| /* |
| * switch.c: implement 'switch' feature via WC & RA interfaces. |
| * |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| */ |
| |
| /* ==================================================================== */ |
| |
| |
| |
| /*** Includes. ***/ |
| |
| #include "svn_client.h" |
| #include "svn_error.h" |
| #include "svn_hash.h" |
| #include "svn_time.h" |
| #include "svn_dirent_uri.h" |
| #include "svn_path.h" |
| #include "svn_config.h" |
| #include "svn_pools.h" |
| #include "client.h" |
| |
| #include "svn_private_config.h" |
| #include "private/svn_wc_private.h" |
| |
| |
| /*** Code. ***/ |
| |
| /* This feature is essentially identical to 'svn update' (see |
| ./update.c), but with two differences: |
| |
| - the reporter->finish_report() routine needs to make the server |
| run delta_dirs() on two *different* paths, rather than on two |
| identical paths. |
| |
| - after the update runs, we need to more than just |
| ensure_uniform_revision; we need to rewrite all the entries' |
| URL attributes. |
| */ |
| |
| |
| /* A conflict callback that simply records the conflicted path in BATON. |
| |
| Implements svn_wc_conflict_resolver_func2_t. |
| */ |
| static svn_error_t * |
| record_conflict(svn_wc_conflict_result_t **result, |
| const svn_wc_conflict_description2_t *description, |
| void *baton, |
| apr_pool_t *result_pool, |
| apr_pool_t *scratch_pool) |
| { |
| apr_hash_t *conflicted_paths = baton; |
| |
| svn_hash_sets(conflicted_paths, |
| apr_pstrdup(apr_hash_pool_get(conflicted_paths), |
| description->local_abspath), ""); |
| *result = svn_wc_create_conflict_result(svn_wc_conflict_choose_postpone, |
| NULL, result_pool); |
| return SVN_NO_ERROR; |
| } |
| |
| /* ... |
| |
| Add the paths of any conflict victims to CONFLICTED_PATHS, if that |
| is not null. |
| */ |
| static svn_error_t * |
| switch_internal(svn_revnum_t *result_rev, |
| apr_hash_t *conflicted_paths, |
| const char *local_abspath, |
| const char *anchor_abspath, |
| const char *switch_url, |
| const svn_opt_revision_t *peg_revision, |
| const svn_opt_revision_t *revision, |
| svn_depth_t depth, |
| svn_boolean_t depth_is_sticky, |
| svn_boolean_t ignore_externals, |
| svn_boolean_t allow_unver_obstructions, |
| svn_boolean_t ignore_ancestry, |
| svn_boolean_t *timestamp_sleep, |
| svn_client_ctx_t *ctx, |
| apr_pool_t *pool) |
| { |
| const svn_ra_reporter3_t *reporter; |
| void *report_baton; |
| const char *anchor_url, *target; |
| svn_client__pathrev_t *switch_loc; |
| svn_ra_session_t *ra_session; |
| svn_revnum_t revnum; |
| const char *diff3_cmd; |
| apr_hash_t *wcroot_iprops; |
| apr_array_header_t *inherited_props; |
| svn_boolean_t use_commit_times; |
| const svn_delta_editor_t *switch_editor; |
| void *switch_edit_baton; |
| const char *preserved_exts_str; |
| apr_array_header_t *preserved_exts; |
| svn_boolean_t server_supports_depth; |
| struct svn_client__dirent_fetcher_baton_t dfb; |
| svn_config_t *cfg = ctx->config |
| ? svn_hash_gets(ctx->config, SVN_CONFIG_CATEGORY_CONFIG) |
| : NULL; |
| |
| /* An unknown depth can't be sticky. */ |
| if (depth == svn_depth_unknown) |
| depth_is_sticky = FALSE; |
| |
| /* Do not support the situation of both exclude and switch a target. */ |
| if (depth == svn_depth_exclude) |
| return svn_error_createf(SVN_ERR_UNSUPPORTED_FEATURE, NULL, |
| _("Cannot both exclude and switch a path")); |
| |
| /* Get the external diff3, if any. */ |
| svn_config_get(cfg, &diff3_cmd, SVN_CONFIG_SECTION_HELPERS, |
| SVN_CONFIG_OPTION_DIFF3_CMD, NULL); |
| |
| if (diff3_cmd != NULL) |
| SVN_ERR(svn_path_cstring_to_utf8(&diff3_cmd, diff3_cmd, pool)); |
| |
| /* See if the user wants last-commit timestamps instead of current ones. */ |
| SVN_ERR(svn_config_get_bool(cfg, &use_commit_times, |
| SVN_CONFIG_SECTION_MISCELLANY, |
