1.1 --- a/razor-root.c Sun Jun 15 23:15:59 2008 -0400
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,168 +0,0 @@
1.4 -#include <stdlib.h>
1.5 -#include <stdint.h>
1.6 -#include <stdio.h>
1.7 -#include <sys/stat.h>
1.8 -#include <dirent.h>
1.9 -#include <unistd.h>
1.10 -#include <fcntl.h>
1.11 -#include "razor.h"
1.12 -#include "razor-internal.h"
1.13 -
1.14 -static const char system_repo_filename[] = "system.repo";
1.15 -static const char next_repo_filename[] = "system-next.repo";
1.16 -static const char razor_root_path[] = "/var/lib/razor";
1.17 -
1.18 -struct razor_root {
1.19 - struct razor_set *system;
1.20 - struct razor_set *next;
1.21 - int fd;
1.22 - char path[PATH_MAX];
1.23 - char new_path[PATH_MAX];
1.24 -};
1.25 -
1.26 -int
1.27 -razor_root_create(const char *root)
1.28 -{
1.29 - struct stat buf;
1.30 - struct razor_set *set;
1.31 - char path[PATH_MAX];
1.32 -
1.33 - if (stat(root, &buf) < 0) {
1.34 - if (mkdir(root, 0777) < 0) {
1.35 - fprintf(stderr,
1.36 - "could not create install root \"%s\"\n",
1.37 - root);
1.38 - return -1;
1.39 - }
1.40 - fprintf(stderr, "created install root \"%s\"\n", root);
1.41 - } else if (!S_ISDIR(buf.st_mode)) {
1.42 - fprintf(stderr,
1.43 - "install root \"%s\" exists, but is not a directory\n",
1.44 - root);
1.45 - return -1;
1.46 - }
1.47 -
1.48 - snprintf(path, sizeof path, "%s/%s",
1.49 - razor_root_path, system_repo_filename);
1.50 - if (razor_create_dir(root, path) < 0) {
1.51 - fprintf(stderr, "could not create %s%s\n",
1.52 - root, razor_root_path);
1.53 - return -1;
1.54 - }
1.55 -
1.56 - set = razor_set_create();
1.57 - snprintf(path, sizeof path, "%s%s/%s",
1.58 - root, razor_root_path, system_repo_filename);
1.59 - if (stat(path, &buf) == 0) {
1.60 - fprintf(stderr,
1.61 - "a razor install root is already initialized\n");
1.62 - return -1;
1.63 - }
1.64 - if (razor_set_write(set, path) < 0) {
1.65 - fprintf(stderr, "could not write initial package set\n");
1.66 - return -1;
1.67 - }
1.68 - razor_set_destroy(set);
1.69 -
1.70 - return 0;
1.71 -}
1.72 -
1.73 -struct razor_root *
1.74 -razor_root_open(const char *root, int flags)
1.75 -{
1.76 - struct razor_root *image;
1.77 -
1.78 - image = malloc(sizeof *image);
1.79 - if (image == NULL)
1.80 - return NULL;
1.81 -
1.82 - /* Create the new next repo file up front to ensure exclusive
1.83 - * access. */
1.84 - snprintf(image->new_path, sizeof image->new_path,
1.85 - "%s%s/%s", root, root, next_repo_filename);
1.86 - image->fd = open(image->new_path,
1.87 - O_CREAT | O_WRONLY | O_TRUNC | O_EXCL, 0666);
1.88 - if (image->fd < 0) {
1.89 - fprintf(stderr, "failed to get lock file, "
1.90 - "maybe previous operation crashed?\n");
1.91 -
1.92 - /* FIXME: Use fcntl advisory locking on the system
1.93 - * package set file to figure out whether previous
1.94 - * operation crashed or is still in progress. */
1.95 -
1.96 - free(image);
1.97 - return NULL;
1.98 - }
1.99 -
1.100 - snprintf(image->path, sizeof image->path,
1.101 - "%s%s/%s", root, razor_root_path, system_repo_filename);
1.102 - image->system = razor_set_open(image->path);
1.103 - if (image->system == NULL) {
1.104 - unlink(image->new_path);
1.105 - close(image->fd);
1.106 - free(image);
1.107 - return NULL;
1.108 - }
1.109 -
1.110 - return image;
1.111 -}
1.112 -
1.113 -struct razor_set *
1.114 -razor_root_open_read_only(const char *root)
1.115 -{
1.116 - char path[PATH_MAX];
1.117 -
1.118 - snprintf(path, sizeof path, "%s%s/%s",
1.119 - root, razor_root_path, system_repo_filename);
1.120 -
1.121 - return razor_set_open(path);
1.122 -}
1.123 -
1.124 -struct razor_transaction *
1.125 -razor_root_create_transaction(struct razor_root *image,
1.126 - struct razor_set *upstream)
1.127 -{
1.128 - /* FIXME: This should take a number of upstream repos. */
1.129 - return razor_transaction_create(image->system, upstream);
1.130 -}
1.131 -
1.132 -int
1.133 -razor_root_close(struct razor_root *image)
1.134 -{
1.135 - unlink(image->new_path);
1.136 - close(image->fd);
1.137 - free(image);
1.138 -
1.139 - return 0;
1.140 -}
1.141 -
1.142 -void
1.143 -razor_root_update(struct razor_root *root, struct razor_set *next)
1.144 -{
1.145 - razor_set_write_to_fd(next, root->fd);
1.146 - root->next = next;
1.147 -
1.148 - /* Sync the new repo file so the new package set is on disk
1.149 - * before we start upgrading. */
1.150 - fsync(root->fd);
1.151 - printf("wrote %s\n", root->new_path);
1.152 -}
1.153 -
1.154 -int
1.155 -razor_root_commit(struct razor_root *image)
1.156 -{
1.157 - /* Make it so. */
1.158 - rename(image->new_path, image->path);
1.159 - printf("renamed %s to %s\n", image->new_path, image->path);
1.160 - close(image->fd);
1.161 - free(image);
1.162 -
1.163 - return 0;
1.164 -}
1.165 -
1.166 -void
1.167 -razor_root_diff(struct razor_root *root,
1.168 - razor_package_callback_t callback, void *data)
1.169 -{
1.170 - return razor_set_diff(root->system, root->next, callback, data);
1.171 -}