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-rw-r--r--builtin/read-tree.c26
1 files changed, 18 insertions, 8 deletions
diff --git a/builtin/read-tree.c b/builtin/read-tree.c
index 70dc100..2379e11 100644
--- a/builtin/read-tree.c
+++ b/builtin/read-tree.c
@@ -5,6 +5,7 @@
*/
#include "cache.h"
+#include "lockfile.h"
#include "object.h"
#include "tree.h"
#include "tree-walk.h"
@@ -66,7 +67,7 @@ static int exclude_per_directory_cb(const struct option *opt, const char *arg,
return 0;
}
-static void debug_stage(const char *label, struct cache_entry *ce,
+static void debug_stage(const char *label, const struct cache_entry *ce,
struct unpack_trees_options *o)
{
printf("%s ", label);
@@ -80,7 +81,8 @@ static void debug_stage(const char *label, struct cache_entry *ce,
sha1_to_hex(ce->sha1));
}
-static int debug_merge(struct cache_entry **stages, struct unpack_trees_options *o)
+static int debug_merge(const struct cache_entry * const *stages,
+ struct unpack_trees_options *o)
{
int i;
@@ -98,7 +100,7 @@ static struct lock_file lock_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;
@@ -148,12 +150,21 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
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");
@@ -177,7 +188,7 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
if (1 < opts.index_only + opts.update)
die("-u and -i at the same time makes no sense");
- if ((opts.update||opts.index_only) && !opts.merge)
+ if ((opts.update || opts.index_only) && !opts.merge)
die("%s is meaningless without -m, --reset, or --prefix",
opts.update ? "-u" : "-i");
if ((opts.dir && !opts.update))
@@ -230,10 +241,9 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
* 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;
}