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/** |
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* This file is part of the CernVM File System. |
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*/ |
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#define __STDC_FORMAT_MACROS |
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#include "sync_mediator.h" |
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#include <fcntl.h> |
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#include <inttypes.h> |
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#include <unistd.h> |
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#include <cassert> |
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#include <cstdio> |
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#include <cstdlib> |
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#include "catalog_virtual.h" |
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#include "compression.h" |
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#include "fs_traversal.h" |
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#include "hash.h" |
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#include "smalloc.h" |
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#include "sync_union.h" |
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#include "upload.h" |
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#include "util/posix.h" |
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#include "util/string.h" |
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#include "util_concurrency.h" |
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using namespace std; // NOLINT |
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struct Counters { |
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perf::Counter *n_files_added; |
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perf::Counter *n_files_removed; |
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perf::Counter *n_files_changed; |
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perf::Counter *n_directories_added; |
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perf::Counter *n_directories_removed; |
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perf::Counter *n_directories_changed; |
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perf::Counter *sz_added_bytes; |
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perf::Counter *sz_removed_bytes; |
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explicit Counters(perf::StatisticsTemplate statistics) { |
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n_files_added = statistics.RegisterTemplated("n_files_added", |
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"Number of files added"); |
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n_files_removed = statistics.RegisterTemplated("n_files_removed", |
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"Number of files removed"); |
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n_files_changed = statistics.RegisterTemplated("n_files_changed", |
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"Number of files changed"); |
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n_directories_added = statistics.RegisterTemplated("n_directories_added", |
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"Number of directories added"); |
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n_directories_removed = |
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statistics.RegisterTemplated("n_directories_removed", |
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"Number of directories removed"); |
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n_directories_changed = |
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statistics.RegisterTemplated("n_directories_changed", |
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"Number of directories changed"); |
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sz_added_bytes = statistics.RegisterTemplated("sz_added_bytes", |
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"Number of bytes added"); |
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sz_removed_bytes = statistics.RegisterTemplated("sz_removed_bytes", |
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"Number of bytes removed"); |
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} |
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}; // Counters |
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namespace publish { |
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✗✓ |
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AbstractSyncMediator::~AbstractSyncMediator() {} |
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SyncMediator::SyncMediator(catalog::WritableCatalogManager *catalog_manager, |
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const SyncParameters *params, |
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perf::StatisticsTemplate statistics) : |
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catalog_manager_(catalog_manager), |
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union_engine_(NULL), |
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handle_hardlinks_(false), |
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params_(params), |
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changed_items_(0) |
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{ |
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int retval = pthread_mutex_init(&lock_file_queue_, NULL); |
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assert(retval == 0); |
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params->spooler->RegisterListener(&SyncMediator::PublishFilesCallback, this); |
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LogCvmfs(kLogPublish, kLogStdout, "Processing changes..."); |
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counters_ = new Counters(statistics); |
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} |
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SyncMediator::~SyncMediator() { |
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pthread_mutex_destroy(&lock_file_queue_); |
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} |
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void SyncMediator::RegisterUnionEngine(SyncUnion *engine) { |
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union_engine_ = engine; |
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handle_hardlinks_ = engine->SupportsHardlinks(); |
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} |
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/** |
