contrib/subversion/subversion/libsvn_client/copy_foreign.c

   1 /*
   2  * copy_foreign.c:  copy from other repository support.
   3  *
   4  * ====================================================================
   5  *    Licensed to the Apache Software Foundation (ASF) under one
   6  *    or more contributor license agreements.  See the NOTICE file
   7  *    distributed with this work for additional information
   8  *    regarding copyright ownership.  The ASF licenses this file
   9  *    to you under the Apache License, Version 2.0 (the
  10  *    "License"); you may not use this file except in compliance
  11  *    with the License.  You may obtain a copy of the License at
  12  *
  13  *      http://www.apache.org/licenses/LICENSE-2.0
  14  *
  15  *    Unless required by applicable law or agreed to in writing,
  16  *    software distributed under the License is distributed on an
  17  *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  18  *    KIND, either express or implied.  See the License for the
  19  *    specific language governing permissions and limitations
  20  *    under the License.
  21  * ====================================================================
  22  */
  23
  24 /* ==================================================================== */
  25
  26 /*** Includes. ***/
  27
  28 #include <string.h>
  29 #include "svn_hash.h"
  30 #include "svn_client.h"
  31 #include "svn_delta.h"
  32 #include "svn_dirent_uri.h"
  33 #include "svn_error.h"
  34 #include "svn_error_codes.h"
  35 #include "svn_path.h"
  36 #include "svn_pools.h"
  37 #include "svn_props.h"
  38 #include "svn_ra.h"
  39 #include "svn_wc.h"
  40
  41 #include <apr_md5.h>
  42
  43 #include "client.h"
  44 #include "private/svn_subr_private.h"
  45 #include "private/svn_wc_private.h"
  46 #include "svn_private_config.h"
  47
  48 struct edit_baton_t
  49 {
  50   apr_pool_t *pool;
  51   const char *anchor_abspath;
  52
  53   svn_wc_context_t *wc_ctx;
  54   svn_wc_notify_func2_t notify_func;
  55   void *notify_baton;
  56 };
  57
  58 struct dir_baton_t
  59 {
  60   apr_pool_t *pool;
  61
  62   struct dir_baton_t *pb;
  63   struct edit_baton_t *eb;
  64
  65   const char *local_abspath;
  66
  67   svn_boolean_t created;
  68   apr_hash_t *properties;
  69
  70   int users;
  71 };
  72
  73 /* svn_delta_editor_t function */
  74 static svn_error_t *
  75 edit_open(void *edit_baton,
  76           svn_revnum_t base_revision,
  77           apr_pool_t *result_pool,
  78           void **root_baton)
  79 {
  80   struct edit_baton_t *eb = edit_baton;
  81   apr_pool_t *dir_pool = svn_pool_create(eb->pool);
  82   struct dir_baton_t *db = apr_pcalloc(dir_pool, sizeof(*db));
  83
  84   db->pool = dir_pool;
  85   db->eb = eb;
  86   db->users = 1;
  87   db->local_abspath = eb->anchor_abspath;
  88
  89   SVN_ERR(svn_io_make_dir_recursively(eb->anchor_abspath, dir_pool));
  90
  91   *root_baton = db;
  92
  93   return SVN_NO_ERROR;
  94 }
  95
  96 /* svn_delta_editor_t function */
  97 static svn_error_t *
  98 edit_close(void *edit_baton,
  99            apr_pool_t *scratch_pool)
 100 {
 101   return SVN_NO_ERROR;
 102 }
 103
 104 static svn_error_t *
 105 dir_add(const char *path,
 106         void *parent_baton,
 107         const char *copyfrom_path,
 108         svn_revnum_t copyfrom_revision,
 109         apr_pool_t *result_pool,
 110         void **child_baton)
 111 {
 112   struct dir_baton_t *pb = parent_baton;
 113   struct edit_baton_t *eb = pb->eb;
 114   apr_pool_t *dir_pool = svn_pool_create(pb->pool);
 115   struct dir_baton_t *db = apr_pcalloc(dir_pool, sizeof(*db));
 116   svn_boolean_t under_root;
 117
 118   pb->users++;
 119
 120   db->pb = pb;
 121   db->eb = pb->eb;
 122   db->pool = dir_pool;
 123   db->users = 1;
 124
 125   SVN_ERR(svn_dirent_is_under_root(&under_root, &db->local_abspath,
 126                                    eb->anchor_abspath, path, db->pool));
 127   if (! under_root)
 128     {
