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main.c
author Kristian H?gsberg <krh@jiraiya.boston.redhat.com>
Mon Apr 07 21:32:19 2008 -0400 (2008-04-07)
changeset 207 b7d55f3fa183
parent 206 75d4b6a55593
child 208 7b460017c221
permissions -rw-r--r--
Detect failure to create download target file. 
     1 #include <stdlib.h>

     2 #include <stddef.h>

     3 #include <stdio.h>

     4 #include <stdint.h>

     5 #include <string.h>

     6 #include <sys/stat.h>

     7 #include <unistd.h>

     8 #include <fcntl.h>

     9 #include <dirent.h>

    10 #include <curl/curl.h>

    11 #include <fnmatch.h>

    12 #include <errno.h>

    13 #include "razor.h"

    14 #include "razor-internal.h"

    15 

    16 static const char system_repo_filename[] = "system.repo";

    17 static const char next_repo_filename[] = "system-next.repo";

    18 static const char rawhide_repo_filename[] = "rawhide.repo";

    19 static const char updated_repo_filename[] = "system-updated.repo";

    20 static const char razor_root_path[] = "/var/lib/razor";

    21 static const char root[] = "install";

    22 static const char *repo_filename = system_repo_filename;

    23 

    24 static int

    25 command_list(int argc, const char *argv[])

    26 {

    27 	struct razor_set *set;

    28 	struct razor_package_iterator *pi;

    29 	struct razor_package *package;

    30 	const char *pattern, *name, *version, *arch;

    31 	int only_names = 0, i = 0;

    32 

    33 	if (i < argc && strcmp(argv[i], "--only-names") == 0) {

    34 		only_names = 1;

    35 		i++;

    36 	}

    37 

    38 	pattern = argv[i];

    39 	set = razor_set_open(repo_filename);

    40 	pi = razor_package_iterator_create(set);

    41 	while (razor_package_iterator_next(pi, &package,

    42 					   &name, &version, &arch)) {

    43 		if (pattern && fnmatch(pattern, name, 0) != 0)

    44 			continue;

    45 

    46 		if (only_names)

    47 			printf("%s\n", name);

    48 		else

    49 			printf("%s-%s.%s\n", name, version, arch);

    50 	}

    51 	razor_package_iterator_destroy(pi);

    52 	razor_set_destroy(set);

    53 

    54 	return 0;

    55 }

    56 

    57 static int

    58 list_properties(const char *package_name,

    59 		enum razor_property_type required_type)

    60 {

    61 	struct razor_set *set;

    62 	struct razor_property *property;

    63 	struct razor_package *package;

    64 	struct razor_property_iterator *pi;

    65 	const char *name, *version;

    66 	enum razor_property_type type;

    67 	enum razor_version_relation relation;

    68 

    69 	set = razor_set_open(repo_filename);

    70 	if (package_name)

    71 		package = razor_set_get_package(set, package_name);

    72 	else

    73 		package = NULL;

    74 

    75 	pi = razor_property_iterator_create(set, package);

    76 	while (razor_property_iterator_next(pi, &property,

    77 					    &name, &relation, &version,

    78 					    &type)) {

    79 		if (type != required_type)

    80 			continue;

    81 		if (version[0] == '\0')

    82 			printf("%s\n", name);

    83 		else

    84 			printf("%s %s %s\n", name,

    85 			       razor_version_relations[relation], version);

    86 	}

    87 	razor_property_iterator_destroy(pi);

    88 

    89 	razor_set_destroy(set);

    90 

    91 	return 0;

    92 }

    93 

    94 static int

    95 command_list_requires(int argc, const char *argv[])

    96 {

    97 	return list_properties(argv[0], RAZOR_PROPERTY_REQUIRES);

    98 }

    99 

   100 static int

   101 command_list_provides(int argc, const char *argv[])

   102 {

   103 	return list_properties(argv[0], RAZOR_PROPERTY_PROVIDES);

