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path: root/lib/libalpm/sync.c
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-rw-r--r--lib/libalpm/sync.c193
1 files changed, 118 insertions, 75 deletions
diff --git a/lib/libalpm/sync.c b/lib/libalpm/sync.c
index 54b9794a..52049a8c 100644
--- a/lib/libalpm/sync.c
+++ b/lib/libalpm/sync.c
@@ -686,11 +686,11 @@ static int apply_deltas(alpm_handle_t *handle)
} else {
/* len = cachedir len + from len + '/' + null */
len = strlen(cachedir) + strlen(d->from) + 2;
- CALLOC(from, len, sizeof(char), RET_ERR(handle, ALPM_ERR_MEMORY, 1));
+ MALLOC(from, len, RET_ERR(handle, ALPM_ERR_MEMORY, 1));
snprintf(from, len, "%s/%s", cachedir, d->from);
}
len = strlen(cachedir) + strlen(d->to) + 2;
- CALLOC(to, len, sizeof(char), RET_ERR(handle, ALPM_ERR_MEMORY, 1));
+ MALLOC(to, len, RET_ERR(handle, ALPM_ERR_MEMORY, 1));
snprintf(to, len, "%s/%s", cachedir, d->to);
/* build the patch command */
@@ -794,11 +794,92 @@ static int validate_deltas(alpm_handle_t *handle, alpm_list_t *deltas)
return 0;
}
+static struct dload_payload *build_payload(alpm_handle_t *handle,
+ const char *filename, size_t size, alpm_list_t *servers)
+{
+ struct dload_payload *payload;
+
+ CALLOC(payload, 1, sizeof(*payload), RET_ERR(handle, ALPM_ERR_MEMORY, NULL));
+ STRDUP(payload->remote_name, filename, RET_ERR(handle, ALPM_ERR_MEMORY, NULL));
+ payload->max_size = size;
+ payload->servers = servers;
+ return payload;
+}
+
+static int find_dl_candidates(alpm_db_t *repo, alpm_list_t **files, alpm_list_t **deltas)
+{
+ alpm_list_t *i;
+ alpm_handle_t *handle = repo->handle;
+
+ for(i = handle->trans->add; i; i = i->next) {
+ alpm_pkg_t *spkg = i->data;
+
+ if(spkg->origin != PKG_FROM_FILE && repo == spkg->origin_data.db) {
+ alpm_list_t *delta_path = spkg->delta_path;
+
+ if(!repo->servers) {
+ handle->pm_errno = ALPM_ERR_SERVER_NONE;
+ _alpm_log(handle, ALPM_LOG_ERROR, "%s: %s\n",
+ alpm_strerror(handle->pm_errno), repo->treename);
+ return 1;
+ }
+
+ if(delta_path) {
+ /* using deltas */
+ alpm_list_t *dlts;
+ for(dlts = delta_path; dlts; dlts = dlts->next) {
+ alpm_delta_t *delta = dlts->data;
+ if(delta->download_size != 0) {
+ struct dload_payload *payload = build_payload(
+ handle, delta->delta, delta->download_size, repo->servers);
+ ASSERT(payload, return -1);
+ *files = alpm_list_add(*files, payload);
+ }
+ /* keep a list of all the delta files for md5sums */
+ *deltas = alpm_list_add(*deltas, delta);
+ }
+
+ } else if(spkg->download_size != 0) {
+ struct dload_payload *payload;
+ ASSERT(spkg->filename != NULL, RET_ERR(handle, ALPM_ERR_PKG_INVALID_NAME, -1));
+ payload = build_payload(handle, spkg->filename, spkg->size, repo->servers);
+ ASSERT(payload, return -1);
+ *files = alpm_list_add(*files, payload);
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int download_single_file(alpm_handle_t *handle, struct dload_payload *payload,
+ const char *cachedir)
+{
+ const alpm_list_t *server;
+
+ for(server = payload->servers; server; server = server->next) {
+ const char *server_url = server->data;
+ size_t len;
+
+ /* print server + filename into a buffer */
+ len = strlen(server_url) + strlen(payload->remote_name) + 2;
+ MALLOC(payload->fileurl, len, RET_ERR(handle, ALPM_ERR_MEMORY, -1));
+ snprintf(payload->fileurl, len, "%s/%s", server_url, payload->remote_name);
+ payload->handle = handle;
+ payload->allow_resume = 1;
+
+ if(_alpm_download(payload, cachedir, NULL) != -1) {
+ return 0;
+ }
+ }
+
+ return -1;
+}
+
static int download_files(alpm_handle_t *handle, alpm_list_t **deltas)
{
const char *cachedir;
- alpm_list_t *i, *j;
- alpm_list_t *files = NULL;
+ alpm_list_t *i, *files = NULL;
int errors = 0;
cachedir = _alpm_filecache_setup(handle);
@@ -817,91 +898,53 @@ static int download_files(alpm_handle_t *handle, alpm_list_t **deltas)
handle->totaldlcb(total_size);