 129       return svn_error_createf(
 130                     SVN_ERR_WC_OBSTRUCTED_UPDATE, NULL,
 131                     _("Path '%s' is not in the working copy"),
 132                     svn_dirent_local_style(path, db->pool));
 133     }
 134
 135   SVN_ERR(svn_io_make_dir_recursively(db->local_abspath, db->pool));
 136
 137   *child_baton = db;
 138   return SVN_NO_ERROR;
 139 }
 140
 141 static svn_error_t *
 142 dir_change_prop(void *dir_baton,
 143                 const char *name,
 144                 const svn_string_t *value,
 145                 apr_pool_t *scratch_pool)
 146 {
 147   struct dir_baton_t *db = dir_baton;
 148   struct edit_baton_t *eb = db->eb;
 149   svn_prop_kind_t prop_kind;
 150
 151   prop_kind = svn_property_kind2(name);
 152
 153   if (prop_kind != svn_prop_regular_kind
 154       || ! strcmp(name, SVN_PROP_MERGEINFO))
 155     {
 156       /* We can't handle DAV, ENTRY and merge specific props here */
 157       return SVN_NO_ERROR;
 158     }
 159
 160   if (! db->created)
 161     {
 162       /* We can still store them in the hash for immediate addition
 163          with the svn_wc_add_from_disk2() call */
 164       if (! db->properties)
 165         db->properties = apr_hash_make(db->pool);
 166
 167       if (value != NULL)
 168         svn_hash_sets(db->properties, apr_pstrdup(db->pool, name),
 169                       svn_string_dup(value, db->pool));
 170     }
 171   else
 172     {
 173       /* We have already notified for this directory, so don't do that again */
 174       SVN_ERR(svn_wc_prop_set4(eb->wc_ctx, db->local_abspath, name, value,
 175                                svn_depth_empty, FALSE, NULL,
 176                                NULL, NULL, /* Cancelation */
 177                                NULL, NULL, /* Notification */
 178                                scratch_pool));
 179     }
 180
 181   return SVN_NO_ERROR;
 182 }
 183
 184 /* Releases the directory baton if there are no more users */
 185 static svn_error_t *
 186 maybe_done(struct dir_baton_t *db)
 187 {
 188   db->users--;
 189
 190   if (db->users == 0)
 191     {
 192       struct dir_baton_t *pb = db->pb;
 193
 194       svn_pool_clear(db->pool);
 195
 196       if (pb)
 197         SVN_ERR(maybe_done(pb));
 198     }
 199
 200   return SVN_NO_ERROR;
 201 }
 202
 203 static svn_error_t *
 204 ensure_added(struct dir_baton_t *db,
 205              apr_pool_t *scratch_pool)
 206 {
 207   if (db->created)
 208     return SVN_NO_ERROR;
 209
 210   if (db->pb)
 211     SVN_ERR(ensure_added(db->pb, scratch_pool));
 212
 213   db->created = TRUE;
 214
 215   /* Add the directory with all the already collected properties */
 216   SVN_ERR(svn_wc_add_from_disk2(db->eb->wc_ctx,
 217                                 db->local_abspath,
 218                                 db->properties,
 219                                 db->eb->notify_func,
 220                                 db->eb->notify_baton,
 221                                 scratch_pool));
 222
 223   return SVN_NO_ERROR;
 224 }
 225
 226 static svn_error_t *
 227 dir_close(void *dir_baton,
 228           apr_pool_t *scratch_pool)
 229 {
 230   struct dir_baton_t *db = dir_baton;
 231   /*struct edit_baton_t *eb = db->eb;*/
 232
 233   SVN_ERR(ensure_added(db, scratch_pool));
 234
 235   SVN_ERR(maybe_done(db));
 236
 237   return SVN_NO_ERROR;
 238 }
 239
 240 struct file_baton_t
 241 {
 242   apr_pool_t *pool;
 243
 244   struct dir_baton_t *pb;
 245   struct edit_baton_t *eb;
 246
 247   const char *local_abspath;
 248   apr_hash_t *properties;
 249
 250   svn_boolean_t writing;
 251   unsigned char digest[APR_MD5_DIGESTSIZE];
 252
 253   const char *tmp_path;
 254 };
 255
 256 static svn_error_t *
 257 file_add(const char *path,
 258          void *parent_baton,
 259          const char *copyfrom_path,
 260          svn_revnum_t copyfrom_revision,
 261          apr_pool_t *result_pool,
 262          void **file_baton)
 263 {
