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-rw-r--r--merge-recursive.c653
1 files changed, 392 insertions, 261 deletions
diff --git a/merge-recursive.c b/merge-recursive.c
index ec60715..11869ad 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -4,30 +4,40 @@
* The thieves were Alex Riesen and Johannes Schindelin, in June/July 2006
*/
#include "cache.h"
-#include "config.h"
+#include "merge-recursive.h"
+
#include "advice.h"
-#include "lockfile.h"
-#include "cache-tree.h"
-#include "object-store.h"
-#include "repository.h"
-#include "commit.h"
+#include "alloc.h"
+#include "attr.h"
#include "blob.h"
#include "builtin.h"
-#include "tree-walk.h"
+#include "cache-tree.h"
+#include "commit.h"
+#include "commit-reach.h"
+#include "config.h"
#include "diff.h"
#include "diffcore.h"
+#include "dir.h"
+#include "ll-merge.h"
+#include "lockfile.h"
+#include "object-store.h"
+#include "repository.h"
+#include "revision.h"
+#include "string-list.h"
+#include "submodule.h"
#include "tag.h"
-#include "alloc.h"
+#include "tree-walk.h"
#include "unpack-trees.h"
-#include "string-list.h"
#include "xdiff-interface.h"
-#include "ll-merge.h"
-#include "attr.h"
-#include "merge-recursive.h"
-#include "dir.h"
-#include "submodule.h"
-#include "revision.h"
-#include "commit-reach.h"
+
+struct merge_options_internal {
+ int call_depth;
+ int needed_rename_limit;
+ struct hashmap current_file_dir_set;
+ struct string_list df_conflict_file_set;
+ struct unpack_trees_options unpack_opts;
+ struct index_state orig_index;
+};
struct path_hashmap_entry {
struct hashmap_entry e;
@@ -35,14 +45,16 @@ struct path_hashmap_entry {
};
static int path_hashmap_cmp(const void *cmp_data,
- const void *entry,
- const void *entry_or_key,
+ const struct hashmap_entry *eptr,
+ const struct hashmap_entry *entry_or_key,
const void *keydata)
{
- const struct path_hashmap_entry *a = entry;
- const struct path_hashmap_entry *b = entry_or_key;
+ const struct path_hashmap_entry *a, *b;
const char *key = keydata;
+ a = container_of(eptr, const struct path_hashmap_entry, e);
+ b = container_of(entry_or_key, const struct path_hashmap_entry, e);
+
if (ignore_case)
return strcasecmp(a->path, key ? key : b->path);
else
@@ -54,6 +66,24 @@ static unsigned int path_hash(const char *path)
return ignore_case ? strihash(path) : strhash(path);
}
+/*
+ * For dir_rename_entry, directory names are stored as a full path from the
+ * toplevel of the repository and do not include a trailing '/'. Also:
+ *
+ * dir: original name of directory being renamed
+ * non_unique_new_dir: if true, could not determine new_dir
+ * new_dir: final name of directory being renamed
+ * possible_new_dirs: temporary used to help determine new_dir; see comments
+ * in get_directory_renames() for details
+ */
+struct dir_rename_entry {
+ struct hashmap_entry ent;
+ char *dir;
+ unsigned non_unique_new_dir:1;
+ struct strbuf new_dir;
+ struct string_list possible_new_dirs;
+};
+
static struct dir_rename_entry *dir_rename_find_entry(struct hashmap *hashmap,
char *dir)
{
@@ -61,18 +91,20 @@ static struct dir_rename_entry *dir_rename_find_entry(struct hashmap *hashmap,
if (dir == NULL)
return NULL;
- hashmap_entry_init(&key, strhash(dir));
+ hashmap_entry_init(&key.ent, strhash(dir));
key.dir = dir;
- return hashmap_get(hashmap, &key, NULL);
+ return hashmap_get_entry(hashmap, &key, ent, NULL);
}
static int dir_rename_cmp(const void *unused_cmp_data,
- const void *entry,
- const void *entry_or_key,
+ const struct hashmap_entry *eptr,
+ const struct hashmap_entry *entry_or_key,
const void *unused_keydata)
{
- const struct dir_rename_entry *e1 = entry;
- const struct dir_rename_entry *e2 = entry_or_key;
+ const struct dir_rename_entry *e1, *e2;
+
+ e1 = container_of(eptr, const struct dir_rename_entry, ent);
+ e2 = container_of(entry_or_key, const struct dir_rename_entry, ent);
return strcmp(e1->dir, e2->dir);
}
@@ -85,34 +117,46 @@ static void dir_rename_init(struct hashmap *map)
static void dir_rename_entry_init(struct dir_rename_entry *entry,
char *directory)
{
- hashmap_entry_init(entry, strhash(directory));
+ hashmap_entry_init(&entry->ent, strhash(directory));
entry->dir = directory;
entry->non_unique_new_dir = 0;
strbuf_init(&entry->new_dir, 0);
string_list_init(&entry->possible_new_dirs, 0);
}
+struct collision_entry {
+ struct hashmap_entry ent;
+ char *target_file;
+ struct string_list source_files;
+ unsigned reported_already:1;
+};
+
static struct collision_entry *collision_find_entry(struct hashmap *hashmap,
char *target_file)
{
struct collision_entry key;
- hashmap_entry_init(&key, strhash(target_file));
+ hashmap_entry_init(&key.ent, strhash(target_file));
key.target_file = target_file;
- return hashmap_get(hashmap, &key, NULL);
+ return hashmap_get_entry(hashmap, &key, ent, NULL);
}
-static int collision_cmp(void *unused_cmp_data,
- const struct collision_entry *e1,
- const struct collision_entry *e2,
+static int collision_cmp(const void *unused_cmp_data,
+ const struct hashmap_entry *eptr,
+ const struct hashmap_entry *entry_or_key,
const void *unused_keydata)
{
+ const struct collision_entry *e1, *e2;
+
+ e1 = container_of(eptr, const struct collision_entry, ent);
+ e2 = container_of(entry_or_key, const struct collision_entry, ent);
+
return strcmp(e1->target_file, e2->target_file);
}
static void collision_init(struct hashmap *map)
{
- hashmap_init(map, (hashmap_cmp_fn) collision_cmp, NULL, 0);
+ hashmap_init(map, collision_cmp, NULL, 0);
}
static void flush_output(struct merge_options *opt)
@@ -284,7 +328,8 @@ static inline void setup_rename_conflict_info(enum rename_type rename_type,
static int show(struct merge_options *opt, int v)
{
- return (!opt->call_depth && opt->verbosity >= v) || opt->verbosity >= 5;
+ return (!opt->priv->call_depth && opt->verbosity >= v) ||
+ opt->verbosity >= 5;
}
__attribute__((format (printf, 3, 4)))
@@ -295,7 +340,7 @@ static void output(struct merge_options *opt, int v, const char *fmt, ...)
