src/libpakfire/build.c

   1 /*#############################################################################
   2 #                                                                             #
   3 # Pakfire - The IPFire package management system                              #
   4 # Copyright (C) 2021 Pakfire development team                                 #
   5 #                                                                             #
   6 # This program is free software: you can redistribute it and/or modify        #
   7 # it under the terms of the GNU General Public License as published by        #
   8 # the Free Software Foundation, either version 3 of the License, or           #
   9 # (at your option) any later version.                                         #
  10 #                                                                             #
  11 # This program is distributed in the hope that it will be useful,             #
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  14 # GNU General Public License for more details.                                #
  15 #                                                                             #
  16 # You should have received a copy of the GNU General Public License           #
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  18 #                                                                             #
  19 #############################################################################*/
  20
  21 #include <errno.h>
  22 #include <stdlib.h>
  23 #include <sys/mount.h>
  24 #include <unistd.h>
  25 #include <uuid/uuid.h>
  26
  27 #include <pakfire/build.h>
  28 #include <pakfire/cgroup.h>
  29 #include <pakfire/dependencies.h>
  30 #include <pakfire/dist.h>
  31 #include <pakfire/file.h>
  32 #include <pakfire/i18n.h>
  33 #include <pakfire/jail.h>
  34 #include <pakfire/logging.h>
  35 #include <pakfire/mount.h>
  36 #include <pakfire/package.h>
  37 #include <pakfire/packager.h>
  38 #include <pakfire/parser.h>
  39 #include <pakfire/private.h>
  40 #include <pakfire/problem.h>
  41 #include <pakfire/repo.h>
  42 #include <pakfire/request.h>
  43 #include <pakfire/scriptlet.h>
  44 #include <pakfire/snapshot.h>
  45 #include <pakfire/solution.h>
  46 #include <pakfire/string.h>
  47 #include <pakfire/util.h>
  48
  49 #define CCACHE_DIR "/var/cache/ccache"
  50
  51 // We guarantee 2 GiB of memory to every build container
  52 #define PAKFIRE_BUILD_MEMORY_GUARANTEED         (size_t)2 * 1024 * 1024 * 1024
  53
  54 // We allow only up to 2048 processes/threads for every build container
  55 #define PAKFIRE_BUILD_PID_LIMIT                         (size_t)2048
  56
  57 struct pakfire_build {
  58         struct pakfire* pakfire;
  59         int nrefs;
  60
  61         // Flags
  62         int flags;
  63
  64         // Build ID
  65         uuid_t id;
  66         char _id[UUID_STR_LEN];
  67
  68         char target[PATH_MAX];
  69
  70         // cgroup
  71         struct pakfire_cgroup* cgroup;
  72
  73         // Jail
  74         struct pakfire_jail* jail;
  75
  76         // The build repository
  77         struct pakfire_repo* repo;
  78
  79         // A list of all built packages
  80         struct pakfire_packagelist* packages;
  81
  82         // Buildroot
  83         char buildroot[PATH_MAX];
  84
  85         // States
  86         int init:1;
  87 };
  88
  89 #define TEMPLATE \
  90         "#!/bin/bash --login\n" \
  91         "\n" \
  92         "set -e\n" \
  93         "set -x\n" \
  94         "\n" \
  95         "%%{_%s}\n" \
  96         "\n" \
  97         "exit 0\n"
  98
  99 static int pakfire_build_has_flag(struct pakfire_build* build, int flag) {
 100         return build->flags & flag;
 101 }
 102
 103 static int __pakfire_build_setup_repo(struct pakfire* pakfire,
 104                 struct pakfire_repo* repo, void* p) {
 105         char path[PATH_MAX];
 106         FILE* f = NULL;
 107         int r;
 108
 109         struct pakfire_build* build = (struct pakfire_build*)p;
 110
 111         // Skip processing the installed repository
 112         if (pakfire_repo_is_installed_repo(repo))
 113                 return 0;
 114
 115         // Skip processing any other internal repositories
 116         if (pakfire_repo_is_internal(repo))
 117                 return 0;
 118
 119         const char* name = pakfire_repo_get_name(repo);
 120
 121         DEBUG(pakfire, "Exporting repository configuration for '%s'\n", name);
 122
 123         // Make path for configuration file
 124         r = pakfire_path(build->pakfire, path, PAKFIRE_CONFIG_DIR "/repos/%s.repo", name);
 125         if (r) {
 126                 ERROR(pakfire, "Could not make repository configuration path for %s: %m\n", name);
 127                 goto ERROR;
 128         }
 129
 130         // Open the repository configuration
 131         f = fopen(path, "w");
 132         if (!f) {
 133                 ERROR(pakfire, "Could not open %s for writing: %m\n", path);
 134                 goto ERROR;
 135         }
 136
 137         // Write repository configuration
 138         r = pakfire_repo_write_config(repo, f);
 139         if (r) {
 140                 ERROR(pakfire, "Could not write repository configuration for %s: %m\n", name);
 141                 goto ERROR;
 142         }
 143
 144         // Bind-mount any local repositories
 145         if (pakfire_repo_is_local(repo)) {
 146                 const char* _path = pakfire_repo_get_path(repo);
 147
 148                 // Bind-mount the repository data read-only
 149                 r = pakfire_jail_bind(build->jail, _path, _path, MS_RDONLY);
 150                 if (r) {
 151                         ERROR(pakfire, "Could not bind-mount the repository at %s: %m\n", _path);
 152                         goto ERROR;
 153                 }
 154         }
 155
 156 ERROR:
 157         if (f)
 158                 fclose(f);
 159
 160         return r;
 161 }
 162
 163 /*
 164         This function enables the local repository so that it can be accessed by
 165         a pakfire instance running inside the chroot.
