static void chmod_path(int flip, const char *path) { int pos; struct cache_entry *ce; unsigned int mode; pos = cache_name_pos(path, strlen(path)); if (pos < 0) goto fail; ce = active_cache[pos]; mode = ce->ce_mode; if (!S_ISREG(mode)) goto fail; switch (flip) { case '+': ce->ce_mode |= 0111; break; case '-': ce->ce_mode &= ~0111; break; default: goto fail; } cache_tree_invalidate_path(&the_index, path); ce->ce_flags |= CE_UPDATE_IN_BASE; active_cache_changed |= CE_ENTRY_CHANGED; report("chmod %cx '%s'", flip, path); return; fail: die("git update-index: cannot chmod %cx '%s'", flip, path); }
static void invalidate_ce_path(const struct cache_entry *ce, struct unpack_trees_options *o) { if (!ce) return; cache_tree_invalidate_path(o->src_index, ce->name); untracked_cache_invalidate_path(o->src_index, ce->name); }
static int mark_ce_flags(const char *path, int flag, int mark) { int namelen = strlen(path); int pos = cache_name_pos(path, namelen); if (0 <= pos) { if (mark) active_cache[pos]->ce_flags |= flag; else active_cache[pos]->ce_flags &= ~flag; cache_tree_invalidate_path(active_cache_tree, path); active_cache_changed = 1; return 0; } return -1; }
static int mark_ce_flags(const char *path, int flag, int mark) { int namelen = strlen(path); int pos = cache_name_pos(path, namelen); if (0 <= pos) { if (mark) active_cache[pos]->ce_flags |= flag; else active_cache[pos]->ce_flags &= ~flag; active_cache[pos]->ce_flags |= CE_UPDATE_IN_BASE; cache_tree_invalidate_path(&the_index, path); active_cache_changed |= CE_ENTRY_CHANGED; return 0; } return -1; }
void cache_tree_invalidate_path(struct cache_tree *it, const char *path) { /* a/b/c * ==> invalidate self * ==> find "a", have it invalidate "b/c" * a * ==> invalidate self * ==> if "a" exists as a subtree, remove it. */ const char *slash; int namelen; struct cache_tree_sub *down; #if DEBUG fprintf(stderr, "cache-tree invalidate <%s>\n", path); #endif if (!it) return; slash = strchr(path, '/'); it->entry_count = -1; if (!slash) { int pos; namelen = strlen(path); pos = subtree_pos(it, path, namelen); if (0 <= pos) { cache_tree_free(&it->down[pos]->cache_tree); free(it->down[pos]); /* 0 1 2 3 4 5 * ^ ^subtree_nr = 6 * pos * move 4 and 5 up one place (2 entries) * 2 = 6 - 3 - 1 = subtree_nr - pos - 1 */ memmove(it->down+pos, it->down+pos+1, sizeof(struct cache_tree_sub *) * (it->subtree_nr - pos - 1)); it->subtree_nr--; } return; } namelen = slash - path; down = find_subtree(it, path, namelen, 0); if (down) cache_tree_invalidate_path(down->cache_tree, slash + 1); }
static int mark_valid(const char *path) { int namelen = strlen(path); int pos = cache_name_pos(path, namelen); if (0 <= pos) { switch (mark_valid_only) { case MARK_VALID: active_cache[pos]->ce_flags |= CE_VALID; break; case UNMARK_VALID: active_cache[pos]->ce_flags &= ~CE_VALID; break; } cache_tree_invalidate_path(active_cache_tree, path); active_cache_changed = 1; return 0; } return -1; }
/* * Prepare a dummy commit that represents the work tree (or staged) item. * Note that annotating work tree item never works in the reverse. */ static struct commit *fake_working_tree_commit(struct diff_options *opt, const char *path, const char *contents_from) { struct commit *commit; struct blame_origin *origin; struct commit_list **parent_tail, *parent; struct object_id head_oid; struct strbuf buf = STRBUF_INIT; const char *ident; time_t now; int size, len; struct cache_entry *ce; unsigned mode; struct strbuf msg = STRBUF_INIT; read_cache(); time(&now); commit = alloc_commit_node(); commit->object.parsed = 1; commit->date = now; parent_tail = &commit->parents; if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_oid.hash, NULL)) die("no such ref: HEAD"); parent_tail = append_parent(parent_tail, &head_oid); append_merge_parents(parent_tail); verify_working_tree_path(commit, path); origin = make_origin(commit, path); ident = fmt_ident("Not Committed Yet", "not.committed.yet", NULL, 0); strbuf_addstr(&msg, "tree 0000000000000000000000000000000000000000\n"); for (parent = commit->parents; parent; parent = parent->next) strbuf_addf(&msg, "parent %s\n", oid_to_hex(&parent->item->object.oid)); strbuf_addf(&msg, "author %s\n" "committer %s\n\n" "Version of %s from %s\n", ident, ident, path, (!contents_from ? path : (!strcmp(contents_from, "-") ? "standard input" : contents_from))); set_commit_buffer_from_strbuf(commit, &msg); if (!contents_from || strcmp("-", contents_from)) { struct stat st; const char *read_from; char *buf_ptr; unsigned long buf_len; if (contents_from) { if (stat(contents_from, &st) < 0) die_errno("Cannot stat '%s'", contents_from); read_from = contents_from; } else { if (lstat(path, &st) < 0) die_errno("Cannot lstat '%s'", path); read_from = path; } mode = canon_mode(st.st_mode); switch (st.st_mode & S_IFMT) { case S_IFREG: if (DIFF_OPT_TST(opt, ALLOW_TEXTCONV) && textconv_object(read_from, mode, &null_oid, 0, &buf_ptr, &buf_len)) strbuf_attach(&buf, buf_ptr, buf_len, buf_len + 1); else if (strbuf_read_file(&buf, read_from, st.st_size) != st.st_size) die_errno("cannot open or read '%s'", read_from); break; case S_IFLNK: if (strbuf_readlink(&buf, read_from, st.st_size) < 0) die_errno("cannot readlink '%s'", read_from); break; default: die("unsupported file type %s", read_from); } } else { /* Reading from stdin */ mode = 0; if (strbuf_read(&buf, 0, 0) < 0) die_errno("failed to read from stdin"); } convert_to_git(path, buf.buf, buf.len, &buf, 0); origin->file.ptr = buf.buf; origin->file.size = buf.len; pretend_sha1_file(buf.buf, buf.len, OBJ_BLOB, origin->blob_oid.hash); /* * Read the current index, replace the path entry with * origin->blob_sha1 without mucking with its mode or type * bits; we are not going to write this index out -- we just * want to run "diff-index --cached". */ discard_cache(); read_cache(); len = strlen(path); if (!mode) { int pos = cache_name_pos(path, len); if (0 <= pos) mode = active_cache[pos]->ce_mode; else /* Let's not bother reading from HEAD tree */ mode = S_IFREG | 0644; } size = cache_entry_size(len); ce = xcalloc(1, size); oidcpy(&ce->oid, &origin->blob_oid); memcpy(ce->name, path, len); ce->ce_flags = create_ce_flags(0); ce->ce_namelen = len; ce->ce_mode = create_ce_mode(mode); add_cache_entry(ce, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE); cache_tree_invalidate_path(&the_index, path); return commit; }