+ }
+
+ ewah_free(si->delete_bitmap);
+ ewah_free(si->replace_bitmap);
+ free(si->saved_cache);
+ si->delete_bitmap = NULL;
+ si->replace_bitmap = NULL;
+ si->saved_cache = NULL;
+ si->saved_cache_nr = 0;
+}
+
+void prepare_to_write_split_index(struct index_state *istate)
+{
+ struct split_index *si = init_split_index(istate);
+ struct cache_entry **entries = NULL, *ce;
+ int i, nr_entries = 0, nr_alloc = 0;
+
+ si->delete_bitmap = ewah_new();
+ si->replace_bitmap = ewah_new();
+
+ if (si->base) {
+ /* Go through istate->cache[] and mark CE_MATCHED to
+ * entry with positive index. We'll go through
+ * base->cache[] later to delete all entries in base
+ * that are not marked eith either CE_MATCHED or
+ * CE_UPDATE_IN_BASE. If istate->cache[i] is a
+ * duplicate, deduplicate it.
+ */
+ for (i = 0; i < istate->cache_nr; i++) {
+ struct cache_entry *base;
+ /* namelen is checked separately */
+ const unsigned int ondisk_flags =
+ CE_STAGEMASK | CE_VALID | CE_EXTENDED_FLAGS;
+ unsigned int ce_flags, base_flags, ret;
+ ce = istate->cache[i];
+ if (!ce->index)
+ continue;
+ if (ce->index > si->base->cache_nr) {
+ ce->index = 0;
+ continue;
+ }
+ ce->ce_flags |= CE_MATCHED; /* or "shared" */
+ base = si->base->cache[ce->index - 1];
+ if (ce == base)
+ continue;
+ if (ce->ce_namelen != base->ce_namelen ||
+ strcmp(ce->name, base->name)) {
+ ce->index = 0;
+ continue;
+ }
+ ce_flags = ce->ce_flags;
+ base_flags = base->ce_flags;
+ /* only on-disk flags matter */
+ ce->ce_flags &= ondisk_flags;
+ base->ce_flags &= ondisk_flags;
+ ret = memcmp(&ce->ce_stat_data, &base->ce_stat_data,
+ offsetof(struct cache_entry, name) -
+ offsetof(struct cache_entry, ce_stat_data));
+ ce->ce_flags = ce_flags;
+ base->ce_flags = base_flags;
+ if (ret)
+ ce->ce_flags |= CE_UPDATE_IN_BASE;
+ free(base);
+ si->base->cache[ce->index - 1] = ce;
+ }
+ for (i = 0; i < si->base->cache_nr; i++) {
+ ce = si->base->cache[i];
+ if ((ce->ce_flags & CE_REMOVE) ||
+ !(ce->ce_flags & CE_MATCHED))
+ ewah_set(si->delete_bitmap, i);
+ else if (ce->ce_flags & CE_UPDATE_IN_BASE) {
+ ewah_set(si->replace_bitmap, i);
+ ce->ce_flags |= CE_STRIP_NAME;
+ ALLOC_GROW(entries, nr_entries+1, nr_alloc);
+ entries[nr_entries++] = ce;
+ }
+ }
+ }
+
+ for (i = 0; i < istate->cache_nr; i++) {
+ ce = istate->cache[i];
+ if ((!si->base || !ce->index) && !(ce->ce_flags & CE_REMOVE)) {
+ assert(!(ce->ce_flags & CE_STRIP_NAME));
+ ALLOC_GROW(entries, nr_entries+1, nr_alloc);
+ entries[nr_entries++] = ce;
+ }
+ ce->ce_flags &= ~CE_MATCHED;
+ }
+
+ /*
+ * take cache[] out temporarily, put entries[] in its place
+ * for writing
+ */
+ si->saved_cache = istate->cache;
+ si->saved_cache_nr = istate->cache_nr;
+ istate->cache = entries;
+ istate->cache_nr = nr_entries;
+}
+
+void finish_writing_split_index(struct index_state *istate)
+{
+ struct split_index *si = init_split_index(istate);
+
+ ewah_free(si->delete_bitmap);
+ ewah_free(si->replace_bitmap);
+ si->delete_bitmap = NULL;
+ si->replace_bitmap = NULL;
+ free(istate->cache);
+ istate->cache = si->saved_cache;
+ istate->cache_nr = si->saved_cache_nr;
+}
+
+void discard_split_index(struct index_state *istate)
+{
+ struct split_index *si = istate->split_index;
+ if (!si)
+ return;
+ istate->split_index = NULL;
+ si->refcount--;
+ if (si->refcount)
+ return;
+ if (si->base) {
+ discard_index(si->base);
+ free(si->base);
+ }
+ free(si);
+}
+
+void save_or_free_index_entry(struct index_state *istate, struct cache_entry *ce)
