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/*
* relocate.c: do wc repos relocation
*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
* ====================================================================
*/
#include "svn_wc.h"
#include "svn_error.h"
#include "svn_pools.h"
#include "svn_dirent_uri.h"
#include "svn_path.h"
#include "wc.h"
#include "props.h"
#include "svn_private_config.h"
/* If the components of RELPATH exactly match (after being
URI-encoded) the final components of URL, return a copy of URL
minus those components allocated in RESULT_POOL; otherwise, return
NULL. */
static const char *
url_remove_final_relpath(const char *url,
const char *relpath,
apr_pool_t *result_pool,
apr_pool_t *scratch_pool)
{
char *result = apr_pstrdup(result_pool, url);
char *result_end;
const char *relpath_end;
SVN_ERR_ASSERT_NO_RETURN(svn_path_is_url(url));
SVN_ERR_ASSERT_NO_RETURN(svn_relpath_is_canonical(relpath));
if (relpath[0] == 0)
return result;
relpath = svn_path_uri_encode(relpath, scratch_pool);
result_end = result + strlen(result) - 1;
relpath_end = relpath + strlen(relpath) - 1;
while (relpath_end >= relpath)
{
if (*result_end != *relpath_end)
return NULL;
relpath_end--;
result_end--;
}
if (*result_end != '/')
return NULL;
*result_end = 0;
return result;
}
svn_error_t *
svn_wc_relocate4(svn_wc_context_t *wc_ctx,
const char *local_abspath,
const char *from,
const char *to,
svn_wc_relocation_validator3_t validator,
void *validator_baton,
apr_pool_t *scratch_pool)
{
svn_wc__db_kind_t kind;
const char *repos_relpath;
const char *old_repos_root, *old_url;
const char *new_repos_root, *new_url;
size_t from_len;
size_t old_url_len;
const char *uuid;
svn_boolean_t is_wc_root;
SVN_ERR(svn_wc__strictly_is_wc_root(&is_wc_root, wc_ctx, local_abspath,
scratch_pool));
if (! is_wc_root)
{
const char *wcroot_abspath;
svn_error_t *err;
err = svn_wc__db_get_wcroot(&wcroot_abspath, wc_ctx->db,
local_abspath, scratch_pool, scratch_pool);
if (err)
{
svn_error_clear(err);
return svn_error_createf(
SVN_ERR_WC_INVALID_OP_ON_CWD, NULL,
_("Cannot relocate '%s' as it is not the root of a working copy"),
svn_dirent_local_style(local_abspath, scratch_pool));
}
else
{
return svn_error_createf(
SVN_ERR_WC_INVALID_OP_ON_CWD, NULL,
_("Cannot relocate '%s' as it is not the root of a working copy; "
"try relocating '%s' instead"),
svn_dirent_local_style(local_abspath, scratch_pool),
svn_dirent_local_style(wcroot_abspath, scratch_pool));
}
}
SVN_ERR(svn_wc__db_read_info(NULL, &kind, NULL, &repos_relpath,
&old_repos_root, &uuid,
NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL,
wc_ctx->db, local_abspath, scratch_pool,
scratch_pool));
if (kind != svn_wc__db_kind_dir)
return svn_error_create(SVN_ERR_CLIENT_INVALID_RELOCATION, NULL,
_("Cannot relocate a single file"));
old_url = svn_path_url_add_component2(old_repos_root, repos_relpath,
scratch_pool);
old_url_len = strlen(old_url);
from_len = strlen(from);
if ((from_len > old_url_len) || (strncmp(old_url, from, strlen(from)) != 0))
return svn_error_createf(SVN_ERR_WC_INVALID_RELOCATION, NULL,
_("Invalid source URL prefix: '%s' (does not "
"overlap target's URL '%s')"),
from, old_url);
if (old_url_len == from_len)
new_url = to;
else
new_url = apr_pstrcat(scratch_pool, to, old_url + from_len, (char *)NULL);
if (! svn_path_is_url(new_url))
return svn_error_createf(SVN_ERR_WC_INVALID_RELOCATION, NULL,
_("Invalid relocation destination: '%s' "
"(not a URL)"), new_url);
new_repos_root = url_remove_final_relpath(new_url, repos_relpath,
scratch_pool, scratch_pool);
if (!new_repos_root)
return svn_error_createf(SVN_ERR_WC_INVALID_RELOCATION, NULL,
_("Invalid relocation destination: '%s' "
"(does not point to target)" ), new_url);
SVN_ERR(validator(validator_baton, uuid, new_url, new_repos_root,
scratch_pool));
return svn_error_trace(svn_wc__db_global_relocate(wc_ctx->db, local_abspath,
new_repos_root,
scratch_pool));
}
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