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bin/xbps-rindex: better error handling for writing repodata archives

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This fixes issues when writes fail (as example if the disk is full),
where xbps would create empty repodata or stagedata archives.
This commit is contained in:
Duncan Overbruck 2019-10-25 23:00:35 +02:00 committed by Juan RP
parent 04d5554ed2
commit 7b4a925302
2 changed files with 34 additions and 22 deletions
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48
bin/xbps-rindex/repoflush.c
View File

@ -60,34 +60,37 @@ repodata_flush(struct xbps_handle *xhp, const char *repodir,
umask(mask);
/* Create and write our repository archive */
ar = archive_write_new();
assert(ar);
if (ar == NULL)
return false;
if (compression == NULL || strcmp(compression, "gzip") == 0) {
archive_write_add_filter_gzip(ar);
archive_write_set_options(ar, "compression-level=9");
} else if (strcmp(compression, "bzip2") == 0) {
archive_write_add_filter_bzip2(ar);
archive_write_set_options(ar, "compression-level=9");
} else if (strcmp(compression, "lz4") == 0) {
archive_write_add_filter_lz4(ar);
archive_write_set_options(ar, "compression-level=9");
} else if (strcmp(compression, "xz") == 0) {
archive_write_add_filter_xz(ar);
} else if (strcmp(compression, "zstd") == 0) {
archive_write_add_filter_zstd(ar);
archive_write_set_options(ar, "compression-level=19");
if (compression == NULL || strcmp(compression, "gzip") == 0) {
archive_write_add_filter_gzip(ar);
archive_write_set_options(ar, "compression-level=9");
} else if (strcmp(compression, "bzip2") == 0) {
archive_write_add_filter_bzip2(ar);
archive_write_set_options(ar, "compression-level=9");
} else if (strcmp(compression, "lz4") == 0) {
archive_write_add_filter_lz4(ar);
archive_write_set_options(ar, "compression-level=9");
} else if (strcmp(compression, "xz") == 0) {
archive_write_add_filter_xz(ar);
} else if (strcmp(compression, "zstd") == 0) {
archive_write_add_filter_zstd(ar);
archive_write_set_options(ar, "compression-level=19");
} else if (strcmp(compression, "none") == 0) {
/* empty */
} else {
/* empty */
} else {
return false;
}
archive_write_set_format_pax_restricted(ar);
archive_write_open_fd(ar, repofd);
if (archive_write_open_fd(ar, repofd) != ARCHIVE_OK)
return false;
/* XBPS_REPOIDX */
buf = xbps_dictionary_externalize(idx);
assert(buf);
if (buf == NULL)
return false;
rv = xbps_archive_append_buf(ar, buf, strlen(buf),
XBPS_REPOIDX, 0644, "root", "root");
free(buf);
@ -98,6 +101,8 @@ repodata_flush(struct xbps_handle *xhp, const char *repodir,
if (meta == NULL) {
/* fake entry */
buf = strdup("DEADBEEF");
if (buf == NULL)
return false;
} else {
buf = xbps_dictionary_externalize(meta);
}
@ -108,7 +113,10 @@ repodata_flush(struct xbps_handle *xhp, const char *repodir,
return false;
/* Write data to tempfile and rename */
archive_write_finish(ar);
if (archive_write_close(ar) != ARCHIVE_OK)
return false;
if (archive_write_free(ar) != ARCHIVE_OK)
return false;
#ifdef HAVE_FDATASYNC
fdatasync(repofd);
#else

8
lib/archive.c
View File

@ -83,7 +83,8 @@ xbps_archive_append_buf(struct archive *ar, const void *buf, const size_t buflen
assert(gname);
entry = archive_entry_new();
assert(entry);
if (entry == NULL)
return archive_errno(ar);
archive_entry_set_filetype(entry, AE_IFREG);
archive_entry_set_perm(entry, mode);
@ -100,7 +101,10 @@ xbps_archive_append_buf(struct archive *ar, const void *buf, const size_t buflen
archive_entry_free(entry);
return archive_errno(ar);
}
archive_write_finish_entry(ar);
if (archive_write_finish_entry(ar) != ARCHIVE_OK) {
archive_entry_free(entry);
return archive_errno(ar);
}
archive_entry_free(entry);
return 0;