Merge branch 'krh/master'

Conflicts:

	librazor/razor.h
	librazor/rpm.c
	razor.c
	src/main.c

1 files changed, 858 insertions, 0 deletions

diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..15b3b6e
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,858 @@
+/*
+ * Copyright (C) 2008  Kristian Høgsberg <krh@redhat.com>
+ * Copyright (C) 2008  Red Hat, Inc
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdlib.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <curl/curl.h>
+#include <fnmatch.h>
+#include <errno.h>
+#include "razor.h"
+
+static const char system_repo_filename[] = "system.repo";
+static const char next_repo_filename[] = "system-next.repo";
+static const char rawhide_repo_filename[] = "rawhide.repo";
+static const char updated_repo_filename[] = "system-updated.repo";
+static const char install_root[] = "install";
+static const char *repo_filename = system_repo_filename;
+static const char *yum_url;
+
+static int
+command_list(int argc, const char *argv[])
+{
+	struct razor_set *set;
+	struct razor_package_iterator *pi;
+	struct razor_package *package;
+	const char *pattern, *name, *version, *arch;
+	int only_names = 0, i = 0;
+
+	if (i < argc && strcmp(argv[i], "--only-names") == 0) {
+		only_names = 1;
+		i++;
+	}
+
+	pattern = argv[i];
+	set = razor_set_open(repo_filename);
+	pi = razor_package_iterator_create(set);
+	while (razor_package_iterator_next(pi, &package,
+					   &name, &version, &arch)) {
+		if (pattern && fnmatch(pattern, name, 0) != 0)
+			continue;
+
+		if (only_names)
+			printf("%s\n", name);
+		else
+			printf("%s-%s.%s\n", name, version, arch);
+	}
+	razor_package_iterator_destroy(pi);
+	razor_set_destroy(set);
+
+	return 0;
+}
+
+static int
+list_properties(const char *package_name, uint32_t type)
+{
+	struct razor_set *set;
+	struct razor_property *property;
+	struct razor_package *package;
+	struct razor_property_iterator *pi;
+	const char *name, *version;
+	uint32_t flags;
+
+	set = razor_set_open(repo_filename);
+	if (package_name)
+		package = razor_set_get_package(set, package_name);
+	else
+		package = NULL;
+
+	pi = razor_property_iterator_create(set, package);
+	while (razor_property_iterator_next(pi, &property,
+					    &name, &flags, &version)) {
+		if ((flags & RAZOR_PROPERTY_TYPE_MASK) != type)
+			continue;
+		printf("%s", name);
+		if (version[0] != '\0')
+			printf(" %s %s",
+			       razor_property_relation_to_string(property),
+			       version);
+
+		if (flags & ~(RAZOR_PROPERTY_RELATION_MASK | RAZOR_PROPERTY_TYPE_MASK)) {
+			printf(" [");
+			if (flags & RAZOR_PROPERTY_PRE)
+				printf(" pre");
+			if (flags & RAZOR_PROPERTY_POST)
+				printf(" post");
+			if (flags & RAZOR_PROPERTY_PREUN)
+				printf(" preun");
+			if (flags & RAZOR_PROPERTY_POSTUN)
+				printf(" postun");
+			printf(" ]");
+		}
+		printf("\n");
+	}
+	razor_property_iterator_destroy(pi);
+
+	razor_set_destroy(set);
+
+	return 0;
+}
+
+static int
+command_list_requires(int argc, const char *argv[])
+{
+	return list_properties(argv[0], RAZOR_PROPERTY_REQUIRES);
+}
+
+static int
+command_list_provides(int argc, const char *argv[])
+{
+	return list_properties(argv[0], RAZOR_PROPERTY_PROVIDES);
+}
+
+static int
+command_list_obsoletes(int argc, const char *argv[])
+{
+	return list_properties(argv[0], RAZOR_PROPERTY_OBSOLETES);
+}
+
+static int
+command_list_conflicts(int argc, const char *argv[])
+{
+	return list_properties(argv[0], RAZOR_PROPERTY_CONFLICTS);
+}
+
+static int
+command_list_files(int argc, const char *argv[])
+{
+	struct razor_set *set;
+
+	set = razor_set_open(repo_filename);