}
- /* group sync records by repository and download */
for(i = handle->dbs_sync; i; i = i->next) {
- alpm_db_t *current = i->data;
-
- for(j = handle->trans->add; j; j = j->next) {
- alpm_pkg_t *spkg = j->data;
-
- if(spkg->origin != PKG_FROM_FILE && current == spkg->origin_data.db) {
- alpm_list_t *delta_path = spkg->delta_path;
- if(delta_path) {
- /* using deltas */
- alpm_list_t *dlts;
- for(dlts = delta_path; dlts; dlts = dlts->next) {
- alpm_delta_t *delta = dlts->data;
- if(delta->download_size != 0) {
- struct dload_payload *dpayload;
-
- CALLOC(dpayload, 1, sizeof(*dpayload), RET_ERR(handle, ALPM_ERR_MEMORY, -1));
- STRDUP(dpayload->remote_name, delta->delta, RET_ERR(handle, ALPM_ERR_MEMORY, -1));
- dpayload->max_size = delta->download_size;
-
- files = alpm_list_add(files, dpayload);
- }
- /* keep a list of all the delta files for md5sums */
- *deltas = alpm_list_add(*deltas, delta);
- }
+ errors += find_dl_candidates(i->data, &files, deltas);
+ }
- } else if(spkg->download_size != 0) {
- struct dload_payload *payload;
+ if(files) {
+ /* check for necessary disk space for download */
+ if(handle->checkspace) {
+ off_t *file_sizes;
+ size_t idx, num_files;
+ int ret;
- ASSERT(spkg->filename != NULL, RET_ERR(handle, ALPM_ERR_PKG_INVALID_NAME, -1));
- CALLOC(payload, 1, sizeof(*payload), RET_ERR(handle, ALPM_ERR_MEMORY, -1));
- STRDUP(payload->remote_name, spkg->filename, RET_ERR(handle, ALPM_ERR_MEMORY, -1));
- payload->max_size = spkg->size;
+ _alpm_log(handle, ALPM_LOG_DEBUG, "checking available disk space for download\n");
- files = alpm_list_add(files, payload);
- }
+ num_files = alpm_list_count(files);
+ CALLOC(file_sizes, num_files, sizeof(off_t), goto finish);
+ for(i = files, idx = 0; i; i = i->next, idx++) {
+ const struct dload_payload *payload = i->data;
+ file_sizes[idx] = payload->max_size;
}
- }
- if(files) {
- if(!current->servers) {
- handle->pm_errno = ALPM_ERR_SERVER_NONE;
- _alpm_log(handle, ALPM_LOG_ERROR, "%s: %s\n",
- alpm_strerror(handle->pm_errno), current->treename);
+ ret = _alpm_check_downloadspace(handle, cachedir, num_files, file_sizes);
+ free(file_sizes);
+
+ if(ret != 0) {
errors++;
- continue;
+ goto finish;
}
+ }
- EVENT(handle, ALPM_EVENT_RETRIEVE_START, current->treename, NULL);
- for(j = files; j; j = j->next) {
- struct dload_payload *payload = j->data;
- alpm_list_t *server;
- int ret = -1;
- for(server = current->servers; server; server = server->next) {
- const char *server_url = server->data;
- size_t len;
-
- /* print server + filename into a buffer */
- len = strlen(server_url) + strlen(payload->remote_name) + 2;
- MALLOC(payload->fileurl, len, RET_ERR(handle, ALPM_ERR_MEMORY, -1));
- snprintf(payload->fileurl, len, "%s/%s", server_url, payload->remote_name);
- payload->handle = handle;
- payload->allow_resume = 1;
-
- ret = _alpm_download(payload, cachedir, NULL);
- if(ret != -1) {
- break;
- }
- }
- if(ret == -1) {
- errors++;
- _alpm_log(handle, ALPM_LOG_WARNING, _("failed to retrieve some files from %s\n"),
- current->treename);
- }
+ EVENT(handle, ALPM_EVENT_RETRIEVE_START, NULL, NULL);
+ for(i = files; i; i = i->next) {
+ if(download_single_file(handle, i->data, cachedir) == -1) {
+ errors++;
+ _alpm_log(handle, ALPM_LOG_WARNING, _("failed to retrieve some files\n"));
}
-
- alpm_list_free_inner(files, (alpm_list_fn_free)_alpm_dload_payload_reset);
- FREELIST(files);
}
}
- for(j = handle->trans->add; j; j = j->next) {
- alpm_pkg_t *pkg = j->data;
+finish:
+ if(files) {
+ alpm_list_free_inner(files, (alpm_list_fn_free)_alpm_dload_payload_reset);
+ FREELIST(files);
+ }
+
+ for(i = handle->trans->add; i; i = i->next) {
+ alpm_pkg_t *pkg = i->data;
pkg->infolevel &= ~INFRQ_DSIZE;
pkg->download_size = 0;
}

Copyright © 2002-2022 Judd Vinet and Aaron Griffin. Copyright © 2022 Erich Eckner.
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