 166 */
 167 static int pakfire_build_enable_repos(struct pakfire_build* build) {
 168         return pakfire_repo_walk(build->pakfire, __pakfire_build_setup_repo, build);
 169 }
 170
 171 /*
 172         Drops the user into a shell
 173 */
 174 static int pakfire_build_shell(struct pakfire_build* build) {
 175         int r;
 176
 177         // Export local repository if running in interactive mode
 178         r = pakfire_build_enable_repos(build);
 179         if (r)
 180                 return r;
 181
 182         // Run shell
 183         return pakfire_jail_shell(build->jail);
 184 }
 185
 186 static int pakfire_build_run_script(struct pakfire_build* build, const char* filename,
 187                 const char* args[], char** output) {
 188         char* script = NULL;
 189         size_t size = 0;
 190         char path[PATH_MAX];
 191
 192         DEBUG(build->pakfire, "Running build script '%s'...\n", filename);
 193
 194         // Make the source path
 195         pakfire_path_join(path, PAKFIRE_SCRIPTS_DIR, filename);
 196
 197         // Open the source script
 198         FILE* f = fopen(path, "r");
 199         if (!f) {
 200                 ERROR(build->pakfire, "Could not open %s: %m\n", path);
 201                 return 1;
 202         }
 203
 204         // Read the script into memory
 205         int r = pakfire_read_file_into_buffer(f, &script, &size);
 206         if (r) {
 207                 ERROR(build->pakfire, "Could not read script into memory: %m\n");
 208                 goto ERROR;
 209         }
 210
 211         // Execute the script
 212         r = pakfire_jail_exec_script(build->jail, script, size, args, output);
 213         if (r) {
 214                 ERROR(build->pakfire, "Script '%s' failed with status %d\n", filename, r);
 215         }
 216
 217 ERROR:
 218         if (script)
 219                 free(script);
 220
 221         return r;
 222 }
 223
 224 static int pakfire_build_find_dependencies(struct pakfire_build* build,
 225                 struct pakfire_package* pkg, struct pakfire_filelist* filelist, const char* buildroot) {
 226         char* provides = NULL;
 227         char* requires = NULL;
 228         char path[PATH_MAX];
 229
 230         // Allocate path to write the filelist to
 231         int r = pakfire_path(build->pakfire, path, "%s", "/var/tmp/.pakfire-filelist.XXXXXX");
 232         if (r)
 233                 return 1;
 234
 235         // Create a temporary file
 236         FILE* f = pakfire_mktemp(path, 0);
 237         if (!f)
 238                 goto ERROR;
 239
 240         // Write filelist to the temporary file
 241         r = pakfire_filelist_export(filelist, f);
 242         fclose(f);
 243         if (r) {
 244                 ERROR(build->pakfire, "Could not export filelist: %m\n");
 245                 goto ERROR;
 246         }
 247
 248         const char* root = pakfire_get_path(build->pakfire);
 249
 250         // Pass buildroot and the filelist as arguments
 251         const char* args[] = {
 252                 buildroot, pakfire_path_relpath(root, path), NULL
 253         };
 254
 255         // Find all provides
 256         r = pakfire_build_run_script(build, "find-provides", args, &provides);
 257         if (r) {
 258                 ERROR(build->pakfire, "find-provides returned with error %d\n", r);
 259                 goto ERROR;
 260         }
 261
 262         // Find all requires
 263         r = pakfire_build_run_script(build, "find-requires", args, &requires);
 264         if (r) {
 265                 ERROR(build->pakfire, "find-requires returned with error %d\n", r);
 266                 goto ERROR;
 267         }
 268
 269         // Add all provides to the package
 270         if (provides) {
 271                 r = pakfire_str2deps(build->pakfire, pkg, PAKFIRE_PKG_PROVIDES, provides);
 272                 if (r) {
 273                         ERROR(build->pakfire, "Could not add provides: %m\n");
 274                         goto ERROR;
 275                 }
 276         }
 277
 278         // Add all requires to the package
 279         if (requires) {
 280                 r = pakfire_str2deps(build->pakfire, pkg, PAKFIRE_PKG_REQUIRES, requires);
 281                 if (r) {
 282                         ERROR(build->pakfire, "Could not add provides: %m\n");
 283                         goto ERROR;
 284                 }
 285         }
 286
 287         // Success
 288         r = 0;
 289
 290 ERROR:
 291         if (provides)
 292                 free(provides);
 293         if (requires)
 294                 free(requires);
 295         unlink(path);
 296
 297         return r;
 298 }
 299
 300 static int append_to_array(const char*** array, const char* s) {
 301         unsigned int length = 0;
 302
 303         // Determine the length of the existing array
 304         if (*array) {
 305                 for (const char** element = *array; *element; element++)
 306                         length++;
 307         }
 308
 309         // Allocate space
 310         *array = reallocarray(*array, length + 2, sizeof(**array));
 311         if (!*array)
 312                 return 1;
 313
 314         // Append s and terminate the array
 315         (*array)[length] = s;
 316         (*array)[length + 1] = NULL;
 317
 318         return 0;
 319 }
 320
 321 static int pakfire_build_package_add_files(struct pakfire_build* build,
 322                 struct pakfire_parser* makefile, const char* buildroot, const char* namespace,
 323                 struct pakfire_package* pkg, struct pakfire_packager* packager) {
 324         struct pakfire_filelist* filelist = NULL;
 325         int r = 1;
 326
 327         char** files = NULL;
 328         const char** includes = NULL;
 329         const char** excludes = NULL;
 330
 331         // Fetch filelist from makefile
 332         files = pakfire_parser_get_split(makefile, namespace, "files", '\n');
 333
 334         // No files to package?
 335         if (!files)
 336                 return 0;
 337
 338         // Split into includes and excludes
 339         for (char** file = files; *file; file++) {
 340                 if (**file == '!')
 341                         r = append_to_array(&excludes, *file);
 342                 else
 343                         r = append_to_array(&includes, *file);
 344                 if (r)
 345                         goto ERROR;
 346         }
 347
 348         // Allocate a new filelist
 349         r = pakfire_filelist_create(&filelist, build->pakfire);
 350         if (r)
 351                 goto ERROR;
 352
 353         // Scan for files
 354         r = pakfire_filelist_scan(filelist, build->buildroot, includes, excludes);
 355         if (r)
 356                 goto ERROR;
 357
 358         const size_t length = pakfire_filelist_size(filelist);
 359         DEBUG(build->pakfire, "%zu file(s) found\n", length);
 360
 361         // Nothing to do if the filelist is empty
 362         if (!length)
 363                 goto ERROR;
 364
 365         // Find dependencies
 366         r = pakfire_build_find_dependencies(build, pkg, filelist, buildroot);
 367         if (r) {
 368                 ERROR(build->pakfire, "Finding dependencies failed: %m\n");
 369                 goto ERROR;
 370         }
 371
 372         // Add all files to the package
 373         r = pakfire_packager_add_files(packager, filelist);
 374         if (r)
 375                 goto ERROR;
 376
 377 ERROR:
 378         if (filelist)
 379                 pakfire_filelist_unref(filelist);
