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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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#include "swissknife_assistant.h" |
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#include <unistd.h> |
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#include <cassert> |
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#include <cstdlib> |
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#include "catalog.h" |
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#include "catalog_rw.h" |
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#include "history.h" |
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#include "history_sqlite.h" |
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#include "manifest.h" |
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#include "network/download.h" |
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#include "util/logging.h" |
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#include "util/posix.h" |
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using namespace std; // NOLINT |
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namespace swissknife { |
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catalog::Catalog *Assistant::GetCatalog(const shash::Any &catalog_hash, |
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OpenMode open_mode) { |
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assert(shash::kSuffixCatalog == catalog_hash.suffix); |
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const string local_path = CreateTempPath(tmp_dir_ + "/catalog", 0600); |
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assert(!local_path.empty()); |
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if (!FetchObject(catalog_hash, local_path)) { |
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return NULL; |
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} |
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const std::string catalog_root_path = ""; |
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catalog::Catalog *catalog; |
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switch (open_mode) { |
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case kOpenReadWrite: |
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catalog = catalog::WritableCatalog::AttachFreely( |
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catalog_root_path, local_path, catalog_hash); |
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break; |
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case kOpenReadOnly: |
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catalog = catalog::Catalog::AttachFreely( |
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catalog_root_path, local_path, catalog_hash); |
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break; |
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default: |
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abort(); |
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} |
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assert(catalog != NULL); |
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catalog->TakeDatabaseFileOwnership(); |
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return catalog; |
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} |
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history::History *Assistant::GetHistory(OpenMode open_mode) { |
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const shash::Any history_hash = manifest_->history(); |
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history::History *history; |
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const string local_path = CreateTempPath(tmp_dir_ + "/history", 0600); |
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assert(!local_path.empty()); |
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if (history_hash.IsNull()) { |
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history = history::SqliteHistory::Create(local_path, |
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manifest_->repository_name()); |
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if (NULL == history) { |
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LogCvmfs(kLogCvmfs, kLogStderr, "failed to create history database"); |
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return NULL; |
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} |
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return history; |
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} |
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if (!FetchObject(history_hash, local_path)) |
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return NULL; |
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switch (open_mode) { |
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case kOpenReadWrite: |
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history = history::SqliteHistory::OpenWritable(local_path); |
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break; |
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case kOpenReadOnly: |
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history = history::SqliteHistory::Open(local_path); |
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break; |
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default: |
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abort(); |
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} |
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if (history == NULL) { |
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LogCvmfs(kLogCvmfs, kLogStderr, "failed to open history database (%s)", |
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local_path.c_str()); |
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unlink(local_path.c_str()); |
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return NULL; |
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} |
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assert(history->fqrn() == manifest_->repository_name()); |
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history->TakeDatabaseFileOwnership(); |
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return history; |
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} |
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bool Assistant::FetchObject(const shash::Any &id, const string &local_path) { |
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assert(!id.IsNull()); |
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download::Failures dl_retval; |
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const std::string url = repository_url_ + "/data/" + id.MakePath(); |
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cvmfs::PathSink pathsink(local_path); |
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download::JobInfo download_info(&url, true, false, &id, &pathsink); |
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dl_retval = download_mgr_->Fetch(&download_info); |
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if (dl_retval != download::kFailOk) { |
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LogCvmfs(kLogCvmfs, kLogStderr, "failed to download object '%s' (%d - %s)", |
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id.ToStringWithSuffix().c_str(), dl_retval, |
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download::Code2Ascii(dl_retval)); |
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return false; |
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} |
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return true; |
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} |
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} // namespace swissknife |
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