| SVN_CONFIG_OPTION_USE_COMMIT_TIMES, FALSE)); |
| |
| { |
| svn_boolean_t has_working; |
| SVN_ERR(svn_wc__node_has_working(&has_working, ctx->wc_ctx, local_abspath, |
| pool)); |
| |
| if (has_working) |
| return svn_error_createf(SVN_ERR_UNSUPPORTED_FEATURE, NULL, |
| _("Cannot switch '%s' because it is not in the " |
| "repository yet"), |
| svn_dirent_local_style(local_abspath, pool)); |
| } |
| |
| /* See which files the user wants to preserve the extension of when |
| conflict files are made. */ |
| svn_config_get(cfg, &preserved_exts_str, SVN_CONFIG_SECTION_MISCELLANY, |
| SVN_CONFIG_OPTION_PRESERVED_CF_EXTS, ""); |
| preserved_exts = *preserved_exts_str |
| ? svn_cstring_split(preserved_exts_str, "\n\r\t\v ", FALSE, pool) |
| : NULL; |
| |
| /* Sanity check. Without these, the switch is meaningless. */ |
| SVN_ERR_ASSERT(switch_url && (switch_url[0] != '\0')); |
| |
| if (strcmp(local_abspath, anchor_abspath)) |
| target = svn_dirent_basename(local_abspath, pool); |
| else |
| target = ""; |
| |
| SVN_ERR(svn_wc__node_get_url(&anchor_url, ctx->wc_ctx, anchor_abspath, |
| pool, pool)); |
| if (! anchor_url) |
| return svn_error_createf(SVN_ERR_ENTRY_MISSING_URL, NULL, |
| _("Directory '%s' has no URL"), |
| svn_dirent_local_style(anchor_abspath, pool)); |
| |
| /* We may need to crop the tree if the depth is sticky */ |
| if (depth_is_sticky && depth < svn_depth_infinity) |
| { |
| svn_node_kind_t target_kind; |
| |
| if (depth == svn_depth_exclude) |
| { |
| SVN_ERR(svn_wc_exclude(ctx->wc_ctx, |
| local_abspath, |
| ctx->cancel_func, ctx->cancel_baton, |
| ctx->notify_func2, ctx->notify_baton2, |
| pool)); |
| |
| /* Target excluded, we are done now */ |
| return SVN_NO_ERROR; |
| } |
| |
| SVN_ERR(svn_wc_read_kind2(&target_kind, ctx->wc_ctx, local_abspath, |
| TRUE, TRUE, pool)); |
| |
| if (target_kind == svn_node_dir) |
| SVN_ERR(svn_wc_crop_tree2(ctx->wc_ctx, local_abspath, depth, |
| ctx->cancel_func, ctx->cancel_baton, |
| ctx->notify_func2, ctx->notify_baton2, |
| pool)); |
| } |
| |
| /* Open an RA session to 'source' URL */ |
| SVN_ERR(svn_client__ra_session_from_path2(&ra_session, &switch_loc, |
| switch_url, anchor_abspath, |
| peg_revision, revision, |
| ctx, pool)); |
| |
| /* Disallow a switch operation to change the repository root of the |
| target. */ |
| if (! svn_uri__is_ancestor(switch_loc->repos_root_url, anchor_url)) |
| return svn_error_createf(SVN_ERR_WC_INVALID_SWITCH, NULL, |
| _("'%s'\nis not the same repository as\n'%s'"), |
| anchor_url, switch_loc->repos_root_url); |
| |
| /* If we're not ignoring ancestry, then error out if the switch |
| source and target don't have a common ancestry. |
| |
| ### We're acting on the anchor here, not the target. Is that |
| ### okay? */ |
| if (! ignore_ancestry) |
| { |
| svn_client__pathrev_t *target_base_loc, *yca; |
| |
| SVN_ERR(svn_client__wc_node_get_base(&target_base_loc, local_abspath, |
| ctx->wc_ctx, pool, pool)); |
| |
| if (!target_base_loc) |
| yca = NULL; /* Not versioned */ |
| else |
| { |
| SVN_ERR(svn_client__get_youngest_common_ancestor( |
| &yca, switch_loc, target_base_loc, ra_session, ctx, |
| pool, pool)); |
| } |
| if (! yca) |
| return svn_error_createf(SVN_ERR_CLIENT_UNRELATED_RESOURCES, NULL, |
| _("'%s' shares no common ancestry with '%s'"), |
| switch_url, |
| svn_dirent_local_style(local_abspath, pool)); |
| } |
| |
| wcroot_iprops = apr_hash_make(pool); |
| |
| /* Will the base of LOCAL_ABSPATH require an iprop cache post-switch? |
| If we are switching LOCAL_ABSPATH to the root of the repository then |
| we don't need to cache inherited properties. In all other cases we |
| *might* need to cache iprops. */ |
| if (strcmp(switch_loc->repos_root_url, switch_loc->url) != 0) |
| { |
| svn_boolean_t wc_root; |