 380         if (files) {
 381                 for (char** file = files; *file; file++)
 382                         free(*file);
 383                 free(files);
 384         }
 385         if (includes)
 386                 free(includes);
 387         if (excludes)
 388                 free(excludes);
 389
 390         return r;
 391 }
 392
 393 static int pakfire_build_add_scriptlet_requires(struct pakfire_build* build,
 394                 struct pakfire_package* pkg, struct pakfire_scriptlet* scriptlet) {
 395         char* prerequires = NULL;
 396         char path[PATH_MAX];
 397         size_t size;
 398         int r;
 399
 400         const char* root = pakfire_get_path(build->pakfire);
 401
 402         // Make filename
 403         r = pakfire_path(build->pakfire, path, "%s", "/var/tmp/.pakfire-scriptlet.XXXXXX");
 404         if (r)
 405                 return r;
 406
 407         // Fetch scriptlet payload
 408         const char* data = pakfire_scriptlet_get_data(scriptlet, &size);
 409
 410         // Create a temporary file
 411         FILE* f = pakfire_mktemp(path, 0);
 412         if (!f)
 413                 return 1;
 414
 415         // Write scriptlet
 416         ssize_t bytes_written = fwrite(data, 1, size, f);
 417         if (bytes_written < 0) {
 418                 ERROR(build->pakfire, "Could not write to %s: %m\n", path);
 419                 fclose(f);
 420                 goto ERROR;
 421         }
 422
 423         // Close file
 424         fclose(f);
 425
 426         // Build commandline
 427         const char* args[] = {
 428                 pakfire_path_relpath(root, path),
 429                 NULL,
 430         };
 431
 432         // Find all pre-requires
 433         r = pakfire_build_run_script(build, "find-prerequires", args, &prerequires);
 434         if (r)
 435                 goto ERROR;
 436
 437         // Add all pre-requires to the package
 438         if (prerequires) {
 439                 r = pakfire_str2deps(build->pakfire, pkg, PAKFIRE_PKG_PREREQUIRES, prerequires);
 440                 if (r) {
 441                         ERROR(build->pakfire, "Could not add pre-requires: %m\n");
 442                         goto ERROR;
 443                 }
 444         }
 445
 446 ERROR:
 447         if (r && *path)
 448                 unlink(path);
 449         if (prerequires)
 450                 free(prerequires);
 451         return r;
 452 }
 453
 454 static int pakfire_build_package_add_scriptlet(struct pakfire_build* build,
 455                 struct pakfire_package* pkg, struct pakfire_packager* packager,
 456                 const char* type, const char* data) {
 457         struct pakfire_scriptlet* scriptlet = NULL;
 458         char* shell = NULL;
 459         int r;
 460
 461         // Wrap scriptlet into a shell script
 462         r = asprintf(&shell, "#!/bin/sh\n\nset -e\n\n%s\n\nexit 0\n", data);
 463         if (r < 0)
 464                 goto ERROR;
 465
 466         // Create a scriptlet
 467         r = pakfire_scriptlet_create(&scriptlet, build->pakfire, type, shell, 0);
 468         if (r)
 469                 goto ERROR;
 470
 471         // Add it to the package
 472         r = pakfire_packager_add_scriptlet(packager, scriptlet);
 473         if (r) {
 474                 ERROR(build->pakfire, "Could not add scriptlet %s\n", type);
 475                 goto ERROR;
 476         }
 477
 478         // Add scriptlet requirements
 479         r = pakfire_build_add_scriptlet_requires(build, pkg, scriptlet);
 480         if (r) {
 481                 ERROR(build->pakfire, "Could not add scriptlet requirements: %m\n");
 482                 goto ERROR;
 483         }
 484
 485         // Success
 486         r = 0;
 487
 488 ERROR:
 489         if (scriptlet)
 490                 pakfire_scriptlet_unref(scriptlet);
 491         if (shell)
 492                 free(shell);
 493
 494         return r;
 495 }
 496
 497 static int pakfire_build_package_add_scriptlets(struct pakfire_build* build,
 498                 struct pakfire_parser* makefile, const char* namespace,
 499                 struct pakfire_package* pkg, struct pakfire_packager* packager) {
 500         char name[NAME_MAX];
 501         int r;
 502
 503         for (const char** type = pakfire_scriptlet_types; *type; type++) {
 504                 r = pakfire_string_format(name, "scriptlet:%s", *type);
 505                 if (r)
 506                         return r;
 507
 508                 // Fetch the scriptlet
 509                 char* data = pakfire_parser_get(makefile, namespace, name);
 510                 if (!data)
 511                         continue;
 512
 513                 // Add it to the package
 514                 r = pakfire_build_package_add_scriptlet(build, pkg, packager, *type, data);
 515                 if (r) {
 516                         free(data);
 517                         return r;
 518                 }
 519
 520                 free(data);
 521         }
 522
 523         return 0;
 524 }
 525
 526 static int pakfire_build_package(struct pakfire_build* build, struct pakfire_parser* makefile,
 527                 const char* buildroot, const char* namespace) {
 528         struct pakfire_package* pkg = NULL;
 529         struct pakfire_packager* packager = NULL;
 530
 531         int r = 1;
 532
 533         // Expand the handle into the package name
 534         char* name = pakfire_parser_expand(makefile, "packages", namespace);
 535         if (!name) {
 536                 ERROR(build->pakfire, "Could not get package name: %m\n");
 537                 goto ERROR;
 538         }
 539
 540         INFO(build->pakfire, "Building package '%s'...\n", name);
 541         DEBUG(build->pakfire, "  buildroot = %s\n", buildroot);
 542
 543         // Fetch build architecture
 544         const char* arch = pakfire_get_arch(build->pakfire);
 545         if (!arch)
 546                 goto ERROR;
 547
 548         // Fetch package from makefile
 549         r = pakfire_parser_create_package(makefile, &pkg, NULL, namespace, arch);
 550         if (r) {
 551                 ERROR(build->pakfire, "Could not create package from makefile: %m\n");
 552                 goto ERROR;
 553         }
 554
 555         // Set distribution
 556         const char* distribution = pakfire_parser_get(makefile, NULL, "DISTRO_NAME");
 557         if (distribution) {
 558                 r = pakfire_package_set_string(pkg, PAKFIRE_PKG_DISTRO, distribution);
 559                 if (r)
 560                         goto ERROR;
 561         }
 562
 563         // Set build ID
 564         pakfire_package_set_uuid(pkg, PAKFIRE_PKG_BUILD_ID, build->id);
 565
 566         // Set source package
 567         const char* source_name = pakfire_parser_get(makefile, NULL, "name");
 568         if (source_name) {
 569                 r = pakfire_package_set_string(pkg, PAKFIRE_PKG_SOURCE_NAME, source_name);
 570                 if (r)
 571                         goto ERROR;
 572         }
 573
 574         // Set source EVR
 575         const char* source_evr = pakfire_parser_get(makefile, NULL, "evr");
 576         if (source_evr) {
 577                 r = pakfire_package_set_string(pkg, PAKFIRE_PKG_SOURCE_EVR, source_evr);
 578                 if (r)
 579                         goto ERROR;
 580         }
 581
 582         // Set source arch
 583         r = pakfire_package_set_string(pkg, PAKFIRE_PKG_SOURCE_ARCH, "src");
 584         if (r)
 585                 goto ERROR;