 264   struct dir_baton_t *pb = parent_baton;
 265   struct edit_baton_t *eb = pb->eb;
 266   apr_pool_t *file_pool = svn_pool_create(pb->pool);
 267   struct file_baton_t *fb = apr_pcalloc(file_pool, sizeof(*fb));
 268   svn_boolean_t under_root;
 269
 270   pb->users++;
 271
 272   fb->pool = file_pool;
 273   fb->eb = eb;
 274   fb->pb = pb;
 275
 276   SVN_ERR(svn_dirent_is_under_root(&under_root, &fb->local_abspath,
 277                                    eb->anchor_abspath, path, fb->pool));
 278   if (! under_root)
 279     {
 280       return svn_error_createf(
 281                     SVN_ERR_WC_OBSTRUCTED_UPDATE, NULL,
 282                     _("Path '%s' is not in the working copy"),
 283                     svn_dirent_local_style(path, fb->pool));
 284     }
 285
 286   *file_baton = fb;
 287   return SVN_NO_ERROR;
 288 }
 289
 290 static svn_error_t *
 291 file_change_prop(void *file_baton,
 292                  const char *name,
 293                  const svn_string_t *value,
 294                  apr_pool_t *scratch_pool)
 295 {
 296   struct file_baton_t *fb = file_baton;
 297   svn_prop_kind_t prop_kind;
 298
 299   prop_kind = svn_property_kind2(name);
 300
 301   if (prop_kind != svn_prop_regular_kind
 302       || ! strcmp(name, SVN_PROP_MERGEINFO))
 303     {
 304       /* We can't handle DAV, ENTRY and merge specific props here */
 305       return SVN_NO_ERROR;
 306     }
 307
 308   /* We store all properties in the hash for immediate addition
 309       with the svn_wc_add_from_disk2() call */
 310   if (! fb->properties)
 311     fb->properties = apr_hash_make(fb->pool);
 312
 313   if (value != NULL)
 314     svn_hash_sets(fb->properties, apr_pstrdup(fb->pool, name),
 315                   svn_string_dup(value, fb->pool));
 316
 317   return SVN_NO_ERROR;
 318 }
 319
 320 static svn_error_t *
 321 file_textdelta(void *file_baton,
 322                const char *base_checksum,
 323                apr_pool_t *result_pool,
 324                svn_txdelta_window_handler_t *handler,
 325                void **handler_baton)
 326 {
 327   struct file_baton_t *fb = file_baton;
 328   svn_stream_t *target;
 329
 330   SVN_ERR_ASSERT(! fb->writing);
 331
 332   SVN_ERR(svn_stream_open_writable(&target, fb->local_abspath, fb->pool,
 333                                    fb->pool));
 334
 335   fb->writing = TRUE;
 336   svn_txdelta_apply(svn_stream_empty(fb->pool) /* source */,
 337                     target,
 338                     fb->digest,
 339                     fb->local_abspath,
 340                     fb->pool,
 341                     /* Provide the handler directly */
 342                     handler, handler_baton);
 343
 344   return SVN_NO_ERROR;
 345 }
 346
 347 static svn_error_t *
 348 file_close(void *file_baton,
 349            const char *text_checksum,
 350            apr_pool_t *scratch_pool)
 351 {
 352   struct file_baton_t *fb = file_baton;
 353   struct edit_baton_t *eb = fb->eb;
 354   struct dir_baton_t *pb = fb->pb;
 355
 356   SVN_ERR(ensure_added(pb, fb->pool));
 357
 358   if (text_checksum)
 359     {
 360       svn_checksum_t *expected_checksum;
 361       svn_checksum_t *actual_checksum;
 362
 363       SVN_ERR(svn_checksum_parse_hex(&expected_checksum, svn_checksum_md5,
 364                                      text_checksum, fb->pool));
 365       actual_checksum = svn_checksum__from_digest_md5(fb->digest, fb->pool);
 366
 367       if (! svn_checksum_match(expected_checksum, actual_checksum))
 368         return svn_error_trace(
 369                     svn_checksum_mismatch_err(expected_checksum,
 370                                               actual_checksum,
 371                                               fb->pool,
 372                                          _("Checksum mismatch for '%s'"),
 373                                               svn_dirent_local_style(
 374                                                     fb->local_abspath,
 375                                                     fb->pool)));