+	razor_set_open_files(set, "system-files.repo");
+	if (set == NULL)
+		return 1;
+	razor_set_list_files(set, argv[0]);
+	razor_set_destroy(set);
+
+	return 0;
+}
+
+static int
+command_list_file_packages(int argc, const char *argv[])
+{
+	struct razor_set *set;
+	struct razor_package_iterator *pi;
+	struct razor_package *package;
+	const char *name, *version, *arch;
+
+	set = razor_set_open(repo_filename);
+	razor_set_open_files(set, "system-files.repo");
+	if (set == NULL)
+		return 1;
+
+	pi = razor_package_iterator_create_for_file(set, argv[0]);
+	while (razor_package_iterator_next(pi, &package,
+					   &name, &version, &arch))
+		printf("%s-%s\n", name, version);
+	razor_package_iterator_destroy(pi);
+
+	razor_set_destroy(set);
+
+	return 0;
+}
+
+static int
+command_list_package_files(int argc, const char *argv[])
+{
+	struct razor_set *set;
+
+	set = razor_set_open(repo_filename);
+	razor_set_open_files(set, "system-files.repo");
+	if (set == NULL)
+		return 1;
+	razor_set_list_package_files(set, argv[0]);
+	razor_set_destroy(set);
+
+	return 0;
+}
+
+static void
+list_packages_for_property(struct razor_set *set,
+			   struct razor_property *property)
+{
+	struct razor_package_iterator *pi;
+	struct razor_package *package;
+	const char *name, *version, *arch;
+
+	pi = razor_package_iterator_create_for_property(set, property);
+	while (razor_package_iterator_next(pi, &package,
+					   &name, &version, &arch))
+		printf("%s-%s.%s\n", name, version, arch);
+	razor_package_iterator_destroy(pi);
+}
+
+static int
+list_property_packages(const char *ref_name,
+		       const char *ref_version,
+		       uint32_t type)
+{
+	struct razor_set *set;
+	struct razor_property *property;
+	struct razor_property_iterator *pi;
+	const char *name, *version;
+	uint32_t flags;
+
+	if (ref_name == NULL)
+		return 0;
+
+	set = razor_set_open(repo_filename);
+	if (set == NULL)
+		return 1;
+
+	pi = razor_property_iterator_create(set, NULL);
+	while (razor_property_iterator_next(pi, &property,
+					    &name, &flags, &version)) {
+		if (strcmp(ref_name, name) != 0)
+			continue;
+		if (ref_version &&
+		    (flags & RAZOR_PROPERTY_RELATION_MASK) == RAZOR_PROPERTY_EQUAL &&
+		    strcmp(ref_version, version) != 0)
+			continue;
+		if ((flags & RAZOR_PROPERTY_TYPE_MASK) != type)
+			continue;
+
+		list_packages_for_property(set, property);
+	}
+	razor_property_iterator_destroy(pi);
+
+	return 0;
+}
+
+static int
+command_what_requires(int argc, const char *argv[])
+{
+	return list_property_packages(argv[0], argv[1],
+				      RAZOR_PROPERTY_REQUIRES);
+}
+
+static int
+command_what_provides(int argc, const char *argv[])
+{
+	return list_property_packages(argv[0], argv[1],
+				      RAZOR_PROPERTY_PROVIDES);
+}
+
+static int
+show_progress(void *clientp,
+	      double dltotal, double dlnow, double ultotal, double ulnow)
+{
+	const char *file = clientp;
+
+	if (!dlnow < dltotal)
+		fprintf(stderr, "\rdownloading %s, %dkB/%dkB",
+			file, (int) dlnow / 1024, (int) dltotal / 1024);
+
+	return 0;
+}
+
+static int
+download_if_missing(const char *url, const char *file)
+{
+	CURL *curl;
+	struct stat buf;
+	char error[256];
+	FILE *fp;
+	CURLcode res;
+	long response;
+
+	curl = curl_easy_init();
+	if (curl == NULL)
+		return 1;
+
+	curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, error);
+	curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);
+	curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, show_progress);
+	curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, file);
+
+	if (stat(file, &buf) < 0) {
+		fp = fopen(file, "w");
+		if (fp == NULL) {
+			fprintf(stderr,