 586
 587         // Create a packager
 588         r = pakfire_packager_create(&packager, build->pakfire, pkg);
 589         if (r)
 590                 goto ERROR;
 591
 592         // Add files
 593         r = pakfire_build_package_add_files(build, makefile, buildroot, namespace,
 594                 pkg, packager);
 595         if (r)
 596                 goto ERROR;
 597
 598         // Add scriptlets
 599         r = pakfire_build_package_add_scriptlets(build, makefile, namespace,
 600                 pkg, packager);
 601         if (r)
 602                 goto ERROR;
 603
 604         const char* path = pakfire_repo_get_path(build->repo);
 605
 606         // Write the finished package
 607         r = pakfire_packager_finish_to_directory(packager, path, NULL);
 608         if (r) {
 609                 ERROR(build->pakfire, "pakfire_packager_finish() failed: %m\n");
 610                 goto ERROR;
 611         }
 612
 613         // Cleanup all packaged files
 614         r = pakfire_packager_cleanup(packager);
 615         if (r)
 616                 goto ERROR;
 617
 618         // Success
 619         r = 0;
 620
 621 ERROR:
 622         if (packager)
 623                 pakfire_packager_unref(packager);
 624         if (pkg)
 625                 pakfire_package_unref(pkg);
 626         if (name)
 627                 free(name);
 628
 629         return r;
 630 }
 631
 632 static int pakfire_build_package_dump(struct pakfire* pakfire,
 633                 struct pakfire_package* pkg, void* p) {
 634         char* dump = pakfire_package_dump(pkg, PAKFIRE_PKG_DUMP_LONG);
 635         if (!dump)
 636                 return 1;
 637
 638         INFO(pakfire, "%s\n", dump);
 639         free(dump);
 640
 641         return 0;
 642 }
 643
 644 static int pakfire_build_packages(struct pakfire_build* build,
 645                 struct pakfire_parser* makefile) {
 646         DEBUG(build->pakfire, "Creating packages...");
 647         int r = 1;
 648
 649         const char* buildroot = pakfire_relpath(build->pakfire, build->buildroot);
 650
 651         // Fetch a list all all packages
 652         char** packages = pakfire_parser_list_namespaces(makefile, "packages.package:*");
 653         if (!packages) {
 654                 ERROR(build->pakfire, "Could not find any packages: %m\n");
 655                 goto ERROR;
 656         }
 657
 658         unsigned int num_packages = 0;
 659
 660         // Count how many packages we have
 661         for (char** package = packages; *package; package++)
 662                 num_packages++;
 663
 664         DEBUG(build->pakfire, "Found %d package(s)\n", num_packages);
 665
 666         // Build packages in reverse order
 667         for (int i = num_packages - 1; i >= 0; i--) {
 668                 r = pakfire_build_package(build, makefile, buildroot, packages[i]);
 669                 if (r)
 670                         goto ERROR;
 671         }
 672
 673         // Rescan the build repository to import all packages again
 674         r = pakfire_repo_scan(build->repo, 0);
 675         if (r)
 676                 goto ERROR;
 677
 678         // Fetch all packages
 679         r = pakfire_repo_create_packagelist(build->repo, &build->packages);
 680         if (r)
 681                 goto ERROR;
 682
 683         // Dump them all
 684         r = pakfire_packagelist_walk(build->packages, pakfire_build_package_dump, NULL);
 685         if (r)
 686                 goto ERROR;
 687
 688         // Success
 689         r = 0;
 690
 691 ERROR:
 692         if (packages)
 693                 free(packages);
 694
 695         return r;
 696 }
 697
 698 static int pakfire_build_stage(struct pakfire_build* build,
 699                 struct pakfire_parser* makefile, const char* stage) {
 700         char template[1024];
 701
 702         // Prepare template for this stage
 703         int r = pakfire_string_format(template, TEMPLATE, stage);
 704         if (r)
 705                 return r;
 706
 707         // Fetch the environment
 708         char** envp = pakfire_parser_make_environ(makefile);
 709
 710         // Create the build script
 711         char* script = pakfire_parser_expand(makefile, "build", template);
 712         if (!script) {
 713                 ERROR(build->pakfire, "Could not generate the build script for stage '%s': %m\n",
 714                         stage);
 715                 goto ERROR;
 716         }
 717
 718         INFO(build->pakfire, "Running build stage '%s'\n", stage);
 719
 720         // Import environment
 721         // XXX is this a good idea?
 722         r = pakfire_jail_import_env(build->jail, (const char**)envp);
 723         if (r) {
 724                 ERROR(build->pakfire, "Could not import environment: %m\n");
 725                 goto ERROR;
 726         }
 727
 728         // Run the script
 729         r = pakfire_jail_exec_script(build->jail, script, strlen(script), NULL, NULL);
 730         if (r) {
 731                 ERROR(build->pakfire, "Build stage '%s' failed with status %d\n", stage, r);
 732         }
 733
 734 ERROR:
 735         if (envp) {
 736                 for (char** e = envp; *e; e++)
 737                         free(*e);
 738                 free(envp);
 739         }
 740         if (script)
 741                 free(script);
 742
 743         return r;
 744 }
 745
 746 static const char* post_build_scripts[] = {
 747         "remove-static-libs",
 748         "check-symlinks",
 749         "check-unsafe-files",
 750         "check-libraries",
 751         "check-rpaths",
 752         "check-buildroot",
 753         "check-include",
 754         "check-hardening",
 755         "check-interpreters",
 756         "check-fhs",
 757         "compress-man-pages",
 758         "strip",
 759         NULL,
 760 };
 761
 762 static int pakfire_build_run_post_build_scripts(struct pakfire_build* build) {
 763         // Fetch buildroot
 764         const char* buildroot = pakfire_relpath(build->pakfire, build->buildroot);
 765
 766         // Set default arguments for build scripts
 767         const char* args[] = {
 768                 buildroot, NULL
 769         };
 770
 771         // Run them one by one
 772         for (const char** script = post_build_scripts; *script; script++) {
 773                 int r = pakfire_build_run_script(build, *script, args, NULL);
 774                 if (r)
 775                         return r;
 776         }
 777
 778         return 0;
 779 }
 780
 781 static void pakfire_build_free(struct pakfire_build* build) {
 782         if (build->packages)
 783                 pakfire_packagelist_unref(build->packages);
 784
 785         if (build->repo) {
 786                 pakfire_repo_clean(build->repo, PAKFIRE_REPO_CLEAN_FLAGS_DESTROY);
 787                 pakfire_repo_unref(build->repo);
 788         }
 789
 790         if (build->jail)
 791                 pakfire_jail_unref(build->jail);
 792
 793         if (build->cgroup) {
 794                 // Destroy the cgroup
 795                 pakfire_cgroup_destroy(build->cgroup);
 796
 797                 // Free it
 798                 pakfire_cgroup_unref(build->cgroup);
 799         }
 800
 801         pakfire_unref(build->pakfire);
 802         free(build);
 803 }
 804
 805 static int pakfire_build_parse_id(struct pakfire_build* build, const char* id) {
 806         int r;
 807
 808         // Try parsing the Build ID
 809         if (id) {
 810                 r = uuid_parse(id, build->id);
 811                 if (r) {