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* The entry /.cvmfs or entries in /.cvmfs/ must not be added, removed or |
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* modified manually. The directory /.cvmfs is generated by the VirtualCatalog |
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* class if requested. |
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*/ |
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void SyncMediator::EnsureAllowed(SharedPtr<SyncItem> entry) { |
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const bool ignore_case_setting = false; |
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string relative_path = entry->GetRelativePath(); |
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if ( (relative_path == string(catalog::VirtualCatalog::kVirtualPath)) || |
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(HasPrefix(relative_path, |
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string(catalog::VirtualCatalog::kVirtualPath) + "/", |
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ignore_case_setting)) ) |
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{ |
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PrintError("invalid attempt to modify '" + relative_path + "'"); |
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abort(); |
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} |
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} |
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/** |
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* Add an entry to the repository. |
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* Added directories will be traversed in order to add the complete subtree. |
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*/ |
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void SyncMediator::Add(SharedPtr<SyncItem> entry) { |
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EnsureAllowed(entry); |
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if (entry->IsDirectory()) { |
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AddDirectoryRecursively(entry); |
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return; |
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} |
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if (entry->IsRegularFile() || entry->IsSymlink()) { |
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// A file is a hard link if the link count is greater than 1 |
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if (entry->HasHardlinks() && handle_hardlinks_) |
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InsertHardlink(entry); |
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else |
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AddFile(entry); |
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return; |
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} else if (entry->IsGraftMarker()) { |
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LogCvmfs(kLogPublish, kLogDebug, "Ignoring graft marker file."); |
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return; // Ignore markers. |
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} |
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// In OverlayFS whiteouts can be represented as character devices with major |
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// and minor numbers equal to 0. Special files will be ignored except if they |
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// are whiteout files. |
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if (entry->IsSpecialFile() && !entry->IsWhiteout()) { |
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if (params_->ignore_special_files) { |
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PrintWarning("'" + entry->GetRelativePath() + "' " |
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"is a special file, ignoring."); |
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} else { |
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if (entry->HasHardlinks() && handle_hardlinks_) |
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InsertHardlink(entry); |
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else |
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AddFile(entry); |
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} |
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return; |
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} |
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PrintWarning("'" + entry->GetRelativePath() + |
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"' cannot be added. Unrecognized file type."); |
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} |
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/** |
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* Touch an entry in the repository. |
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*/ |
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void SyncMediator::Touch(SharedPtr<SyncItem> entry) { |
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EnsureAllowed(entry); |
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if (entry->IsGraftMarker()) {return;} |
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if (entry->IsDirectory()) { |
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TouchDirectory(entry); |
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perf::Inc(counters_->n_directories_changed); |
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return; |
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} |
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if (entry->IsRegularFile() || entry->IsSymlink() || entry->IsSpecialFile()) { |
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Replace(entry); // This way, hardlink processing is correct |
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// Replace calls Remove; cancel Remove's actions: |
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perf::Dec(counters_->n_files_removed); |
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perf::Xadd(counters_->sz_removed_bytes, -entry->GetRdOnlySize()); |
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perf::Inc(counters_->n_files_changed); |
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// Count only the diference between the old and new file |
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int64_t dif = entry->GetScratchSize() - entry->GetRdOnlySize(); |
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if (dif > 0) { // added bytes |
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perf::Xadd(counters_->sz_added_bytes, dif); |
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} else { // removed bytes |
