* The thieves were Alex Riesen and Johannes Schindelin, in June/July 2006
*/
#include "cache.h"
+#include "config.h"
#include "advice.h"
#include "lockfile.h"
#include "cache-tree.h"
#include "dir.h"
#include "submodule.h"
+struct path_hashmap_entry {
+ struct hashmap_entry e;
+ char path[FLEX_ARRAY];
+};
+
+static int path_hashmap_cmp(const void *cmp_data,
+ const void *entry,
+ const void *entry_or_key,
+ const void *keydata)
+{
+ const struct path_hashmap_entry *a = entry;
+ const struct path_hashmap_entry *b = entry_or_key;
+ const char *key = keydata;
+
+ if (ignore_case)
+ return strcasecmp(a->path, key ? key : b->path);
+ else
+ return strcmp(a->path, key ? key : b->path);
+}
+
+static unsigned int path_hash(const char *path)
+{
+ return ignore_case ? strihash(path) : strhash(path);
+}
+
static void flush_output(struct merge_options *o)
{
if (o->buffer_output < 2 && o->obuf.len) {
}
if (!oidcmp(&two->object.oid, &shifted))
return two;
- return lookup_tree(shifted.hash);
+ return lookup_tree(&shifted);
}
static struct commit *make_virtual_commit(struct tree *tree, const char *comment)
struct cache_entry *nce;
nce = refresh_cache_entry(ce, CE_MATCH_REFRESH | CE_MATCH_IGNORE_MISSING);
+ if (!nce)
+ return err(o, _("addinfo_cache failed for path '%s'"), path);
if (nce != ce)
ret = add_cache_entry(nce, options);
}
return NULL;
}
- result = lookup_tree(active_cache_tree->sha1);
+ result = lookup_tree(&active_cache_tree->oid);
return result;
}
struct strbuf *base, const char *path,
unsigned int mode, int stage, void *context)
{
+ struct path_hashmap_entry *entry;
int baselen = base->len;
struct merge_options *o = context;
strbuf_addstr(base, path);
- if (S_ISDIR(mode))
- string_list_insert(&o->current_directory_set, base->buf);
- else
- string_list_insert(&o->current_file_set, base->buf);
+ FLEX_ALLOC_MEM(entry, path, base->buf, base->len);
+ hashmap_entry_init(entry, path_hash(entry->path));
+ hashmap_add(&o->current_file_dir_set, entry);
strbuf_setlen(base, baselen);
return (S_ISDIR(mode) ? READ_TREE_RECURSIVE : 0);
}
-static int get_files_dirs(struct merge_options *o, struct tree *tree)
+static void get_files_dirs(struct merge_options *o, struct tree *tree)
{
- int n;
struct pathspec match_all;
memset(&match_all, 0, sizeof(match_all));
- if (read_tree_recursive(tree, "", 0, 0, &match_all, save_files_dirs, o))
- return 0;
- n = o->current_file_set.nr + o->current_directory_set.nr;
- return n;
+ read_tree_recursive(tree, "", 0, 0, &match_all, save_files_dirs, o);
}
/*
}
e = item->util;
e->stages[ce_stage(ce)].mode = ce->ce_mode;
- hashcpy(e->stages[ce_stage(ce)].oid.hash, ce->sha1);
+ oidcpy(&e->stages[ce_stage(ce)].oid, &ce->oid);
}
return unmerged;
}
-static int string_list_df_name_compare(const void *a, const void *b)
+static int string_list_df_name_compare(const char *one, const char *two)
{
- const struct string_list_item *one = a;
- const struct string_list_item *two = b;
- int onelen = strlen(one->string);
- int twolen = strlen(two->string);
+ int onelen = strlen(one);
+ int twolen = strlen(two);
/*
* Here we only care that entries for D/F conflicts are
* adjacent, in particular with the file of the D/F conflict
* since in other cases any changes in their order due to
* sorting cause no problems for us.