 812                         ERROR(build->pakfire, "Could not parse build ID '%s'\n", id);
 813                         errno = EINVAL;
 814                         return r;
 815                 }
 816
 817         // Otherwise initialize the Build ID with something random
 818         } else {
 819                 uuid_generate_random(build->id);
 820         }
 821
 822         // Store the ID as string, too
 823         uuid_unparse_lower(build->id, build->_id);
 824
 825         return 0;
 826 }
 827
 828 /*
 829         Sets up a new cgroup for this build
 830 */
 831 static int pakfire_build_setup_cgroup(struct pakfire_build* build) {
 832         struct pakfire_config* config = NULL;
 833         char path[PATH_MAX];
 834         int r;
 835
 836         // Compose path
 837         r = pakfire_string_format(path, "pakfire/build-%s", build->_id);
 838         if (r) {
 839                 ERROR(build->pakfire, "Could not compose path for cgroup: %m\n");
 840                 goto ERROR;
 841         }
 842
 843         // Create a new cgroup
 844         r = pakfire_cgroup_open(&build->cgroup, build->pakfire, path,
 845                 PAKFIRE_CGROUP_ENABLE_ACCOUNTING);
 846         if (r) {
 847                 ERROR(build->pakfire, "Could not create cgroup for build %s: %m\n", build->_id);
 848                 goto ERROR;
 849         }
 850
 851         // Fetch config
 852         config = pakfire_get_config(build->pakfire);
 853         if (!config)
 854                 goto ERROR;
 855
 856         // Guarantee some minimum memory
 857         size_t memory_guaranteed = pakfire_config_get_bytes(config, "build",
 858                 "memory_guaranteed", PAKFIRE_BUILD_MEMORY_GUARANTEED);
 859         if (memory_guaranteed) {
 860                 r = pakfire_cgroup_set_guaranteed_memory(build->cgroup, memory_guaranteed);
 861                 if (r)
 862                         goto ERROR;
 863         }
 864
 865         // Limit memory
 866         size_t memory_limit = pakfire_config_get_bytes(config, "build", "memory_limit", 0);
 867         if (memory_limit) {
 868                 r = pakfire_cgroup_set_memory_limit(build->cgroup, memory_limit);
 869                 if (r)
 870                         goto ERROR;
 871         }
 872
 873         // Set PID limit
 874         size_t pid_limit = pakfire_config_get_int(config, "build",
 875                 "pid_limit", PAKFIRE_BUILD_PID_LIMIT);
 876         if (pid_limit) {
 877                 r = pakfire_cgroup_set_pid_limit(build->cgroup, pid_limit);
 878                 if (r)
 879                         goto ERROR;
 880         }
 881
 882 ERROR:
 883         if (config)
 884                 pakfire_config_unref(config);
 885
 886         return r;
 887 }
 888
 889 /*
 890         Sets up a new jail for this build
 891 */
 892 static int pakfire_build_setup_jail(struct pakfire_build* build) {
 893         int r;
 894
 895         // Create a new jail
 896         r = pakfire_jail_create(&build->jail, build->pakfire, 0);
 897         if (r) {
 898                 ERROR(build->pakfire, "Could not create jail for build %s: %m\n", build->_id);
 899                 return r;
 900         }
 901
 902         // Connect the jail to our cgroup
 903         r = pakfire_jail_set_cgroup(build->jail, build->cgroup);
 904         if (r) {
 905                 ERROR(build->pakfire, "Could not set cgroup for jail: %m\n");
 906                 return r;
 907         }
 908
 909         // Done
 910         return 0;
 911 }
 912
 913 /*
 914         Sets up the ccache for this build
 915 */
 916 static int pakfire_build_setup_ccache(struct pakfire_build* build) {
 917         char path[PATH_MAX];
 918         int r;
 919
 920         // Check if we want a ccache
 921         if (pakfire_build_has_flag(build, PAKFIRE_BUILD_DISABLE_CCACHE)) {
 922                 DEBUG(build->pakfire, "ccache usage has been disabled for this build\n");
 923
 924                 // Set CCACHE_DISABLE=1 so that if ccache is installed, it will disable itself
 925                 r = pakfire_jail_set_env(build->jail, "CCACHE_DISABLE", "1");
 926                 if (r) {
 927                         ERROR(build->pakfire, "Could not disable ccache: %m\n");
 928                         return r;
 929                 }
 930
 931                 return 0;
 932         }
 933
 934         // Compose path
 935         r = pakfire_cache_path(build->pakfire, path, "%s", "ccache");
 936         if (r) {
 937                 ERROR(build->pakfire, "Could not compose ccache path: %m\n");
 938                 return 1;
 939         }
 940
 941         DEBUG(build->pakfire, "Mounting ccache from %s\n", path);
 942
 943         // Ensure path exists
 944         r = pakfire_mkdir(path, 0755);
 945         if (r && errno != EEXIST) {
 946                 ERROR(build->pakfire, "Could not create ccache directory %s: %m\n", path);
 947                 return r;
 948         }
 949
 950         // Bind-mount the directory
 951         r = pakfire_jail_bind(build->jail, path, CCACHE_DIR, MS_NOSUID|MS_NOEXEC|MS_NODEV);
 952         if (r) {
 953                 ERROR(build->pakfire, "Could not mount ccache: %m\n");
 954                 return r;
 955         }
 956
 957         return 0;
 958 }
 959
 960 static int pakfire_build_setup_repo(struct pakfire_build* build) {
 961         char path[PATH_MAX] = "/var/tmp/.pakfire-build-repo.XXXXXX";
 962         char url[PATH_MAX];
 963         int r;
 964
 965         // Create a new repository
 966         r = pakfire_repo_create(&build->repo, build->pakfire, PAKFIRE_REPO_RESULT);
 967         if (r) {
 968                 ERROR(build->pakfire, "Could not create repository %s: %m", PAKFIRE_REPO_RESULT);
 969                 return r;
 970         }
 971
 972         // Set description
 973         pakfire_repo_set_description(build->repo, _("Build Repository"));
 974
 975         // Create a temporary directory
 976         const char* p = pakfire_mkdtemp(path);
 977         if (!p) {
 978                 ERROR(build->pakfire, "Could not create a the build repository: %m\n");
 979                 return 1;
 980         }
 981
 982         // Format the URL
 983         r = pakfire_string_format(url, "file://%s", path);
 984         if (r)
 985                 return r;
 986
 987         // Set the URL
 988         pakfire_repo_set_baseurl(build->repo, url);
 989
 990         return r;
 991 }
 992
 993 PAKFIRE_EXPORT int pakfire_build_create(struct pakfire_build** build,
 994                 struct pakfire* pakfire, const char* id, int flags) {
 995         int r;
 996
 997         // Allocate build object
 998         struct pakfire_build* b = calloc(1, sizeof(*b));
 999         if (!b)
1000                 return 1;
1001
1002         // Reference pakfire
1003         b->pakfire = pakfire_ref(pakfire);
1004
1005         // Initialize reference counter
1006         b->nrefs = 1;
1007
1008         // Copy flags
1009         b->flags = flags;
1010
1011         // Parse ID
1012         r = pakfire_build_parse_id(b, id);
1013         if (r)
1014                 goto ERROR;
1015
1016         // Setup repo
1017         r = pakfire_build_setup_repo(b);
1018         if (r)
1019                 goto ERROR;
1020
1021         // Create cgroup
1022         r = pakfire_build_setup_cgroup(b);
1023         if (r)
1024                 goto ERROR;
1025
1026         // Create jail
1027         r = pakfire_build_setup_jail(b);
1028         if (r)
1029                 goto ERROR;
1030
1031         // Setup ccache