+{
+ if (ce->index &&
+ istate->split_index &&
+ istate->split_index->base &&
+ ce->index <= istate->split_index->base->cache_nr &&
+ ce == istate->split_index->base->cache[ce->index - 1])
+ ce->ce_flags |= CE_REMOVE;
+ else
+ free(ce);
+}
+
+void replace_index_entry_in_base(struct index_state *istate,
+ struct cache_entry *old,
+ struct cache_entry *new)
+{
+ if (old->index &&
+ istate->split_index &&
+ istate->split_index->base &&
+ old->index <= istate->split_index->base->cache_nr) {
+ new->index = old->index;
+ if (old != istate->split_index->base->cache[new->index - 1])
+ free(istate->split_index->base->cache[new->index - 1]);
+ istate->split_index->base->cache[new->index - 1] = new;
+ }
+}
--- /dev/null
+#ifndef SPLIT_INDEX_H
+#define SPLIT_INDEX_H
+
+struct index_state;
+struct strbuf;
+struct ewah_bitmap;
+
+struct split_index {
+ unsigned char base_sha1[20];
+ struct index_state *base;
+ struct ewah_bitmap *delete_bitmap;
+ struct ewah_bitmap *replace_bitmap;
+ struct cache_entry **saved_cache;
+ unsigned int saved_cache_nr;
+ unsigned int nr_deletions;
+ unsigned int nr_replacements;
+ int refcount;
+};
+
+struct split_index *init_split_index(struct index_state *istate);
+void save_or_free_index_entry(struct index_state *istate, struct cache_entry *ce);
+void replace_index_entry_in_base(struct index_state *istate,
+ struct cache_entry *old,
+ struct cache_entry *new);
+int read_link_extension(struct index_state *istate,
+ const void *data, unsigned long sz);
+int write_link_extension(struct strbuf *sb,
+ struct index_state *istate);
+void move_cache_to_base_index(struct index_state *istate);
+void merge_base_index(struct index_state *istate);
+void prepare_to_write_split_index(struct index_state *istate);
+void finish_writing_split_index(struct index_state *istate);
+void discard_split_index(struct index_state *istate);
+
+#endif
--- /dev/null
+#!/bin/sh
+
+test_description='split index mode tests'
+
+. ./test-lib.sh
+
+# We need total control of index splitting here
+sane_unset GIT_TEST_SPLIT_INDEX
+
+test_expect_success 'enable split index' '
+ git update-index --split-index &&
+ test-dump-split-index .git/index >actual &&
+ cat >expect <<EOF &&
+own 8299b0bcd1ac364e5f1d7768efb62fa2da79a339
+base 39d890139ee5356c7ef572216cebcd27aa41f9df
+replacements:
+deletions:
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'add one file' '
+ : >one &&
+ git update-index --add one &&
+ git ls-files --stage >ls-files.actual &&
+ cat >ls-files.expect <<EOF &&
+100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
+EOF
+ test_cmp ls-files.expect ls-files.actual &&
+
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ cat >expect <<EOF &&
+base 39d890139ee5356c7ef572216cebcd27aa41f9df
+100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
+replacements:
+deletions:
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'disable split index' '
+ git update-index --no-split-index &&
+ git ls-files --stage >ls-files.actual &&
+ cat >ls-files.expect <<EOF &&
+100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
+EOF
+ test_cmp ls-files.expect ls-files.actual &&
+
+ BASE=`test-dump-split-index .git/index | grep "^own" | sed "s/own/base/"` &&
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ cat >expect <<EOF &&
+not a split index
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'enable split index again, "one" now belongs to base index"' '
+ git update-index --split-index &&