if (!show(opt, v))
return;
- strbuf_addchars(&opt->obuf, ' ', opt->call_depth * 2);
+ strbuf_addchars(&opt->obuf, ' ', opt->priv->call_depth * 2);
va_start(ap, fmt);
strbuf_vaddf(&opt->obuf, fmt, ap);
@@ -310,7 +355,7 @@ static void output_commit_title(struct merge_options *opt, struct commit *commit
{
struct merge_remote_desc *desc;
- strbuf_addchars(&opt->obuf, ' ', opt->call_depth * 2);
+ strbuf_addchars(&opt->obuf, ' ', opt->priv->call_depth * 2);
desc = merge_remote_util(commit);
if (desc)
strbuf_addf(&opt->obuf, "virtual %s\n", desc->name);
@@ -358,6 +403,11 @@ static int add_cacheinfo(struct merge_options *opt,
return ret;
}
+static inline int merge_detect_rename(struct merge_options *opt)
+{
+ return (opt->detect_renames >= 0) ? opt->detect_renames : 1;
+}
+
static void init_tree_desc_from_tree(struct tree_desc *desc, struct tree *tree)
{
parse_tree(tree);
@@ -373,74 +423,43 @@ static int unpack_trees_start(struct merge_options *opt,
struct tree_desc t[3];
struct index_state tmp_index = { NULL };
- memset(&opt->unpack_opts, 0, sizeof(opt->unpack_opts));
- if (opt->call_depth)
- opt->unpack_opts.index_only = 1;
+ memset(&opt->priv->unpack_opts, 0, sizeof(opt->priv->unpack_opts));
+ if (opt->priv->call_depth)
+ opt->priv->unpack_opts.index_only = 1;
else
- opt->unpack_opts.update = 1;
- opt->unpack_opts.merge = 1;
- opt->unpack_opts.head_idx = 2;
- opt->unpack_opts.fn = threeway_merge;
- opt->unpack_opts.src_index = opt->repo->index;
- opt->unpack_opts.dst_index = &tmp_index;
- opt->unpack_opts.aggressive = !merge_detect_rename(opt);
- setup_unpack_trees_porcelain(&opt->unpack_opts, "merge");
+ opt->priv->unpack_opts.update = 1;
+ opt->priv->unpack_opts.merge = 1;
+ opt->priv->unpack_opts.head_idx = 2;
+ opt->priv->unpack_opts.fn = threeway_merge;
+ opt->priv->unpack_opts.src_index = opt->repo->index;
+ opt->priv->unpack_opts.dst_index = &tmp_index;
+ opt->priv->unpack_opts.aggressive = !merge_detect_rename(opt);
+ setup_unpack_trees_porcelain(&opt->priv->unpack_opts, "merge");
init_tree_desc_from_tree(t+0, common);
init_tree_desc_from_tree(t+1, head);
init_tree_desc_from_tree(t+2, merge);
- rc = unpack_trees(3, t, &opt->unpack_opts);
+ rc = unpack_trees(3, t, &opt->priv->unpack_opts);
cache_tree_free(&opt->repo->index->cache_tree);
/*
- * Update opt->repo->index to match the new results, AFTER saving a copy
- * in opt->orig_index. Update src_index to point to the saved copy.
- * (verify_uptodate() checks src_index, and the original index is
- * the one that had the necessary modification timestamps.)
+ * Update opt->repo->index to match the new results, AFTER saving a
+ * copy in opt->priv->orig_index. Update src_index to point to the
+ * saved copy. (verify_uptodate() checks src_index, and the original
+ * index is the one that had the necessary modification timestamps.)
*/
- opt->orig_index = *opt->repo->index;
+ opt->priv->orig_index = *opt->repo->index;
*opt->repo->index = tmp_index;
- opt->unpack_opts.src_index = &opt->orig_index;
+ opt->priv->unpack_opts.src_index = &opt->priv->orig_index;
return rc;
}
static void unpack_trees_finish(struct merge_options *opt)
{
- discard_index(&opt->orig_index);
- clear_unpack_trees_porcelain(&opt->unpack_opts);
-}
-
-struct tree *write_tree_from_memory(struct merge_options *opt)
-{
- struct tree *result = NULL;
- struct index_state *istate = opt->repo->index;
-
- if (unmerged_index(istate)) {
- int i;
- fprintf(stderr, "BUG: There are unmerged index entries:\n");
- for (i = 0; i < istate->cache_nr; i++) {
- const struct cache_entry *ce = istate->cache[i];
- if (ce_stage(ce))
- fprintf(stderr, "BUG: %d %.*s\n", ce_stage(ce),
- (int)ce_namelen(ce), ce->name);
- }
- BUG("unmerged index entries in merge-recursive.c");
- }
-
- if (!istate->cache_tree)
- istate->cache_tree = cache_tree();
-
- if (!cache_tree_fully_valid(istate->cache_tree) &&
- cache_tree_update(istate, 0) < 0) {
- err(opt, _("error building trees"));
- return NULL;
- }
-
- result = lookup_tree(opt->repo, &istate->cache_tree->oid);
-
- return result;
+ discard_index(&opt->priv->orig_index);
+ clear_unpack_trees_porcelain(&opt->priv->unpack_opts);
}
static int save_files_dirs(const struct object_id *oid,
@@ -454,8 +473,8 @@ static int save_files_dirs(const struct object_id *oid,
strbuf_addstr(base, path);
FLEX_ALLOC_MEM(entry, path, base->buf, base->len);
- hashmap_entry_init(entry, path_hash(entry->path));
- hashmap_add(&opt->current_file_dir_set, entry);
+ hashmap_entry_init(&entry->e, path_hash(entry->path));
+ hashmap_add(&opt->priv->current_file_dir_set, &entry->e);
strbuf_setlen(base, baselen);
return (S_ISDIR(mode) ? READ_TREE_RECURSIVE : 0);
@@ -586,7 +605,7 @@ static void record_df_conflict_files(struct merge_options *opt,
* If we're merging merge-bases, we don't want to bother with
* any working directory changes.
