-/* Cumulus: Smart Filesystem Backup to Dumb Servers
- *
- * Copyright (C) 2006-2009 The Regents of the University of California
- * Copyright (C) 2012 Google Inc.
- * Written by Michael Vrable <mvrable@cs.ucsd.edu>
+/* Cumulus: Efficient Filesystem Backup to the Cloud
+ * Copyright (C) 2006-2009, 2012 The Cumulus Developers
+ * See the AUTHORS file for a list of contributors.
*
* 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
* invocations to help in creating incremental snapshots. */
LocalDb *db;
-/* Keep track of all segments which are needed to reconstruct the snapshot. */
-std::set<string> segment_list;
-
-/* Snapshot intent: 1=daily, 7=weekly, etc. This is not used directly, but is
- * stored in the local database and can help guide segment cleaning and
- * snapshot expiration policies. */
-double snapshot_intent = 1.0;
-
/* Selection of files to include/exclude in the snapshot. */
PathFilterList filter_rules;
/* Whether verbose output is enabled. */
bool verbose = false;
-/* Ensure that the given segment is listed as a dependency of the current
- * snapshot. */
-void add_segment(const string& segment)
-{
- segment_list.insert(segment);
-}
-
/* Attempts to open a regular file read-only, but with safety checks for files
* that might not be fully trusted. */
int safe_open(const string& path, struct stat *stat_buf)
i != old_blocks.end(); ++i) {
const ObjectReference &ref = *i;
object_list.push_back(ref.to_string());
- if (ref.is_normal())
- add_segment(ref.get_segment());
db->UseObject(ref);
}
size = stat_buf.st_size;
double block_age = 0.0;
ObjectReference ref;
- SHA1Checksum block_hash;
- block_hash.process(block_buf, bytes);
- string block_csum = block_hash.checksum_str();
+ Hash *hash = Hash::New();
+ hash->update(block_buf, bytes);
+ string block_csum = hash->digest_str();
+ delete hash;
if (all_zero) {
ref = ObjectReference(ObjectReference::REF_ZERO);
while (!refs.empty()) {
ref = refs.front(); refs.pop_front();
object_list.push_back(ref.to_string());
- if (ref.is_normal())
- add_segment(ref.get_segment());
db->UseObject(ref);
}
size += bytes;
" --signature-filter=COMMAND\n"
" program though which to filter descriptor\n"
" --scheme=NAME optional name for this snapshot\n"
- " --intent=FLOAT intended backup type: 1=daily, 7=weekly, ...\n"
- " (defaults to \"1\")\n"
+ " --intent=FLOAT DEPRECATED: ignored, and will be removed soon\n"
" --full-metadata do not re-use metadata from previous backups\n"
" --rebuild-statcache re-read all file data to verify statcache\n"
" -v --verbose list files as they are backed up\n"
{"dest", 1, 0, 0}, // 3
{"scheme", 1, 0, 0}, // 4
{"signature-filter", 1, 0, 0}, // 5
- {"intent", 1, 0, 0}, // 6
+ {"intent", 1, 0, 0}, // 6, DEPRECATED
{"full-metadata", 0, 0, 0}, // 7
{"tmpdir", 1, 0, 0}, // 8
{"upload-script", 1, 0, 0}, // 9
signature_filter = optarg;
break;
case 6: // --intent
- snapshot_intent = atof(optarg);
- if (snapshot_intent <= 0)
- snapshot_intent = 1;
+ fprintf(stderr,
+ "Warning: The --intent= option is deprecated and will "
+ "be removed in the future.\n");
break;
case 7: // --full-metadata
flag_full_metadata = true;
* a temporary directory for staging files. Otherwise, write backups
* directly to the destination directory. */
if (backup_script != "") {
- tmp_dir = tmp_dir + "/lbs." + generate_uuid();
+ tmp_dir = tmp_dir + "/cumulus." + generate_uuid();
if (mkdir(tmp_dir.c_str(), 0700) < 0) {
fprintf(stderr, "Cannot create temporary directory %s: %m\n",
tmp_dir.c_str());
* snapshot. */
string database_path = localdb_dir + "/localdb.sqlite";
db = new LocalDb;
- db->Open(database_path.c_str(), desc_buf, backup_scheme.c_str(),
- snapshot_intent);
+ db->Open(database_path.c_str(), desc_buf, backup_scheme.c_str());
tss = new TarSegmentStore(remote, db);
}
ObjectReference root_ref = metawriter->close();
- add_segment(root_ref.get_segment());
string backup_root = root_ref.to_string();
delete metawriter;
checksum_filename += backup_scheme + "-";
checksum_filename = checksum_filename + desc_buf + "." + csum_type + "sums";
RemoteFile *checksum_file = remote->alloc_file(checksum_filename,
- "checksums");
+ "meta");
FILE *checksums = fdopen(checksum_file->get_fd(), "w");
+ std::set<string> segment_list = db->GetUsedSegments();
for (std::set<string>::iterator i = segment_list.begin();
i != segment_list.end(); ++i) {
string seg_path, seg_csum;
- if (db->GetSegmentChecksum(*i, &seg_path, &seg_csum)) {
+ if (db->GetSegmentMetadata(*i, &seg_path, &seg_csum)) {
const char *raw_checksum = NULL;
if (strncmp(seg_csum.c_str(), csum_type,
strlen(csum_type)) == 0) {
string desc_filename = "snapshot-";
if (backup_scheme.size() > 0)
desc_filename += backup_scheme + "-";
- desc_filename = desc_filename + desc_buf + ".lbs";
+ desc_filename = desc_filename + desc_buf + ".cumulus";
RemoteFile *descriptor_file = remote->alloc_file(desc_filename,
"snapshots");
fprintf(descriptor, "Date: %s\n", desc_buf);
if (backup_scheme.size() > 0)
fprintf(descriptor, "Scheme: %s\n", backup_scheme.c_str());
- fprintf(descriptor, "Backup-Intent: %g\n", snapshot_intent);
fprintf(descriptor, "Root: %s\n", backup_root.c_str());
if (csum.size() > 0) {
projects / cumulus.git / blobdiff