+ git ls-files --stage >ls-files.actual &&
+ cat >ls-files.expect <<EOF &&
+100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
+EOF
+ test_cmp ls-files.expect ls-files.actual &&
+
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ cat >expect <<EOF &&
+$BASE
+replacements:
+deletions:
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'modify original file, base index untouched' '
+ echo modified >one &&
+ git update-index one &&
+ git ls-files --stage >ls-files.actual &&
+ cat >ls-files.expect <<EOF &&
+100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0 one
+EOF
+ test_cmp ls-files.expect ls-files.actual &&
+
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ q_to_tab >expect <<EOF &&
+$BASE
+100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
+replacements: 0
+deletions:
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'add another file, which stays index' '
+ : >two &&
+ git update-index --add two &&
+ git ls-files --stage >ls-files.actual &&
+ cat >ls-files.expect <<EOF &&
+100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0 one
+100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 two
+EOF
+ test_cmp ls-files.expect ls-files.actual &&
+
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ q_to_tab >expect <<EOF &&
+$BASE
+100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
+100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 two
+replacements: 0
+deletions:
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'remove file not in base index' '
+ git update-index --force-remove two &&
+ git ls-files --stage >ls-files.actual &&
+ cat >ls-files.expect <<EOF &&
+100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0 one
+EOF
+ test_cmp ls-files.expect ls-files.actual &&
+
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ q_to_tab >expect <<EOF &&
+$BASE
+100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
+replacements: 0
+deletions:
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'remove file in base index' '
+ git update-index --force-remove one &&
+ git ls-files --stage >ls-files.actual &&
+ cat >ls-files.expect <<EOF &&
+EOF
+ test_cmp ls-files.expect ls-files.actual &&
+
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ cat >expect <<EOF &&
+$BASE
+replacements:
+deletions: 0
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'add original file back' '
+ : >one &&
+ git update-index --add one &&
+ git ls-files --stage >ls-files.actual &&
+ cat >ls-files.expect <<EOF &&
+100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
+EOF
+ test_cmp ls-files.expect ls-files.actual &&
+
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ cat >expect <<EOF &&
+$BASE
+100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
+replacements:
+deletions: 0
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'add new file' '
+ : >two &&
+ git update-index --add two &&
+ git ls-files --stage >actual &&
+ cat >expect <<EOF &&
+100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
+100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 two
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'unify index, two files remain' '
+ git update-index --no-split-index &&
+ git ls-files --stage >ls-files.actual &&
+ cat >ls-files.expect <<EOF &&
+100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
+100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 two
+EOF
+ test_cmp ls-files.expect ls-files.actual
+
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ cat >expect <<EOF &&