+				"failed to open %s for writing\n", file);
+			return -1;
+		}
+		curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
+		curl_easy_setopt(curl, CURLOPT_URL, url);
+		res = curl_easy_perform(curl);
+		fclose(fp);
+		if (res != CURLE_OK) {
+			fprintf(stderr, "curl error: %s\n", error);
+			unlink(file);
+			return -1;
+		}
+		res = curl_easy_getinfo(curl,
+					CURLINFO_RESPONSE_CODE, &response);
+		if (res != CURLE_OK) {
+			fprintf(stderr, "curl error: %s\n", error);
+                        unlink(file);
+                        return -1;
+		}
+		if (response != 200) {
+			fprintf(stderr, " - failed %ld\n", response);
+                        unlink(file);
+                        return -1;
+		}
+		fprintf(stderr, "\n");
+	}
+
+	curl_easy_cleanup(curl);
+
+	return 0;
+}
+
+#define YUM_URL "http://download.fedora.redhat.com" \
+	"/pub/fedora/linux/development/i386/os"
+
+static int
+command_import_yum(int argc, const char *argv[])
+{
+	struct razor_set *set;
+	char buffer[512];
+
+	printf("downloading from %s.\n", yum_url);
+	snprintf(buffer, sizeof buffer,
+		 "%s/repodata/primary.xml.gz", yum_url);
+	if (download_if_missing(buffer, "primary.xml.gz") < 0)
+		return -1;
+	snprintf(buffer, sizeof buffer,
+		 "%s/repodata/filelists.xml.gz", yum_url);
+	if (download_if_missing(buffer, "filelists.xml.gz") < 0)
+		return -1;
+
+	set = razor_set_create_from_yum();
+	if (set == NULL)
+		return 1;
+	razor_set_write(set, rawhide_repo_filename, RAZOR_REPO_FILE_MAIN);
+	razor_set_write(set, "rawhide-details.repo", RAZOR_REPO_FILE_DETAILS);
+	razor_set_write(set, "rawhide-files.repo", RAZOR_REPO_FILE_FILES);
+	razor_set_destroy(set);
+	printf("wrote %s\n", rawhide_repo_filename);
+
+	return 0;
+}
+
+static int
+command_import_rpmdb(int argc, const char *argv[])
+{
+	struct razor_set *set;
+
+	set = razor_set_create_from_rpmdb();
+	if (set == NULL)
+		return 1;
+	razor_set_write(set, repo_filename, RAZOR_REPO_FILE_MAIN);
+	razor_set_write(set, "system-details.repo", RAZOR_REPO_FILE_DETAILS);
+	razor_set_write(set, "system-files.repo", RAZOR_REPO_FILE_FILES);
+	razor_set_destroy(set);
+	printf("wrote %s\n", repo_filename);
+
+	return 0;
+}
+
+static int
+mark_packages_for_update(struct razor_transaction *trans,
+			 struct razor_set *set, const char *pattern)
+{
+	struct razor_package_iterator *pi;
+	struct razor_package *package;
+	const char *name, *version, *arch;
+	int matches = 0;
+
+	pi = razor_package_iterator_create(set);
+	while (razor_package_iterator_next(pi, &package,
+					   &name, &version, &arch)) {
+		if (pattern && fnmatch(pattern, name, 0) == 0) {
+			razor_transaction_update_package(trans, package);
+			matches++;
+		}
+	}
+	razor_package_iterator_destroy(pi);
+
+	return matches;
+}
+
+static int
+mark_packages_for_removal(struct razor_transaction *trans,
+			  struct razor_set *set, const char *pattern)
+{
+	struct razor_package_iterator *pi;
+	struct razor_package *package;
+	const char *name, *version, *arch;
+	int matches = 0;
+
+	pi = razor_package_iterator_create(set);
+	while (razor_package_iterator_next(pi, &package,
+					   &name, &version, &arch)) {
+		if (pattern && fnmatch(pattern, name, 0) == 0) {
+			razor_transaction_remove_package(trans, package);
+			matches++;
+		}
+	}
+	razor_package_iterator_destroy(pi);
+
+	return matches;
+}
+
+static int
+command_update(int argc, const char *argv[])
+{
+	struct razor_set *set, *upstream;
+	struct razor_transaction *trans;
+	int i, errors;
+
+	set = razor_set_open(repo_filename);
+	upstream = razor_set_open(rawhide_repo_filename);
+	if (set == NULL || upstream == NULL)