| svn_boolean_t needs_iprop_cache = TRUE; |
| |
| SVN_ERR(svn_wc__is_wcroot(&wc_root, ctx->wc_ctx, local_abspath, |
| pool)); |
| |
| /* Switching the WC root to anything but the repos root means |
| we need an iprop cache. */ |
| if (!wc_root) |
| { |
| /* We know we are switching a subtree to something other than the |
| repos root, but if we are unswitching that subtree we don't |
| need an iprops cache. */ |
| const char *target_parent_url; |
| const char *unswitched_url; |
| |
| /* Calculate the URL LOCAL_ABSPATH would have if it was unswitched |
| relative to its parent. */ |
| SVN_ERR(svn_wc__node_get_url(&target_parent_url, ctx->wc_ctx, |
| svn_dirent_dirname(local_abspath, |
| pool), |
| pool, pool)); |
| unswitched_url = svn_path_url_add_component2( |
| target_parent_url, |
| svn_dirent_basename(local_abspath, pool), |
| pool); |
| |
| /* If LOCAL_ABSPATH will be unswitched relative to its parent, then |
| it doesn't need an iprop cache. Note: It doesn't matter if |
| LOCAL_ABSPATH is within a switched subtree, only if it's the |
| *root* of a switched subtree.*/ |
| if (strcmp(unswitched_url, switch_loc->url) == 0) |
| needs_iprop_cache = FALSE; |
| } |
| |
| |
| if (needs_iprop_cache) |
| { |
| SVN_ERR(svn_ra_get_inherited_props(ra_session, &inherited_props, |
| "", switch_loc->rev, pool, |
| pool)); |
| svn_hash_sets(wcroot_iprops, local_abspath, inherited_props); |
| } |
| } |
| |
| SVN_ERR(svn_ra_reparent(ra_session, anchor_url, pool)); |
| |
| /* Fetch the switch (update) editor. If REVISION is invalid, that's |
| okay; the RA driver will call editor->set_target_revision() later on. */ |
| SVN_ERR(svn_ra_has_capability(ra_session, &server_supports_depth, |
| SVN_RA_CAPABILITY_DEPTH, pool)); |
| |
| dfb.ra_session = ra_session; |
| dfb.anchor_url = anchor_url; |
| dfb.target_revision = switch_loc->rev; |
| |
| SVN_ERR(svn_wc__get_switch_editor(&switch_editor, &switch_edit_baton, |
| &revnum, ctx->wc_ctx, anchor_abspath, |
| target, switch_loc->url, wcroot_iprops, |
| use_commit_times, depth, |
| depth_is_sticky, allow_unver_obstructions, |
| server_supports_depth, |
| diff3_cmd, preserved_exts, |
| svn_client__dirent_fetcher, &dfb, |
| conflicted_paths ? record_conflict : NULL, |
| conflicted_paths, |
| NULL, NULL, |
| ctx->cancel_func, ctx->cancel_baton, |
| ctx->notify_func2, ctx->notify_baton2, |
| pool, pool)); |
| |
| /* Tell RA to do an update of URL+TARGET to REVISION; if we pass an |
| invalid revnum, that means RA will use the latest revision. */ |
| SVN_ERR(svn_ra_do_switch3(ra_session, &reporter, &report_baton, |
| switch_loc->rev, |
| target, |
| depth_is_sticky ? depth : svn_depth_unknown, |
| switch_loc->url, |
| FALSE /* send_copyfrom_args */, |
| ignore_ancestry, |
| switch_editor, switch_edit_baton, |
| pool, pool)); |
| |
| /* Past this point, we assume the WC is going to be modified so we will |
| * need to sleep for timestamps. */ |
| *timestamp_sleep = TRUE; |
| |
| /* Drive the reporter structure, describing the revisions within |
| LOCAL_ABSPATH. When this calls reporter->finish_report, the |
| reporter will drive the switch_editor. */ |
| SVN_ERR(svn_wc_crawl_revisions5(ctx->wc_ctx, local_abspath, reporter, |
| report_baton, TRUE, |
| depth, (! depth_is_sticky), |
| (! server_supports_depth), |
| use_commit_times, |
| ctx->cancel_func, ctx->cancel_baton, |
| ctx->notify_func2, ctx->notify_baton2, |
| pool)); |
| |
| /* We handle externals after the switch is complete, so that |
| handling external items (and any errors therefrom) doesn't delay |
| the primary operation. */ |
| if (SVN_DEPTH_IS_RECURSIVE(depth) && (! ignore_externals)) |
| { |
| apr_hash_t *new_externals; |
| apr_hash_t *new_depths; |
| SVN_ERR(svn_wc__externals_gather_definitions(&new_externals, |
| &new_depths, |
| ctx->wc_ctx, local_abspath, |