   104 }

   105 

   106 static int

   107 command_list_obsoletes(int argc, const char *argv[])

   108 {

   109 	return list_properties(argv[0], RAZOR_PROPERTY_OBSOLETES);

   110 }

   111 

   112 static int

   113 command_list_conflicts(int argc, const char *argv[])

   114 {

   115 	return list_properties(argv[0], RAZOR_PROPERTY_CONFLICTS);

   116 }

   117 

   118 static int

   119 command_list_files(int argc, const char *argv[])

   120 {

   121 	struct razor_set *set;

   122 

   123 	set = razor_set_open(repo_filename);

   124 	if (set == NULL)

   125 		return 1;

   126 	razor_set_list_files(set, argv[0]);

   127 	razor_set_destroy(set);

   128 

   129 	return 0;

   130 }

   131 

   132 static int

   133 command_list_file_packages(int argc, const char *argv[])

   134 {

   135 	struct razor_set *set;

   136 	struct razor_package_iterator *pi;

   137 	struct razor_package *package;

   138 	const char *name, *version, *arch;

   139 

   140 	set = razor_set_open(repo_filename);

   141 	if (set == NULL)

   142 		return 1;

   143 

   144 	pi = razor_package_iterator_create_for_file(set, argv[0]);

   145 	while (razor_package_iterator_next(pi, &package,

   146 					   &name, &version, &arch))

   147 		printf("%s-%s\n", name, version);

   148 	razor_package_iterator_destroy(pi);

   149 

   150 	razor_set_destroy(set);

   151 

   152 	return 0;

   153 }

   154 

   155 static int

   156 command_list_package_files(int argc, const char *argv[])

   157 {

   158 	struct razor_set *set;

   159 

   160 	set = razor_set_open(repo_filename);

   161 	if (set == NULL)

   162 		return 1;

   163 	razor_set_list_package_files(set, argv[0]);

   164 	razor_set_destroy(set);

   165 

   166 	return 0;

   167 }

   168 

   169 static void

   170 list_packages_for_property(struct razor_set *set,

   171 			   struct razor_property *property)

   172 {

   173 	struct razor_package_iterator *pi;

   174 	struct razor_package *package;

   175 	const char *name, *version, *arch;

   176 

   177 	pi = razor_package_iterator_create_for_property(set, property);

   178 	while (razor_package_iterator_next(pi, &package,

   179 					   &name, &version, &arch))

   180 		printf("%s-%s.%s\n", name, version, arch);

   181 	razor_package_iterator_destroy(pi);

   182 }

   183 

   184 static int

   185 list_property_packages(const char *ref_name,

   186 		       const char *ref_version,

   187 		       enum razor_property_type ref_type)

   188 {

   189 	struct razor_set *set;

   190 	struct razor_property *property;

   191 	struct razor_property_iterator *pi;

   192 	const char *name, *version;

   193 	enum razor_property_type type;

   194 	enum razor_version_relation relation;

   195 

   196 	if (ref_name == NULL)

   197 		return 0;

   198 

   199 	set = razor_set_open(repo_filename);

   200 	if (set == NULL)

   201 		return 1;

   202 

   203 	pi = razor_property_iterator_create(set, NULL);

   204 	while (razor_property_iterator_next(pi, &property,

   205 					    &name, &relation, &version,

   206 					    &type)) {

   207 		if (strcmp(ref_name, name) != 0)

   208 			continue;

   209 		if (ref_version && relation == RAZOR_VERSION_EQUAL &&

   210 		    strcmp(ref_version, version) != 0)

   211 			continue;

   212 		if (ref_type != type)

   213 			continue;

   214 

   215 		list_packages_for_property(set, property);

   216 	}

   217 	razor_property_iterator_destroy(pi);

   218 

   219 	return 0;

   220 }

   221 

   222 static int

   223 command_what_requires(int argc, const char *argv[])