*/
- if (opt->call_depth)
+ if (opt->priv->call_depth)
return;
/* Ensure D/F conflicts are adjacent in the entries list. */
@@ -598,7 +617,7 @@ static void record_df_conflict_files(struct merge_options *opt,
df_sorted_entries.cmp = string_list_df_name_compare;
string_list_sort(&df_sorted_entries);
- string_list_clear(&opt->df_conflict_file_set, 1);
+ string_list_clear(&opt->priv->df_conflict_file_set, 1);
for (i = 0; i < df_sorted_entries.nr; i++) {
const char *path = df_sorted_entries.items[i].string;
int len = strlen(path);
@@ -614,7 +633,7 @@ static void record_df_conflict_files(struct merge_options *opt,
len > last_len &&
memcmp(path, last_file, last_len) == 0 &&
path[last_len] == '/') {
- string_list_insert(&opt->df_conflict_file_set, last_file);
+ string_list_insert(&opt->priv->df_conflict_file_set, last_file);
}
/*
@@ -681,8 +700,8 @@ static void update_entry(struct stage_data *entry,
static int remove_file(struct merge_options *opt, int clean,
const char *path, int no_wd)
{
- int update_cache = opt->call_depth || clean;
- int update_working_directory = !opt->call_depth && !no_wd;
+ int update_cache = opt->priv->call_depth || clean;
+ int update_working_directory = !opt->priv->call_depth && !no_wd;
if (update_cache) {
if (remove_file_from_index(opt->repo->index, path))
@@ -712,7 +731,9 @@ static void add_flattened_path(struct strbuf *out, const char *s)
out->buf[i] = '_';
}
-static char *unique_path(struct merge_options *opt, const char *path, const char *branch)
+static char *unique_path(struct merge_options *opt,
+ const char *path,
+ const char *branch)
{
struct path_hashmap_entry *entry;
struct strbuf newpath = STRBUF_INIT;
@@ -723,16 +744,16 @@ static char *unique_path(struct merge_options *opt, const char *path, const char
add_flattened_path(&newpath, branch);
base_len = newpath.len;
- while (hashmap_get_from_hash(&opt->current_file_dir_set,
+ while (hashmap_get_from_hash(&opt->priv->current_file_dir_set,
path_hash(newpath.buf), newpath.buf) ||
- (!opt->call_depth && file_exists(newpath.buf))) {
+ (!opt->priv->call_depth && file_exists(newpath.buf))) {
strbuf_setlen(&newpath, base_len);
strbuf_addf(&newpath, "_%d", suffix++);
}
FLEX_ALLOC_MEM(entry, path, newpath.buf, newpath.len);
- hashmap_entry_init(entry, path_hash(entry->path));
- hashmap_add(&opt->current_file_dir_set, entry);
+ hashmap_entry_init(&entry->e, path_hash(entry->path));
+ hashmap_add(&opt->priv->current_file_dir_set, &entry->e);
return strbuf_detach(&newpath, NULL);
}
@@ -775,7 +796,7 @@ static int dir_in_way(struct index_state *istate, const char *path,
static int was_tracked_and_matches(struct merge_options *opt, const char *path,
const struct diff_filespec *blob)
{
- int pos = index_name_pos(&opt->orig_index, path, strlen(path));
+ int pos = index_name_pos(&opt->priv->orig_index, path, strlen(path));
struct cache_entry *ce;
if (0 > pos)
@@ -783,7 +804,7 @@ static int was_tracked_and_matches(struct merge_options *opt, const char *path,
return 0;
/* See if the file we were tracking before matches */
- ce = opt->orig_index.cache[pos];
+ ce = opt->priv->orig_index.cache[pos];
return (oid_eq(&ce->oid, &blob->oid) && ce->ce_mode == blob->mode);
}
@@ -792,7 +813,7 @@ static int was_tracked_and_matches(struct merge_options *opt, const char *path,
*/
static int was_tracked(struct merge_options *opt, const char *path)
{
- int pos = index_name_pos(&opt->orig_index, path, strlen(path));
+ int pos = index_name_pos(&opt->priv->orig_index, path, strlen(path));
if (0 <= pos)
/* we were tracking this path before the merge */
@@ -849,12 +870,12 @@ static int was_dirty(struct merge_options *opt, const char *path)
struct cache_entry *ce;
int dirty = 1;
- if (opt->call_depth || !was_tracked(opt, path))
+ if (opt->priv->call_depth || !was_tracked(opt, path))
return !dirty;
- ce = index_file_exists(opt->unpack_opts.src_index,
+ ce = index_file_exists(opt->priv->unpack_opts.src_index,
path, strlen(path), ignore_case);
- dirty = verify_uptodate(ce, &opt->unpack_opts) != 0;
+ dirty = verify_uptodate(ce, &opt->priv->unpack_opts) != 0;
return dirty;
}
@@ -864,8 +885,8 @@ static int make_room_for_path(struct merge_options *opt, const char *path)
const char *msg = _("failed to create path '%s'%s");
/* Unlink any D/F conflict files that are in the way */
- for (i = 0; i < opt->df_conflict_file_set.nr; i++) {
- const char *df_path = opt->df_conflict_file_set.items[i].string;
+ for (i = 0; i < opt->priv->df_conflict_file_set.nr; i++) {
+ const char *df_path = opt->priv->df_conflict_file_set.items[i].string;
size_t pathlen = strlen(path);
size_t df_pathlen = strlen(df_path);
if (df_pathlen < pathlen &&
@@ -875,7 +896,7 @@ static int make_room_for_path(struct merge_options *opt, const char *path)
_("Removing %s to make room for subdirectory\n"),
df_path);
unlink(df_path);
- unsorted_string_list_delete_item(&opt->df_conflict_file_set,
+ unsorted_string_list_delete_item(&opt->priv->df_conflict_file_set,
i, 0);
break;
}
@@ -916,7 +937,7 @@ static int update_file_flags(struct merge_options *opt,
{
int ret = 0;
- if (opt->call_depth)
+ if (opt->priv->call_depth)
update_wd = 0;
if (update_wd) {
@@ -935,9 +956,11 @@ static int update_file_flags(struct merge_options *opt,
}
buf = read_object_file(&contents->oid, &type, &size);
- if (!buf)
- return err(opt, _("cannot read object %s '%s'"),
- oid_to_hex(&contents->oid), path);
+ if (!buf) {
+ ret = err(opt, _("cannot read object %s '%s'"),
+ oid_to_hex(&contents->oid), path);
+ goto free_buf;
+ }
if (type != OBJ_BLOB) {
ret = err(opt, _("blob expected for %s '%s'"),
oid_to_hex(&contents->oid), path);
@@ -945,7 +968,8 @@ static int update_file_flags(struct merge_options *opt,
}
if (S_ISREG(contents->mode)) {
struct strbuf strbuf = STRBUF_INIT;
- if (convert_to_working_tree(opt->repo->index, path, buf, size, &strbuf)) {
+ if (convert_to_working_tree(opt->repo->index,
+ path, buf, size, &strbuf)) {
free(buf);
size = strbuf.len;
buf = strbuf_detach(&strbuf, NULL);
@@ -998,7 +1022,7 @@ static int update_file(struct merge_options *opt,
const char *path)
{
return update_file_flags(opt, contents, path,
- opt->call_depth || clean, !opt->call_depth);
+ opt->priv->call_depth || clean, !opt->priv->call_depth);
}
/* Low level file merging, update and removal */
@@ -1020,22 +1044,22 @@ static int merge_3way(struct merge_options *opt,
{
mmfile_t orig, src1, src2;
struct ll_merge_options ll_opts = {0};
- char *base_name, *name1, *name2;
+ char *base, *name1, *name2;
int merge_status;
ll_opts.renormalize = opt->renormalize;
ll_opts.extra_marker_size = extra_marker_size;
ll_opts.xdl_opts = opt->xdl_opts;
- if (opt->call_depth) {
+ if (opt->priv->call_depth) {
ll_opts.virtual_ancestor = 1;
ll_opts.variant = 0;
} else {