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perf::Xadd(counters_->sz_removed_bytes, -dif); |
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} |
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return; |
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} |
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PrintWarning("'" + entry->GetRelativePath() + |
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"' cannot be touched. Unrecognized file type."); |
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} |
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/** |
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* Remove an entry from the repository. Directories will be recursively removed. |
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*/ |
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void SyncMediator::Remove(SharedPtr<SyncItem> entry) { |
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EnsureAllowed(entry); |
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if (entry->WasDirectory()) { |
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RemoveDirectoryRecursively(entry); |
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return; |
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} |
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if (entry->WasRegularFile() || entry->WasSymlink() || |
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entry->WasSpecialFile()) { |
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RemoveFile(entry); |
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return; |
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} |
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PrintWarning("'" + entry->GetRelativePath() + |
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"' cannot be deleted. Unrecognized file type."); |
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} |
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/** |
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* Remove the old entry and add the new one. |
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*/ |
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void SyncMediator::Replace(SharedPtr<SyncItem> entry) { |
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// EnsureAllowed(entry); <-- Done by Remove() and Add() |
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Remove(entry); |
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Add(entry); |
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} |
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void SyncMediator::Clone(const std::string from, const std::string to) { |
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catalog_manager_->Clone(from, to); |
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} |
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void SyncMediator::EnterDirectory(SharedPtr<SyncItem> entry) { |
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if (!handle_hardlinks_) { |
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return; |
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} |
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HardlinkGroupMap new_map; |
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hardlink_stack_.push(new_map); |
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} |
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void SyncMediator::LeaveDirectory(SharedPtr<SyncItem> entry) |
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{ |
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if (!handle_hardlinks_) { |
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return; |
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} |
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CompleteHardlinks(entry); |
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AddLocalHardlinkGroups(GetHardlinkMap()); |
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hardlink_stack_.pop(); |
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} |
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/** |
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* Do any pending processing and commit all changes to the catalogs. |
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* To be called after change set traversal is finished. |
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*/ |
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bool SyncMediator::Commit(manifest::Manifest *manifest) { |
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if (!params_->print_changeset && changed_items_ >= processing_dot_interval) { |
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// line break the 'progress bar', see SyncMediator::PrintChangesetNotice() |
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LogCvmfs(kLogPublish, kLogStdout, ""); |
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} |
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LogCvmfs(kLogPublish, kLogStdout, |
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"Waiting for upload of files before committing..."); |
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params_->spooler->WaitForUpload(); |
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if (!hardlink_queue_.empty()) { |
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assert(handle_hardlinks_); |
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LogCvmfs(kLogPublish, kLogStdout, "Processing hardlinks..."); |
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params_->spooler->UnregisterListeners(); |
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params_->spooler->RegisterListener(&SyncMediator::PublishHardlinksCallback, |
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this); |
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// TODO(rmeusel): Revise that for Thread Safety! |
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// This loop will spool hardlinks into the spooler, which will then |
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// process them. |
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// On completion of every hardlink the spooler will asynchronously |
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// emit callbacks (SyncMediator::PublishHardlinksCallback) which |
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// might happen while this for-loop goes through the hardlink_queue_ |
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// |
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// For the moment this seems not to be a problem, but it's an accident |
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// just waiting to happen. |
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// |