 376     }
 377
 378   SVN_ERR(svn_wc_add_from_disk2(eb->wc_ctx, fb->local_abspath, fb->properties,
 379                                 eb->notify_func, eb->notify_baton,
 380                                 fb->pool));
 381
 382   svn_pool_destroy(fb->pool);
 383   SVN_ERR(maybe_done(pb));
 384
 385   return SVN_NO_ERROR;
 386 }
 387
 388 static svn_error_t *
 389 copy_foreign_dir(svn_ra_session_t *ra_session,
 390                  svn_client__pathrev_t *location,
 391                  svn_wc_context_t *wc_ctx,
 392                  const char *dst_abspath,
 393                  svn_depth_t depth,
 394                  svn_wc_notify_func2_t notify_func,
 395                  void *notify_baton,
 396                  svn_cancel_func_t cancel_func,
 397                  void *cancel_baton,
 398                  apr_pool_t *scratch_pool)
 399 {
 400   struct edit_baton_t eb;
 401   svn_delta_editor_t *editor = svn_delta_default_editor(scratch_pool);
 402   const svn_delta_editor_t *wrapped_editor;
 403   void *wrapped_baton;
 404   const svn_ra_reporter3_t *reporter;
 405   void *reporter_baton;
 406
 407   eb.pool = scratch_pool;
 408   eb.anchor_abspath = dst_abspath;
 409
 410   eb.wc_ctx = wc_ctx;
 411   eb.notify_func = notify_func;
 412   eb.notify_baton  = notify_baton;
 413
 414   editor->open_root = edit_open;
 415   editor->close_edit = edit_close;
 416
 417   editor->add_directory = dir_add;
 418   editor->change_dir_prop = dir_change_prop;
 419   editor->close_directory = dir_close;
 420
 421   editor->add_file = file_add;
 422   editor->change_file_prop = file_change_prop;
 423   editor->apply_textdelta = file_textdelta;
 424   editor->close_file = file_close;
 425
 426   SVN_ERR(svn_delta_get_cancellation_editor(cancel_func, cancel_baton,
 427                                             editor, &eb,
 428                                             &wrapped_editor, &wrapped_baton,
 429                                             scratch_pool));
 430
 431   SVN_ERR(svn_ra_do_update3(ra_session, &reporter, &reporter_baton,
 432                             location->rev, "", svn_depth_infinity,
 433                             FALSE, FALSE, wrapped_editor, wrapped_baton,
 434                             scratch_pool, scratch_pool));
 435
 436   SVN_ERR(reporter->set_path(reporter_baton, "", location->rev, depth,
 437                              TRUE /* incomplete */,
 438                              NULL, scratch_pool));
 439
 440   SVN_ERR(reporter->finish_report(reporter_baton, scratch_pool));
 441
 442   return SVN_NO_ERROR;
 443 }
 444
 445
 446 svn_error_t *
 447 svn_client__copy_foreign(const char *url,
 448                          const char *dst_abspath,
 449                          svn_opt_revision_t *peg_revision,
 450                          svn_opt_revision_t *revision,
 451                          svn_depth_t depth,
 452                          svn_boolean_t make_parents,
 453                          svn_boolean_t already_locked,
 454                          svn_client_ctx_t *ctx,
 455                          apr_pool_t *scratch_pool)
 456 {
 457   svn_ra_session_t *ra_session;
 458   svn_client__pathrev_t *loc;
 459   svn_node_kind_t kind;
 460   svn_node_kind_t wc_kind;
 461   const char *dir_abspath;
 462
 463   SVN_ERR_ASSERT(svn_path_is_url(url));
 464   SVN_ERR_ASSERT(svn_dirent_is_absolute(dst_abspath));
 465
 466   /* Do we need to validate/update revisions? */
 467
 468   SVN_ERR(svn_client__ra_session_from_path2(&ra_session, &loc,
 469                                             url, NULL,
 470                                             peg_revision,
 471                                             revision, ctx,
 472                                             scratch_pool));
 473
 474   SVN_ERR(svn_ra_check_path(ra_session, "", loc->rev, &kind, scratch_pool));
 475
 476   if (kind != svn_node_file && kind != svn_node_dir)
 477     return svn_error_createf(