   224 {

   225 	return list_property_packages(argv[0], argv[1],

   226 				      RAZOR_PROPERTY_REQUIRES);

   227 }

   228 

   229 static int

   230 command_what_provides(int argc, const char *argv[])

   231 {

   232 	return list_property_packages(argv[0], argv[1],

   233 				      RAZOR_PROPERTY_PROVIDES);

   234 }

   235 

   236 static int

   237 show_progress(void *clientp,

   238 	      double dltotal, double dlnow, double ultotal, double ulnow)

   239 {

   240 	const char *file = clientp;

   241 

   242 	if (!dlnow < dltotal)

   243 		fprintf(stderr, "\rdownloading %s, %dkB/%dkB",

   244 			file, (int) dlnow / 1024, (int) dltotal / 1024);

   245 

   246 	return 0;

   247 }

   248 

   249 static int

   250 download_if_missing(const char *url, const char *file)

   251 {

   252 	CURL *curl;

   253 	struct stat buf;

   254 	char error[256];

   255 	FILE *fp;

   256 	CURLcode res;

   257 	long response;

   258 

   259 	curl = curl_easy_init();

   260 	if (curl == NULL)

   261 		return 1;

   262 

   263 	curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, error);

   264 	curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);

   265 	curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, show_progress);

   266 	curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, file);

   267 

   268 	if (stat(file, &buf) < 0) {

   269 		fp = fopen(file, "w");

   270 		if (fp == NULL) {

   271 			fprintf(stderr,

   272 				"failed to open %s for writing\n", file);

   273 			return -1;

   274 		}

   275 		curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);

   276 		curl_easy_setopt(curl, CURLOPT_URL, url);

   277 		res = curl_easy_perform(curl);

   278 		fclose(fp);

   279 		if (res != CURLE_OK) {

   280 			fprintf(stderr, "curl error: %s\n", error);

   281 			unlink(file);

   282 			return -1;

   283 		}

   284 		res = curl_easy_getinfo(curl,

   285 					CURLINFO_RESPONSE_CODE, &response);

   286 		if (res != CURLE_OK) {

   287 			fprintf(stderr, "curl error: %s\n", error);

   288                         unlink(file);

   289                         return -1;

   290 		}

   291 		if (response != 200) {

   292 			fprintf(stderr, " - failed %ld\n", response);

   293                         unlink(file);

   294                         return -1;

   295 		}

   296 		fprintf(stderr, "\n");

   297 	}

   298 

   299 	curl_easy_cleanup(curl);

   300 

   301 	return 0;

   302 }

   303 

   304 #define REPO_URL "http://download.fedora.redhat.com" \

   305 	"/pub/fedora/linux/development/i386/os"

   306 

   307 static int

   308 command_import_yum(int argc, const char *argv[])

   309 {

   310 	struct razor_set *set;

   311 

   312 	if (download_if_missing(REPO_URL "/repodata/primary.xml.gz",

   313 				"primary.xml.gz") < 0)

   314 		return -1;

   315 	if (download_if_missing(REPO_URL "/repodata/filelists.xml.gz",

   316 				"filelists.xml.gz") < 0)

   317 		return -1;

   318 

   319 	set = razor_set_create_from_yum();

   320 	if (set == NULL)

   321 		return 1;

   322 	razor_set_write(set, rawhide_repo_filename);

   323 	razor_set_destroy(set);

   324 	printf("wrote %s\n", rawhide_repo_filename);

   325 

   326 	return 0;

   327 }

   328 

   329 static int

   330 command_import_rpmdb(int argc, const char *argv[])

   331 {

   332 	struct razor_set *set;

   333 

   334 	set = razor_set_create_from_rpmdb();

   335 	if (set == NULL)

   336 		return 1;

   337 	razor_set_write(set, repo_filename);

   338 	razor_set_destroy(set);

   339 	printf("wrote %s\n", repo_filename);