1032         r = pakfire_build_setup_ccache(b);
1033         if (r)
1034                 goto ERROR;
1035
1036         *build = b;
1037         return 0;
1038
1039 ERROR:
1040         pakfire_build_free(b);
1041         return r;
1042 }
1043
1044 PAKFIRE_EXPORT struct pakfire_build* pakfire_build_ref(struct pakfire_build* build) {
1045         ++build->nrefs;
1046
1047         return build;
1048 }
1049
1050 PAKFIRE_EXPORT struct pakfire_build* pakfire_build_unref(struct pakfire_build* build) {
1051         if (--build->nrefs > 0)
1052                 return build;
1053
1054         pakfire_build_free(build);
1055         return NULL;
1056 }
1057
1058 PAKFIRE_EXPORT int pakfire_build_set_target(
1059                 struct pakfire_build* build, const char* target) {
1060         return pakfire_string_set(build->target, target);
1061 }
1062
1063 static int pakfire_build_install_packages(struct pakfire_build* build,
1064                 int* snapshot_needs_update) {
1065         char** packages = NULL;
1066         int r = 1;
1067
1068         // Fetch configuration
1069         struct pakfire_config* config = pakfire_get_config(build->pakfire);
1070         if (!config) {
1071                 ERROR(build->pakfire, "Could not fetch configuration: %m\n");
1072                 r = 1;
1073                 goto ERROR;
1074         }
1075
1076         // Fetch build environment
1077         const char* requires = pakfire_config_get(config, "build", "requires", NULL);
1078         if (!requires) {
1079                 ERROR(build->pakfire, "No build requirements have been defined\n");
1080                 goto ERROR;
1081         }
1082
1083         // Split requirements into packages
1084         packages = pakfire_string_split(requires, ',');
1085         if (!packages)
1086                 goto ERROR;
1087
1088         int changed = 0;
1089
1090         // Install everything
1091         r = pakfire_install(build->pakfire, 0, 0, (const char**)packages, NULL, 0,
1092                 &changed, NULL, NULL);
1093         if (r) {
1094                 ERROR(build->pakfire, "Could not install build dependencies: %m\n");
1095                 goto ERROR;
1096         }
1097
1098         // Mark snapshot as changed if new packages were installed
1099         if (changed)
1100                 *snapshot_needs_update = 1;
1101
1102         // Update everything
1103         r = pakfire_sync(build->pakfire, 0, 0, &changed, NULL, NULL);
1104         if (r) {
1105                 ERROR(build->pakfire, "Could not update packages: %m\n");
1106                 goto ERROR;
1107         }
1108
1109         // Has anything changed?
1110         if (changed)
1111                 *snapshot_needs_update = 1;
1112
1113         // Success
1114         r = 0;
1115
1116 ERROR:
1117         if (config)
1118                 pakfire_config_unref(config);
1119
1120         if (packages) {
1121                 for (char** package = packages; *package; package++)
1122                         free(*package);
1123                 free(packages);
1124         }
1125
1126         return r;
1127 }
1128
1129 /*
1130         Initializes the build environment
1131 */
1132 static int pakfire_build_init(struct pakfire_build* build) {
1133         char path[PATH_MAX];
1134         int r;
1135
1136         // Don't do it again
1137         if (build->init) {
1138                 DEBUG(build->pakfire, "Build environment has already been initialized\n");
1139                 return 0;
1140         }
1141
1142         // Compose path for snapshot
1143         r = pakfire_cache_path(build->pakfire, path, "%s", "snapshot.tar.zst");
1144         if (r) {
1145                 ERROR(build->pakfire, "Could not compose snapshot path: %m\n");
1146                 return 1;
1147         }
1148
1149         // Tells us whether we need to (re-)create the snapshot
1150         int snapshot_needs_update = 0;
1151
1152         // Extract snapshot
1153         if (!pakfire_build_has_flag(build, PAKFIRE_BUILD_DISABLE_SNAPSHOT)) {
1154                 // Try restoring the snapshot
1155                 r = pakfire_snapshot_restore(build->pakfire, path);
1156                 if (r && errno != ENOENT)
1157                         return r;
1158         }
1159
1160         // Install or update any build dependencies
1161         r = pakfire_build_install_packages(build, &snapshot_needs_update);
1162         if (r)
1163                 return r;
1164
1165         // Update the snapshot if there were changes
1166         if (!pakfire_build_has_flag(build, PAKFIRE_BUILD_DISABLE_SNAPSHOT) && snapshot_needs_update) {
1167                 // Create a new snapshot
1168                 r = pakfire_snapshot_create(build->pakfire, path);
1169                 if (r)
1170                         return r;
1171         }
1172
1173         // Mark as initialized
1174         build->init = 1;
1175
1176         return 0;
1177 }
1178
1179 static int pakfire_build_read_makefile(struct pakfire_build* build,
1180                 struct pakfire_parser** parser, struct pakfire_package* package) {
1181         char path[PATH_MAX];
1182         int r;
1183
1184         struct pakfire_parser_error* error = NULL;
1185
1186         const char* nevra = pakfire_package_get_string(package, PAKFIRE_PKG_NEVRA);
1187         const char* name  = pakfire_package_get_string(package, PAKFIRE_PKG_NAME);
1188
1189         // Compose path to makefile
1190         r = pakfire_path(build->pakfire, path, "/usr/src/packages/%s/%s.nm", nevra, name);
1191         if (r < 0)
1192                 return 1;
1193
1194         // Read makefile
1195         r = pakfire_read_makefile(parser, build->pakfire, path, &error);
1196         if (r) {
1197                 if (error) {
1198                         ERROR(build->pakfire, "Could not parse makefile %s: %s\n", path,
1199                                 pakfire_parser_error_get_message(error));
1200                 } else {
1201                         ERROR(build->pakfire, "Could not parse makefile %s: %m\n", path);
1202                 }
1203
1204                 goto ERROR;
1205         }
1206
1207         // Set BUILDROOT
1208         const char* buildroot = pakfire_relpath(build->pakfire, build->buildroot);
1209         if (buildroot)
1210                 pakfire_parser_set(*parser, NULL, "BUILDROOT", buildroot, 0);
1211
1212 ERROR:
1213         if (error)
1214                 pakfire_parser_error_unref(error);
1215
1216         return r;
1217 }
1218
1219 static int pakfire_build_perform(struct pakfire_build* build,
1220                 struct pakfire_parser* makefile) {
1221         int r;
1222
1223         // Prepare the build
1224         r = pakfire_build_stage(build, makefile, "prepare");
1225         if (r)
1226                 goto ERROR;
1227
1228         // Perform the build
1229         r = pakfire_build_stage(build, makefile, "build");
1230         if (r)
1231                 goto ERROR;
1232
1233         // Test the build
1234         if (!pakfire_build_has_flag(build, PAKFIRE_BUILD_DISABLE_TESTS)) {
1235                 r = pakfire_build_stage(build, makefile, "test");
1236                 if (r)
1237                         goto ERROR;
1238         }
1239
1240         // Install everything
1241         r = pakfire_build_stage(build, makefile, "install");
1242         if (r)
1243                 goto ERROR;
1244
1245         // Run post build scripts
1246         r = pakfire_build_run_post_build_scripts(build);
1247         if (r)
1248                 goto ERROR;
1249
1250         // Done!
