crawlers and some backup systems).
See linkgit:git-update-index[1]. True by default.
+core.splitIndex::
+ If true, the split-index feature of the index will be used.
+ See linkgit:git-update-index[1]. False by default.
+
core.untrackedCache::
Determines what to do about the untracked cache feature of the
index. It will be kept, if this variable is unset or set to
The default set of branches for linkgit:git-show-branch[1].
See linkgit:git-show-branch[1].
+splitIndex.maxPercentChange::
+ When the split index feature is used, this specifies the
+ percent of entries the split index can contain compared to the
+ total number of entries in both the split index and the shared
+ index before a new shared index is written.
+ The value should be between 0 and 100. If the value is 0 then
+ a new shared index is always written, if it is 100 a new
+ shared index is never written.
+ By default the value is 20, so a new shared index is written
+ if the number of entries in the split index would be greater
+ than 20 percent of the total number of entries.
+ See linkgit:git-update-index[1].
+
+splitIndex.sharedIndexExpire::
+ When the split index feature is used, shared index files that
+ were not modified since the time this variable specifies will
+ be removed when a new shared index file is created. The value
+ "now" expires all entries immediately, and "never" suppresses
+ expiration altogether.
+ The default value is "2.weeks.ago".
+ Note that a shared index file is considered modified (for the
+ purpose of expiration) each time a new split-index file is
+ either created based on it or read from it.
+ See linkgit:git-update-index[1].
+
status.relativePaths::
By default, linkgit:git-status[1] shows paths relative to the
current directory. Setting this variable to `false` shows paths
--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 significant amount of time to read or write.
+ Enable or disable split index mode. 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.
++
+These options take effect whatever the value of the `core.splitIndex`
+configuration variable (see linkgit:git-config[1]). But a warning is
+emitted when the change goes against the configured value, as the
+configured value will take effect next time the index is read and this
+will remove the intended effect of the option.
--untracked-cache::
--no-untracked-cache::
different from assume-unchanged bit's. Skip-worktree also takes
precedence over assume-unchanged bit when both are set.
+Split index
+-----------
+
+This mode is designed for repositories with very large indexes, and
+aims at reducing the time it takes to repeatedly write these indexes.
+
+In this mode, the index is split into two files, $GIT_DIR/index and
+$GIT_DIR/sharedindex.<SHA-1>. Changes are accumulated in
+$GIT_DIR/index, the split index, while the shared index file contains
+all index entries and stays unchanged.
+
+All changes in the split index are pushed back to the shared index
+file when the number of entries in the split index reaches a level
+specified by the splitIndex.maxPercentChange config variable (see
+linkgit:git-config[1]).
+
+Each time a new shared index file is created, the old shared index
+files are deleted if their modification time is older than what is
+specified by the splitIndex.sharedIndexExpire config variable (see
+linkgit:git-config[1]).
+
+To avoid deleting a shared index file that is still used, its
+modification time is updated to the current time everytime a new split
+index based on the shared index file is either created or read from.
