1 files changed, 0 insertions, 209 deletions
diff --git a/reftable/refname.c b/reftable/refname.c
deleted file mode 100644
index 9573496932..0000000000
--- a/reftable/refname.c
+++ /dev/null
@@ -1,209 +0,0 @@
-/*
-  Copyright 2020 Google LLC
-
-  Use of this source code is governed by a BSD-style
-  license that can be found in the LICENSE file or at
-  https://developers.google.com/open-source/licenses/bsd
-*/
-
-#include "system.h"
-#include "reftable-error.h"
-#include "basics.h"
-#include "refname.h"
-#include "reftable-iterator.h"
-
-struct find_arg {
-	char **names;
-	const char *want;
-};
-
-static int find_name(size_t k, void *arg)
-{
-	struct find_arg *f_arg = arg;
-	return strcmp(f_arg->names[k], f_arg->want) >= 0;
-}
-
-static int modification_has_ref(struct modification *mod, const char *name)
-{
-	struct reftable_ref_record ref = { NULL };
-	int err = 0;
-
-	if (mod->add_len > 0) {
-		struct find_arg arg = {
-			.names = mod->add,
-			.want = name,
-		};
-		int idx = binsearch(mod->add_len, find_name, &arg);
-		if (idx < mod->add_len && !strcmp(mod->add[idx], name)) {
-			return 0;
-		}
-	}
-
-	if (mod->del_len > 0) {
-		struct find_arg arg = {
-			.names = mod->del,
-			.want = name,
-		};
-		int idx = binsearch(mod->del_len, find_name, &arg);
-		if (idx < mod->del_len && !strcmp(mod->del[idx], name)) {
-			return 1;
-		}
-	}
-
-	err = reftable_table_read_ref(&mod->tab, name, &ref);
-	reftable_ref_record_release(&ref);
-	return err;
-}
-
-static void modification_release(struct modification *mod)
-{
-	/* don't delete the strings themselves; they're owned by ref records.
-	 */
-	FREE_AND_NULL(mod->add);
-	FREE_AND_NULL(mod->del);
-	mod->add_len = 0;
-	mod->del_len = 0;
-}
-
-static int modification_has_ref_with_prefix(struct modification *mod,
-					    const char *prefix)
-{
-	struct reftable_iterator it = { NULL };
-	struct reftable_ref_record ref = { NULL };
-	int err = 0;
-
-	if (mod->add_len > 0) {
-		struct find_arg arg = {
-			.names = mod->add,
-			.want = prefix,
-		};
-		int idx = binsearch(mod->add_len, find_name, &arg);
-		if (idx < mod->add_len &&
-		    !strncmp(prefix, mod->add[idx], strlen(prefix)))
-			goto done;
-	}
-	err = reftable_table_seek_ref(&mod->tab, &it, prefix);
-	if (err)
-		goto done;
-
-	while (1) {
-		err = reftable_iterator_next_ref(&it, &ref);
-		if (err)
-			goto done;
-
-		if (mod->del_len > 0) {
-			struct find_arg arg = {
-				.names = mod->del,
-				.want = ref.refname,
-			};
-			int idx = binsearch(mod->del_len, find_name, &arg);
-			if (idx < mod->del_len &&
-			    !strcmp(ref.refname, mod->del[idx])) {
-				continue;
-			}
-		}
-
-		if (strncmp(ref.refname, prefix, strlen(prefix))) {
-			err = 1;
-			goto done;
-		}
-		err = 0;
-		goto done;
-	}
-
-done:
-	reftable_ref_record_release(&ref);
-	reftable_iterator_destroy(&it);
-	return err;
-}
-
-static int validate_refname(const char *name)
-{
-	while (1) {
-		char *next = strchr(name, '/');
-		if (!*name) {
-			return REFTABLE_REFNAME_ERROR;
-		}
-		if (!next) {
-			return 0;
-		}
-		if (next - name == 0 || (next - name == 1 && *name == '.') ||
-		    (next - name == 2 && name[0] == '.' && name[1] == '.'))
-			return REFTABLE_REFNAME_ERROR;
-		name = next + 1;
-	}
-	return 0;
-}
-
-int validate_ref_record_addition(struct reftable_table tab,
-				 struct reftable_ref_record *recs, size_t sz)
-{
-	struct modification mod = {
-		.tab = tab,
-		.add = reftable_calloc(sizeof(char *) * sz),
-		.del = reftable_calloc(sizeof(char *) * sz),
-	};
-	int i = 0;
-	int err = 0;
-	for (; i < sz; i++) {
-		if (reftable_ref_record_is_deletion(&recs[i])) {
-			mod.del[mod.del_len++] = recs[i].refname;
-		} else {
-			mod.add[mod.add_len++] = recs[i].refname;
-		}
-	}
-
-	err = modification_validate(&mod);
-	modification_release(&mod);
-	return err;
-}
-
-static void strbuf_trim_component(struct strbuf *sl)
-{
-	while (sl->len > 0) {
-		int is_slash = (sl->buf[sl->len - 1] == '/');
-		strbuf_setlen(sl, sl->len - 1);
-		if (is_slash)
-			break;
-	}
-}
-
-int modification_validate(struct modification *mod)
-{
-	struct strbuf slashed = STRBUF_INIT;
-	int err = 0;
-	int i = 0;
-	for (; i < mod->add_len; i++) {
-		err = validate_refname(mod->add[i]);
-		if (err)
-			goto done;
-		strbuf_reset(&slashed);
-		strbuf_addstr(&slashed, mod->add[i]);
-		strbuf_addstr(&slashed, "/");
-
-		err = modification_has_ref_with_prefix(mod, slashed.buf);
-		if (err == 0) {
-			err = REFTABLE_NAME_CONFLICT;
-			goto done;
-		}
-		if (err < 0)
-			goto done;
-
-		strbuf_reset(&slashed);
-		strbuf_addstr(&slashed, mod->add[i]);
-		while (slashed.len) {
-			strbuf_trim_component(&slashed);
-			err = modification_has_ref(mod, slashed.buf);
-			if (err == 0) {
-				err = REFTABLE_NAME_CONFLICT;
-				goto done;
-			}
-			if (err < 0)
-				goto done;
-		}
-	}
-	err = 0;
-done:
-	strbuf_release(&slashed);
-	return err;
-}