   340 

   341 	return 0;

   342 }

   343 

   344 static int

   345 command_validate(int argc, const char *argv[])

   346 {

   347 	struct razor_set *set;

   348 

   349 	set = razor_set_open(repo_filename);

   350 	if (set == NULL)

   351 		return 1;

   352 	razor_set_list_unsatisfied(set);

   353 	razor_set_destroy(set);

   354 

   355 	return 0;

   356 }

   357 

   358 static int

   359 command_update(int argc, const char *argv[])

   360 {

   361 	struct razor_set *set, *upstream;

   362 	struct razor_transaction *trans;

   363 	int errors;

   364 

   365 	set = razor_set_open(repo_filename);

   366 	upstream = razor_set_open(rawhide_repo_filename);

   367 	if (set == NULL || upstream == NULL)

   368 		return 1;

   369 	trans = razor_transaction_create(set, upstream, argc, argv, 0, NULL);

   370 	errors = razor_transaction_describe(trans);

   371 	if (errors)

   372 		return 1;

   373 

   374 	set = razor_transaction_finish(trans);

   375 	razor_set_write(set, updated_repo_filename);

   376 	razor_set_destroy(set);

   377 	razor_set_destroy(upstream);

   378 	printf("wrote system-updated.repo\n");

   379 

   380 	return 0;

   381 }

   382 

   383 static int

   384 command_remove(int argc, const char *argv[])

   385 {

   386 	struct razor_set *set;

   387 	struct razor_transaction *trans;

   388 	int errors;

   389 

   390 	set = razor_set_open(repo_filename);

   391 	if (set == NULL)

   392 		return 1;

   393 	trans = razor_transaction_create(set, NULL, 0, NULL, argc, argv);

   394 	errors = razor_transaction_describe(trans);

   395 	if (errors)

   396 		return 1;

   397 

   398 	set = razor_transaction_finish(trans);

   399 	razor_set_write(set, updated_repo_filename);

   400 	razor_set_destroy(set);

   401 	printf("wrote system-updated.repo\n");

   402 

   403 	return 0;

   404 }

   405 

   406 static void

   407 print_diff(const char *name,

   408 	   const char *old_version, const char *new_version, const char *arch,

   409 	   void *data)

   410 {

   411 	if (old_version)

   412 		printf("removing %s %s\n", name, old_version);

   413 	else

   414 		printf("install %s %s\n", name, new_version);

   415 }

   416 

   417 static int

   418 command_diff(int argc, const char *argv[])

   419 {

   420 	struct razor_set *set, *updated;

   421 

   422 	set = razor_set_open(repo_filename);

   423 	updated = razor_set_open(updated_repo_filename);

   424 	if (set == NULL || updated == NULL)

   425 		return 1;

   426 

   427 	razor_set_diff(set, updated, print_diff, NULL);	

   428 

   429 	razor_set_destroy(set);

   430 	razor_set_destroy(updated);

   431 

   432 	return 0;

   433 }

   434 

   435 static int

   436 command_import_rpms(int argc, const char *argv[])

   437 {

   438 	DIR *dir;

   439 	struct dirent *de;

   440 	struct razor_importer *importer;

   441 	struct razor_set *set;

   442 	struct razor_rpm *rpm;

   443 	int len;

   444 	char filename[256];

   445 	const char *dirname = argv[0];

   446 

   447 	if (dirname == NULL) {

   448 		fprintf(stderr, "usage: razor import-rpms DIR\n");

   449 		return -1;

   450 	}

   451 

   452 	dir = opendir(dirname);

   453 	if (dir == NULL) {

   454 		fprintf(stderr, "couldn't read dir %s\n", dirname);

   455 		return -1;

   456 	}

   457 

   458 	importer = razor_importer_new();

   459 

   460 	while (de = readdir(dir), de != NULL) {

   461 		len = strlen(de->d_name);