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// Note: Just wrapping this loop in a mutex might produce a dead lock |
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// since the spooler does not fill it's processing queue to an |
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// unlimited size. Meaning that it might be flooded with hard- |
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// links and waiting for the queue to be processed while proces- |
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// sing is stalled because the callback is waiting for this |
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// mutex. |
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for (HardlinkGroupList::const_iterator i = hardlink_queue_.begin(), |
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iEnd = hardlink_queue_.end(); i != iEnd; ++i) |
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{ |
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LogCvmfs(kLogPublish, kLogVerboseMsg, "Spooling hardlink group %s", |
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i->master->GetUnionPath().c_str()); |
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IngestionSource *source = |
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new FileIngestionSource(i->master->GetUnionPath()); |
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params_->spooler->Process(source); |
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} |
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params_->spooler->WaitForUpload(); |
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for (HardlinkGroupList::const_iterator i = hardlink_queue_.begin(), |
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iEnd = hardlink_queue_.end(); i != iEnd; ++i) |
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{ |
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LogCvmfs(kLogPublish, kLogVerboseMsg, "Processing hardlink group %s", |
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i->master->GetUnionPath().c_str()); |
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AddHardlinkGroup(*i); |
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} |
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} |
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if (union_engine_) union_engine_->PostUpload(); |
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params_->spooler->UnregisterListeners(); |
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LogCvmfs(kLogPublish, kLogStdout, "Committing file catalogs..."); |
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if (params_->spooler->GetNumberOfErrors() > 0) { |
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LogCvmfs(kLogPublish, kLogStderr, "failed to commit files"); |
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return false; |
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} |
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if (catalog_manager_->IsBalanceable() || |
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(params_->virtual_dir_actions != catalog::VirtualCatalog::kActionNone)) |
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{ |
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if (catalog_manager_->IsBalanceable()) |
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catalog_manager_->Balance(); |
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// Commit empty string to ensure that the "content" of the auto catalog |
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// markers is present in the repository. |
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string empty_file = CreateTempPath(params_->dir_temp + "/empty", 0600); |
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IngestionSource* source = new FileIngestionSource(empty_file); |
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params_->spooler->Process(source); |
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params_->spooler->WaitForUpload(); |
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unlink(empty_file.c_str()); |
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if (params_->spooler->GetNumberOfErrors() > 0) { |
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LogCvmfs(kLogPublish, kLogStderr, "failed to commit auto catalog marker"); |
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return false; |
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} |
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} |
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catalog_manager_->PrecalculateListings(); |
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return catalog_manager_->Commit(params_->stop_for_catalog_tweaks, |
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params_->manual_revision, |
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manifest); |
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} |
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void SyncMediator::InsertHardlink(SharedPtr<SyncItem> entry) { |
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assert(handle_hardlinks_); |
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uint64_t inode = entry->GetUnionInode(); |
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LogCvmfs(kLogPublish, kLogVerboseMsg, "found hardlink %" PRIu64 " at %s", |
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inode, entry->GetUnionPath().c_str()); |
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// Find the hard link group in the lists |
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HardlinkGroupMap::iterator hardlink_group = GetHardlinkMap().find(inode); |
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if (hardlink_group == GetHardlinkMap().end()) { |
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// Create a new hardlink group |
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GetHardlinkMap().insert( |
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HardlinkGroupMap::value_type(inode, HardlinkGroup(entry))); |
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} else { |
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// Append the file to the appropriate hardlink group |
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hardlink_group->second.AddHardlink(entry); |
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} |
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} |
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void SyncMediator::InsertLegacyHardlink(SharedPtr<SyncItem> entry) { |
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// Check if found file has hardlinks (nlink > 1) |