switch (opt->recursive_variant) {
- case MERGE_RECURSIVE_OURS:
+ case MERGE_VARIANT_OURS:
ll_opts.variant = XDL_MERGE_FAVOR_OURS;
break;
- case MERGE_RECURSIVE_THEIRS:
+ case MERGE_VARIANT_THEIRS:
ll_opts.variant = XDL_MERGE_FAVOR_THEIRS;
break;
default:
@@ -1044,16 +1068,13 @@ static int merge_3way(struct merge_options *opt,
}
}
- assert(a->path && b->path);
- if (strcmp(a->path, b->path) ||
- (opt->ancestor != NULL && strcmp(a->path, o->path) != 0)) {
- base_name = opt->ancestor == NULL ? NULL :
- mkpathdup("%s:%s", opt->ancestor, o->path);
+ assert(a->path && b->path && o->path && opt->ancestor);
+ if (strcmp(a->path, b->path) || strcmp(a->path, o->path) != 0) {
+ base = mkpathdup("%s:%s", opt->ancestor, o->path);
name1 = mkpathdup("%s:%s", branch1, a->path);
name2 = mkpathdup("%s:%s", branch2, b->path);
} else {
- base_name = opt->ancestor == NULL ? NULL :
- mkpathdup("%s", opt->ancestor);
+ base = mkpathdup("%s", opt->ancestor);
name1 = mkpathdup("%s", branch1);
name2 = mkpathdup("%s", branch2);
}
@@ -1062,11 +1083,11 @@ static int merge_3way(struct merge_options *opt,
read_mmblob(&src1, &a->oid);
read_mmblob(&src2, &b->oid);
- merge_status = ll_merge(result_buf, a->path, &orig, base_name,
+ merge_status = ll_merge(result_buf, a->path, &orig, base,
&src1, name1, &src2, name2,
opt->repo->index, &ll_opts);
- free(base_name);
+ free(base);
free(name1);
free(name2);
free(orig.ptr);
@@ -1161,7 +1182,7 @@ static int merge_submodule(struct merge_options *opt,
struct object_array merges;
int i;
- int search = !opt->call_depth;
+ int search = !opt->priv->call_depth;
/* store a in result in case we fail */
oidcpy(result, a);
@@ -1345,15 +1366,15 @@ static int merge_mode_and_contents(struct merge_options *opt,
&b->oid);
} else if (S_ISLNK(a->mode)) {
switch (opt->recursive_variant) {
- case MERGE_RECURSIVE_NORMAL:
+ case MERGE_VARIANT_NORMAL:
oidcpy(&result->blob.oid, &a->oid);
if (!oid_eq(&a->oid, &b->oid))
result->clean = 0;
break;
- case MERGE_RECURSIVE_OURS:
+ case MERGE_VARIANT_OURS:
oidcpy(&result->blob.oid, &a->oid);
break;
- case MERGE_RECURSIVE_THEIRS:
+ case MERGE_VARIANT_THEIRS:
oidcpy(&result->blob.oid, &b->oid);
break;
}
@@ -1379,10 +1400,11 @@ static int handle_rename_via_dir(struct merge_options *opt,
const struct rename *ren = ci->ren1;
const struct diff_filespec *dest = ren->pair->two;
char *file_path = dest->path;
- int mark_conflicted = (opt->detect_directory_renames == 1);
+ int mark_conflicted = (opt->detect_directory_renames ==
+ MERGE_DIRECTORY_RENAMES_CONFLICT);
assert(ren->dir_rename_original_dest);
- if (!opt->call_depth && would_lose_untracked(opt, dest->path)) {
+ if (!opt->priv->call_depth && would_lose_untracked(opt, dest->path)) {
mark_conflicted = 1;
file_path = unique_path(opt, dest->path, ren->branch);
output(opt, 1, _("Error: Refusing to lose untracked file at %s; "
@@ -1425,12 +1447,12 @@ static int handle_change_delete(struct merge_options *opt,
const char *update_path = path;
int ret = 0;
- if (dir_in_way(opt->repo->index, path, !opt->call_depth, 0) ||
- (!opt->call_depth && would_lose_untracked(opt, path))) {
+ if (dir_in_way(opt->repo->index, path, !opt->priv->call_depth, 0) ||
+ (!opt->priv->call_depth && would_lose_untracked(opt, path))) {
update_path = alt_path = unique_path(opt, path, change_branch);
}
- if (opt->call_depth) {
+ if (opt->priv->call_depth) {
/*
* We cannot arbitrarily accept either a_sha or b_sha as
* correct; since there is no true "middle point" between
@@ -1505,14 +1527,14 @@ static int handle_rename_delete(struct merge_options *opt,
opt->branch2 : opt->branch1);
if (handle_change_delete(opt,
- opt->call_depth ? orig->path : dest->path,
- opt->call_depth ? NULL : orig->path,
+ opt->priv->call_depth ? orig->path : dest->path,
+ opt->priv->call_depth ? NULL : orig->path,
orig, dest,
rename_branch, delete_branch,
_("rename"), _("renamed")))
return -1;
- if (opt->call_depth)
+ if (opt->priv->call_depth)
return remove_file_from_index(opt->repo->index, dest->path);
else
return update_stages(opt, dest->path, NULL,
@@ -1549,7 +1571,7 @@ static int handle_file_collision(struct merge_options *opt,
/*
* In the recursive case, we just opt to undo renames
*/
- if (opt->call_depth && (prev_path1 || prev_path2)) {
+ if (opt->priv->call_depth && (prev_path1 || prev_path2)) {
/* Put first file (a->oid, a->mode) in its original spot */
if (prev_path1) {
if (update_file(opt, 1, a, prev_path1))
@@ -1578,10 +1600,10 @@ static int handle_file_collision(struct merge_options *opt,
/* Remove rename sources if rename/add or rename/rename(2to1) */
if (prev_path1)
remove_file(opt, 1, prev_path1,
- opt->call_depth || would_lose_untracked(opt, prev_path1));
+ opt->priv->call_depth || would_lose_untracked(opt, prev_path1));
if (prev_path2)
remove_file(opt, 1, prev_path2,
- opt->call_depth || would_lose_untracked(opt, prev_path2));
+ opt->priv->call_depth || would_lose_untracked(opt, prev_path2));
/*
* Remove the collision path, if it wouldn't cause dirty contents
@@ -1623,12 +1645,12 @@ static int handle_file_collision(struct merge_options *opt,
null.mode = 0;
if (merge_mode_and_contents(opt, &null, a, b, collide_path,
- branch1, branch2, opt->call_depth * 2, &mfi))
+ branch1, branch2, opt->priv->call_depth * 2, &mfi))
return -1;
mfi.clean &= !alt_path;
if (update_file(opt, mfi.clean, &mfi.blob, update_path))
return -1;
- if (!mfi.clean && !opt->call_depth &&
+ if (!mfi.clean && !opt->priv->call_depth &&
update_stages(opt, collide_path, NULL, a, b))
return -1;
free(alt_path);
@@ -1668,7 +1690,7 @@ static int handle_rename_add(struct merge_options *opt,
&ci->ren1->src_entry->stages[other_stage],
prev_path_desc,
opt->branch1, opt->branch2,
- 1 + opt->call_depth * 2, &mfi))
+ 1 + opt->priv->call_depth * 2, &mfi))
return -1;
free(prev_path_desc);
@@ -1686,7 +1708,7 @@ static char *find_path_for_conflict(struct merge_options *opt,
const char *branch2)
{
char *new_path = NULL;
- if (dir_in_way(opt->repo->index, path, !opt->call_depth, 0)) {
+ if (dir_in_way(opt->repo->index, path, !opt->priv->call_depth, 0)) {
new_path = unique_path(opt, path, branch1);
output(opt, 1, _("%s is a directory in %s adding "
"as %s instead"),
@@ -1717,17 +1739,17 @@ static int handle_rename_rename_1to2(struct merge_options *opt,
"rename \"%s\"->\"%s\" in \"%s\"%s"),
o->path, a->path, ci->ren1->branch,
o->path, b->path, ci->ren2->branch,
- opt->call_depth ? _(" (left unresolved)") : "");
+ opt->priv->call_depth ? _(" (left unresolved)") : "");
path_desc = xstrfmt("%s and %s, both renamed from %s",
a->path, b->path, o->path);
if (merge_mode_and_contents(opt, o, a, b, path_desc,
ci->ren1->branch, ci->ren2->branch,
- opt->call_depth * 2, &mfi))
+ opt->priv->call_depth * 2, &mfi))
return -1;
free(path_desc);
- if (opt->call_depth) {