1251         return 0;
1252
1253 ERROR:
1254         // Drop to a shell for debugging
1255         if (pakfire_has_flag(build->pakfire, PAKFIRE_BUILD_INTERACTIVE))
1256                 pakfire_build_shell(build);
1257
1258         return r;
1259 }
1260
1261 static int __pakfire_build_unpackaged_file(struct pakfire* pakfire,
1262                 struct pakfire_file* file, void* p) {
1263         char* s = pakfire_file_dump(file);
1264         if (s) {
1265                 ERROR(pakfire, "%s\n", s);
1266                 free(s);
1267         }
1268
1269         return 0;
1270 }
1271
1272 static int pakfire_build_check_unpackaged_files(struct pakfire_build* build) {
1273         struct pakfire_filelist* filelist = NULL;
1274         int r;
1275
1276         // Create a new filelist
1277         r = pakfire_filelist_create(&filelist, build->pakfire);
1278         if (r)
1279                 goto ERROR;
1280
1281         // Scan for all files in BUILDROOT
1282         r = pakfire_filelist_scan(filelist, build->buildroot, NULL, NULL);
1283         if (r)
1284                 goto ERROR;
1285
1286         const size_t length = pakfire_filelist_size(filelist);
1287
1288         if (length) {
1289                 ERROR(build->pakfire, "Unpackaged files found:\n");
1290
1291                 r = pakfire_filelist_walk(filelist, __pakfire_build_unpackaged_file, NULL);
1292                 if (r)
1293                         goto ERROR;
1294
1295                 // Report an error
1296                 r = 1;
1297         }
1298
1299 ERROR:
1300         if (filelist)
1301                 pakfire_filelist_unref(filelist);
1302
1303         return r;
1304 }
1305
1306 static int pakfire_build_install_package(struct pakfire* pakfire,
1307                 struct pakfire_package* pkg, void* p) {
1308         struct pakfire_request* request = (struct pakfire_request*)p;
1309
1310         return pakfire_request_install_package(request, pkg);
1311 }
1312
1313 static int pakfire_build_install_test(struct pakfire_build* build) {
1314         struct pakfire_request* request = NULL;
1315         struct pakfire_problem* problem = NULL;
1316         struct pakfire_solution* solution = NULL;
1317         const char* s = NULL;
1318         int r;
1319
1320         // Create a new request
1321         r = pakfire_request_create(&request, build->pakfire, 0);
1322         if (r)
1323                 goto ERROR;
1324
1325         // Add all packages
1326         r = pakfire_packagelist_walk(build->packages, pakfire_build_install_package, request);
1327
1328         // Solve the request
1329         r = pakfire_request_solve(request, NULL);
1330         switch (r) {
1331                 // All okay
1332                 case 0:
1333                         break;
1334
1335                 // Dependency Error
1336                 case 2:
1337                         ERROR(build->pakfire, "Install test failed:\n");
1338
1339                         // Walk through all problems
1340                         for (;;) {
1341                                 r = pakfire_request_next_problem(request, &problem);
1342                                 if (r)
1343                                         goto ERROR;
1344
1345                                 // There are no more problems
1346                                 if (!problem)
1347                                         break;
1348
1349                                 // Format the problem into something human-readable
1350                                 s = pakfire_problem_to_string(problem);
1351                                 if (!s)
1352                                         continue;
1353
1354                                 ERROR(build->pakfire, "  * %s\n", s);
1355
1356                                 // Walk through all solutions
1357                                 for (;;) {
1358                                         r = pakfire_problem_next_solution(problem, &solution);
1359                                         if (r)
1360                                                 goto ERROR;
1361
1362                                         // There are no more solutions
1363                                         if (!solution)
1364                                                 break;
1365
1366                                         // Format the solution into something human-readable
1367                                         s = pakfire_solution_to_string(solution);
1368                                         if (!s)
1369                                                 continue;
1370
1371                                         ERROR(build->pakfire, "    * %s\n", s);
1372                                 }
1373                         }
1374
1375                         break;
1376
1377                 // Any other errors
1378                 default:
1379                         goto ERROR;
1380         }
1381
1382 ERROR:
1383         if (r)
1384                 ERROR(build->pakfire, "Install test failed: %m\n");
1385         if (request)
1386                 pakfire_request_unref(request);
1387         if (problem)
1388                 pakfire_problem_unref(problem);
1389         if (solution)
1390                 pakfire_solution_unref(solution);
1391
1392         return r;
1393 }
1394
1395 static int pakfire_build_post_check(struct pakfire_build* build) {
1396         int r;
1397
1398         // Check for unpackaged files
1399         r = pakfire_build_check_unpackaged_files(build);
1400         if (r)
1401                 return r;
1402
1403         // Perform install test
1404         r = pakfire_build_install_test(build);
1405         if (r)
1406                 return r;
1407
1408         return 0;
1409 }
1410
1411 static int pakfire_build_copy_package(struct pakfire* pakfire,
1412                 struct pakfire_package* pkg, void* p) {
1413         struct pakfire_archive* archive = NULL;
1414         char path[PATH_MAX];
1415         int r;
1416
1417         const char* target = (const char*)p;
1418
1419         if (!target) {
1420                 errno = EINVAL;
1421                 return 1;
1422         }
1423
1424         // Fetch the package filename
1425         const char* filename = pakfire_package_get_string(pkg, PAKFIRE_PKG_FILENAME);
1426         if (!filename) {
1427                 r = 1;
1428                 goto ERROR;
1429         }
1430
1431         // Format the destination path
1432         r = pakfire_string_format(path, "%s/%s", target, filename);
1433         if (r)
1434                 goto ERROR;
1435
1436         // Open the archive
1437         archive = pakfire_package_get_archive(pkg);
1438         if (!archive) {
1439                 r = 1;
1440                 goto ERROR;
1441         }
1442
1443         // Copy it to its destination
1444         r = pakfire_archive_copy(archive, path);
1445         if (r)
1446                 goto ERROR;
1447
1448 ERROR:
1449         if (archive)
1450                 pakfire_archive_unref(archive);
1451
1452         return r;
1453 }
1454