| depth, pool, pool)); |
| |
| SVN_ERR(svn_client__handle_externals(new_externals, |
| new_depths, |
| switch_loc->repos_root_url, |
| local_abspath, |
| depth, timestamp_sleep, ra_session, |
| ctx, pool)); |
| } |
| |
| /* Let everyone know we're finished here. */ |
| if (ctx->notify_func2) |
| { |
| svn_wc_notify_t *notify |
| = svn_wc_create_notify(anchor_abspath, svn_wc_notify_update_completed, |
| pool); |
| notify->kind = svn_node_none; |
| notify->content_state = notify->prop_state |
| = svn_wc_notify_state_inapplicable; |
| notify->lock_state = svn_wc_notify_lock_state_inapplicable; |
| notify->revision = revnum; |
| ctx->notify_func2(ctx->notify_baton2, notify, pool); |
| } |
| |
| /* If the caller wants the result revision, give it to them. */ |
| if (result_rev) |
| *result_rev = revnum; |
| |
| return SVN_NO_ERROR; |
| } |
| |
| svn_error_t * |
| svn_client__switch_internal(svn_revnum_t *result_rev, |
| const char *path, |
| const char *switch_url, |
| const svn_opt_revision_t *peg_revision, |
| const svn_opt_revision_t *revision, |
| svn_depth_t depth, |
| svn_boolean_t depth_is_sticky, |
| svn_boolean_t ignore_externals, |
| svn_boolean_t allow_unver_obstructions, |
| svn_boolean_t ignore_ancestry, |
| svn_boolean_t *timestamp_sleep, |
| svn_client_ctx_t *ctx, |
| apr_pool_t *pool) |
| { |
| const char *local_abspath, *anchor_abspath; |
| svn_boolean_t acquired_lock; |
| svn_error_t *err, *err1, *err2; |
| apr_hash_t *conflicted_paths |
| = ctx->conflict_func2 ? apr_hash_make(pool) : NULL; |
| |
| SVN_ERR_ASSERT(path); |
| |
| SVN_ERR(svn_dirent_get_absolute(&local_abspath, path, pool)); |
| |
| /* Rely on svn_wc__acquire_write_lock setting ANCHOR_ABSPATH even |
| when it returns SVN_ERR_WC_LOCKED */ |
| err = svn_wc__acquire_write_lock(&anchor_abspath, |
| ctx->wc_ctx, local_abspath, TRUE, |
| pool, pool); |
| if (err && err->apr_err != SVN_ERR_WC_LOCKED) |
| return svn_error_trace(err); |
| |
| acquired_lock = (err == SVN_NO_ERROR); |
| svn_error_clear(err); |
| |
| err1 = switch_internal(result_rev, conflicted_paths, |
| local_abspath, anchor_abspath, |
| switch_url, peg_revision, revision, |
| depth, depth_is_sticky, |
| ignore_externals, |
| allow_unver_obstructions, ignore_ancestry, |
| timestamp_sleep, ctx, pool); |
| |
| /* Give the conflict resolver callback the opportunity to |
| * resolve any conflicts that were raised. */ |
| if (! err1 && ctx->conflict_func2) |
| { |
| err1 = svn_client__resolve_conflicts(NULL, conflicted_paths, ctx, pool); |
| } |
| |
| if (acquired_lock) |
| err2 = svn_wc__release_write_lock(ctx->wc_ctx, anchor_abspath, pool); |
| else |
| err2 = SVN_NO_ERROR; |
| |
| return svn_error_compose_create(err1, err2); |
| } |
| |
| svn_error_t * |
| svn_client_switch3(svn_revnum_t *result_rev, |
| const char *path, |
| const char *switch_url, |
| const svn_opt_revision_t *peg_revision, |
| const svn_opt_revision_t *revision, |
| svn_depth_t depth, |
| svn_boolean_t depth_is_sticky, |
| svn_boolean_t ignore_externals, |
| svn_boolean_t allow_unver_obstructions, |
| svn_boolean_t ignore_ancestry, |
| svn_client_ctx_t *ctx, |
| apr_pool_t *pool) |
| { |
| svn_error_t *err; |
| svn_boolean_t sleep_here = FALSE; |
| |
| if (svn_path_is_url(path)) |
| return svn_error_createf(SVN_ERR_ILLEGAL_TARGET, NULL, |
| _("'%s' is not a local path"), path); |
| |
| err = svn_client__switch_internal(result_rev, path, switch_url, |
| peg_revision, revision, depth, |
| depth_is_sticky, ignore_externals, |
| allow_unver_obstructions, |
| ignore_ancestry, &sleep_here, ctx, pool); |
| |
| /* Sleep to ensure timestamp integrity (we do this regardless of |
| errors in the actual switch operation(s)). */ |
| if (sleep_here) |
| svn_io_sleep_for_timestamps(path, pool); |
| |
| return svn_error_trace(err); |
| } |