   462 		if (len < 5 || strcmp(de->d_name + len - 4, ".rpm") != 0)

   463 		    continue;

   464 		snprintf(filename, sizeof filename,

   465 			 "%s/%s", dirname, de->d_name);

   466 		rpm = razor_rpm_open(filename);

   467 		if (rpm == NULL) {

   468 			fprintf(stderr,

   469 				"failed to open rpm \"%s\"\n", filename);

   470 			continue;

   471 		}

   472 		if (razor_importer_add_rpm(importer, rpm)) {

   473 			fprintf(stderr, "couldn't import %s\n", filename);

   474 			break;

   475 		}

   476 		razor_rpm_close(rpm);

   477 	}

   478 

   479 	if (de != NULL) {

   480 		razor_importer_destroy(importer);

   481 		return -1;

   482 	}

   483 

   484 	set = razor_importer_finish(importer);

   485 

   486 	razor_set_write(set, repo_filename);

   487 	razor_set_destroy(set);

   488 	printf("wrote %s\n", repo_filename);

   489 

   490 	return 0;

   491 }

   492 

   493 static void

   494 download_package(const char *name,

   495 		 const char *old_version,

   496 		 const char *new_version,

   497 		 const char *arch,

   498 		 void *data)

   499 {

   500 	char file[PATH_MAX], url[256];

   501 	const char *v;

   502 	int *errors = data;

   503 

   504 	if (old_version)

   505 		return;

   506 

   507 	/* Skip epoch */

   508 	v = strchr(new_version, ':');

   509 	if (v != NULL)

   510 		v = v + 1;

   511 	else

   512 		v = new_version;

   513 

   514 	snprintf(url, sizeof url,

   515 		 REPO_URL "/Packages/%s-%s.%s.rpm", name, v, arch);

   516 	snprintf(file, sizeof file,

   517 		 "rpms/%s-%s.%s.rpm", name, v, arch);

   518 	if (download_if_missing(url, file) < 0)

   519 		(*errors)++;

   520 }

   521 

   522 static void

   523 install_package(const char *name,

   524 		const char *old_version,

   525 		const char *new_version,

   526 		const char *arch,

   527 		void *data)

   528 {

   529 	const char *v, *root = data;

   530 	char file[PATH_MAX];

   531 	struct razor_rpm *rpm;

   532 

   533 	if (old_version) {

   534 		printf("removing %s %s not handled\n", name, old_version);

   535 		return;

   536 	}

   537 

   538 	/* Skip epoch */

   539 	v = strchr(new_version, ':');

   540 	if (v != NULL)

   541 		v = v + 1;

   542 	else

   543 		v = new_version;

   544 

   545 	printf("install %s %s\n", name, v);

   546 	snprintf(file, sizeof file, "rpms/%s-%s.%s.rpm", name, v, arch);

   547 

   548  	rpm = razor_rpm_open(file);

   549 	if (rpm == NULL) {

   550 		fprintf(stderr, "failed to open rpm %s\n", file);

   551 		return;

   552 	}

   553 	if (razor_rpm_install(rpm, root) < 0) {

   554 		fprintf(stderr,

   555 			"failed to install rpm %s\n", file);

   556 		return;

   557 	}

   558 	razor_rpm_close(rpm);

   559 }

   560 

   561 static int

   562 command_install(int argc, const char *argv[])

   563 {

   564 	struct razor_set *system, *upstream, *next;

   565 	struct razor_transaction *trans;

   566 	char path[PATH_MAX], new_path[PATH_MAX];

   567 	int errors, fd;

   568 

   569 	/* Create the new next repo file up front to ensure exclusive

   570 	 * access. */

   571 	snprintf(new_path, sizeof new_path,

   572 		 "%s%s/%s", root, razor_root_path, next_repo_filename);

   573 	fd = open(new_path, O_CREAT | O_WRONLY | O_TRUNC | O_EXCL, 0666);

