1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
#include "realisation.hh"
#include "store-api.hh"
#include <nlohmann/json.hpp>
namespace nix {
MakeError(InvalidDerivationOutputId, Error);
DrvOutput DrvOutput::parse(const std::string &strRep) {
size_t n = strRep.find("!");
if (n == strRep.npos)
throw InvalidDerivationOutputId("Invalid derivation output id %s", strRep);
return DrvOutput{
.drvHash = Hash::parseAnyPrefixed(strRep.substr(0, n)),
.outputName = strRep.substr(n+1),
};
}
std::string DrvOutput::to_string() const {
return strHash() + "!" + outputName;
}
nlohmann::json Realisation::toJSON() const {
return nlohmann::json{
{"id", id.to_string()},
{"outPath", outPath.to_string()},
};
}
Realisation Realisation::fromJSON(
const nlohmann::json& json,
const std::string& whence) {
auto getField = [&](std::string fieldName) -> std::string {
auto fieldIterator = json.find(fieldName);
if (fieldIterator == json.end())
throw Error(
"Drv output info file '%1%' is corrupt, missing field %2%",
whence, fieldName);
return *fieldIterator;
};
return Realisation{
.id = DrvOutput::parse(getField("id")),
.outPath = StorePath(getField("outPath")),
};
}
StorePath RealisedPath::path() const {
return visit([](auto && arg) { return arg.getPath(); });
}
void RealisedPath::closure(
Store& store,
const RealisedPath::Set& startPaths,
RealisedPath::Set& ret)
{
// FIXME: This only builds the store-path closure, not the real realisation
// closure
StorePathSet initialStorePaths, pathsClosure;
for (auto& path : startPaths)
initialStorePaths.insert(path.path());
store.computeFSClosure(initialStorePaths, pathsClosure);
ret.insert(startPaths.begin(), startPaths.end());
ret.insert(pathsClosure.begin(), pathsClosure.end());
}
void RealisedPath::closure(Store& store, RealisedPath::Set& ret) const
{
RealisedPath::closure(store, {*this}, ret);
}
RealisedPath::Set RealisedPath::closure(Store& store) const
{
RealisedPath::Set ret;
closure(store, ret);
return ret;
}
} // namespace nix
|
