summaryrefslogtreecommitdiff
path: root/builtin-read-tree.c
diff options
context:
space:
mode:
Diffstat (limited to 'builtin-read-tree.c')
-rw-r--r--builtin-read-tree.c274
1 files changed, 0 insertions, 274 deletions
diff --git a/builtin-read-tree.c b/builtin-read-tree.c
deleted file mode 100644
index 8ba436dbac..0000000000
--- a/builtin-read-tree.c
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- * GIT - The information manager from hell
- *
- * Copyright (C) Linus Torvalds, 2005
- */
-
-#include "cache.h"
-#include "object.h"
-#include "tree.h"
-#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 list_tree(unsigned char *sha1)
-{
- struct tree *tree = parse_tree_indirect(sha1);
- if (!tree)
- return -1;
- object_list_append(&tree->object, &trees);
- 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;
-
- hashcpy(it->sha1, tree->object.sha1);
- desc.buf = tree->buffer;
- desc.size = tree->size;
- cnt = 0;
- while (tree_entry(&desc, &entry)) {
- if (!S_ISDIR(entry.mode))
- cnt++;
- else {
- struct cache_tree_sub *sub;
- struct tree *subtree = lookup_tree(entry.sha1);
- if (!subtree->object.parsed)
- parse_tree(subtree);
- sub = cache_tree_sub(it, entry.path);
- sub->cache_tree = cache_tree();
- prime_cache_tree_rec(sub->cache_tree, subtree);
- cnt += sub->cache_tree->entry_count;
- }
- }
- it->entry_count = cnt;
-}
-
-static void prime_cache_tree(void)
-{
- struct tree *tree = (struct tree *)trees->item;
- if (!tree)
- return;
- active_cache_tree = cache_tree();
- prime_cache_tree_rec(active_cache_tree, tree);
-
-}
-
-static const char read_tree_usage[] = "git-read-tree (<sha> | [[-m [--aggressive] | --reset | --prefix=<prefix>] [-u | -i]] [--exclude-per-directory=<gitignore>] <sha1> [<sha2> [<sha3>]])";
-
-static struct lock_file lock_file;
-
-int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
-{
- int i, newfd, stage = 0;
- unsigned char sha1[20];
- struct unpack_trees_options opts;
-
- memset(&opts, 0, sizeof(opts));
- opts.head_idx = -1;
-
- 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);
-
- for (i = 1; i < argc; i++) {
- const char *arg = argv[i];
-
- /* "-u" means "update", meaning that a merge will update
- * the working tree.
- */
- if (!strcmp(arg, "-u")) {
- opts.update = 1;
- continue;
- }
-
- if (!strcmp(arg, "-v")) {
- opts.verbose_update = 1;
- continue;
- }
-
- /* "-i" means "index only", meaning that a merge will
- * not even look at the working tree.
- */
- if (!strcmp(arg, "-i")) {
- opts.index_only = 1;
- 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 (stage || opts.merge || opts.prefix)
- usage(read_tree_usage);
- opts.prefix = arg + 9;
- opts.merge = 1;
- stage = 1;
- if (read_cache_unmerged())
- die("you need to resolve your current index first");
- continue;
- }
-
- /* This differs from "-m" in that we'll silently ignore
- * unmerged entries and overwrite working tree files that
- * correspond to them.
- */
- if (!strcmp(arg, "--reset")) {
- if (stage || opts.merge || opts.prefix)
- usage(read_tree_usage);
- opts.reset = 1;
- opts.merge = 1;
- stage = 1;
- read_cache_unmerged();
- continue;
- }
-
- if (!strcmp(arg, "--trivial")) {
- opts.trivial_merges_only = 1;
- continue;
- }
-
- if (!strcmp(arg, "--aggressive")) {
- opts.aggressive = 1;
- continue;
- }
-
- /* "-m" stands for "merge", meaning we start in stage 1 */
- if (!strcmp(arg, "-m")) {
- if (stage || opts.merge || opts.prefix)
- usage(read_tree_usage);
- if (read_cache_unmerged())
- die("you need to resolve your current index first");
- stage = 1;
- opts.merge = 1;
- continue;
- }
-
- if (!strncmp(arg, "--exclude-per-directory=", 24)) {
- struct dir_struct *dir;
-
- if (opts.dir)
- die("more than one --exclude-per-directory are given.");
-
- dir = calloc(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 (get_sha1(arg, sha1))
- die("Not a valid object name %s", arg);
- if (list_tree(sha1) < 0)
- die("failed to unpack tree object %s", arg);
- stage++;
- }
- if ((opts.update||opts.index_only) && !opts.merge)
- usage(read_tree_usage);
- if ((opts.dir && !opts.update))
- die("--exclude-per-directory is meaningless unless -u");
-
- 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.merge) {
- if (stage < 2)
- die("just how do you expect me to merge %d trees?", stage-1);
- switch (stage - 1) {
- case 1:
- opts.fn = opts.prefix ? bind_merge : oneway_merge;
- break;
- case 2:
- opts.fn = twoway_merge;
- break;
- case 3:
- default:
- opts.fn = threeway_merge;
- cache_tree_free(&active_cache_tree);
- break;
- }
-
- if (stage - 1 >= 3)
- opts.head_idx = stage - 2;
- else
- opts.head_idx = 1;
- }
-
- unpack_trees(trees, &opts);
-
- /*
- * When reading only one tree (either the most basic form,
- * "-m ent" or "--reset ent" form), we can obtain a fully
- * valid cache-tree because the index must match exactly
- * what came from the tree.
- */
- if (trees && trees->item && !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))
- die("unable to write new index file");
- return 0;
-}
generated by cgit v1.2.3 (git 2.46.0) at 2025-11-28 09:52:16 +0000