   574 	if (fd < 0) {

   575 		fprintf(stderr, "failed to get lock file, "

   576 			"maybe previous operation crashed?\n");

   577 

   578 		/* FIXME: Use fcntl advisory locking to figure out

   579 		 * whether previous operation crashed or is still in

   580 		 * progress. */

   581 

   582 		return -1;

   583 	}

   584 

   585 	upstream = razor_set_open(rawhide_repo_filename);

   586 	snprintf(path, sizeof path,

   587 		 "%s%s/%s", root, razor_root_path, system_repo_filename);

   588 	system = razor_set_open(path);

   589 	if (system == NULL || upstream == NULL) {

   590 		unlink(new_path);

   591 		return 1;

   592 	}

   593 	trans = razor_transaction_create(system, upstream,

   594 					 argc, argv, 0, NULL);

   595 	errors = razor_transaction_describe(trans);

   596 	if (errors) {

   597 		unlink(new_path);

   598 		return 1;

   599 	}

   600 

   601 	next = razor_transaction_finish(trans);

   602 

   603 	razor_set_write_to_fd(next, fd);

   604 	printf("wrote %s\n", new_path);

   605 

   606 	if (mkdir("rpms", 0777) && errno != EEXIST) {

   607 		fprintf(stderr, "failed to create rpms directory.\n");

   608 		return 1;

   609 	}

   610 

   611 	razor_set_diff(system, next, download_package, &errors);

   612 	if (errors > 0) {

   613 		fprintf(stderr, "failed to download %d packages\n", errors);

   614 		unlink(new_path);

   615                 return 1;

   616         }

   617 

   618 	/* FIXME: We need to figure out the right install order here,

   619 	 * so the post and pre scripts can run. */

   620 	razor_set_diff(system, next, install_package, (void *) root);

   621 

   622 	razor_set_destroy(next);

   623 	razor_set_destroy(system);

   624 	razor_set_destroy(upstream);

   625 

   626 	/* Make it so. */

   627 	rename(new_path, path);

   628 	printf("renamed %s to %s\n", new_path, path);

   629 

   630 	return 0;

   631 }

   632 

   633 static int

   634 command_init(int argc, const char *argv[])

   635 {

   636 	struct stat buf;

   637 	struct razor_set *set;

   638 	char path[PATH_MAX];

   639 

   640 	if (stat(root, &buf) < 0) {

   641 		if (mkdir(root, 0777) < 0) {

   642 			fprintf(stderr,

   643 				"could not create install root \"%s\"\n",

   644 				root);

   645 			return -1;

   646 		}

   647 		fprintf(stderr, "created install root \"%s\"\n", root);

   648 	} else if (!S_ISDIR(buf.st_mode)) {

   649 		fprintf(stderr,

   650 			"install root \"%s\" exists, but is not a directory\n",

   651 			root);

   652 		return -1;

   653 	}

   654 

   655 	if (razor_create_dir(root, razor_root_path) < 0) {

   656 		fprintf(stderr, "could not create %s%s\n",

   657 			root, razor_root_path);

   658 		return -1;

   659 	}

   660 

   661 	set = razor_set_create();

   662 	snprintf(path, sizeof path, "%s%s/%s",

   663 		 root, razor_root_path, system_repo_filename);

   664 	if (razor_set_write(set, path) < 0) {

   665 		fprintf(stderr, "could not write initial package set\n");

   666 		return -1;

   667 	}

   668 	razor_set_destroy(set);

   669 

   670 	return 0;

   671 }

   672 

   673 static int

   674 command_download(int argc, const char *argv[])

   675 {

   676 	struct razor_set *set;

   677 	struct razor_package_iterator *pi;

   678 	struct razor_package *package;

   679 	const char *pattern = argv[0], *name, *version, *arch;

   680 	char url[256], file[256];

   681 	int matches = 0;

