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authorJunio C Hamano <gitster@pobox.com>2009-09-14 02:22:00 -0700
committerJunio C Hamano <gitster@pobox.com>2010-01-07 15:00:14 -0800
commitba655da537a999670c7b21e0446e774a1f9733ea (patch)
treeccefcf54ec019795f4a6fd0a3372294f2a9041eb /builtin-read-tree.c
parent730f72840cc50c523fe4cdd796ea2d2fc4571a28 (diff)
downloadgit-ba655da537a999670c7b21e0446e774a1f9733ea.tar.gz
read-tree --debug-unpack
A debugging patch. Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin-read-tree.c')
-rw-r--r--builtin-read-tree.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/builtin-read-tree.c b/builtin-read-tree.c
index 2a3a32cbfe..0c1f40d10d 100644
--- a/builtin-read-tree.c
+++ b/builtin-read-tree.c
@@ -64,6 +64,34 @@ 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,
+ struct unpack_trees_options *o)
+{
+ printf("%s ", label);
+ if (!ce)
+ printf("(missing)\n");
+ else if (ce == o->df_conflict_entry)
+ printf("(conflict)\n");
+ else
+ printf("%06o #%d %s %.8s\n",
+ ce->ce_mode, ce_stage(ce), ce->name,
+ sha1_to_hex(ce->sha1));
+}
+
+static int debug_merge(struct cache_entry **stages, struct unpack_trees_options *o)
+{
+ int i;
+
+ printf("* %d-way merge\n", o->merge_size);
+ debug_stage("index", stages[0], o);
+ for (i = 1; i <= o->merge_size; i++) {
+ char buf[24];
+ sprintf(buf, "ent#%d", i);
+ debug_stage(buf, stages[i], o);
+ }
+ return 0;
+}
+
static struct lock_file lock_file;
int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
@@ -98,6 +126,8 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
PARSE_OPT_NONEG, exclude_per_directory_cb },
OPT_SET_INT('i', NULL, &opts.index_only,
"don't check the working tree after merging", 1),
+ OPT_SET_INT(0, "debug-unpack", &opts.debug_unpack,
+ "debug unpack-trees", 1),
OPT_END()
};
@@ -165,6 +195,9 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
opts.head_idx = 1;
}
+ if (opts.debug_unpack)
+ opts.fn = debug_merge;
+
cache_tree_free(&active_cache_tree);
for (i = 0; i < nr_trees; i++) {
struct tree *tree = trees[i];
@@ -174,6 +207,9 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
if (unpack_trees(nr_trees, t, &opts))
return 128;
+ if (opts.debug_unpack)
+ return 0; /* do not write the index out */
+
/*
* When reading only one tree (either the most basic form,
* "-m ent" or "--reset ent" form), we can obtain a fully