+		return 1;
+
+	trans = razor_transaction_create(set, upstream);
+	if (argc == 0)
+		razor_transaction_update_all(trans);
+	for (i = 0; i < argc; i++) {
+		if (mark_packages_for_update(trans, set, argv[i]) == 0) {
+			fprintf(stderr, "no match for %s\n", argv[i]);
+			return 1;
+		}
+	}
+
+	errors = razor_transaction_resolve(trans);
+	if (errors)
+		return 1;
+
+	set = razor_transaction_finish(trans);
+	razor_set_write(set, updated_repo_filename, RAZOR_REPO_FILE_MAIN);
+	razor_set_destroy(set);
+	razor_set_destroy(upstream);
+	printf("wrote system-updated.repo\n");
+
+	return 0;
+}
+
+static int
+command_remove(int argc, const char *argv[])
+{
+	struct razor_set *set, *upstream;
+	struct razor_transaction *trans;
+	int i, errors;
+
+	set = razor_set_open(repo_filename);
+	if (set == NULL)
+		return 1;
+
+	upstream = razor_set_create();
+	trans = razor_transaction_create(set, upstream);
+	for (i = 0; i < argc; i++) {
+		if (mark_packages_for_removal(trans, set, argv[i]) == 0) {
+			fprintf(stderr, "no match for %s\n", argv[i]);
+			return 1;
+		}
+	}
+
+	errors = razor_transaction_resolve(trans);
+	if (errors)
+		return 1;
+
+	set = razor_transaction_finish(trans);
+	razor_set_write(set, updated_repo_filename, RAZOR_REPO_FILE_MAIN);
+	razor_set_destroy(set);
+	razor_set_destroy(upstream);
+	printf("wrote system-updated.repo\n");
+
+	return 0;
+}
+
+static void
+print_diff(const char *name,
+	   const char *old_version, const char *new_version, const char *arch,
+	   void *data)
+{
+	if (old_version)
+		printf("removing %s %s\n", name, old_version);
+	else
+		printf("install %s %s\n", name, new_version);
+}
+
+static int
+command_diff(int argc, const char *argv[])
+{
+	struct razor_set *set, *updated;
+
+	set = razor_set_open(repo_filename);
+	updated = razor_set_open(updated_repo_filename);
+	if (set == NULL || updated == NULL)
+		return 1;
+
+	razor_set_diff(set, updated, print_diff, NULL);
+
+	razor_set_destroy(set);
+	razor_set_destroy(updated);
+
+	return 0;
+}
+
+static int
+command_import_rpms(int argc, const char *argv[])
+{
+	DIR *dir;
+	struct dirent *de;
+	struct razor_importer *importer;
+	struct razor_set *set;
+	struct razor_rpm *rpm;
+	int len;
+	char filename[256];
+	const char *dirname = argv[0];
+
+	if (dirname == NULL) {
+		fprintf(stderr, "usage: razor import-rpms DIR\n");
+		return -1;
+	}
+
+	dir = opendir(dirname);
+	if (dir == NULL) {
+		fprintf(stderr, "couldn't read dir %s\n", dirname);
+		return -1;
+	}
+
+	importer = razor_importer_new();
+
+	while (de = readdir(dir), de != NULL) {
+		len = strlen(de->d_name);
+		if (len < 5 || strcmp(de->d_name + len - 4, ".rpm") != 0)
+		    continue;
+		snprintf(filename, sizeof filename,
+			 "%s/%s", dirname, de->d_name);
+		rpm = razor_rpm_open(filename);
+		if (rpm == NULL) {
+			fprintf(stderr,
+				"failed to open rpm \"%s\"\n", filename);
+			continue;
+		}
+		if (razor_importer_add_rpm(importer, rpm)) {
+			fprintf(stderr, "couldn't import %s\n", filename);
+			break;
+		}
+		razor_rpm_close(rpm);
+	}
+
+	if (de != NULL) {
+		razor_importer_destroy(importer);
+		return -1;
+	}
+
+	set = razor_importer_finish(importer);
+
+	razor_set_write(set, repo_filename, RAZOR_REPO_FILE_MAIN);
+	razor_set_destroy(set);
+	printf("wrote %s\n", repo_filename);
+
+	return 0;
+}
+
+static void
+download_package(const char *name,
+		 const char *old_version,
+		 const char *new_version,
+		 const char *arch,
+		 void *data)
+{
+	char file[PATH_MAX], url[256];
+	const char *v;
+	int *errors = data;
+
+	if (old_version)
+		return;
+
+	/* Skip epoch */
+	v = strchr(new_version, ':');
+	if (v != NULL)