+
Untracked cache
---------------
string_list_append(&pack_garbage, path);
}
-static void git_config_date_string(const char *key, const char **output)
-{
- if (git_config_get_string_const(key, output))
- return;
- if (strcmp(*output, "now")) {
- unsigned long now = approxidate("now");
- if (approxidate(*output) >= now)
- git_die_config(key, _("Invalid %s: '%s'"), key, *output);
- }
-}
-
static void process_log_file(void)
{
struct stat st;
git_config_get_int("gc.auto", &gc_auto_threshold);
git_config_get_int("gc.autopacklimit", &gc_auto_pack_limit);
git_config_get_bool("gc.autodetach", &detach_auto);
- git_config_date_string("gc.pruneexpire", &prune_expire);
- git_config_date_string("gc.worktreepruneexpire", &prune_worktrees_expire);
- git_config_date_string("gc.logexpiry", &gc_log_expire);
+ git_config_get_expiry("gc.pruneexpire", &prune_expire);
+ git_config_get_expiry("gc.worktreepruneexpire", &prune_worktrees_expire);
+ git_config_get_expiry("gc.logexpiry", &gc_log_expire);
git_config(git_default_config, NULL);
}
}
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 (git_config_get_split_index() == 0)
+ warning(_("core.splitIndex is set to false; "
+ "remove or change it, if you really want to "
+ "enable split index"));
+ if (the_index.split_index)
+ the_index.cache_changed |= SPLIT_INDEX_ORDERED;
+ else
+ add_split_index(&the_index);
+ } else if (!split_index) {
+ if (git_config_get_split_index() == 1)
+ warning(_("core.splitIndex is set to true; "
+ "remove or change it, if you really want to "
+ "disable split index"));
+ remove_split_index(&the_index);
}
switch (untracked_cache) {
extern void assert_sha1_type(const unsigned char *sha1, enum object_type expect);
+/* Helper to check and "touch" a file */
+extern int check_and_freshen_file(const char *fn, int freshen);
+
extern const signed char hexval_table[256];
static inline unsigned int hexval(unsigned char c)
{
extern int git_config_get_maybe_bool(const char *key, int *dest);
extern int git_config_get_pathname(const char *key, const char **dest);
extern int git_config_get_untracked_cache(void);
+extern int git_config_get_split_index(void);
+extern int git_config_get_max_percent_split_change(void);
+
+/* This dies if the configured or default date is in the future */
+extern int git_config_get_expiry(const char *key, const char **output);
/*
* This is a hack for test programs like test-dump-untracked-cache to
return ret;
}
+int git_config_get_expiry(const char *key, const char **output)
+{
+ int ret = git_config_get_string_const(key, output);
+ if (ret)
+ return ret;
+ if (strcmp(*output, "now")) {
+ unsigned long now = approxidate("now");
+ if (approxidate(*output) >= now)
+ git_die_config(key, _("Invalid %s: '%s'"), key, *output);
+ }
+ return ret;
+}
+
int git_config_get_untracked_cache(void)
{
int val = -1;
if (!strcasecmp(v, "keep"))
return -1;
- error("unknown core.untrackedCache value '%s'; "
- "using 'keep' default value", v);
+ error(_("unknown core.untrackedCache value '%s'; "
+ "using 'keep' default value"), v);
return -1;
}
return -1; /* default value */
}
+int git_config_get_split_index(void)
+{
+ int val;
+
+ if (!git_config_get_maybe_bool("core.splitindex", &val))
+ return val;
+
+ return -1; /* default value */
+}
+
+int git_config_get_max_percent_split_change(void)
+{
+ int val = -1;
+
+ if (!git_config_get_int("splitindex.maxpercentchange", &val)) {
+ if (0 <= val && val <= 100)
+ return val;
+
+ return error(_("splitIndex.maxPercentChange value '%d' "
+ "should be between 0 and 100"), val);
+ }
+
+ return -1; /* default value */
+}
+
NORETURN
void git_die_config_linenr(const char *key, const char *filename, int linenr)
{
}
}
+static void tweak_split_index(struct index_state *istate)
+{
+ switch (git_config_get_split_index()) {
+ case -1: /* unset: do nothing */
+ break;
+ case 0: /* false */
+ remove_split_index(istate);
+ break;
+ case 1: /* true */
+ add_split_index(istate);
+ break;
+ default: /* unknown value: do nothing */
+ break;
+ }
+}
+
static void post_read_index_from(struct index_state *istate)
{
check_ce_order(istate);
tweak_untracked_cache(istate);
+ tweak_split_index(istate);
}
/* remember to discard_cache() before reading a different cache! */
die("index file corrupt");
}
+/*
+ * Signal that the shared index is used by updating its mtime.
+ *
+ * This way, shared index can be removed if they have not been used
+ * for some time.