*/
- int cmp = df_name_compare(one->string, onelen, S_IFDIR,
- two->string, twolen, S_IFDIR);
+ int cmp = df_name_compare(one, onelen, S_IFDIR,
+ two, twolen, S_IFDIR);
/*
* Now that 'foo' and 'foo/bar' compare equal, we have to make sure
* that 'foo' comes before 'foo/bar'.
string_list_append(&df_sorted_entries, next->string)->util =
next->util;
}
- qsort(df_sorted_entries.items, entries->nr, sizeof(*entries->items),
- string_list_df_name_compare);
+ df_sorted_entries.cmp = string_list_df_name_compare;
+ string_list_sort(&df_sorted_entries);
string_list_clear(&o->df_conflict_file_set, 1);
for (i = 0; i < df_sorted_entries.nr; i++) {
return renames;
diff_setup(&opts);
- DIFF_OPT_SET(&opts, RECURSIVE);
- DIFF_OPT_CLR(&opts, RENAME_EMPTY);
+ opts.flags.recursive = 1;
+ opts.flags.rename_empty = 0;
opts.detect_rename = DIFF_DETECT_RENAME;
opts.rename_limit = o->merge_rename_limit >= 0 ? o->merge_rename_limit :
o->diff_rename_limit >= 0 ? o->diff_rename_limit :
opts.show_rename_progress = o->show_rename_progress;
opts.output_format = DIFF_FORMAT_NO_OUTPUT;
diff_setup_done(&opts);
- diff_tree_sha1(o_tree->object.oid.hash, tree->object.oid.hash, "", &opts);
+ diff_tree_oid(&o_tree->object.oid, &tree->object.oid, "", &opts);
diffcore_std(&opts);
if (opts.needed_rename_limit > o->needed_rename_limit)
o->needed_rename_limit = opts.needed_rename_limit;
static char *unique_path(struct merge_options *o, const char *path, const char *branch)
{
+ struct path_hashmap_entry *entry;
struct strbuf newpath = STRBUF_INIT;
int suffix = 0;
size_t base_len;
add_flattened_path(&newpath, branch);
base_len = newpath.len;
- while (string_list_has_string(&o->current_file_set, newpath.buf) ||
- string_list_has_string(&o->current_directory_set, newpath.buf) ||
+ while (hashmap_get_from_hash(&o->current_file_dir_set,
+ path_hash(newpath.buf), newpath.buf) ||
(!o->call_depth && file_exists(newpath.buf))) {
strbuf_setlen(&newpath, base_len);
strbuf_addf(&newpath, "_%d", suffix++);
}
- string_list_insert(&o->current_file_set, newpath.buf);
+ FLEX_ALLOC_MEM(entry, path, newpath.buf, newpath.len);
+ hashmap_entry_init(entry, path_hash(entry->path));
+ hashmap_add(&o->current_file_dir_set, entry);
return strbuf_detach(&newpath, NULL);
}
-static int dir_in_way(const char *path, int check_working_copy)
+/**
+ * Check whether a directory in the index is in the way of an incoming
+ * file. Return 1 if so. If check_working_copy is non-zero, also
+ * check the working directory. If empty_ok is non-zero, also return
+ * 0 in the case where the working-tree dir exists but is empty.
+ */
+static int dir_in_way(const char *path, int check_working_copy, int empty_ok)
{
int pos;
struct strbuf dirpath = STRBUF_INIT;
}
strbuf_release(&dirpath);
- return check_working_copy && !lstat(path, &st) && S_ISDIR(st.st_mode);
+ return check_working_copy && !lstat(path, &st) && S_ISDIR(st.st_mode) &&
+ !(empty_ok && is_empty_dir(path));
}
static int was_tracked(const char *path)
name2 = mkpathdup("%s", branch2);
}
- read_mmblob(&orig, one->oid.hash);
- read_mmblob(&src1, a->oid.hash);
- read_mmblob(&src2, b->oid.hash);
+ read_mmblob(&orig, &one->oid);
+ read_mmblob(&src1, &a->oid);
+ read_mmblob(&src2, &b->oid);
merge_status = ll_merge(result_buf, a->path, &orig, base_name,
&src1, name1, &src2, name2, &ll_opts);
return ret;
result->clean = (merge_status == 0);
} else if (S_ISGITLINK(a->mode)) {
- result->clean = merge_submodule(result->oid.hash,
+ result->clean = merge_submodule(&result->oid,
