forked from lix-project/lix
950b46821f
The attributes previously stored in TreeInfo (narHash, revCount,
lastModified) are now stored in Input. This makes it less arbitrary
what attributes are stored where.
As a result, the lock file format has changed. An entry like
"info": {
"lastModified": 1585405475,
"narHash": "sha256-bESW0n4KgPmZ0luxvwJ+UyATrC6iIltVCsGdLiphVeE="
},
"locked": {
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "b88ff468e9850410070d4e0ccd68c7011f15b2be",
"type": "github"
},
is now stored as
"locked": {
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "b88ff468e9850410070d4e0ccd68c7011f15b2be",
"type": "github",
"lastModified": 1585405475,
"narHash": "sha256-bESW0n4KgPmZ0luxvwJ+UyATrC6iIltVCsGdLiphVeE="
},
The 'Input' class is now a dumb set of attributes. All the fetcher
implementations subclass InputScheme, not Input. This simplifies the
API.
Also, fix substitution of flake inputs. This was broken since lazy
flake fetching started using fetchTree internally.
45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
#pragma once
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#include "types.hh"
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#include <variant>
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#include <nlohmann/json_fwd.hpp>
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namespace nix::fetchers {
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/* Wrap bools to prevent string literals (i.e. 'char *') from being
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cast to a bool in Attr. */
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template<typename T>
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struct Explicit {
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T t;
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bool operator ==(const Explicit<T> & other) const
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{
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return t == other.t;
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}
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};
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typedef std::variant<std::string, uint64_t, Explicit<bool>> Attr;
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typedef std::map<std::string, Attr> Attrs;
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Attrs jsonToAttrs(const nlohmann::json & json);
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nlohmann::json attrsToJson(const Attrs & attrs);
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std::optional<std::string> maybeGetStrAttr(const Attrs & attrs, const std::string & name);
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std::string getStrAttr(const Attrs & attrs, const std::string & name);
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std::optional<uint64_t> maybeGetIntAttr(const Attrs & attrs, const std::string & name);
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uint64_t getIntAttr(const Attrs & attrs, const std::string & name);
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std::optional<bool> maybeGetBoolAttr(const Attrs & attrs, const std::string & name);
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bool getBoolAttr(const Attrs & attrs, const std::string & name);
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std::map<std::string, std::string> attrsToQuery(const Attrs & attrs);
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}
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