+ */
+static void freshen_shared_index(char *base_sha1_hex, int warn)
+{
+ const char *shared_index = git_path("sharedindex.%s", base_sha1_hex);
+ if (!check_and_freshen_file(shared_index, 1) && warn)
+ warning("could not freshen shared index '%s'", shared_index);
+}
+
int read_index_from(struct index_state *istate, const char *path)
{
struct split_index *split_index;
int ret;
+ char *base_sha1_hex;
+ const char *base_path;
/* istate->initialized covers both .git/index and .git/sharedindex.xxx */
if (istate->initialized)
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);
+
+ base_sha1_hex = sha1_to_hex(split_index->base_sha1);
+ base_path = git_path("sharedindex.%s", base_sha1_hex);
+ ret = do_read_index(split_index->base, base_path, 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)),
+ base_sha1_hex, base_path,
sha1_to_hex(split_index->base->sha1));
+
+ freshen_shared_index(base_sha1_hex, 0);
merge_base_index(istate);
post_read_index_from(istate);
return ret;
return ret;
}
+static const char *shared_index_expire = "2.weeks.ago";
+
+static unsigned long get_shared_index_expire_date(void)
+{
+ static unsigned long shared_index_expire_date;
+ static int shared_index_expire_date_prepared;
+
+ if (!shared_index_expire_date_prepared) {
+ git_config_get_expiry("splitindex.sharedindexexpire",
+ &shared_index_expire);
+ shared_index_expire_date = approxidate(shared_index_expire);
+ shared_index_expire_date_prepared = 1;
+ }
+
+ return shared_index_expire_date;
+}
+
+static int should_delete_shared_index(const char *shared_index_path)
+{
+ struct stat st;
+ unsigned long expiration;
+
+ /* Check timestamp */
+ expiration = get_shared_index_expire_date();
+ if (!expiration)
+ return 0;
+ if (stat(shared_index_path, &st))
+ return error_errno(_("could not stat '%s"), shared_index_path);
+ if (st.st_mtime > expiration)
+ return 0;
+
+ return 1;
+}
+
+static int clean_shared_index_files(const char *current_hex)
+{
+ struct dirent *de;
+ DIR *dir = opendir(get_git_dir());
+
+ if (!dir)
+ return error_errno(_("unable to open git dir: %s"), get_git_dir());
+
+ while ((de = readdir(dir)) != NULL) {
+ const char *sha1_hex;
+ const char *shared_index_path;
+ if (!skip_prefix(de->d_name, "sharedindex.", &sha1_hex))
+ continue;
+ if (!strcmp(sha1_hex, current_hex))
+ continue;
+ shared_index_path = git_path("%s", de->d_name);
+ if (should_delete_shared_index(shared_index_path) > 0 &&
+ unlink(shared_index_path))
+ warning_errno(_("unable to unlink: %s"), shared_index_path);
+ }
+ closedir(dir);
+
+ return 0;
+}
+
static struct tempfile temporary_sharedindex;
static int write_shared_index(struct index_state *istate,
}
ret = rename_tempfile(&temporary_sharedindex,
git_path("sharedindex.%s", sha1_to_hex(si->base->sha1)));
- if (!ret)
+ if (!ret) {
hashcpy(si->base_sha1, si->base->sha1);
+ clean_shared_index_files(sha1_to_hex(si->base->sha1));
+ }
+
return ret;
}
+static const int default_max_percent_split_change = 20;
+
+static int too_many_not_shared_entries(struct index_state *istate)
+{
+ int i, not_shared = 0;
+ int max_split = git_config_get_max_percent_split_change();
+
+ switch (max_split) {
+ case -1:
+ /* not or badly configured: use the default value */
+ max_split = default_max_percent_split_change;
+ break;
+ case 0:
+ return 1; /* 0% means always write a new shared index */
+ case 100:
+ return 0; /* 100% means never write a new shared index */
+ default:
+ break; /* just use the configured value */
+ }
+
+ /* Count not shared entries */
+ for (i = 0; i < istate->cache_nr; i++) {
+ struct cache_entry *ce = istate->cache[i];
+ if (!ce->index)
+ not_shared++;
+ }
+
+ return (int64_t)istate->cache_nr * max_split < (int64_t)not_shared * 100;
+}
+
int write_locked_index(struct index_state *istate, struct lock_file *lock,
unsigned flags)
{
+ int new_shared_index, ret;
struct split_index *si = istate->split_index;
if (!si || alternate_index_output ||
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 (too_many_not_shared_entries(istate))
+ istate->cache_changed |= SPLIT_INDEX_ORDERED;
+
+ new_shared_index = istate->cache_changed & SPLIT_INDEX_ORDERED;
+
+ if (new_shared_index) {
+ ret = write_shared_index(istate, lock, flags);
if (ret)
return ret;
}
- return write_split_index(istate, lock, flags);
+ ret = write_split_index(istate, lock, flags);
+
+ /* Freshen the shared index only if the split-index was written */
+ if (!ret && !new_shared_index)
+ freshen_shared_index(sha1_to_hex(si->base_sha1), 1);
+
+ return ret;
}
/*
* either does not exist on disk, or has a stale mtime and may be subject to
* pruning).