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// As we are looking through all files in one directory here, there might be |
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// completely untouched hardlink groups, which we can safely skip. |
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// Finally we have to see if the hardlink is already part of this group |
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assert(handle_hardlinks_); |
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if (entry->GetUnionLinkcount() < 2) |
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return; |
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uint64_t inode = entry->GetUnionInode(); |
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HardlinkGroupMap::iterator hl_group; |
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hl_group = GetHardlinkMap().find(inode); |
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if (hl_group != GetHardlinkMap().end()) { // touched hardlinks in this group? |
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bool found = false; |
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// search for the entry in this group |
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for (SyncItemList::const_iterator i = hl_group->second.hardlinks.begin(), |
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iEnd = hl_group->second.hardlinks.end(); i != iEnd; ++i) |
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{ |
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if (*(i->second) == *entry) { |
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found = true; |
390 |
|
|
break; |
391 |
|
|
} |
392 |
|
|
} |
393 |
|
|
|
394 |
|
|
if (!found) { |
395 |
|
|
// Hardlink already in the group? |
396 |
|
|
// If one element of a hardlink group is edited, all elements must be |
397 |
|
|
// replaced. Here, we remove an untouched hardlink and add it to its |
398 |
|
|
// hardlink group for re-adding later |
399 |
|
|
LogCvmfs(kLogPublish, kLogVerboseMsg, "Picked up legacy hardlink %s", |
400 |
|
|
entry->GetUnionPath().c_str()); |
401 |
|
|
Remove(entry); |
402 |
|
|
hl_group->second.AddHardlink(entry); |
403 |
|
|
} |
404 |
|
|
} |
405 |
|
|
} |
406 |
|
|
|
407 |
|
|
|
408 |
|
|
/** |
409 |
|
|
* Create a recursion engine which DOES NOT recurse into directories. |
410 |
|
|
* It basically goes through the current directory (in the union volume) and |
411 |
|
|
* searches for legacy hardlinks which has to be connected to the new |
412 |
|
|
* or edited ones. |
413 |
|
|
*/ |
414 |
|
|
void SyncMediator::CompleteHardlinks(SharedPtr<SyncItem> entry) { |
415 |
|
|
assert(handle_hardlinks_); |
416 |
|
|
|
417 |
|
|
// If no hardlink in this directory was changed, we can skip this |
418 |
|
|
if (GetHardlinkMap().empty()) |
419 |
|
|
return; |
420 |
|
|
|
421 |
|
|
LogCvmfs(kLogPublish, kLogVerboseMsg, "Post-processing hard links in %s", |
422 |
|
|
entry->GetUnionPath().c_str()); |
423 |
|
|
|
424 |
|
|
// Look for legacy hardlinks |
425 |
|
|
FileSystemTraversal<SyncMediator> traversal(this, union_engine_->union_path(), |
426 |
|
|
false); |
427 |
|
|
traversal.fn_new_file = |
428 |
|
|
&SyncMediator::LegacyRegularHardlinkCallback; |
429 |
|
|
traversal.fn_new_symlink = &SyncMediator::LegacySymlinkHardlinkCallback; |
430 |
|
|
traversal.fn_new_character_dev = |
431 |
|
|
&SyncMediator::LegacyCharacterDeviceHardlinkCallback; |
432 |
|
|
traversal.fn_new_block_dev = &SyncMediator::LegacyBlockDeviceHardlinkCallback; |
433 |
|
|
traversal.fn_new_fifo = &SyncMediator::LegacyFifoHardlinkCallback; |
434 |
|
|
traversal.fn_new_socket = &SyncMediator::LegacySocketHardlinkCallback; |
435 |
|
|
traversal.Recurse(entry->GetUnionPath()); |
436 |
|
|
} |
437 |
|
|
|
438 |
|
|
|
439 |
|
|
void SyncMediator::LegacyRegularHardlinkCallback(const string &parent_dir, |
440 |
|
|
const string &file_name) |
441 |
|
|
{ |
442 |
|
|
SharedPtr<SyncItem> entry = CreateSyncItem(parent_dir, file_name, kItemFile); |
443 |
|
|
InsertLegacyHardlink(entry); |
444 |
|
|
} |
445 |
|
|
|
446 |
|
|
|
447 |
|
|
void SyncMediator::LegacySymlinkHardlinkCallback(const string &parent_dir, |
448 |
|
|
const string &file_name) |
449 |
|
|
{ |
450 |
|
|
SharedPtr<SyncItem> entry = |
451 |
|
|
CreateSyncItem(parent_dir, file_name, kItemSymlink); |
452 |
|
|
InsertLegacyHardlink(entry); |
453 |
|
|
} |
454 |
|
|
|
455 |
|
|
void SyncMediator::LegacyCharacterDeviceHardlinkCallback( |
456 |
|
|
const string &parent_dir, |
457 |
|
|
const string &file_name) |
458 |
|
|
{ |
459 |
|
|
SharedPtr<SyncItem> entry = |
460 |
|
|
CreateSyncItem(parent_dir, file_name, kItemCharacterDevice); |
461 |
|
|
InsertLegacyHardlink(entry); |
462 |
|
|
} |
463 |
|
|
|
464 |
|
|
void SyncMediator::LegacyBlockDeviceHardlinkCallback( |
465 |
|
|
const string &parent_dir, |
466 |
|
|
const string &file_name) |
467 |
|
|
{ |
468 |
|
|
SharedPtr<SyncItem> entry = |
469 |
|
|
CreateSyncItem(parent_dir, file_name, kItemBlockDevice); |
470 |
|
|
InsertLegacyHardlink(entry); |
471 |
|
|
} |
472 |
|
|
|
473 |
|
|
void SyncMediator::LegacyFifoHardlinkCallback(const string &parent_dir, |
474 |
|
|
const string &file_name) |
475 |
|
|
{ |
476 |
|
|
SharedPtr<SyncItem> entry = CreateSyncItem(parent_dir, file_name, kItemFifo); |
477 |
|
|
InsertLegacyHardlink(entry); |
478 |
|
|
} |
479 |
|
|
|
480 |
|
|
void SyncMediator::LegacySocketHardlinkCallback(const string &parent_dir, |
481 |
|
|
const string &file_name) |
482 |
|
|
{ |
483 |
|
|
SharedPtr<SyncItem> entry = |
484 |
|
|
CreateSyncItem(parent_dir, file_name, kItemSocket); |
485 |
|
|
InsertLegacyHardlink(entry); |
486 |
|
|
} |
487 |
|
|
|
488 |
|
|
|
489 |
|
|
void SyncMediator::AddDirectoryRecursively(SharedPtr<SyncItem> entry) { |
490 |
|
|
AddDirectory(entry); |
491 |
|
|
|
492 |
|
|
// Create a recursion engine, which recursively adds all entries in a newly |
493 |
|
|
// created directory |
494 |
|
|
FileSystemTraversal<SyncMediator> traversal( |
495 |
|
|
this, union_engine_->scratch_path(), true); |
496 |
|
|
traversal.fn_enter_dir = &SyncMediator::EnterAddedDirectoryCallback; |
497 |
|
|
traversal.fn_leave_dir = &SyncMediator::LeaveAddedDirectoryCallback; |
498 |
|
|
traversal.fn_new_file = &SyncMediator::AddFileCallback; |
499 |
|
|
traversal.fn_new_symlink = &SyncMediator::AddSymlinkCallback; |
500 |
|
|
traversal.fn_new_dir_prefix = &SyncMediator::AddDirectoryCallback; |
501 |
|
|
traversal.fn_ignore_file = &SyncMediator::IgnoreFileCallback; |
502 |
|
|
traversal.fn_new_character_dev = &SyncMediator::AddCharacterDeviceCallback; |
503 |
|
|
traversal.fn_new_block_dev = &SyncMediator::AddBlockDeviceCallback; |
504 |
|
|
traversal.fn_new_fifo = &SyncMediator::AddFifoCallback; |
505 |
|
|
traversal.fn_new_socket = &SyncMediator::AddSocketCallback; |
506 |
|