 478                 SVN_ERR_ILLEGAL_TARGET, NULL,
 479                 _("'%s' is not a valid location inside a repository"),
 480                 url);
 481
 482   SVN_ERR(svn_wc_read_kind2(&wc_kind, ctx->wc_ctx, dst_abspath, FALSE, TRUE,
 483                             scratch_pool));
 484
 485   if (wc_kind != svn_node_none)
 486     {
 487       return svn_error_createf(
 488                 SVN_ERR_ENTRY_EXISTS, NULL,
 489                 _("'%s' is already under version control"),
 490                 svn_dirent_local_style(dst_abspath, scratch_pool));
 491     }
 492
 493   dir_abspath = svn_dirent_dirname(dst_abspath, scratch_pool);
 494   SVN_ERR(svn_wc_read_kind2(&wc_kind, ctx->wc_ctx, dir_abspath,
 495                             FALSE, FALSE, scratch_pool));
 496
 497   if (wc_kind == svn_node_none)
 498     {
 499       if (make_parents)
 500         SVN_ERR(svn_client__make_local_parents(dir_abspath, make_parents, ctx,
 501                                                scratch_pool));
 502
 503       SVN_ERR(svn_wc_read_kind2(&wc_kind, ctx->wc_ctx, dir_abspath,
 504                                 FALSE, FALSE, scratch_pool));
 505     }
 506
 507   if (wc_kind != svn_node_dir)
 508     return svn_error_createf(
 509                 SVN_ERR_ENTRY_NOT_FOUND, NULL,
 510                 _("Can't add '%s', because no parent directory is found"),
 511                 svn_dirent_local_style(dst_abspath, scratch_pool));
 512
 513
 514   if (kind == svn_node_file)
 515     {
 516       svn_stream_t *target;
 517       apr_hash_t *props;
 518       apr_hash_index_t *hi;
 519       SVN_ERR(svn_stream_open_writable(&target, dst_abspath, scratch_pool,
 520                                        scratch_pool));
 521
 522       SVN_ERR(svn_ra_get_file(ra_session, "", loc->rev, target, NULL, &props,
 523                               scratch_pool));
 524
 525       if (props != NULL)
 526         for (hi = apr_hash_first(scratch_pool, props); hi;
 527              hi = apr_hash_next(hi))
 528           {
 529             const char *name = svn__apr_hash_index_key(hi);
 530
 531             if (svn_property_kind2(name) != svn_prop_regular_kind
 532                 || ! strcmp(name, SVN_PROP_MERGEINFO))
 533               {
 534                 /* We can't handle DAV, ENTRY and merge specific props here */
 535                 svn_hash_sets(props, name, NULL);
 536               }
 537           }
 538
 539       if (!already_locked)
 540         SVN_WC__CALL_WITH_WRITE_LOCK(
 541               svn_wc_add_from_disk2(ctx->wc_ctx, dst_abspath, props,
 542                                     ctx->notify_func2, ctx->notify_baton2,
 543                                     scratch_pool),
 544               ctx->wc_ctx, dir_abspath, FALSE, scratch_pool);
 545       else
 546         SVN_ERR(svn_wc_add_from_disk2(ctx->wc_ctx, dst_abspath, props,
 547                                       ctx->notify_func2, ctx->notify_baton2,
 548                                       scratch_pool));
 549     }
 550   else
 551     {
 552       if (!already_locked)
 553         SVN_WC__CALL_WITH_WRITE_LOCK(
 554               copy_foreign_dir(ra_session, loc,
 555                                ctx->wc_ctx, dst_abspath,
 556                                depth,
 557                                ctx->notify_func2, ctx->notify_baton2,
 558                                ctx->cancel_func, ctx->cancel_baton,
 559                                scratch_pool),
 560               ctx->wc_ctx, dir_abspath, FALSE, scratch_pool);
 561       else
 562         SVN_ERR(copy_foreign_dir(ra_session, loc,
 563                                  ctx->wc_ctx, dst_abspath,
 564                                  depth,
 565                                  ctx->notify_func2, ctx->notify_baton2,
 566                                  ctx->cancel_func, ctx->cancel_baton,
 567                                  scratch_pool));
 568     }
 569
 570   return SVN_NO_ERROR;
 571 }