+ if (opt->priv->call_depth) {
/*
* FIXME: For rename/add-source conflicts (if we could detect
* such), this is wrong. We should instead find a unique
@@ -1842,12 +1864,12 @@ static int handle_rename_rename_2to1(struct merge_options *opt,
&ci->ren1->src_entry->stages[ostage1],
path_side_1_desc,
opt->branch1, opt->branch2,
- 1 + opt->call_depth * 2, &mfi_c1) ||
+ 1 + opt->priv->call_depth * 2, &mfi_c1) ||
merge_mode_and_contents(opt, b,
&ci->ren2->src_entry->stages[ostage2],
c2, path_side_2_desc,
opt->branch1, opt->branch2,
- 1 + opt->call_depth * 2, &mfi_c2))
+ 1 + opt->priv->call_depth * 2, &mfi_c2))
return -1;
free(path_side_1_desc);
free(path_side_2_desc);
@@ -1881,17 +1903,15 @@ static struct diff_queue_struct *get_diffpairs(struct merge_options *opt,
*/
if (opts.detect_rename > DIFF_DETECT_RENAME)
opts.detect_rename = DIFF_DETECT_RENAME;
- opts.rename_limit = opt->merge_rename_limit >= 0 ? opt->merge_rename_limit :
- opt->diff_rename_limit >= 0 ? opt->diff_rename_limit :
- 1000;
+ opts.rename_limit = (opt->rename_limit >= 0) ? opt->rename_limit : 1000;
opts.rename_score = opt->rename_score;
opts.show_rename_progress = opt->show_rename_progress;
opts.output_format = DIFF_FORMAT_NO_OUTPUT;
diff_setup_done(&opts);
diff_tree_oid(&o_tree->object.oid, &tree->object.oid, "", &opts);
diffcore_std(&opts);
- if (opts.needed_rename_limit > opt->needed_rename_limit)
- opt->needed_rename_limit = opts.needed_rename_limit;
+ if (opts.needed_rename_limit > opt->priv->needed_rename_limit)
+ opt->priv->needed_rename_limit = opts.needed_rename_limit;
ret = xmalloc(sizeof(*ret));
*ret = diff_queued_diff;
@@ -2060,7 +2080,7 @@ static void remove_hashmap_entries(struct hashmap *dir_renames,
for (i = 0; i < items_to_remove->nr; i++) {
entry = items_to_remove->items[i].util;
- hashmap_remove(dir_renames, entry, NULL);
+ hashmap_remove(dir_renames, &entry->ent, NULL);
}
string_list_clear(items_to_remove, 0);
}
@@ -2183,8 +2203,8 @@ static void handle_directory_level_conflicts(struct merge_options *opt,
struct string_list remove_from_head = STRING_LIST_INIT_NODUP;
struct string_list remove_from_merge = STRING_LIST_INIT_NODUP;
- hashmap_iter_init(dir_re_head, &iter);
- while ((head_ent = hashmap_iter_next(&iter))) {
+ hashmap_for_each_entry(dir_re_head, &iter, head_ent,
+ ent /* member name */) {
merge_ent = dir_rename_find_entry(dir_re_merge, head_ent->dir);
if (merge_ent &&
!head_ent->non_unique_new_dir &&
@@ -2208,8 +2228,8 @@ static void handle_directory_level_conflicts(struct merge_options *opt,
remove_hashmap_entries(dir_re_head, &remove_from_head);
remove_hashmap_entries(dir_re_merge, &remove_from_merge);
- hashmap_iter_init(dir_re_merge, &iter);
- while ((merge_ent = hashmap_iter_next(&iter))) {
+ hashmap_for_each_entry(dir_re_merge, &iter, merge_ent,
+ ent /* member name */) {
head_ent = dir_rename_find_entry(dir_re_head, merge_ent->dir);
if (tree_has_path(opt->repo, merge, merge_ent->dir)) {
/* 2. This wasn't a directory rename after all */
@@ -2288,7 +2308,7 @@ static struct hashmap *get_directory_renames(struct diff_queue_struct *pairs)
if (!entry) {
entry = xmalloc(sizeof(*entry));
dir_rename_entry_init(entry, old_dir);
- hashmap_put(dir_renames, entry);
+ hashmap_put(dir_renames, &entry->ent);
} else {
free(old_dir);
}
@@ -2313,8 +2333,8 @@ static struct hashmap *get_directory_renames(struct diff_queue_struct *pairs)
* we set non_unique_new_dir. Once we've determined the winner (or
* that there is no winner), we no longer need possible_new_dirs.
*/
- hashmap_iter_init(dir_renames, &iter);
- while ((entry = hashmap_iter_next(&iter))) {
+ hashmap_for_each_entry(dir_renames, &iter, entry,
+ ent /* member name */) {
int max = 0;
int bad_max = 0;
char *best = NULL;
@@ -2417,8 +2437,9 @@ static void compute_collisions(struct hashmap *collisions,
if (!collision_ent) {
collision_ent = xcalloc(1,
sizeof(struct collision_entry));
- hashmap_entry_init(collision_ent, strhash(new_path));
- hashmap_put(collisions, collision_ent);
+ hashmap_entry_init(&collision_ent->ent,
+ strhash(new_path));
+ hashmap_put(collisions, &collision_ent->ent);
collision_ent->target_file = new_path;
} else {
free(new_path);
@@ -2671,12 +2692,12 @@ static struct string_list *get_renames(struct merge_options *opt,
entries);
}
- hashmap_iter_init(&collisions, &iter);
- while ((e = hashmap_iter_next(&iter))) {
+ hashmap_for_each_entry(&collisions, &iter, e,
+ ent /* member name */) {
free(e->target_file);
string_list_clear(&e->source_files, 0);
}
- hashmap_free(&collisions, 1);
+ hashmap_free_entries(&collisions, struct collision_entry, ent);
return renames;
}
@@ -2889,13 +2910,13 @@ static void initial_cleanup_rename(struct diff_queue_struct *pairs,
struct hashmap_iter iter;
struct dir_rename_entry *e;
- hashmap_iter_init(dir_renames, &iter);
- while ((e = hashmap_iter_next(&iter))) {
+ hashmap_for_each_entry(dir_renames, &iter, e,
+ ent /* member name */) {
free(e->dir);
strbuf_release(&e->new_dir);
/* possible_new_dirs already cleared in get_directory_renames */
}
- hashmap_free(dir_renames, 1);
+ hashmap_free_entries(dir_renames, struct dir_rename_entry, ent);
free(dir_renames);
free(pairs->queue);
@@ -2922,8 +2943,9 @@ static int detect_and_process_renames(struct merge_options *opt,
head_pairs = get_diffpairs(opt, common, head);
merge_pairs = get_diffpairs(opt, common, merge);
- if ((opt->detect_directory_renames == 2) ||
- (opt->detect_directory_renames == 1 && !opt->call_depth)) {
+ if ((opt->detect_directory_renames == MERGE_DIRECTORY_RENAMES_TRUE) ||
+ (opt->detect_directory_renames == MERGE_DIRECTORY_RENAMES_CONFLICT &&
+ !opt->priv->call_depth)) {
dir_re_head = get_directory_renames(head_pairs);
dir_re_merge = get_directory_renames(merge_pairs);
@@ -3080,13 +3102,13 @@ static int handle_content_merge(struct merge_file_info *mfi,
reason = _("add/add");
assert(o->path && a->path && b->path);
- if (ci && dir_in_way(opt->repo->index, path, !opt->call_depth,
+ if (ci && dir_in_way(opt->repo->index, path, !opt->priv->call_depth,
S_ISGITLINK(ci->ren1->pair->two->mode)))
df_conflict_remains = 1;
if (merge_mode_and_contents(opt, o, a, b, path,
opt->branch1, opt->branch2,
- opt->call_depth * 2, mfi))
+ opt->priv->call_depth * 2, mfi))
return -1;
/*
@@ -3102,7 +3124,7 @@ static int handle_content_merge(struct merge_file_info *mfi,
output(opt, 3, _("Skipped %s (merged same as existing)"), path);
if (add_cacheinfo(opt, &mfi->blob, path,
- 0, (!opt->call_depth && !is_dirty), 0))
+ 0, (!opt->priv->call_depth && !is_dirty), 0))
return -1;
/*
* However, add_cacheinfo() will delete the old cache entry
@@ -3110,8 +3132,8 @@ static int handle_content_merge(struct merge_file_info *mfi,
* flag to avoid making the file appear as if it were
* deleted by the user.