|
traversal.Recurse(entry->GetScratchPath()); |
507 |
|
|
} |
508 |
|
|
|
509 |
|
|
|
510 |
|
|
bool SyncMediator::AddDirectoryCallback(const std::string &parent_dir, |
511 |
|
|
const std::string &dir_name) |
512 |
|
|
{ |
513 |
|
|
SharedPtr<SyncItem> entry = CreateSyncItem(parent_dir, dir_name, kItemDir); |
514 |
|
|
AddDirectory(entry); |
515 |
|
|
return true; // The recursion engine should recurse deeper here |
516 |
|
|
} |
517 |
|
|
|
518 |
|
|
|
519 |
|
|
void SyncMediator::AddFileCallback(const std::string &parent_dir, |
520 |
|
|
const std::string &file_name) |
521 |
|
|
{ |
522 |
|
|
SharedPtr<SyncItem> entry = CreateSyncItem(parent_dir, file_name, kItemFile); |
523 |
|
|
Add(entry); |
524 |
|
|
} |
525 |
|
|
|
526 |
|
|
|
527 |
|
|
void SyncMediator::AddCharacterDeviceCallback(const std::string &parent_dir, |
528 |
|
|
const std::string &file_name) |
529 |
|
|
{ |
530 |
|
|
SharedPtr<SyncItem> entry = |
531 |
|
|
CreateSyncItem(parent_dir, file_name, kItemCharacterDevice); |
532 |
|
|
Add(entry); |
533 |
|
|
} |
534 |
|
|
|
535 |
|
|
void SyncMediator::AddBlockDeviceCallback(const std::string &parent_dir, |
536 |
|
|
const std::string &file_name) |
537 |
|
|
{ |
538 |
|
|
SharedPtr<SyncItem> entry = |
539 |
|
|
CreateSyncItem(parent_dir, file_name, kItemBlockDevice); |
540 |
|
|
Add(entry); |
541 |
|
|
} |
542 |
|
|
|
543 |
|
|
void SyncMediator::AddFifoCallback(const std::string &parent_dir, |
544 |
|
|
const std::string &file_name) |
545 |
|
|
{ |
546 |
|
|
SharedPtr<SyncItem> entry = CreateSyncItem(parent_dir, file_name, kItemFifo); |
547 |
|
|
Add(entry); |
548 |
|
|
} |
549 |
|
|
|
550 |
|
|
void SyncMediator::AddSocketCallback(const std::string &parent_dir, |
551 |
|
|
const std::string &file_name) { |
552 |
|
|
SharedPtr<SyncItem> entry = |
553 |
|
|
CreateSyncItem(parent_dir, file_name, kItemSocket); |
554 |
|
|
Add(entry); |
555 |
|
|
} |
556 |
|
|
|
557 |
|
|
void SyncMediator::AddSymlinkCallback(const std::string &parent_dir, |
558 |
|
|
const std::string &link_name) |
559 |
|
|
{ |
560 |
|
|
SharedPtr<SyncItem> entry = |
561 |
|
|
CreateSyncItem(parent_dir, link_name, kItemSymlink); |
562 |
|
|
Add(entry); |
563 |
|
|
} |
564 |
|
|
|
565 |
|
|
|
566 |
|
|
void SyncMediator::EnterAddedDirectoryCallback(const std::string &parent_dir, |
567 |
|
|
const std::string &dir_name) |
568 |
|
|
{ |
569 |
|
|
SharedPtr<SyncItem> entry = CreateSyncItem(parent_dir, dir_name, kItemDir); |
570 |
|
|
EnterDirectory(entry); |
571 |
|
|
} |
572 |
|
|
|
573 |
|
|
|
574 |
|
|
void SyncMediator::LeaveAddedDirectoryCallback(const std::string &parent_dir, |
575 |
|
|
const std::string &dir_name) |
576 |
|
|
{ |
577 |
|
|
SharedPtr<SyncItem> entry = CreateSyncItem(parent_dir, dir_name, kItemDir); |
578 |
|
|
LeaveDirectory(entry); |
579 |
|
|
} |
580 |
|
|
|
581 |
|
|
|
582 |
|
|
void SyncMediator::RemoveDirectoryRecursively(SharedPtr<SyncItem> entry) { |
583 |
|
|
// Delete a directory AFTER it was emptied here, |
584 |
|
|
// because it would start up another recursion |
585 |
|
|
|
586 |
|
|
const bool recurse = false; |
587 |
|
|
FileSystemTraversal<SyncMediator> traversal( |
588 |
|
|
this, union_engine_->rdonly_path(), recurse); |
589 |
|
|
traversal.fn_new_file = &SyncMediator::RemoveFileCallback; |
590 |
|
|
traversal.fn_new_dir_postfix = |
591 |
|
|
&SyncMediator::RemoveDirectoryCallback; |
592 |
|
|
traversal.fn_new_symlink = &SyncMediator::RemoveSymlinkCallback; |
593 |
|
|
traversal.fn_new_character_dev = &SyncMediator::RemoveCharacterDeviceCallback; |
594 |
|
|
traversal.fn_new_block_dev = &SyncMediator::RemoveBlockDeviceCallback; |
595 |
|
|
traversal.fn_new_fifo = &SyncMediator::RemoveFifoCallback; |
596 |
|
|
traversal.fn_new_socket = &SyncMediator::RemoveSocketCallback; |
597 |
|
|
traversal.Recurse(entry->GetRdOnlyPath()); |
598 |
|
|
|
599 |
|
|
// The given directory was emptied recursively and can now itself be deleted |
600 |
|
|
RemoveDirectory(entry); |
601 |
|
|
} |
602 |
|
|
|
603 |
|
|
|
604 |
|
|
void SyncMediator::RemoveFileCallback(const std::string &parent_dir, |
605 |
|
|
const std::string &file_name) |
606 |
|
|
{ |
607 |
|
|
SharedPtr<SyncItem> entry = CreateSyncItem(parent_dir, file_name, kItemFile); |
608 |
|
|
Remove(entry); |
609 |
|
|
} |
610 |
|
|
|
611 |
|
|
|
612 |
|
|
void SyncMediator::RemoveSymlinkCallback(const std::string &parent_dir, |
613 |
|
|
const std::string &link_name) |
614 |
|
|
{ |
615 |
|
|
SharedPtr<SyncItem> entry = |
616 |
|
|
CreateSyncItem(parent_dir, link_name, kItemSymlink); |
617 |
|
|
Remove(entry); |
618 |
|
|
} |
619 |
|
|
|
620 |
|
|
void SyncMediator::RemoveCharacterDeviceCallback( |
621 |
|
|
const std::string &parent_dir, |
622 |
|
|
const std::string &link_name) |
623 |
|
|
{ |
624 |
|
|
SharedPtr<SyncItem> entry = |
625 |
|
|
CreateSyncItem(parent_dir, link_name, kItemCharacterDevice); |
626 |
|
|
Remove(entry); |
627 |
|
|
} |
628 |
|
|
|
629 |
|
|
void SyncMediator::RemoveBlockDeviceCallback( |
630 |
|
|
const std::string &parent_dir, |
631 |
|
|
const std::string &link_name) |
632 |
|
|
{ |
633 |
|
|
SharedPtr<SyncItem> entry = |
634 |
|
|
CreateSyncItem(parent_dir, link_name, kItemBlockDevice); |
635 |
|
|
Remove(entry); |
636 |
|
|
} |
637 |
|
|
|
638 |
|
|
void SyncMediator::RemoveFifoCallback(const std::string &parent_dir, |
639 |
|
|
const std::string &link_name) |
640 |
|
|
{ |
641 |
|
|
SharedPtr<SyncItem> entry = CreateSyncItem(parent_dir, link_name, kItemFifo); |
642 |
|
|
Remove(entry); |
643 |
|
|
} |
644 |
|
|
|
645 |
|
|
void SyncMediator::RemoveSocketCallback(const std::string &parent_dir, |
646 |
|
|
const std::string &link_name) |
647 |
|
|
{ |
648 |
|
|
SharedPtr<SyncItem> entry = |
649 |
|
|
CreateSyncItem(parent_dir, link_name, kItemSocket); |
650 |
|
|
Remove(entry); |
651 |
|
|
} |
652 |
|
|
|
653 |
|
|
void SyncMediator::RemoveDirectoryCallback(const std::string &parent_dir, |
654 |
|
|
const std::string &dir_name) |
655 |
|
|
{ |
656 |
|
|
SharedPtr<SyncItem> entry = CreateSyncItem(parent_dir, dir_name, kItemDir); |
657 |
|
|
RemoveDirectoryRecursively(entry); |
658 |
|
|
} |
659 |
|
|
|
660 |
|
|
|
661 |
|
|
bool SyncMediator::IgnoreFileCallback(const std::string &parent_dir, |
662 |
|
|
const std::string &file_name) |
663 |
|
|
{ |
664 |
|
|
if (union_engine_->IgnoreFilePredicate(parent_dir, file_name)) { |
665 |
|
|
return true; |
666 |
|
|
} |
667 |
|
|
|
668 |
|
|
SharedPtr<SyncItem> entry = |
669 |
|
|
CreateSyncItem(parent_dir, file_name, kItemUnknown); |
670 |
|
|
return entry->IsWhiteout(); |
671 |
|
|
} |
672 |
|
|
|
673 |
|
|
SharedPtr<SyncItem> SyncMediator::CreateSyncItem( |
674 |
|
|
const std::string &relative_parent_path, const std::string &filename, |
675 |
|
|
const SyncItemType entry_type) const { |
676 |
|
|