*/
-static int check_and_freshen_file(const char *fn, int freshen)
+int check_and_freshen_file(const char *fn, int freshen)
{
if (access(fn, F_OK))
return 0;
istate->split_index->base->cache[new->index - 1] = new;
}
}
+
+void add_split_index(struct index_state *istate)
+{
+ if (!istate->split_index) {
+ init_split_index(istate);
+ istate->cache_changed |= SPLIT_INDEX_ORDERED;
+ }
+}
+
+void remove_split_index(struct index_state *istate)
+{
+ if (istate->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.
+ */
+ istate->split_index = NULL;
+ istate->cache_changed |= SOMETHING_CHANGED;
+ }
+}
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);
+void add_split_index(struct index_state *istate);
+void remove_split_index(struct index_state *istate);
#endif
sane_unset GIT_TEST_SPLIT_INDEX
test_expect_success 'enable split index' '
+ git config splitIndex.maxPercentChange 100 &&
git update-index --split-index &&
test-dump-split-index .git/index >actual &&
indexversion=$(test-index-version <.git/index) &&
own=8299b0bcd1ac364e5f1d7768efb62fa2da79a339
base=39d890139ee5356c7ef572216cebcd27aa41f9df
fi &&
- cat >expect <<EOF &&
-own $own
-base $base
-replacements:
-deletions:
-EOF
+ cat >expect <<-EOF &&
+ own $own
+ base $base
+ replacements:
+ deletions:
+ EOF
test_cmp expect actual
'
: >one &&
git update-index --add one &&
git ls-files --stage >ls-files.actual &&
- cat >ls-files.expect <<EOF &&
-100644 $EMPTY_BLOB 0 one
-EOF
+ cat >ls-files.expect <<-EOF &&
+ 100644 $EMPTY_BLOB 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 $base
-100644 $EMPTY_BLOB 0 one
-replacements:
-deletions:
-EOF
+ cat >expect <<-EOF &&
+ base $base
+ 100644 $EMPTY_BLOB 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 $EMPTY_BLOB 0 one
-EOF
+ cat >ls-files.expect <<-EOF &&
+ 100644 $EMPTY_BLOB 0 one
+ EOF
test_cmp ls-files.expect ls-files.actual &&
BASE=$(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
+ 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 $EMPTY_BLOB 0 one
-EOF
+ cat >ls-files.expect <<-EOF &&
+ 100644 $EMPTY_BLOB 0 one
+ EOF
test_cmp ls-files.expect ls-files.actual &&
test-dump-split-index .git/index | sed "/^own/d" >actual &&
- cat >expect <<EOF &&
-$BASE
-replacements:
-deletions:
-EOF
+ cat >expect <<-EOF &&
+ $BASE
+ replacements:
+ deletions:
+ EOF
test_cmp expect actual
'
echo modified >one &&
git update-index one &&
git ls-files --stage >ls-files.actual &&
- cat >ls-files.expect <<EOF &&
-100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0 one
-EOF
+ cat >ls-files.expect <<-EOF &&
+ 100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0 one
+ EOF
test_cmp ls-files.expect ls-files.actual &&
test-dump-split-index .git/index | sed "/^own/d" >actual &&
- q_to_tab >expect <<EOF &&
-$BASE
-100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
-replacements: 0
-deletions:
-EOF
+ q_to_tab >expect <<-EOF &&
+ $BASE
+ 100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
+ replacements: 0
+ deletions:
+ EOF
test_cmp expect actual
'
: >two &&
git update-index --add two &&
git ls-files --stage >ls-files.actual &&
- cat >ls-files.expect <<EOF &&
-100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0 one
-100644 $EMPTY_BLOB 0 two
-EOF
+ cat >ls-files.expect <<-EOF &&
+ 100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0 one
+ 100644 $EMPTY_BLOB 0 two
+ EOF
test_cmp ls-files.expect ls-files.actual &&
test-dump-split-index .git/index | sed "/^own/d" >actual &&
- q_to_tab >expect <<EOF &&
-$BASE
-100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
-100644 $EMPTY_BLOB 0 two
-replacements: 0
-deletions:
-EOF
+ q_to_tab >expect <<-EOF &&
+ $BASE