*/
- pos = index_name_pos(&opt->orig_index, path, strlen(path));
- ce = opt->orig_index.cache[pos];
+ pos = index_name_pos(&opt->priv->orig_index, path, strlen(path));
+ ce = opt->priv->orig_index.cache[pos];
if (ce_skip_worktree(ce)) {
pos = index_name_pos(opt->repo->index, path, strlen(path));
ce = opt->repo->index->cache[pos];
@@ -3132,7 +3154,7 @@ static int handle_content_merge(struct merge_file_info *mfi,
if (df_conflict_remains || is_dirty) {
char *new_path;
- if (opt->call_depth) {
+ if (opt->priv->call_depth) {
remove_file_from_index(opt->repo->index, path);
} else {
if (!mfi->clean) {
@@ -3181,7 +3203,8 @@ static int handle_rename_normal(struct merge_options *opt,
clean = handle_content_merge(&mfi, opt, path, was_dirty(opt, path),
o, a, b, ci);
- if (clean && opt->detect_directory_renames == 1 &&
+ if (clean &&
+ opt->detect_directory_renames == MERGE_DIRECTORY_RENAMES_CONFLICT &&
ren->dir_rename_original_dest) {
if (update_stages(opt, path,
NULL,
@@ -3226,12 +3249,12 @@ static int warn_about_dir_renamed_entries(struct merge_options *opt,
return clean;
/* Sanity checks */
- assert(opt->detect_directory_renames > 0);
+ assert(opt->detect_directory_renames > MERGE_DIRECTORY_RENAMES_NONE);
assert(ren->dir_rename_original_type == 'A' ||
ren->dir_rename_original_type == 'R');
/* Check whether to treat directory renames as a conflict */
- clean = (opt->detect_directory_renames == 2);
+ clean = (opt->detect_directory_renames == MERGE_DIRECTORY_RENAMES_TRUE);
is_add = (ren->dir_rename_original_type == 'A');
if (ren->dir_rename_original_type == 'A' && clean) {
@@ -3390,7 +3413,7 @@ static int process_entry(struct merge_options *opt,
conf = _("directory/file");
}
if (dir_in_way(opt->repo->index, path,
- !opt->call_depth && !S_ISGITLINK(a->mode),
+ !opt->priv->call_depth && !S_ISGITLINK(a->mode),
0)) {
char *new_path = unique_path(opt, path, add_branch);
clean_merge = 0;
@@ -3399,7 +3422,7 @@ static int process_entry(struct merge_options *opt,
conf, path, other_branch, path, new_path);
if (update_file(opt, 0, contents, new_path))
clean_merge = -1;
- else if (opt->call_depth)
+ else if (opt->priv->call_depth)
remove_file_from_index(opt->repo->index, path);
free(new_path);
} else {
@@ -3439,37 +3462,32 @@ static int process_entry(struct merge_options *opt,
return clean_merge;
}
-int merge_trees(struct merge_options *opt,
- struct tree *head,
- struct tree *merge,
- struct tree *common,
- struct tree **result)
+static int merge_trees_internal(struct merge_options *opt,
+ struct tree *head,
+ struct tree *merge,
+ struct tree *merge_base,
+ struct tree **result)
{
struct index_state *istate = opt->repo->index;
int code, clean;
- struct strbuf sb = STRBUF_INIT;
-
- if (!opt->call_depth && repo_index_has_changes(opt->repo, head, &sb)) {
- err(opt, _("Your local changes to the following files would be overwritten by merge:\n %s"),
- sb.buf);
- return -1;
- }
if (opt->subtree_shift) {
- merge = shift_tree_object(opt->repo, head, merge, opt->subtree_shift);
- common = shift_tree_object(opt->repo, head, common, opt->subtree_shift);
+ merge = shift_tree_object(opt->repo, head, merge,
+ opt->subtree_shift);
+ merge_base = shift_tree_object(opt->repo, head, merge_base,
+ opt->subtree_shift);
}
- if (oid_eq(&common->object.oid, &merge->object.oid)) {
+ if (oid_eq(&merge_base->object.oid, &merge->object.oid)) {
output(opt, 0, _("Already up to date!"));
*result = head;
return 1;
}
- code = unpack_trees_start(opt, common, head, merge);
+ code = unpack_trees_start(opt, merge_base, head, merge);
if (code != 0) {
- if (show(opt, 4) || opt->call_depth)
+ if (show(opt, 4) || opt->priv->call_depth)
err(opt, _("merging of trees %s and %s failed"),
oid_to_hex(&head->object.oid),
oid_to_hex(&merge->object.oid));
@@ -3488,12 +3506,13 @@ int merge_trees(struct merge_options *opt,
* opposed to decaring a local hashmap is for convenience
* so that we don't have to pass it to around.
*/
- hashmap_init(&opt->current_file_dir_set, path_hashmap_cmp, NULL, 512);
+ hashmap_init(&opt->priv->current_file_dir_set, path_hashmap_cmp,
+ NULL, 512);
get_files_dirs(opt, head);
get_files_dirs(opt, merge);
entries = get_unmerged(opt->repo->index);
- clean = detect_and_process_renames(opt, common, head, merge,
+ clean = detect_and_process_renames(opt, merge_base, head, merge,
entries, &re_info);
record_df_conflict_files(opt, entries);
if (clean < 0)
@@ -3524,7 +3543,8 @@ int merge_trees(struct merge_options *opt,
string_list_clear(entries, 1);
free(entries);
- hashmap_free(&opt->current_file_dir_set, 1);
+ hashmap_free_entries(&opt->priv->current_file_dir_set,
+ struct path_hashmap_entry, e);
if (clean < 0) {
unpack_trees_finish(opt);
@@ -3536,7 +3556,8 @@ int merge_trees(struct merge_options *opt,
unpack_trees_finish(opt);
- if (opt->call_depth && !(*result = write_tree_from_memory(opt)))
+ if (opt->priv->call_depth &&
+ !(*result = write_in_core_index_as_tree(opt->repo)))
return -1;
return clean;
@@ -3557,16 +3578,18 @@ static struct commit_list *reverse_commit_list(struct commit_list *list)
* Merge the commits h1 and h2, return the resulting virtual
* commit object and a flag indicating the cleanness of the merge.