1455 static int pakfire_build_copy_packages(struct pakfire_build* build) {
1456         struct pakfire_repo* local = NULL;
1457         int r = 0;
1458
1459         DEBUG(build->pakfire, "Copying built packages\n");
1460
1461         // Fetch local repository
1462         local = pakfire_get_repo(build->pakfire, PAKFIRE_REPO_LOCAL);
1463
1464         // Copy all packages to the target path
1465         if (*build->target) {
1466                 r = pakfire_packagelist_walk(build->packages,
1467                         pakfire_build_copy_package, build->target);
1468                 if (r)
1469                         goto ERROR;
1470         }
1471
1472         // If we have a local repository, we copy all packages to it
1473         if (local) {
1474                 const char* path = pakfire_repo_get_path(local);
1475                 if (path) {
1476                         r = pakfire_packagelist_walk(build->packages,
1477                                 pakfire_build_copy_package, (void*)path);
1478                         if (r)
1479                                 goto ERROR;
1480                 }
1481         }
1482
1483 ERROR:
1484         if (local)
1485                 pakfire_repo_unref(local);
1486
1487         return r;
1488 }
1489
1490 PAKFIRE_EXPORT int pakfire_build_exec(struct pakfire_build* build, const char* path) {
1491         struct pakfire_package* package = NULL;
1492         struct pakfire_parser* makefile = NULL;
1493         char* buildroot = NULL;
1494         int r;
1495
1496         // Set buildroot
1497         r = pakfire_path(build->pakfire, build->buildroot, "%s", "/var/tmp/.pakfire-buildroot.XXXXXX");
1498         if (r)
1499                 goto ERROR;
1500
1501         // Open the source package
1502         r = pakfire_commandline_add(build->pakfire, path, &package);
1503         if (r)
1504                 goto ERROR;
1505
1506         const char* nevra = pakfire_package_get_string(package, PAKFIRE_PKG_NEVRA);
1507
1508         INFO(build->pakfire, "Building %s...\n", nevra);
1509
1510         // Initialize the build environment
1511         r = pakfire_build_init(build);
1512         if (r)
1513                 goto ERROR;
1514
1515         const char* packages[] = {
1516                 path, NULL
1517         };
1518
1519         // Install the package into the build environment
1520         r = pakfire_install(build->pakfire, 0, 0, packages, NULL, PAKFIRE_REQUEST_ESSENTIAL,
1521                 NULL, NULL, NULL);
1522         if (r) {
1523                 ERROR(build->pakfire, "Could not install %s\n", path);
1524                 goto ERROR;
1525         }
1526
1527         // Create BUILDROOT
1528         buildroot = pakfire_mkdtemp(build->buildroot);
1529         if (!buildroot) {
1530                 ERROR(build->pakfire, "Could not create BUILDROOT: %m\n");
1531                 goto ERROR;
1532         }
1533
1534         // Open the makefile
1535         r = pakfire_build_read_makefile(build, &makefile, package);
1536         if (r)
1537                 goto ERROR;
1538
1539         // Perform the actual build
1540         r = pakfire_build_perform(build, makefile);
1541         if (r)
1542                 goto ERROR;
1543
1544         // Create the packages
1545         r = pakfire_build_packages(build, makefile);
1546         if (r) {
1547                 ERROR(build->pakfire, "Could not create packages: %m\n");
1548                 goto ERROR;
1549         }
1550
1551         // Perform post build checks
1552         r = pakfire_build_post_check(build);
1553         if (r)
1554                 goto ERROR;
1555
1556         // Copy packages to their destination
1557         r = pakfire_build_copy_packages(build);
1558         if (r)
1559                 goto ERROR;
1560
1561 ERROR:
1562         if (makefile)
1563                 pakfire_parser_unref(makefile);
1564         if (package)
1565                 pakfire_package_unref(package);
1566
1567         // Cleanup buildroot
1568         if (buildroot)
1569                 pakfire_rmtree(buildroot, 0);
1570
1571         return r;
1572 }
1573
1574 /*
1575         Compatibility function to keep the legacy API.
1576 */
1577 PAKFIRE_EXPORT int pakfire_build(struct pakfire* pakfire, const char* path,
1578                 const char* target, const char* id, int flags) {
1579         struct pakfire_build* build = NULL;
1580         int r;
1581
1582         // Check if path is set
1583         if (!path) {
1584                 errno = EINVAL;
1585                 return 1;
1586         }
1587
1588         // Create a new build environment
1589         r = pakfire_build_create(&build, pakfire, id, flags);
1590         if (r)
1591                 goto ERROR;
1592
1593         // Set target
1594         if (target) {
1595                 r = pakfire_build_set_target(build, target);
1596                 if (r)
1597                         goto ERROR;
1598         }
1599
1600         // Run build
1601         r = pakfire_build_exec(build, path);
1602
1603 ERROR:
1604         if (build)
1605                 pakfire_build_unref(build);
1606
1607         return r;
1608 }
1609
1610 int pakfire_build_clean(struct pakfire* pakfire, int flags) {
1611         struct pakfire_repo* local = NULL;
1612         int r = 0;
1613
1614         // Fetch local repository
1615         local = pakfire_get_repo(pakfire, PAKFIRE_REPO_LOCAL);
1616         if (!local) {
1617                 ERROR(pakfire, "Could not find repository %s: %m\n", PAKFIRE_REPO_LOCAL);
1618                 goto ERROR;
1619         }
1620
1621         // Destroy everything in it
1622         r = pakfire_repo_clean(local, PAKFIRE_REPO_CLEAN_FLAGS_DESTROY);
1623         if (r)
1624                 goto ERROR;
1625
1626 ERROR:
1627         if (local)
1628                 pakfire_repo_unref(local);
1629
1630         return r;
1631 }
1632
1633 /*
1634         This is a convenience function that sets up a build environment and
1635         then drops the user into an interactive shell.
1636 */
1637 PAKFIRE_EXPORT int pakfire_shell(struct pakfire* pakfire, const char** packages) {
1638         struct pakfire_build* build = NULL;
1639         int r;
1640
1641         // Create a new build environment
1642         r = pakfire_build_create(&build, pakfire, NULL, PAKFIRE_BUILD_INTERACTIVE);
1643         if (r) {
1644                 ERROR(pakfire, "Could not create build: %m\n");
1645                 goto ERROR;
1646         }
1647
1648         // Initialize the build environment
1649         r = pakfire_build_init(build);
1650         if (r)
1651                 goto ERROR;
1652
1653         // Install any additional packages
1654         if (packages) {
1655                 r = pakfire_install(build->pakfire, 0, 0, packages, NULL, 0, NULL, NULL, NULL);
1656                 if (r)
1657                         return r;
1658         }
1659
1660         // Run shell
1661         r = pakfire_build_shell(build);
1662
1663 ERROR:
1664         if (build)
1665                 pakfire_build_unref(build);
1666
1667         return r;
1668 }