+		v = v + 1;
+	else
+		v = new_version;
+
+	snprintf(url, sizeof url,
+		 "%s/Packages/%s-%s.%s.rpm", yum_url, name, v, arch);
+	snprintf(file, sizeof file,
+		 "rpms/%s-%s.%s.rpm", name, v, arch);
+	if (download_if_missing(url, file) < 0)
+		(*errors)++;
+}
+
+static void
+install_package(const char *name,
+		const char *old_version,
+		const char *new_version,
+		const char *arch,
+		void *data)
+{
+	const char *v, *root = data;
+	char file[PATH_MAX];
+	struct razor_rpm *rpm;
+
+	if (old_version) {
+		printf("removing %s %s not handled\n", name, old_version);
+		return;
+	}
+
+	/* Skip epoch */
+	v = strchr(new_version, ':');
+	if (v != NULL)
+		v = v + 1;
+	else
+		v = new_version;
+
+	printf("install %s %s\n", name, v);
+	snprintf(file, sizeof file, "rpms/%s-%s.%s.rpm", name, v, arch);
+
+ 	rpm = razor_rpm_open(file);
+	if (rpm == NULL) {
+		fprintf(stderr, "failed to open rpm %s\n", file);
+		return;
+	}
+	if (razor_rpm_install(rpm, root) < 0) {
+		fprintf(stderr,
+			"failed to install rpm %s\n", file);
+		return;
+	}
+	razor_rpm_close(rpm);
+}
+
+static int
+command_install(int argc, const char *argv[])
+{
+	struct razor_root *root;
+	struct razor_set *upstream, *next;
+	struct razor_transaction *trans;
+	int i = 0, errors, dependencies = 1;
+
+	if (i < argc && strcmp(argv[i], "--no-dependencies") == 0) {
+		dependencies = 0;
+		i++;
+	}
+
+	root = razor_root_open(install_root, RAZOR_ROOT_OPEN_WRITE);
+	upstream = razor_set_open(rawhide_repo_filename);
+	trans = razor_root_create_transaction(root, upstream);
+
+	for (; i < argc; i++) {
+		if (mark_packages_for_update(trans, upstream, argv[i]) == 0) {
+			fprintf(stderr, "no package matched %s\n", argv[i]);
+			razor_root_close(root);
+			return 1;
+		}
+	}
+
+	if (dependencies) {
+		razor_transaction_resolve(trans);
+		if (razor_transaction_describe(trans) > 0) {
+			razor_root_close(root);
+			return 1;
+		}
+	}
+
+	next = razor_transaction_finish(trans);
+
+	razor_root_update(root, next);
+
+	if (mkdir("rpms", 0777) && errno != EEXIST) {
+		fprintf(stderr, "failed to create rpms directory.\n");
+		razor_root_close(root);
+		return 1;
+	}
+
+	errors = 0;
+	razor_root_diff(root, download_package, &errors);
+	if (errors > 0) {
+		fprintf(stderr, "failed to download %d packages\n", errors);
+		razor_root_close(root);
+                return 1;
+        }
+
+	/* FIXME: We need to figure out the right install order here,
+	 * so the post and pre scripts can run. */
+	razor_root_diff(root, install_package, (void *) install_root);
+
+	razor_set_destroy(next);
+	razor_set_destroy(upstream);
+
+	return razor_root_commit(root);
+}
+
+static int
+command_init(int argc, const char *argv[])
+{
+	return razor_root_create(install_root);
+}
+
+static int
+command_download(int argc, const char *argv[])
+{
+	struct razor_set *set;
+	struct razor_package_iterator *pi;
+	struct razor_package *package;
+	const char *pattern = argv[0], *name, *version, *arch;
+	char url[256], file[256];
+	int matches = 0;
+
+	if (mkdir("rpms", 0777) && errno != EEXIST) {
+		fprintf(stderr, "failed to create rpms directory.\n");
+		return 1;
+	}
+
+	set = razor_set_open(rawhide_repo_filename);
+	pi = razor_package_iterator_create(set);
+	while (razor_package_iterator_next(pi, &package,
+					   &name, &version, &arch)) {
+		if (pattern && fnmatch(pattern, name, 0) != 0)
+			continue;
+
+		matches++;
+		snprintf(url, sizeof url,
+			 "%s/Packages/%s-%s.%s.rpm",
+			 yum_url, name, version, arch);
+		snprintf(file, sizeof file,
+			 "rpms/%s-%s.%s.rpm", name, version, arch);
+		download_if_missing(url, file);
+	}
+	razor_package_iterator_destroy(pi);