*/
-int merge_recursive(struct merge_options *opt,
- struct commit *h1,
- struct commit *h2,
- struct commit_list *ca,
- struct commit **result)
+static int merge_recursive_internal(struct merge_options *opt,
+ struct commit *h1,
+ struct commit *h2,
+ struct commit_list *merge_bases,
+ struct commit **result)
{
struct commit_list *iter;
- struct commit *merged_common_ancestors;
- struct tree *mrtree;
+ struct commit *merged_merge_bases;
+ struct tree *result_tree;
int clean;
+ const char *ancestor_name;
+ struct strbuf merge_base_abbrev = STRBUF_INIT;
if (show(opt, 4)) {
output(opt, 4, _("Merging:"));
@@ -3574,32 +3597,43 @@ int merge_recursive(struct merge_options *opt,
output_commit_title(opt, h2);
}
- if (!ca) {
- ca = get_merge_bases(h1, h2);
- ca = reverse_commit_list(ca);
+ if (!merge_bases) {
+ merge_bases = get_merge_bases(h1, h2);
+ merge_bases = reverse_commit_list(merge_bases);
}
if (show(opt, 5)) {
- unsigned cnt = commit_list_count(ca);
+ unsigned cnt = commit_list_count(merge_bases);
output(opt, 5, Q_("found %u common ancestor:",
"found %u common ancestors:", cnt), cnt);
- for (iter = ca; iter; iter = iter->next)
+ for (iter = merge_bases; iter; iter = iter->next)
output_commit_title(opt, iter->item);
}
- merged_common_ancestors = pop_commit(&ca);
- if (merged_common_ancestors == NULL) {
+ merged_merge_bases = pop_commit(&merge_bases);
+ if (merged_merge_bases == NULL) {
/* if there is no common ancestor, use an empty tree */
struct tree *tree;
tree = lookup_tree(opt->repo, opt->repo->hash_algo->empty_tree);
- merged_common_ancestors = make_virtual_commit(opt->repo, tree, "ancestor");
+ merged_merge_bases = make_virtual_commit(opt->repo, tree,
+ "ancestor");
+ ancestor_name = "empty tree";
+ } else if (opt->ancestor && !opt->priv->call_depth) {
+ ancestor_name = opt->ancestor;
+ } else if (merge_bases) {
+ ancestor_name = "merged common ancestors";
+ } else {
+ strbuf_add_unique_abbrev(&merge_base_abbrev,
+ &merged_merge_bases->object.oid,
+ DEFAULT_ABBREV);
+ ancestor_name = merge_base_abbrev.buf;
}
- for (iter = ca; iter; iter = iter->next) {
+ for (iter = merge_bases; iter; iter = iter->next) {
const char *saved_b1, *saved_b2;
- opt->call_depth++;
+ opt->priv->call_depth++;
/*
* When the merge fails, the result contains files
* with conflict markers. The cleanness flag is
@@ -3613,45 +3647,134 @@ int merge_recursive(struct merge_options *opt,
saved_b2 = opt->branch2;
opt->branch1 = "Temporary merge branch 1";
opt->branch2 = "Temporary merge branch 2";
- if (merge_recursive(opt, merged_common_ancestors, iter->item,
- NULL, &merged_common_ancestors) < 0)
+ if (merge_recursive_internal(opt, merged_merge_bases, iter->item,
+ NULL, &merged_merge_bases) < 0)
return -1;
opt->branch1 = saved_b1;
opt->branch2 = saved_b2;
- opt->call_depth--;
+ opt->priv->call_depth--;
- if (!merged_common_ancestors)
+ if (!merged_merge_bases)
return err(opt, _("merge returned no commit"));
}
discard_index(opt->repo->index);
- if (!opt->call_depth)
+ if (!opt->priv->call_depth)
repo_read_index(opt->repo);
- opt->ancestor = "merged common ancestors";
- clean = merge_trees(opt, get_commit_tree(h1), get_commit_tree(h2),
- get_commit_tree(merged_common_ancestors),
- &mrtree);
+ opt->ancestor = ancestor_name;
+ clean = merge_trees_internal(opt,
+ repo_get_commit_tree(opt->repo, h1),
+ repo_get_commit_tree(opt->repo, h2),
+ repo_get_commit_tree(opt->repo,
+ merged_merge_bases),
+ &result_tree);
+ strbuf_release(&merge_base_abbrev);
+ opt->ancestor = NULL; /* avoid accidental re-use of opt->ancestor */
if (clean < 0) {
flush_output(opt);
return clean;
}
- if (opt->call_depth) {
- *result = make_virtual_commit(opt->repo, mrtree, "merged tree");
+ if (opt->priv->call_depth) {
+ *result = make_virtual_commit(opt->repo, result_tree,
+ "merged tree");
commit_list_insert(h1, &(*result)->parents);
commit_list_insert(h2, &(*result)->parents->next);
}
+ return clean;
+}
+
+static int merge_start(struct merge_options *opt, struct tree *head)
+{
+ struct strbuf sb = STRBUF_INIT;
+
+ /* Sanity checks on opt */
+ assert(opt->repo);
+
+ assert(opt->branch1 && opt->branch2);
+
+ assert(opt->detect_renames >= -1 &&
+ opt->detect_renames <= DIFF_DETECT_COPY);
+ assert(opt->detect_directory_renames >= MERGE_DIRECTORY_RENAMES_NONE &&
+ opt->detect_directory_renames <= MERGE_DIRECTORY_RENAMES_TRUE);
+ assert(opt->rename_limit >= -1);
+ assert(opt->rename_score >= 0 && opt->rename_score <= MAX_SCORE);
+ assert(opt->show_rename_progress >= 0 && opt->show_rename_progress <= 1);
+
+ assert(opt->xdl_opts >= 0);
+ assert(opt->recursive_variant >= MERGE_VARIANT_NORMAL &&
+ opt->recursive_variant <= MERGE_VARIANT_THEIRS);
+
+ assert(opt->verbosity >= 0 && opt->verbosity <= 5);
+ assert(opt->buffer_output <= 2);
+ assert(opt->obuf.len == 0);
+
+ assert(opt->priv == NULL);
+
+ /* Sanity check on repo state; index must match head */
+ if (repo_index_has_changes(opt->repo, head, &sb)) {
+ err(opt, _("Your local changes to the following files would be overwritten by merge:\n %s"),
+ sb.buf);
+ strbuf_release(&sb);
+ return -1;
+ }
+
+ opt->priv = xcalloc(1, sizeof(*opt->priv));
+ string_list_init(&opt->priv->df_conflict_file_set, 1);
+ return 0;
+}
+
+static void merge_finalize(struct merge_options *opt)
+{
flush_output(opt);
- if (!opt->call_depth && opt->buffer_output < 2)
+ if (!opt->priv->call_depth && opt->buffer_output < 2)
strbuf_release(&opt->obuf);
if (show(opt, 2))
diff_warn_rename_limit("merge.renamelimit",
- opt->needed_rename_limit, 0);
+ opt->priv->needed_rename_limit, 0);