+not a split index
+EOF
+ test_cmp expect actual
+'
+
+test_done
. ./test-lib.sh
+sane_unset GIT_TEST_SPLIT_INDEX
+
test_set_index_version 3
cat >expect.full <<EOF
int main(int ac, char **av)
{
+ struct index_state istate;
struct cache_tree *another = cache_tree();
if (read_cache() < 0)
die("unable to read index file");
- cache_tree_update(another,
- (const struct cache_entry * const *)active_cache,
- active_nr, WRITE_TREE_DRY_RUN);
+ istate = the_index;
+ istate.cache_tree = another;
+ cache_tree_update(&istate, WRITE_TREE_DRY_RUN);
return dump_cache_tree(active_cache_tree, another, "");
}
--- /dev/null
+#include "cache.h"
+#include "split-index.h"
+#include "ewah/ewok.h"
+
+static void show_bit(size_t pos, void *data)
+{
+ printf(" %d", (int)pos);
+}
+
+int main(int ac, char **av)
+{
+ struct split_index *si;
+ int i;
+
+ do_read_index(&the_index, av[1], 1);
+ printf("own %s\n", sha1_to_hex(the_index.sha1));
+ si = the_index.split_index;
+ if (!si) {
+ printf("not a split index\n");
+ return 0;
+ }
+ printf("base %s\n", sha1_to_hex(si->base_sha1));
+ for (i = 0; i < the_index.cache_nr; i++) {
+ struct cache_entry *ce = the_index.cache[i];
+ printf("%06o %s %d\t%s\n", ce->ce_mode,
+ sha1_to_hex(ce->sha1), ce_stage(ce), ce->name);
+ }
+ printf("replacements:");
+ ewah_each_bit(si->replace_bitmap, show_bit, NULL);
+ printf("\ndeletions:");
+ ewah_each_bit(si->delete_bitmap, show_bit, NULL);
+ printf("\n");
+ return 0;
+}
int main(int ac, char **av)
{
- int fd = hold_locked_index(&index_lock, 1);
+ hold_locked_index(&index_lock, 1);
if (read_cache() < 0)
die("unable to read index file");
active_cache_tree = NULL;
- if (write_cache(fd, active_cache, active_nr)
- || commit_lock_file(&index_lock))
+ if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK))
die("unable to write index file");
return 0;
}
#include "progress.h"
#include "refs.h"
#include "attr.h"
+#include "split-index.h"
/*
* Error messages expected by scripts out of plumbing commands such as
enum unpack_trees_error_types,
struct unpack_trees_options *o);
-static int apply_sparse_checkout(struct cache_entry *ce, struct unpack_trees_options *o)
+static int apply_sparse_checkout(struct index_state *istate,
+ struct cache_entry *ce,
+ struct unpack_trees_options *o)
{
int was_skip_worktree = ce_skip_worktree(ce);
ce->ce_flags |= CE_SKIP_WORKTREE;
else
ce->ce_flags &= ~CE_SKIP_WORKTREE;
+ if (was_skip_worktree != ce_skip_worktree(ce)) {
+ ce->ce_flags |= CE_UPDATE_IN_BASE;
+ istate->cache_changed |= CE_ENTRY_CHANGED;
+ }
/*
* if (!was_skip_worktree && !ce_skip_worktree()) {
state.force = 1;
state.quiet = 1;
state.refresh_cache = 1;
+ state.istate = &o->result;
memset(&el, 0, sizeof(el));
if (!core_apply_sparse_checkout || !o->update)
o->result.timestamp.sec = o->src_index->timestamp.sec;
o->result.timestamp.nsec = o->src_index->timestamp.nsec;
o->result.version = o->src_index->version;
+ o->result.split_index = o->src_index->split_index;
+ if (o->result.split_index)
+ o->result.split_index->refcount++;
+ hashcpy(o->result.sha1, o->src_index->sha1);
o->merge_size = len;
mark_all_ce_unused(o->src_index);
ret = -1;
}
- if (apply_sparse_checkout(ce, o)) {
+ if (apply_sparse_checkout(&o->result, ce, o)) {
if (!o->show_all_errors)
goto return_failed;
ret = -1;
struct unpack_trees_options *o)
{
if (ce)
- cache_tree_invalidate_path(o->src_index->cache_tree, ce->name);
+ cache_tree_invalidate_path(o->src_index, ce->name);
}
/*