   682 

   683 	if (mkdir("rpms", 0777) && errno != EEXIST) {

   684 		fprintf(stderr, "failed to create rpms directory.\n");

   685 		return 1;

   686 	}

   687 

   688 	set = razor_set_open(rawhide_repo_filename);

   689 	pi = razor_package_iterator_create(set);

   690 	while (razor_package_iterator_next(pi, &package,

   691 					   &name, &version, &arch)) {

   692 		if (pattern && fnmatch(pattern, name, 0) != 0)

   693 			continue;

   694 

   695 		matches++;

   696 		snprintf(url, sizeof url,

   697 			 REPO_URL "/Packages/%s-%s.%s.rpm",

   698 			 name, version, arch);

   699 		snprintf(file, sizeof file,

   700 			 "rpms/%s-%s.%s.rpm", name, version, arch);

   701 		download_if_missing(url, file);

   702 	}

   703 	razor_package_iterator_destroy(pi);

   704 	razor_set_destroy(set);

   705 

   706 	if (matches == 0)

   707 		fprintf(stderr, "no packages matched \"%s\"\n", pattern);

   708 	else if (matches == 1)

   709 		fprintf(stderr, "downloaded 1 package\n");

   710 	else

   711 		fprintf(stderr, "downloaded %d packages\n", matches);

   712 

   713 	return 0;

   714 }

   715 

   716 static struct {

   717 	const char *name;

   718 	const char *description;

   719 	int (*func)(int argc, const char *argv[]);

   720 } razor_commands[] = {

   721 	{ "list", "list all packages", command_list },

   722 	{ "list-requires", "list all requires for the given package", command_list_requires },

   723 	{ "list-provides", "list all provides for the given package", command_list_provides },

   724 	{ "list-obsoletes", "list all obsoletes for the given package", command_list_obsoletes },

   725 	{ "list-conflicts", "list all conflicts for the given package", command_list_conflicts },

   726 	{ "list-files", "list files for package set", command_list_files },

   727 	{ "list-file-packages", "list packages owning file", command_list_file_packages },

   728 	{ "list-package-files", "list files in package", command_list_package_files },

   729 	{ "what-requires", "list the packages that have the given requires", command_what_requires },

   730 	{ "what-provides", "list the packages that have the given provides", command_what_provides },

   731 	{ "import-yum", "import yum metadata files", command_import_yum },

   732 	{ "import-rpmdb", "import the system rpm database", command_import_rpmdb },

   733 	{ "import-rpms", "import rpms from the given directory", command_import_rpms },

   734 	{ "validate", "validate a package set", command_validate },

   735 	{ "update", "update all or specified packages", command_update },

   736 	{ "remove", "remove specified packages", command_remove },

   737 	{ "diff", "show diff between two package sets", command_diff },

   738 	{ "install", "install rpm", command_install },

   739 	{ "init", "init razor root", command_init },

   740 	{ "download", "download packages", command_download }

   741 };

   742 

   743 static int

   744 usage(void)

   745 {

   746 	int i;

   747 

   748 	printf("usage:\n");

   749 	for (i = 0; i < ARRAY_SIZE(razor_commands); i++)

   750 		printf("  %-20s%s\n",

   751 		       razor_commands[i].name, razor_commands[i].description);

   752 

   753 	return 1;

   754 }

   755 

   756 int

   757 main(int argc, const char *argv[])

   758 {

   759 	char *repo;

   760 	int i;

   761 

   762 	repo = getenv("RAZOR_REPO");

   763 	if (repo != NULL)

   764 		repo_filename = repo;

   765 

   766 	if (argc < 2)

   767 		return usage();

   768 

   769 	for (i = 0; i < ARRAY_SIZE(razor_commands); i++)

   770 		if (strcmp(razor_commands[i].name, argv[1]) == 0)

   771 			return razor_commands[i].func(argc - 2, argv + 2);

   772 

   773 	return usage();

   774 }
razor