+	razor_set_destroy(set);
+
+	if (matches == 0)
+		fprintf(stderr, "no packages matched \"%s\"\n", pattern);
+	else if (matches == 1)
+		fprintf(stderr, "downloaded 1 package\n");
+	else
+		fprintf(stderr, "downloaded %d packages\n", matches);
+
+	return 0;
+}
+
+static int
+command_info(int argc, const char *argv[])
+{
+	struct razor_set *set;
+	struct razor_package_iterator *pi;
+	struct razor_package *package;
+	const char *pattern = argv[0], *name, *version, *arch;
+	const char *summary, *description, *url, *license;
+
+	set = razor_set_open(repo_filename);
+	razor_set_open_details(set, "system-details.repo");
+	pi = razor_package_iterator_create(set);
+	while (razor_package_iterator_next(pi, &package,
+					   &name, &version, &arch)) {
+		if (pattern && fnmatch(pattern, name, 0) != 0)
+			continue;
+
+		razor_package_get_details (set, package, &summary, &description,
+					   &url, &license);
+
+		printf ("Name:        %s\n", name);
+		printf ("Arch:        %s\n", arch);
+		printf ("Version:     %s\n", version);
+		printf ("URL:         %s\n", url);
+		printf ("License:     %s\n", license);
+		printf ("Summary:     %s\n", summary);
+		printf ("Description:\n");
+		printf ("%s\n", description);
+		printf ("\n");
+	}
+	razor_package_iterator_destroy(pi);
+	razor_set_destroy(set);
+
+	return 0;
+}
+
+static struct {
+	const char *name;
+	const char *description;
+	int (*func)(int argc, const char *argv[]);
+} razor_commands[] = {
+	{ "list", "list all packages", command_list },
+	{ "list-requires", "list all requires for the given package", command_list_requires },
+	{ "list-provides", "list all provides for the given package", command_list_provides },
+	{ "list-obsoletes", "list all obsoletes for the given package", command_list_obsoletes },
+	{ "list-conflicts", "list all conflicts for the given package", command_list_conflicts },
+	{ "list-files", "list files for package set", command_list_files },
+	{ "list-file-packages", "list packages owning file", command_list_file_packages },
+	{ "list-package-files", "list files in package", command_list_package_files },
+	{ "what-requires", "list the packages that have the given requires", command_what_requires },
+	{ "what-provides", "list the packages that have the given provides", command_what_provides },
+	{ "import-yum", "import yum metadata files", command_import_yum },
+	{ "import-rpmdb", "import the system rpm database", command_import_rpmdb },
+	{ "import-rpms", "import rpms from the given directory", command_import_rpms },
+	{ "update", "update all or specified packages", command_update },
+	{ "remove", "remove specified packages", command_remove },
+	{ "diff", "show diff between two package sets", command_diff },
+	{ "install", "install rpm", command_install },
+	{ "init", "init razor root", command_init },
+	{ "download", "download packages", command_download },
+	{ "info", "display package details", command_info }
+};
+
+static int
+usage(void)
+{
+	int i;
+
+	printf("usage:\n");
+	for (i = 0; i < ARRAY_SIZE(razor_commands); i++)
+		printf("  %-20s%s\n",
+		       razor_commands[i].name, razor_commands[i].description);
+
+	return 1;
+}
+
+int
+main(int argc, const char *argv[])
+{
+	char *repo;
+	int i;
+
+	repo = getenv("RAZOR_REPO");
+	if (repo != NULL)
+		repo_filename = repo;
+
+	yum_url = getenv("YUM_URL");
+	if (yum_url == NULL)
+		yum_url = YUM_URL;
+
+	if (argc < 2)
+		return usage();
+
+	for (i = 0; i < ARRAY_SIZE(razor_commands); i++)
+		if (strcmp(razor_commands[i].name, argv[1]) == 0)
+			return razor_commands[i].func(argc - 2, argv + 2);
+
+	return usage();
+}