forked from lix-project/lix
91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
#pragma once
|
|
|
|
#include "types.hh"
|
|
#include "hash.hh"
|
|
#include "fetchers.hh"
|
|
#include "path-with-outputs.hh"
|
|
|
|
#include <variant>
|
|
|
|
namespace nix {
|
|
|
|
class Store;
|
|
|
|
typedef std::string FlakeId;
|
|
|
|
/* A flake reference specifies how to fetch a flake or raw source
|
|
* (e.g. from a Git repository). It is created from a URL-like syntax
|
|
* (e.g. 'github:NixOS/patchelf'), an attrset representation (e.g. '{
|
|
* type="github"; owner = "NixOS"; repo = "patchelf"; }'), or a local
|
|
* path.
|
|
*
|
|
* Each flake will have a number of FlakeRef objects: one for each
|
|
* input to the flake.
|
|
*
|
|
* The normal method of constructing a FlakeRef is by starting with an
|
|
* input description (usually the attrs or a url from the flake file),
|
|
* locating a fetcher for that input, and then capturing the Input
|
|
* object that fetcher generates (usually via
|
|
* FlakeRef::fromAttrs(attrs) or parseFlakeRef(url) calls).
|
|
*
|
|
* The actual fetch not have been performed yet (i.e. a FlakeRef may
|
|
* be lazy), but the fetcher can be invoked at any time via the
|
|
* FlakeRef to ensure the store is populated with this input.
|
|
*/
|
|
|
|
struct FlakeRef
|
|
{
|
|
/* fetcher-specific representation of the input, sufficient to
|
|
perform the fetch operation. */
|
|
fetchers::Input input;
|
|
|
|
/* sub-path within the fetched input that represents this input */
|
|
Path subdir;
|
|
|
|
bool operator==(const FlakeRef & other) const;
|
|
|
|
FlakeRef(fetchers::Input && input, const Path & subdir)
|
|
: input(std::move(input)), subdir(subdir)
|
|
{ }
|
|
|
|
// FIXME: change to operator <<.
|
|
std::string to_string() const;
|
|
|
|
fetchers::Attrs toAttrs() const;
|
|
|
|
FlakeRef resolve(ref<Store> store) const;
|
|
|
|
static FlakeRef fromAttrs(const fetchers::Attrs & attrs);
|
|
|
|
std::pair<fetchers::Tree, FlakeRef> fetchTree(ref<Store> store) const;
|
|
};
|
|
|
|
std::ostream & operator << (std::ostream & str, const FlakeRef & flakeRef);
|
|
|
|
FlakeRef parseFlakeRef(
|
|
const std::string & url,
|
|
const std::optional<Path> & baseDir = {},
|
|
bool allowMissing = false,
|
|
bool isFlake = true);
|
|
|
|
std::optional<FlakeRef> maybeParseFlake(
|
|
const std::string & url, const std::optional<Path> & baseDir = {});
|
|
|
|
std::pair<FlakeRef, std::string> parseFlakeRefWithFragment(
|
|
const std::string & url,
|
|
const std::optional<Path> & baseDir = {},
|
|
bool allowMissing = false,
|
|
bool isFlake = true);
|
|
|
|
std::optional<std::pair<FlakeRef, std::string>> maybeParseFlakeRefWithFragment(
|
|
const std::string & url, const std::optional<Path> & baseDir = {});
|
|
|
|
std::tuple<FlakeRef, std::string, OutputsSpec> parseFlakeRefWithFragmentAndOutputsSpec(
|
|
const std::string & url,
|
|
const std::optional<Path> & baseDir = {},
|
|
bool allowMissing = false,
|
|
bool isFlake = true);
|
|
|
|
|
|
}
|