one->path,
- one->oid.hash,
- a->oid.hash,
- b->oid.hash,
+ &one->oid,
+ &a->oid,
+ &b->oid,
!o->call_depth);
} else if (S_ISLNK(a->mode)) {
oidcpy(&result->oid, &a->oid);
}
static int handle_change_delete(struct merge_options *o,
- const char *path,
+ const char *path, const char *old_path,
const struct object_id *o_oid, int o_mode,
- const struct object_id *a_oid, int a_mode,
- const struct object_id *b_oid, int b_mode,
+ const struct object_id *changed_oid,
+ int changed_mode,
+ const char *change_branch,
+ const char *delete_branch,
const char *change, const char *change_past)
{
- char *renamed = NULL;
+ char *alt_path = NULL;
+ const char *update_path = path;
int ret = 0;
- if (dir_in_way(path, !o->call_depth)) {
- renamed = unique_path(o, path, a_oid ? o->branch1 : o->branch2);
+
+ if (dir_in_way(path, !o->call_depth, 0)) {
+ update_path = alt_path = unique_path(o, path, change_branch);
}
if (o->call_depth) {
*/
ret = remove_file_from_cache(path);
if (!ret)
- ret = update_file(o, 0, o_oid, o_mode,
- renamed ? renamed : path);
- } else if (!a_oid) {
- if (!renamed) {
- output(o, 1, _("CONFLICT (%s/delete): %s deleted in %s "
- "and %s in %s. Version %s of %s left in tree."),
- change, path, o->branch1, change_past,
- o->branch2, o->branch2, path);
- ret = update_file(o, 0, b_oid, b_mode, path);
- } else {
- output(o, 1, _("CONFLICT (%s/delete): %s deleted in %s "
- "and %s in %s. Version %s of %s left in tree at %s."),
- change, path, o->branch1, change_past,
- o->branch2, o->branch2, path, renamed);
- ret = update_file(o, 0, b_oid, b_mode, renamed);
- }
+ ret = update_file(o, 0, o_oid, o_mode, update_path);
} else {
- if (!renamed) {
- output(o, 1, _("CONFLICT (%s/delete): %s deleted in %s "
- "and %s in %s. Version %s of %s left in tree."),
- change, path, o->branch2, change_past,
- o->branch1, o->branch1, path);
+ if (!alt_path) {
+ if (!old_path) {
+ output(o, 1, _("CONFLICT (%s/delete): %s deleted in %s "
+ "and %s in %s. Version %s of %s left in tree."),
+ change, path, delete_branch, change_past,
+ change_branch, change_branch, path);
+ } else {
+ output(o, 1, _("CONFLICT (%s/delete): %s deleted in %s "
+ "and %s to %s in %s. Version %s of %s left in tree."),
+ change, old_path, delete_branch, change_past, path,
+ change_branch, change_branch, path);
+ }
} else {
- output(o, 1, _("CONFLICT (%s/delete): %s deleted in %s "
- "and %s in %s. Version %s of %s left in tree at %s."),
- change, path, o->branch2, change_past,
- o->branch1, o->branch1, path, renamed);
- ret = update_file(o, 0, a_oid, a_mode, renamed);
+ if (!old_path) {
+ output(o, 1, _("CONFLICT (%s/delete): %s deleted in %s "
+ "and %s in %s. Version %s of %s left in tree at %s."),
+ change, path, delete_branch, change_past,
+ change_branch, change_branch, path, alt_path);
+ } else {
+ output(o, 1, _("CONFLICT (%s/delete): %s deleted in %s "
+ "and %s to %s in %s. Version %s of %s left in tree at %s."),
+ change, old_path, delete_branch, change_past, path,
+ change_branch, change_branch, path, alt_path);
+ }
}
/*
- * No need to call update_file() on path when !renamed, since
- * that would needlessly touch path. We could call
- * update_file_flags() with update_cache=0 and update_wd=0,
- * but that's a no-op.
+ * No need to call update_file() on path when change_branch ==
+ * o->branch1 && !alt_path, since that would needlessly touch
+ * path. We could call update_file_flags() with update_cache=0
+ * and update_wd=0, but that's a no-op.