+ FREE_AND_NULL(opt->priv);
+}
+
+int merge_trees(struct merge_options *opt,
+ struct tree *head,
+ struct tree *merge,
+ struct tree *merge_base)
+{
+ int clean;
+ struct tree *ignored;
+
+ assert(opt->ancestor != NULL);
+
+ if (merge_start(opt, head))
+ return -1;
+ clean = merge_trees_internal(opt, head, merge, merge_base, &ignored);
+ merge_finalize(opt);
+
return clean;
}
-static struct commit *get_ref(struct repository *repo, const struct object_id *oid,
+int merge_recursive(struct merge_options *opt,
+ struct commit *h1,
+ struct commit *h2,
+ struct commit_list *merge_bases,
+ struct commit **result)
+{
+ int clean;
+
+ assert(opt->ancestor == NULL ||
+ !strcmp(opt->ancestor, "constructed merge base"));
+
+ if (merge_start(opt, repo_get_commit_tree(opt->repo, h1)))
+ return -1;
+ clean = merge_recursive_internal(opt, h1, h2, merge_bases, result);
+ merge_finalize(opt);
+
+ return clean;
+}
+
+static struct commit *get_ref(struct repository *repo,
+ const struct object_id *oid,
const char *name)
{
struct object *object;
@@ -3672,8 +3795,8 @@ static struct commit *get_ref(struct repository *repo, const struct object_id *o
int merge_recursive_generic(struct merge_options *opt,
const struct object_id *head,
const struct object_id *merge,
- int num_base_list,
- const struct object_id **base_list,
+ int num_merge_bases,
+ const struct object_id **merge_bases,
struct commit **result)
{
int clean;
@@ -3682,15 +3805,18 @@ int merge_recursive_generic(struct merge_options *opt,
struct commit *next_commit = get_ref(opt->repo, merge, opt->branch2);
struct commit_list *ca = NULL;
- if (base_list) {
+ if (merge_bases) {
int i;
- for (i = 0; i < num_base_list; ++i) {
+ for (i = 0; i < num_merge_bases; ++i) {
struct commit *base;
- if (!(base = get_ref(opt->repo, base_list[i], oid_to_hex(base_list[i]))))
+ if (!(base = get_ref(opt->repo, merge_bases[i],
+ oid_to_hex(merge_bases[i]))))
return err(opt, _("Could not parse object '%s'"),
- oid_to_hex(base_list[i]));
+ oid_to_hex(merge_bases[i]));
commit_list_insert(base, &ca);
}
+ if (num_merge_bases == 1)
+ opt->ancestor = "constructed merge base";
}
repo_hold_locked_index(opt->repo, &lock, LOCK_DIE_ON_ERROR);
@@ -3712,22 +3838,25 @@ static void merge_recursive_config(struct merge_options *opt)
{
char *value = NULL;
git_config_get_int("merge.verbosity", &opt->verbosity);
- git_config_get_int("diff.renamelimit", &opt->diff_rename_limit);
- git_config_get_int("merge.renamelimit", &opt->merge_rename_limit);
+ git_config_get_int("diff.renamelimit", &opt->rename_limit);
+ git_config_get_int("merge.renamelimit", &opt->rename_limit);
if (!git_config_get_string("diff.renames", &value)) {
- opt->diff_detect_rename = git_config_rename("diff.renames", value);
+ opt->detect_renames = git_config_rename("diff.renames", value);
free(value);
}
if (!git_config_get_string("merge.renames", &value)) {
- opt->merge_detect_rename = git_config_rename("merge.renames", value);
+ opt->detect_renames = git_config_rename("merge.renames", value);
free(value);
}
if (!git_config_get_string("merge.directoryrenames", &value)) {
int boolval = git_parse_maybe_bool(value);
if (0 <= boolval) {
- opt->detect_directory_renames = boolval ? 2 : 0;
+ opt->detect_directory_renames = boolval ?
+ MERGE_DIRECTORY_RENAMES_TRUE :
+ MERGE_DIRECTORY_RENAMES_NONE;
} else if (!strcasecmp(value, "conflict")) {
- opt->detect_directory_renames = 1;
+ opt->detect_directory_renames =
+ MERGE_DIRECTORY_RENAMES_CONFLICT;
} /* avoid erroring on values from future versions of git */
free(value);
}
@@ -3739,23 +3868,25 @@ void init_merge_options(struct merge_options *opt,
{
const char *merge_verbosity;
memset(opt, 0, sizeof(struct merge_options));
+
opt->repo = repo;
+
+ opt->detect_renames = -1;
+ opt->detect_directory_renames = MERGE_DIRECTORY_RENAMES_CONFLICT;
+ opt->rename_limit = -1;
+
opt->verbosity = 2;
opt->buffer_output = 1;
- opt->diff_rename_limit = -1;
- opt->merge_rename_limit = -1;
+ strbuf_init(&opt->obuf, 0);
+
opt->renormalize = 0;
- opt->diff_detect_rename = -1;
- opt->merge_detect_rename = -1;
- opt->detect_directory_renames = 1;
+
merge_recursive_config(opt);
merge_verbosity = getenv("GIT_MERGE_VERBOSITY");
if (merge_verbosity)
opt->verbosity = strtol(merge_verbosity, NULL, 10);
if (opt->verbosity >= 5)
opt->buffer_output = 0;
- strbuf_init(&opt->obuf, 0);
- string_list_init(&opt->df_conflict_file_set, 1);
}
int parse_merge_opt(struct merge_options *opt, const char *s)
@@ -3765,9 +3896,9 @@ int parse_merge_opt(struct merge_options *opt, const char *s)
if (!s || !*s)
return -1;
if (!strcmp(s, "ours"))
- opt->recursive_variant = MERGE_RECURSIVE_OURS;
+ opt->recursive_variant = MERGE_VARIANT_OURS;
else if (!strcmp(s, "theirs"))
- opt->recursive_variant = MERGE_RECURSIVE_THEIRS;
+ opt->recursive_variant = MERGE_VARIANT_THEIRS;
else if (!strcmp(s, "subtree"))
opt->subtree_shift = "";
else if (skip_prefix(s, "subtree=", &arg))
@@ -3798,16 +3929,16 @@ int parse_merge_opt(struct merge_options *opt, const char *s)
else if (!strcmp(s, "no-renormalize"))
opt->renormalize = 0;
else if (!strcmp(s, "no-renames"))
- opt->merge_detect_rename = 0;
+ opt->detect_renames = 0;
else if (!strcmp(s, "find-renames")) {
- opt->merge_detect_rename = 1;
+ opt->detect_renames = 1;
opt->rename_score = 0;
}
else if (skip_prefix(s, "find-renames=", &arg) ||
skip_prefix(s, "rename-threshold=", &arg)) {
if ((opt->rename_score = parse_rename_score(&arg)) == -1 || *arg != 0)
return -1;
- opt->merge_detect_rename = 1;
+ opt->detect_renames = 1;
}
/*
* Please update $__git_merge_strategy_options in