+ 100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
+ 100644 $EMPTY_BLOB 0 two
+ replacements: 0
+ deletions:
+ EOF
test_cmp expect actual
'
test_expect_success 'remove file not in base index' '
git update-index --force-remove two &&
git ls-files --stage >ls-files.actual &&
- cat >ls-files.expect <<EOF &&
-100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0 one
-EOF
+ cat >ls-files.expect <<-EOF &&
+ 100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0 one
+ EOF
test_cmp ls-files.expect ls-files.actual &&
test-dump-split-index .git/index | sed "/^own/d" >actual &&
- q_to_tab >expect <<EOF &&
-$BASE
-100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
-replacements: 0
-deletions:
-EOF
+ q_to_tab >expect <<-EOF &&
+ $BASE
+ 100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
+ replacements: 0
+ deletions:
+ EOF
test_cmp expect actual
'
test_expect_success 'remove file in base index' '
git update-index --force-remove one &&
git ls-files --stage >ls-files.actual &&
- cat >ls-files.expect <<EOF &&
-EOF
+ cat >ls-files.expect <<-EOF &&
+ EOF
test_cmp ls-files.expect ls-files.actual &&
test-dump-split-index .git/index | sed "/^own/d" >actual &&
- cat >expect <<EOF &&
-$BASE
-replacements:
-deletions: 0
-EOF
+ cat >expect <<-EOF &&
+ $BASE
+ replacements:
+ deletions: 0
+ EOF
test_cmp expect actual
'
: >one &&
git update-index --add one &&
git ls-files --stage >ls-files.actual &&
- cat >ls-files.expect <<EOF &&
-100644 $EMPTY_BLOB 0 one
-EOF
+ cat >ls-files.expect <<-EOF &&
+ 100644 $EMPTY_BLOB 0 one
+ EOF
test_cmp ls-files.expect ls-files.actual &&
test-dump-split-index .git/index | sed "/^own/d" >actual &&
- cat >expect <<EOF &&
-$BASE
-100644 $EMPTY_BLOB 0 one
-replacements:
-deletions: 0
-EOF
+ cat >expect <<-EOF &&
+ $BASE
+ 100644 $EMPTY_BLOB 0 one
+ replacements:
+ deletions: 0
+ EOF
test_cmp expect actual
'
: >two &&
git update-index --add two &&
git ls-files --stage >actual &&
- cat >expect <<EOF &&
-100644 $EMPTY_BLOB 0 one
-100644 $EMPTY_BLOB 0 two
-EOF
+ cat >expect <<-EOF &&
+ 100644 $EMPTY_BLOB 0 one
+ 100644 $EMPTY_BLOB 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 $EMPTY_BLOB 0 one
-100644 $EMPTY_BLOB 0 two
-EOF
+ cat >ls-files.expect <<-EOF &&
+ 100644 $EMPTY_BLOB 0 one
+ 100644 $EMPTY_BLOB 0 two
+ EOF
test_cmp ls-files.expect ls-files.actual &&
test-dump-split-index .git/index | sed "/^own/d" >actual &&
- cat >expect <<EOF &&
-not a split index
-EOF
+ cat >expect <<-EOF &&
+ not a split index
+ EOF
test_cmp expect actual
'
)
'
+test_expect_success 'set core.splitIndex config variable to true' '
+ git config core.splitIndex true &&
+ : >three &&
+ git update-index --add three &&
+ git ls-files --stage >ls-files.actual &&
+ cat >ls-files.expect <<-EOF &&
+ 100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
+ 100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 three
+ 100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 two
+ EOF
+ test_cmp ls-files.expect ls-files.actual &&
+ BASE=$(test-dump-split-index .git/index | grep "^base") &&
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ cat >expect <<-EOF &&
+ $BASE
+ replacements:
+ deletions:
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'set core.splitIndex config variable to false' '
+ git config core.splitIndex false &&
+ git update-index --force-remove three &&
+ git ls-files --stage >ls-files.actual &&
+ cat >ls-files.expect <<-EOF &&
+ 100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
+ 100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 two
+ EOF
+ test_cmp ls-files.expect ls-files.actual &&
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ cat >expect <<-EOF &&