return union_engine_->CreateSyncItem(relative_parent_path, filename, |
677 |
|
|
entry_type); |
678 |
|
|
} |
679 |
|
|
|
680 |
|
|
void SyncMediator::PublishFilesCallback(const upload::SpoolerResult &result) { |
681 |
|
|
LogCvmfs(kLogPublish, kLogVerboseMsg, |
682 |
|
|
"Spooler callback for %s, digest %s, produced %d chunks, retval %d", |
683 |
|
|
result.local_path.c_str(), |
684 |
|
|
result.content_hash.ToString().c_str(), |
685 |
|
|
result.file_chunks.size(), |
686 |
|
|
result.return_code); |
687 |
|
|
if (result.return_code != 0) { |
688 |
|
|
LogCvmfs(kLogPublish, kLogStderr, "Spool failure for %s (%d)", |
689 |
|
|
result.local_path.c_str(), result.return_code); |
690 |
|
|
abort(); |
691 |
|
|
} |
692 |
|
|
|
693 |
|
|
SyncItemList::iterator itr; |
694 |
|
|
{ |
695 |
|
|
MutexLockGuard guard(lock_file_queue_); |
696 |
|
|
itr = file_queue_.find(result.local_path); |
697 |
|
|
} |
698 |
|
|
|
699 |
|
|
assert(itr != file_queue_.end()); |
700 |
|
|
|
701 |
|
|
SyncItem &item = *itr->second; |
702 |
|
|
item.SetContentHash(result.content_hash); |
703 |
|
|
item.SetCompressionAlgorithm(result.compression_alg); |
704 |
|
|
|
705 |
|
|
XattrList *xattrs = &default_xattrs; |
706 |
|
|
if (params_->include_xattrs) { |
707 |
|
|
xattrs = XattrList::CreateFromFile(result.local_path); |
708 |
|
|
assert(xattrs != NULL); |
709 |
|
|
} |
710 |
|
|
|
711 |
|
|
if (result.IsChunked()) { |
712 |
|
|
catalog_manager_->AddChunkedFile( |
713 |
|
|
item.CreateBasicCatalogDirent(), |
714 |
|
|
*xattrs, |
715 |
|
|
item.relative_parent_path(), |
716 |
|
|
result.file_chunks); |
717 |
|
|
} else { |
718 |
|
|
catalog_manager_->AddFile( |
719 |
|
|
item.CreateBasicCatalogDirent(), |
720 |
|
|
*xattrs, |
721 |
|
|
item.relative_parent_path()); |
722 |
|
|
} |
723 |
|
|
|
724 |
|
|
if (xattrs != &default_xattrs) |
725 |
|
|
free(xattrs); |
726 |
|
|
} |
727 |
|
|
|
728 |
|
|
|
729 |
|
|
void SyncMediator::PublishHardlinksCallback( |
730 |
|
|
const upload::SpoolerResult &result) |
731 |
|
|
{ |
732 |
|
|
LogCvmfs(kLogPublish, kLogVerboseMsg, |
733 |
|
|
"Spooler callback for hardlink %s, digest %s, retval %d", |
734 |
|
|
result.local_path.c_str(), |
735 |
|
|
result.content_hash.ToString().c_str(), |
736 |
|
|
result.return_code); |
737 |
|
|
if (result.return_code != 0) { |
738 |
|
|
LogCvmfs(kLogPublish, kLogStderr, "Spool failure for %s (%d)", |
739 |
|
|
result.local_path.c_str(), result.return_code); |
740 |
|
|
abort(); |
741 |
|
|
} |
742 |
|
|
|
743 |
|
|
bool found = false; |
744 |
|
|
for (unsigned i = 0; i < hardlink_queue_.size(); ++i) { |
745 |
|
|
if (hardlink_queue_[i].master->GetUnionPath() == result.local_path) { |
746 |
|
|
found = true; |
747 |
|
|
hardlink_queue_[i].master->SetContentHash(result.content_hash); |
748 |
|
|
SyncItemList::iterator j, jend; |
749 |
|
|
for (j = hardlink_queue_[i].hardlinks.begin(), |
750 |
|
|
jend = hardlink_queue_[i].hardlinks.end(); |
751 |
|
|
j != jend; ++j) |
752 |
|
|
{ |
753 |
|
|
j->second->SetContentHash(result.content_hash); |
754 |
|
|
j->second->SetCompressionAlgorithm(result.compression_alg); |
755 |
|
|
} |
756 |
|
|
if (result.IsChunked()) |
757 |
|
|
hardlink_queue_[i].file_chunks = result.file_chunks; |
758 |
|
|
|
759 |
|
|
break; |
760 |
|
|
} |
761 |
|
|
} |
762 |
|
|
|
763 |
|
|
assert(found); |
764 |
|
|
} |
765 |
|
|
|
766 |
|
|
|
767 |
|
|
void SyncMediator::CreateNestedCatalog(SharedPtr<SyncItem> directory) { |
768 |
|
|
const std::string notice = "Nested catalog at " + directory->GetUnionPath(); |
769 |
|
|
PrintChangesetNotice(kAddCatalog, notice); |
770 |
|
|
|
771 |
|
|
if (!params_->dry_run) { |
772 |
|
|
catalog_manager_->CreateNestedCatalog(directory->GetRelativePath()); |
773 |
|
|
} |
774 |
|
|
} |
775 |
|
|
|
776 |
|
|
|
777 |
|
|
void SyncMediator::RemoveNestedCatalog(SharedPtr<SyncItem> directory) { |
778 |
|
|
const std::string notice = "Nested catalog at " + directory->GetUnionPath(); |
779 |
|
|
PrintChangesetNotice(kRemoveCatalog, notice); |
780 |
|
|
|
781 |
|
|
if (!params_->dry_run) { |
782 |
|
|
catalog_manager_->RemoveNestedCatalog(directory->GetRelativePath()); |
783 |
|
|
} |
784 |
|
|
} |
785 |
|
|
|
786 |
|
|
|
787 |
|
|
void SyncMediator::PrintChangesetNotice(const ChangesetAction action, |
788 |
|
|
const std::string &extra) const { |
789 |
|
|
if (!params_->print_changeset) { |
790 |
|
|
++changed_items_; |
791 |
|
|
if (changed_items_ % processing_dot_interval == 0) { |
792 |
|
|
LogCvmfs(kLogPublish, kLogStdout | kLogNoLinebreak, "."); |
793 |
|
|
} |
794 |
|
|
return; |
795 |
|
|
} |
796 |
|
|
|
797 |
|
|
const char *action_label = NULL; |
798 |
|
|
switch (action) { |
799 |
|
|
case kAdd: |
800 |
|
|
case kAddCatalog: |
801 |
|
|
case kAddHardlinks: |
802 |
|
|
action_label = "[add]"; |
803 |
|
|
break; |
804 |
|
|
case kRemove: |
805 |
|
|
case kRemoveCatalog: |
806 |
|
|
action_label = "[rem]"; |
807 |
|
|
break; |
808 |
|
|
case kTouch: |
809 |
|
|
action_label = "[tou]"; |
810 |
|
|
break; |
811 |
|
|
default: |
812 |
|
|
assert(false && "unknown sync mediator action"); |
813 |
|
|
} |
814 |
|
|
|
815 |
|
|
LogCvmfs(kLogPublish, kLogStdout, "%s %s", action_label, extra.c_str()); |
816 |
|
|
} |
817 |
|
|
|
818 |
|
|
void SyncMediator::AddFile(SharedPtr<SyncItem> entry) { |
819 |
|
|
PrintChangesetNotice(kAdd, entry->GetUnionPath()); |
820 |
|
|
|
821 |
|
|
if ((entry->IsSymlink() || entry->IsSpecialFile()) && !params_->dry_run) { |
822 |
|
|
assert(!entry->HasGraftMarker()); |
823 |
|
|
// Symlinks and special files are completely stored in the catalog |
824 |
|
|
catalog_manager_->AddFile(entry->CreateBasicCatalogDirent(), default_xattrs, |
825 |
|
|
entry->relative_parent_path()); |
826 |
|
|
} else if (entry->HasGraftMarker() && !params_->dry_run) { |
827 |
|
|
if (entry->IsValidGraft()) { |
828 |
|
|
// Graft files are added to catalog immediately. |
829 |
|
|
if (entry->IsChunkedGraft()) { |
830 |
|
|
catalog_manager_->AddChunkedFile( |
831 |
|
|
entry->CreateBasicCatalogDirent(), default_xattrs, |
832 |
|
|
entry->relative_parent_path(), *(entry->GetGraftChunks())); |
833 |
|
|
} else { |
834 |
|
|
catalog_manager_->AddFile( |
835 |
|
|
entry->CreateBasicCatalogDirent(), |
836 |
|
|
default_xattrs, // TODO(bbockelm): For now, use default xattrs |
837 |
|
|
// on grafted files. |
838 |
|
|
entry->relative_parent_path()); |
839 |
|
|
} |
840 |
|
|
} else { |
841 |
|
|
// Unlike with regular files, grafted files can be "unpublishable" - i.e., |
842 |
|
|
// the graft file is missing information. It's not clear that continuing |
843 |
|
|
// forward with the publish is the correct thing to do; abort for now. |
844 |
|
|
LogCvmfs(kLogPublish, kLogStderr, |
845 |
|
|
"Encountered a grafted file (%s) with " |
846 |
|
|
"invalid grafting information; check contents of .cvmfsgraft-*" |
