diff options
Diffstat (limited to 'third_party/nix/src/libstore/nar-info.cc')
| -rw-r--r-- | third_party/nix/src/libstore/nar-info.cc | 187 |
1 files changed, 88 insertions, 99 deletions
diff --git a/third_party/nix/src/libstore/nar-info.cc b/third_party/nix/src/libstore/nar-info.cc index cb568ccdc8..bf195290d0 100644 --- a/third_party/nix/src/libstore/nar-info.cc +++ b/third_party/nix/src/libstore/nar-info.cc @@ -1,116 +1,105 @@ -#include "globals.hh" #include "nar-info.hh" +#include "globals.hh" namespace nix { -NarInfo::NarInfo(const Store & store, const std::string & s, const std::string & whence) -{ - auto corrupt = [&]() { - throw Error(format("NAR info file '%1%' is corrupt") % whence); - }; - - auto parseHashField = [&](const string & s) { - try { - return Hash(s); - } catch (BadHash &) { - corrupt(); - return Hash(); // never reached - } - }; - - size_t pos = 0; - while (pos < s.size()) { - - size_t colon = s.find(':', pos); - if (colon == std::string::npos) corrupt(); - - std::string name(s, pos, colon - pos); - - size_t eol = s.find('\n', colon + 2); - if (eol == std::string::npos) corrupt(); - - std::string value(s, colon + 2, eol - colon - 2); - - if (name == "StorePath") { - if (!store.isStorePath(value)) corrupt(); - path = value; - } - else if (name == "URL") - url = value; - else if (name == "Compression") - compression = value; - else if (name == "FileHash") - fileHash = parseHashField(value); - else if (name == "FileSize") { - if (!string2Int(value, fileSize)) corrupt(); - } - else if (name == "NarHash") - narHash = parseHashField(value); - else if (name == "NarSize") { - if (!string2Int(value, narSize)) corrupt(); - } - else if (name == "References") { - auto refs = tokenizeString<Strings>(value, " "); - if (!references.empty()) corrupt(); - for (auto & r : refs) { - auto r2 = store.storeDir + "/" + r; - if (!store.isStorePath(r2)) corrupt(); - references.insert(r2); - } - } - else if (name == "Deriver") { - if (value != "unknown-deriver") { - auto p = store.storeDir + "/" + value; - if (!store.isStorePath(p)) corrupt(); - deriver = p; - } - } - else if (name == "System") - system = value; - else if (name == "Sig") - sigs.insert(value); - else if (name == "CA") { - if (!ca.empty()) corrupt(); - ca = value; - } - - pos = eol + 1; +NarInfo::NarInfo(const Store& store, const std::string& s, + const std::string& whence) { + auto corrupt = [&]() { + throw Error(format("NAR info file '%1%' is corrupt") % whence); + }; + + auto parseHashField = [&](const string& s) { + try { + return Hash(s); + } catch (BadHash&) { + corrupt(); + return Hash(); // never reached + } + }; + + size_t pos = 0; + while (pos < s.size()) { + size_t colon = s.find(':', pos); + if (colon == std::string::npos) corrupt(); + + std::string name(s, pos, colon - pos); + + size_t eol = s.find('\n', colon + 2); + if (eol == std::string::npos) corrupt(); + + std::string value(s, colon + 2, eol - colon - 2); + + if (name == "StorePath") { + if (!store.isStorePath(value)) corrupt(); + path = value; + } else if (name == "URL") + url = value; + else if (name == "Compression") + compression = value; + else if (name == "FileHash") + fileHash = parseHashField(value); + else if (name == "FileSize") { + if (!string2Int(value, fileSize)) corrupt(); + } else if (name == "NarHash") + narHash = parseHashField(value); + else if (name == "NarSize") { + if (!string2Int(value, narSize)) corrupt(); + } else if (name == "References") { + auto refs = tokenizeString<Strings>(value, " "); + if (!references.empty()) corrupt(); + for (auto& r : refs) { + auto r2 = store.storeDir + "/" + r; + if (!store.isStorePath(r2)) corrupt(); + references.insert(r2); + } + } else if (name == "Deriver") { + if (value != "unknown-deriver") { + auto p = store.storeDir + "/" + value; + if (!store.isStorePath(p)) corrupt(); + deriver = p; + } + } else if (name == "System") + system = value; + else if (name == "Sig") + sigs.insert(value); + else if (name == "CA") { + if (!ca.empty()) corrupt(); + ca = value; } - if (compression == "") compression = "bzip2"; + pos = eol + 1; + } - if (path.empty() || url.empty() || narSize == 0 || !narHash) corrupt(); + if (compression == "") compression = "bzip2"; + + if (path.empty() || url.empty() || narSize == 0 || !narHash) corrupt(); } -std::string NarInfo::to_string() const -{ - std::string res; - res += "StorePath: " + path + "\n"; - res += "URL: " + url + "\n"; - assert(compression != ""); - res += "Compression: " + compression + "\n"; - assert(fileHash.type == htSHA256); - res += "FileHash: " + fileHash.to_string(Base32) + "\n"; - res += "FileSize: " + std::to_string(fileSize) + "\n"; - assert(narHash.type == htSHA256); - res += "NarHash: " + narHash.to_string(Base32) + "\n"; - res += "NarSize: " + std::to_string(narSize) + "\n"; +std::string NarInfo::to_string() const { + std::string res; + res += "StorePath: " + path + "\n"; + res += "URL: " + url + "\n"; + assert(compression != ""); + res += "Compression: " + compression + "\n"; + assert(fileHash.type == htSHA256); + res += "FileHash: " + fileHash.to_string(Base32) + "\n"; + res += "FileSize: " + std::to_string(fileSize) + "\n"; + assert(narHash.type == htSHA256); + res += "NarHash: " + narHash.to_string(Base32) + "\n"; + res += "NarSize: " + std::to_string(narSize) + "\n"; - res += "References: " + concatStringsSep(" ", shortRefs()) + "\n"; + res += "References: " + concatStringsSep(" ", shortRefs()) + "\n"; - if (!deriver.empty()) - res += "Deriver: " + baseNameOf(deriver) + "\n"; + if (!deriver.empty()) res += "Deriver: " + baseNameOf(deriver) + "\n"; - if (!system.empty()) - res += "System: " + system + "\n"; + if (!system.empty()) res += "System: " + system + "\n"; - for (auto sig : sigs) - res += "Sig: " + sig + "\n"; + for (auto sig : sigs) res += "Sig: " + sig + "\n"; - if (!ca.empty()) - res += "CA: " + ca + "\n"; + if (!ca.empty()) res += "CA: " + ca + "\n"; - return res; + return res; } -} +} // namespace nix |