*/
+ if (change_branch != o->branch1 || alt_path)
+ ret = update_file(o, 0, changed_oid, changed_mode, update_path);
}
- free(renamed);
+ free(alt_path);
return ret;
}
static int conflict_rename_delete(struct merge_options *o,
struct diff_filepair *pair,
const char *rename_branch,
- const char *other_branch)
+ const char *delete_branch)
{
const struct diff_filespec *orig = pair->one;
const struct diff_filespec *dest = pair->two;
- const struct object_id *a_oid = NULL;
- const struct object_id *b_oid = NULL;
- int a_mode = 0;
- int b_mode = 0;
-
- if (rename_branch == o->branch1) {
- a_oid = &dest->oid;
- a_mode = dest->mode;
- } else {
- b_oid = &dest->oid;
- b_mode = dest->mode;
- }
if (handle_change_delete(o,
o->call_depth ? orig->path : dest->path,
+ o->call_depth ? NULL : orig->path,
&orig->oid, orig->mode,
- a_oid, a_mode,
- b_oid, b_mode,
+ &dest->oid, dest->mode,
+ rename_branch, delete_branch,
_("rename"), _("renamed")))
return -1;
remove_file(o, 0, rename->path, 0);
dst_name = unique_path(o, rename->path, cur_branch);
} else {
- if (dir_in_way(rename->path, !o->call_depth)) {
+ if (dir_in_way(rename->path, !o->call_depth, 0)) {
dst_name = unique_path(o, rename->path, cur_branch);
output(o, 1, _("%s is a directory in %s adding as %s instead"),
rename->path, other_branch, dst_name);
branch1 = o->branch1;
branch2 = o->branch2;
} else {
- struct rename *tmp;
renames1 = b_renames;
renames2Dst = &a_by_dst;
branch1 = o->branch2;
branch2 = o->branch1;
- tmp = ren2;
- ren2 = ren1;
- ren1 = tmp;
+ SWAP(ren2, ren1);
}
if (ren1->processed)
* performed. Comparison can be skipped if both files are
* unchanged since their sha1s have already been compared.
*/
- if (renormalize_buffer(path, o.buf, o.len, &o) |
- renormalize_buffer(path, a.buf, a.len, &a))
+ if (renormalize_buffer(&the_index, path, o.buf, o.len, &o) |
+ renormalize_buffer(&the_index, path, a.buf, a.len, &a))
ret = (o.len == a.len && !memcmp(o.buf, a.buf, o.len));
error_return:
struct object_id *a_oid, int a_mode,
struct object_id *b_oid, int b_mode)
{
+ const char *modify_branch, *delete_branch;
+ struct object_id *changed_oid;
+ int changed_mode;
+
+ if (a_oid) {
+ modify_branch = o->branch1;
+ delete_branch = o->branch2;
+ changed_oid = a_oid;
+ changed_mode = a_mode;
+ } else {
+ modify_branch = o->branch2;
+ delete_branch = o->branch1;
+ changed_oid = b_oid;
+ changed_mode = b_mode;
+ }
+
return handle_change_delete(o,
- path,
+ path, NULL,
o_oid, o_mode,
- a_oid, a_mode,
- b_oid, b_mode,
+ changed_oid, changed_mode,
+ modify_branch, delete_branch,
_("modify"), _("modified"));
}
o->branch2 == rename_conflict_info->branch1) ?
pair1->two->path : pair1->one->path;
- if (dir_in_way(path, !o->call_depth))
+ if (dir_in_way(path, !o->call_depth,
+ S_ISGITLINK(pair1->two->mode)))
df_conflict_remains = 1;
}
if (merge_file_special_markers(o, &one, &a, &b,
oid = b_oid;
conf = _("directory/file");
}
- if (dir_in_way(path, !o->call_depth)) {
+ if (dir_in_way(path,
+ !o->call_depth && !S_ISGITLINK(a_mode),
+ 0)) {
char *new_path = unique_path(o, path, add_branch);
clean_merge = 0;
output(o, 1, _("CONFLICT (%s): There is a directory with name %s in %s. "
}
if (oid_eq(&common->object.oid, &merge->object.oid)) {
- output(o, 0, _("Already up-to-date!"));
+ output(o, 0, _("Already up to date!"));
*result = head;
return 1;
}
if (unmerged_cache()) {
struct string_list *entries, *re_head, *re_merge;
int i;
- string_list_clear(&o->current_file_set, 1);
- string_list_clear(&o->current_directory_set, 1);
+ /*
+ * Only need the hashmap while processing entries, so
+ * initialize it here and free it when we are done running
+ * through the entries. Keeping it in the merge_options as
+ * opposed to decaring a local hashmap is for convenience
+ * so that we don't have to pass it to around.