847 |
|
|
" file. Aborting publish.", |
848 |
|
|
entry->GetRelativePath().c_str()); |
849 |
|
|
abort(); |
850 |
|
|
} |
851 |
|
|
} else if (entry->relative_parent_path().empty() && |
852 |
|
|
entry->IsCatalogMarker()) { |
853 |
|
|
LogCvmfs(kLogPublish, kLogStderr, |
854 |
|
|
"Error: nested catalog marker in root directory"); |
855 |
|
|
abort(); |
856 |
|
|
} else { |
857 |
|
|
// Push the file to the spooler, remember the entry for the path |
858 |
|
|
pthread_mutex_lock(&lock_file_queue_); |
859 |
|
|
file_queue_[entry->GetUnionPath()] = entry; |
860 |
|
|
pthread_mutex_unlock(&lock_file_queue_); |
861 |
|
|
// Spool the file |
862 |
|
|
params_->spooler->Process(entry->CreateIngestionSource()); |
863 |
|
|
} |
864 |
|
|
|
865 |
|
|
// publish statistics counting for new file |
866 |
|
|
if (entry->IsNew()) { |
867 |
|
|
perf::Inc(counters_->n_files_added); |
868 |
|
|
perf::Xadd(counters_->sz_added_bytes, entry->GetScratchSize()); |
869 |
|
|
} |
870 |
|
|
} |
871 |
|
|
|
872 |
|
|
void SyncMediator::RemoveFile(SharedPtr<SyncItem> entry) { |
873 |
|
|
PrintChangesetNotice(kRemove, entry->GetUnionPath()); |
874 |
|
|
|
875 |
|
|
if (!params_->dry_run) { |
876 |
|
|
if (handle_hardlinks_ && entry->GetRdOnlyLinkcount() > 1) { |
877 |
|
|
LogCvmfs(kLogPublish, kLogVerboseMsg, "remove %s from hardlink group", |
878 |
|
|
entry->GetUnionPath().c_str()); |
879 |
|
|
catalog_manager_->ShrinkHardlinkGroup(entry->GetRelativePath()); |
880 |
|
|
} |
881 |
|
|
catalog_manager_->RemoveFile(entry->GetRelativePath()); |
882 |
|
|
} |
883 |
|
|
|
884 |
|
|
// Counting nr of removed files and removed bytes |
885 |
|
|
perf::Inc(counters_->n_files_removed); |
886 |
|
|
perf::Xadd(counters_->sz_removed_bytes, entry->GetRdOnlySize()); |
887 |
|
|
} |
888 |
|
|
|
889 |
|
|
void SyncMediator::AddUnmaterializedDirectory(SharedPtr<SyncItem> entry) { |
890 |
|
|
AddDirectory(entry); |
891 |
|
|
} |
892 |
|
|
|
893 |
|
|
void SyncMediator::AddDirectory(SharedPtr<SyncItem> entry) { |
894 |
|
|
PrintChangesetNotice(kAdd, entry->GetUnionPath()); |
895 |
|
|
|
896 |
|
|
perf::Inc(counters_->n_directories_added); |
897 |
|
|
assert(!entry->HasGraftMarker()); |
898 |
|
|
if (!params_->dry_run) { |
899 |
|
|
catalog_manager_->AddDirectory(entry->CreateBasicCatalogDirent(), |
900 |
|
|
entry->relative_parent_path()); |
901 |
|
|
} |
902 |
|
|
|
903 |
|
|
if (entry->HasCatalogMarker() && |
904 |
|
|
!catalog_manager_->IsTransitionPoint(entry->GetRelativePath())) { |
905 |
|
|
CreateNestedCatalog(entry); |
906 |
|
|
} |
907 |
|
|
} |
908 |
|
|
|
909 |
|
|
|
910 |
|
|
/** |
911 |
|
|
* this method deletes a single directory entry! Make sure to empty it |
912 |
|
|
* before you call this method or simply use |
913 |
|
|
* SyncMediator::RemoveDirectoryRecursively instead. |
914 |
|
|
*/ |
915 |
|
|
void SyncMediator::RemoveDirectory(SharedPtr<SyncItem> entry) { |
916 |
|
|
const std::string directory_path = entry->GetRelativePath(); |
917 |
|
|
|
918 |
|
|
if (catalog_manager_->IsTransitionPoint(directory_path)) { |
919 |
|
|
RemoveNestedCatalog(entry); |
920 |
|
|
} |
921 |
|
|
|
922 |
|
|
PrintChangesetNotice(kRemove, entry->GetUnionPath()); |
923 |
|
|
if (!params_->dry_run) { |
924 |
|
|
catalog_manager_->RemoveDirectory(directory_path); |
925 |
|
|
} |
926 |
|
|
|
927 |
|
|
perf::Inc(counters_->n_directories_removed); |
928 |
|
|
} |
929 |
|
|
|
930 |
|
|
|
931 |
|
|
void SyncMediator::TouchDirectory(SharedPtr<SyncItem> entry) { |
932 |
|
|
PrintChangesetNotice(kTouch, entry->GetUnionPath()); |
933 |
|
|
const std::string directory_path = entry->GetRelativePath(); |
934 |
|
|
|
935 |
|
|
if (!params_->dry_run) { |
936 |
|
|
catalog_manager_->TouchDirectory(entry->CreateBasicCatalogDirent(), |
937 |
|
|
directory_path); |
938 |
|
|
} |
939 |
|
|
|
940 |
|
|
if (entry->HasCatalogMarker() && |
941 |
|
|
!catalog_manager_->IsTransitionPoint(directory_path)) |
942 |
|
|
{ |
943 |
|
|
CreateNestedCatalog(entry); |
944 |
|
|
} else if (!entry->HasCatalogMarker() && |
945 |
|
|
catalog_manager_->IsTransitionPoint(directory_path)) |
946 |
|
|
{ |
947 |
|
|
RemoveNestedCatalog(entry); |
948 |
|
|
} |
949 |
|
|
} |
950 |
|
|
|
951 |
|
|
|
952 |
|
|
/** |
953 |
|
|
* All hardlinks in the current directory have been picked up. Now they are |
954 |
|
|
* added to the catalogs. |
955 |
|
|
*/ |
956 |
|
|
void SyncMediator::AddLocalHardlinkGroups(const HardlinkGroupMap &hardlinks) { |
957 |
|
|
assert(handle_hardlinks_); |
958 |
|
|
|
959 |
|
|
for (HardlinkGroupMap::const_iterator i = hardlinks.begin(), |
960 |
|
|
iEnd = hardlinks.end(); i != iEnd; ++i) |
961 |
|
|
{ |
962 |
|
|
if (i->second.hardlinks.size() != i->second.master->GetUnionLinkcount()) { |
963 |
|
|
LogCvmfs(kLogPublish, kLogStdout, "Hardlinks across directories (%s)", |
964 |
|
|
i->second.master->GetUnionPath().c_str()); |
965 |
|
|
if (!params_->ignore_xdir_hardlinks) |
966 |
|
|
abort(); |
967 |
|
|
} |
968 |
|
|
|
969 |
|
|
if (params_->print_changeset) { |
970 |
|
|
std::string changeset_notice = "add hardlinks around (" |
971 |
|
|
+ i->second.master->GetUnionPath() + ")"; |
972 |
|
|
for (SyncItemList::const_iterator j = i->second.hardlinks.begin(), |
973 |
|
|
jEnd = i->second.hardlinks.end(); j != jEnd; ++j) |
974 |
|
|
{ |
975 |
|
|
changeset_notice += " " + j->second->filename(); |
976 |
|
|
} |
977 |
|
|
PrintChangesetNotice(kAddHardlinks, changeset_notice); |
978 |
|
|
} |
979 |
|
|
|
980 |
|
|
if (params_->dry_run) |
981 |
|
|
continue; |
982 |
|
|
|
983 |
|
|
if (i->second.master->IsSymlink() || i->second.master->IsSpecialFile()) |
984 |
|
|
AddHardlinkGroup(i->second); |
985 |
|
|
else |
986 |
|
|
hardlink_queue_.push_back(i->second); |
987 |
|
|
} |
988 |
|
|
} |
989 |
|
|
|
990 |
|
|
|
991 |
|
|
void SyncMediator::AddHardlinkGroup(const HardlinkGroup &group) { |
992 |
|
|
assert(handle_hardlinks_); |
993 |
|
|
|
994 |
|
|
// Create a DirectoryEntry list out of the hardlinks |
995 |
|
|
catalog::DirectoryEntryBaseList hardlinks; |
996 |
|
|
for (SyncItemList::const_iterator i = group.hardlinks.begin(), |
997 |
|
|
iEnd = group.hardlinks.end(); i != iEnd; ++i) |
998 |
|
|
{ |
999 |
|
|
hardlinks.push_back(i->second->CreateBasicCatalogDirent()); |
1000 |
|
|
} |
1001 |
|
|
XattrList *xattrs = &default_xattrs; |
1002 |
|
|
if (params_->include_xattrs) { |
1003 |
|
|
xattrs = XattrList::CreateFromFile(group.master->GetUnionPath()); |
1004 |
|
|
assert(xattrs); |
1005 |
|
|
} |
1006 |
|
|
catalog_manager_->AddHardlinkGroup( |
1007 |
|
|
hardlinks, |
1008 |
|
|
*xattrs, |
1009 |
|
|
group.master->relative_parent_path(), |
1010 |
|
|
group.file_chunks); |
1011 |
|
|
if (xattrs != &default_xattrs) |
1012 |
|
|
free(xattrs); |
1013 |
|
|
} |
1014 |
|
|
|
1015 |
|
|
} // namespace publish |