#include "tree-walk.h"
#include "cache-tree.h"
#include "unpack-trees.h"
+#include "dir.h"
#include "builtin.h"
-static struct object_list *trees;
+static int nr_trees;
+static struct tree *trees[MAX_UNPACK_TREES];
static int list_tree(unsigned char *sha1)
{
- struct tree *tree = parse_tree_indirect(sha1);
+ struct tree *tree;
+
+ if (nr_trees >= MAX_UNPACK_TREES)
+ die("I cannot read more than %d trees", MAX_UNPACK_TREES);
+ tree = parse_tree_indirect(sha1);
if (!tree)
return -1;
- object_list_append(&tree->object, &trees);
+ trees[nr_trees++] = tree;
return 0;
}
-static int read_cache_unmerged(void)
-{
- int i;
- struct cache_entry **dst;
- struct cache_entry *last = NULL;
-
- read_cache();
- dst = active_cache;
- for (i = 0; i < active_nr; i++) {
- struct cache_entry *ce = active_cache[i];
- if (ce_stage(ce)) {
- if (last && !strcmp(ce->name, last->name))
- continue;
- cache_tree_invalidate_path(active_cache_tree, ce->name);
- last = ce;
- ce->ce_mode = 0;
- ce->ce_flags &= ~htons(CE_STAGEMASK);
- }
- *dst++ = ce;
- }
- active_nr = dst - active_cache;
- return !!last;
-}
-
static void prime_cache_tree_rec(struct cache_tree *it, struct tree *tree)
{
struct tree_desc desc;
struct name_entry entry;
int cnt;
- memcpy(it->sha1, tree->object.sha1, 20);
- desc.buf = tree->buffer;
- desc.size = tree->size;
+ hashcpy(it->sha1, tree->object.sha1);
+ init_tree_desc(&desc, tree->buffer, tree->size);
cnt = 0;
while (tree_entry(&desc, &entry)) {
if (!S_ISDIR(entry.mode))
static void prime_cache_tree(void)
{
- struct tree *tree = (struct tree *)trees->item;
- if (!tree)
+ if (!nr_trees)
return;
active_cache_tree = cache_tree();
- prime_cache_tree_rec(active_cache_tree, tree);
+ prime_cache_tree_rec(active_cache_tree, trees[0]);
}
-static const char read_tree_usage[] = "git-read-tree (<sha> | [[-m [--aggressive] | --reset | --prefix=<prefix>] [-u | -i]] <sha1> [<sha2> [<sha3>]])";
+static const char read_tree_usage[] = "git read-tree (<sha> | [[-m [--trivial] [--aggressive] | --reset | --prefix=<prefix>] [-u | -i]] [--exclude-per-directory=<gitignore>] [--index-output=<file>] <sha1> [<sha2> [<sha3>]])";
static struct lock_file lock_file;
{
int i, newfd, stage = 0;
unsigned char sha1[20];
+ struct tree_desc t[MAX_UNPACK_TREES];
struct unpack_trees_options opts;
memset(&opts, 0, sizeof(opts));
opts.head_idx = -1;
+ opts.src_index = &the_index;
+ opts.dst_index = &the_index;
- setup_git_directory();
- git_config(git_default_config);
-
- newfd = hold_lock_file_for_update(&lock_file, get_index_file(), 1);
+ git_config(git_default_config, NULL);
- git_config(git_default_config);
+ newfd = hold_locked_index(&lock_file, 1);
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
continue;
}
+ if (!prefixcmp(arg, "--index-output=")) {
+ set_alternate_index_output(arg + 15);
+ continue;
+ }
+
/* "--prefix=<subdirectory>/" means keep the current index
* entries and put the entries from the tree under the
* given subdirectory.
*/
- if (!strncmp(arg, "--prefix=", 9)) {
+ if (!prefixcmp(arg, "--prefix=")) {
if (stage || opts.merge || opts.prefix)
usage(read_tree_usage);
opts.prefix = arg + 9;
continue;
}
+ if (!prefixcmp(arg, "--exclude-per-directory=")) {
+ struct dir_struct *dir;
+
+ if (opts.dir)
+ die("more than one --exclude-per-directory are given.");
+
+ dir = xcalloc(1, sizeof(*opts.dir));
+ dir->show_ignored = 1;
+ dir->exclude_per_dir = arg + 24;
+ opts.dir = dir;
+ /* We do not need to nor want to do read-directory
+ * here; we are merely interested in reusing the
+ * per directory ignore stack mechanism.
+ */
+ continue;
+ }
+
/* using -u and -i at the same time makes no sense */
if (1 < opts.index_only + opts.update)
usage(read_tree_usage);
}
if ((opts.update||opts.index_only) && !opts.merge)
usage(read_tree_usage);
-
- if (opts.prefix) {
- int pfxlen = strlen(opts.prefix);
- int pos;
- if (opts.prefix[pfxlen-1] != '/')
- die("prefix must end with /");
- if (stage != 2)
- die("binding merge takes only one tree");
- pos = cache_name_pos(opts.prefix, pfxlen);
- if (0 <= pos)
- die("corrupt index file");
- pos = -pos-1;
- if (pos < active_nr &&
- !strncmp(active_cache[pos]->name, opts.prefix, pfxlen))
- die("subdirectory '%s' already exists.", opts.prefix);
- pos = cache_name_pos(opts.prefix, pfxlen-1);
- if (0 <= pos)
- die("file '%.*s' already exists.",
- pfxlen-1, opts.prefix);
- }
+ if ((opts.dir && !opts.update))
+ die("--exclude-per-directory is meaningless unless -u");
+ if (opts.merge && !opts.index_only)
+ setup_work_tree();
if (opts.merge) {
if (stage < 2)
break;
case 2:
opts.fn = twoway_merge;
+ opts.initial_checkout = is_cache_unborn();
break;
case 3:
default:
opts.head_idx = 1;
}
- unpack_trees(trees, &opts);
+ for (i = 0; i < nr_trees; i++) {
+ struct tree *tree = trees[i];
+ parse_tree(tree);
+ init_tree_desc(t+i, tree->buffer, tree->size);
+ }
+ if (unpack_trees(nr_trees, t, &opts))
+ return 128;
/*
* When reading only one tree (either the most basic form,
* valid cache-tree because the index must match exactly
* what came from the tree.
*/
- if (trees && trees->item && !opts.prefix && (!opts.merge || (stage == 2))) {
+ if (nr_trees && !opts.prefix && (!opts.merge || (stage == 2))) {
cache_tree_free(&active_cache_tree);
prime_cache_tree();
}
if (write_cache(newfd, active_cache, active_nr) ||
- close(newfd) || commit_lock_file(&lock_file))
+ commit_locked_index(&lock_file))
die("unable to write new index file");
return 0;
}