+ */
+ hashmap_init(&o->current_file_dir_set, path_hashmap_cmp, NULL, 512);
get_files_dirs(o, head);
get_files_dirs(o, merge);
re_merge = get_renames(o, merge, common, head, merge, entries);
clean = process_renames(o, re_head, re_merge);
if (clean < 0)
- return clean;
+ goto cleanup;
for (i = entries->nr-1; 0 <= i; i--) {
const char *path = entries->items[i].string;
struct stage_data *e = entries->items[i].util;
int ret = process_entry(o, path, e);
if (!ret)
clean = 0;
- else if (ret < 0)
- return ret;
+ else if (ret < 0) {
+ clean = ret;
+ goto cleanup;
+ }
}
}
for (i = 0; i < entries->nr; i++) {
entries->items[i].string);
}
+cleanup:
string_list_clear(re_merge, 0);
string_list_clear(re_head, 0);
string_list_clear(entries, 1);
+ hashmap_free(&o->current_file_dir_set, 1);
+
free(re_merge);
free(re_head);
free(entries);
+
+ if (clean < 0)
+ return clean;
}
else
clean = 1;
/* if there is no common ancestor, use an empty tree */
struct tree *tree;
- tree = lookup_tree(EMPTY_TREE_SHA1_BIN);
+ tree = lookup_tree(&empty_tree_oid);
merged_common_ancestors = make_virtual_commit(tree, "ancestor");
}
{
struct object *object;
- object = deref_tag(parse_object(oid->hash), name, strlen(name));
+ object = deref_tag(parse_object(oid), name, strlen(name));
if (!object)
return NULL;
if (object->type == OBJ_TREE)
struct commit **result)
{
int clean;
- struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
+ struct lock_file lock = LOCK_INIT;
struct commit *head_commit = get_ref(head, o->branch1);
struct commit *next_commit = get_ref(merge, o->branch2);
struct commit_list *ca = NULL;
}
}
- hold_locked_index(lock, 1);
+ hold_locked_index(&lock, LOCK_DIE_ON_ERROR);
clean = merge_recursive(o, head_commit, next_commit, ca,
result);
if (clean < 0)
return clean;
if (active_cache_changed &&
- write_locked_index(&the_index, lock, COMMIT_LOCK))
+ write_locked_index(&the_index, &lock, COMMIT_LOCK))
return err(o, _("Unable to write index."));
return clean ? 0 : 1;
void init_merge_options(struct merge_options *o)
{
+ const char *merge_verbosity;
memset(o, 0, sizeof(struct merge_options));
o->verbosity = 2;
o->buffer_output = 1;
o->renormalize = 0;
o->detect_rename = 1;
merge_recursive_config(o);
- if (getenv("GIT_MERGE_VERBOSITY"))
- o->verbosity =
- strtol(getenv("GIT_MERGE_VERBOSITY"), NULL, 10);
+ merge_verbosity = getenv("GIT_MERGE_VERBOSITY");
+ if (merge_verbosity)
+ o->verbosity = strtol(merge_verbosity, NULL, 10);
if (o->verbosity >= 5)
o->buffer_output = 0;
strbuf_init(&o->obuf, 0);
- string_list_init(&o->current_file_set, 1);
- string_list_init(&o->current_directory_set, 1);
string_list_init(&o->df_conflict_file_set, 1);
}
o->xdl_opts |= value;
}
else if (!strcmp(s, "ignore-space-change"))
- o->xdl_opts |= XDF_IGNORE_WHITESPACE_CHANGE;
+ DIFF_XDL_SET(o, IGNORE_WHITESPACE_CHANGE);
else if (!strcmp(s, "ignore-all-space"))
- o->xdl_opts |= XDF_IGNORE_WHITESPACE;
+ DIFF_XDL_SET(o, IGNORE_WHITESPACE);
else if (!strcmp(s, "ignore-space-at-eol"))
- o->xdl_opts |= XDF_IGNORE_WHITESPACE_AT_EOL;
+ DIFF_XDL_SET(o, IGNORE_WHITESPACE_AT_EOL);
+ else if (!strcmp(s, "ignore-cr-at-eol"))
+ DIFF_XDL_SET(o, IGNORE_CR_AT_EOL);
else if (!strcmp(s, "renormalize"))
o->renormalize = 1;
else if (!strcmp(s, "no-renormalize"))