read.hh File Reference

Interfaces for reading a SQLite3 package set database. More...

#include <filesystem>
#include <functional>
#include <queue>
#include <string>
#include <vector>
#include <nix/eval-cache.hh>
#include <nix/flake/flake.hh>
#include <nlohmann/json.hpp>
#include <sqlite3pp.hh>
#include "flox/core/command.hh"
#include "flox/core/exceptions.hh"
#include "flox/core/types.hh"
#include "flox/package.hh"
#include "flox/pkgdb/pkg-query.hh"

Go to the source code of this file.

Classes
struct	flox::pkgdb::SqlVersions
	SQLite3 schema versions. More...
class	flox::pkgdb::PkgDbReadOnly
	A SQLite3 database used to cache derivation/package information about a single locked flake. More...
struct	flox::pkgdb::PkgDbReadOnly::LockedFlakeRef
	Locked flake reference for database's flake. More...
struct	flox::pkgdb::PkgDbReadOnly::NoSuchDatabase
	Thrown when a database is not found. More...

Namespaces
namespace	flox
	Interfaces for use by flox.
namespace	flox::pkgdb
	Interfaces for caching package metadata in SQLite3 databases.

Concepts
concept	flox::pkgdb::pkgdb_typename
	Restricts template parameters to classes that extend flox::pkgdb::PkgDbReadOnly.

Macros
#define	FLOX_PKGDB_VERSION   "NO.VERSION"

Typedefs
using	flox::pkgdb::Fingerprint = nix::flake::Fingerprint
using	flox::pkgdb::SQLiteDb = sqlite3pp::database
using	flox::pkgdb::sql_rc = int

Functions
std::ostream &	flox::pkgdb::operator<< (std::ostream &oss, const SqlVersions &versions)
	Emit version information to an output stream.
std::filesystem::path	flox::pkgdb::getPkgDbCachedir ()
	Get the default pkgdb cache directory to save databases.
std::filesystem::path	flox::pkgdb::genPkgDbName (const Fingerprint &fingerprint, const std::filesystem::path &cacheDir=getPkgDbCachedir())
	Get an absolute path to the ‘PkgDb’ for a given fingerprint hash.
bool	flox::pkgdb::isSQLError (int rcode)
	Predicate to detect failing SQLite3 return codes.

Variables
constexpr SqlVersions	flox::pkgdb::sqlVersions = { .tables = 2, .views = 3 }

Detailed Description

Interfaces for reading a SQLite3 package set database.