+ not a split index
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'set core.splitIndex config variable to true' '
+ git config core.splitIndex true &&
+ : >three &&
+ git update-index --add three &&
+ BASE=$(test-dump-split-index .git/index | grep "^base") &&
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ cat >expect <<-EOF &&
+ $BASE
+ replacements:
+ deletions:
+ EOF
+ test_cmp expect actual &&
+ : >four &&
+ git update-index --add four &&
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ cat >expect <<-EOF &&
+ $BASE
+ 100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 four
+ replacements:
+ deletions:
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'check behavior with splitIndex.maxPercentChange unset' '
+ git config --unset splitIndex.maxPercentChange &&
+ : >five &&
+ git update-index --add five &&
+ BASE=$(test-dump-split-index .git/index | grep "^base") &&
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ cat >expect <<-EOF &&
+ $BASE
+ replacements:
+ deletions:
+ EOF
+ test_cmp expect actual &&
+ : >six &&
+ git update-index --add six &&
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ cat >expect <<-EOF &&
+ $BASE
+ 100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 six
+ replacements:
+ deletions:
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'check splitIndex.maxPercentChange set to 0' '
+ git config splitIndex.maxPercentChange 0 &&
+ : >seven &&
+ git update-index --add seven &&
+ BASE=$(test-dump-split-index .git/index | grep "^base") &&
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ cat >expect <<-EOF &&
+ $BASE
+ replacements:
+ deletions:
+ EOF
+ test_cmp expect actual &&
+ : >eight &&
+ git update-index --add eight &&
+ BASE=$(test-dump-split-index .git/index | grep "^base") &&
+ test-dump-split-index .git/index | sed "/^own/d" >actual &&
+ cat >expect <<-EOF &&
+ $BASE
+ replacements:
+ deletions:
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'shared index files expire after 2 weeks by default' '
+ : >ten &&
+ git update-index --add ten &&
+ test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
+ just_under_2_weeks_ago=$((5-14*86400)) &&
+ test-chmtime =$just_under_2_weeks_ago .git/sharedindex.* &&
+ : >eleven &&
+ git update-index --add eleven &&
+ test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
+ just_over_2_weeks_ago=$((-1-14*86400)) &&
+ test-chmtime =$just_over_2_weeks_ago .git/sharedindex.* &&
+ : >twelve &&
+ git update-index --add twelve &&
+ test $(ls .git/sharedindex.* | wc -l) -le 2
+'
+
+test_expect_success 'check splitIndex.sharedIndexExpire set to 16 days' '
+ git config splitIndex.sharedIndexExpire "16.days.ago" &&
+ test-chmtime =$just_over_2_weeks_ago .git/sharedindex.* &&
+ : >thirteen &&
+ git update-index --add thirteen &&
+ test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
+ just_over_16_days_ago=$((-1-16*86400)) &&
+ test-chmtime =$just_over_16_days_ago .git/sharedindex.* &&
+ : >fourteen &&
+ git update-index --add fourteen &&
+ test $(ls .git/sharedindex.* | wc -l) -le 2
+'
+
+test_expect_success 'check splitIndex.sharedIndexExpire set to "never" and "now"' '
+ git config splitIndex.sharedIndexExpire never &&
+ just_10_years_ago=$((-365*10*86400)) &&
+ test-chmtime =$just_10_years_ago .git/sharedindex.* &&
+ : >fifteen &&
+ git update-index --add fifteen &&
+ test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
+ git config splitIndex.sharedIndexExpire now &&
+ just_1_second_ago=-1 &&
+ test-chmtime =$just_1_second_ago .git/sharedindex.* &&
+ : >sixteen &&
+ git update-index --add sixteen &&
+ test $(ls .git/sharedindex.* | wc -l) -le 2
+'
+
test_done