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Add command flake clone

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This commit is contained in:
Nick Van den Broeck 2019-03-21 09:30:16 +01:00
parent 939bee06cd
commit b42ba08fc8
5 changed files with 77 additions and 6 deletions
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43
src/libexpr/primops/flake.cc
View file

@ -146,17 +146,19 @@ std::shared_ptr<FlakeRegistry> getFlagRegistry()
return std::make_shared<FlakeRegistry>();
}
const std::vector<std::shared_ptr<FlakeRegistry>> EvalState::getFlakeRegistries()
// This always returns a vector with globalReg, userReg, localReg, flakeReg.
// If one of them doesn't exist, the registry is left empty but does exist.
const Registries EvalState::getFlakeRegistries()
{
std::vector<std::shared_ptr<FlakeRegistry>> registries;
registries.push_back(getGlobalRegistry());
Registries registries;
registries.push_back(getGlobalRegistry()); // TODO (Nick): Doesn't this break immutability?
registries.push_back(getUserRegistry());
registries.push_back(std::make_shared<FlakeRegistry>()); // local
registries.push_back(getFlagRegistry());
return registries;
}
static FlakeRef lookupFlake(EvalState & state, const FlakeRef & flakeRef,
const std::vector<std::shared_ptr<FlakeRegistry>> & registries,
static FlakeRef lookupFlake(EvalState & state, const FlakeRef & flakeRef, const Registries & registries,
std::vector<FlakeRef> pastSearches = {})
{
if (registries.empty() && !flakeRef.isDirect())
@ -462,4 +464,35 @@ static void prim_getFlake(EvalState & state, const Pos & pos, Value * * args, Va
static RegisterPrimOp r2("getFlake", 1, prim_getFlake);
void gitCloneFlake (std::string flakeUri, EvalState & state, Registries registries,
Path endDirectory)
{
FlakeRef flakeRef(flakeUri);
flakeRef = lookupFlake(state, flakeRef, registries);
std::string uri;
Strings args = {"clone"};
if (auto refData = std::get_if<FlakeRef::IsGitHub>(&flakeRef.data)) {
uri = "git@github.com:" + refData->owner + "/" + refData->repo + ".git";
args.push_back(uri);
if (flakeRef.ref) {
args.push_back("--branch");
args.push_back(*flakeRef.ref);
}
} else if (auto refData = std::get_if<FlakeRef::IsGit>(&flakeRef.data)) {
args.push_back(refData->uri);
if (flakeRef.ref) {
args.push_back("--branch");
args.push_back(*flakeRef.ref);
}
}
if (endDirectory != "")
args.push_back(endDirectory);
runProgram("git", true, args);
}
}

3
src/libexpr/primops/flake.hh
View file

@ -27,6 +27,8 @@ struct LockFile
std::map<FlakeId, FlakeRef> nonFlakeEntries;
};
typedef std::vector<std::shared_ptr<FlakeRegistry>> Registries;
Path getUserRegistryPath();
enum RegistryAccess { DisallowRegistry, AllowRegistry, AllowRegistryAtTop };
@ -86,4 +88,5 @@ Dependencies resolveFlake(EvalState &, const FlakeRef &, RegistryAccess registry
void updateLockFile(EvalState &, const Path & path);
void gitCloneFlake (std::string flakeUri, EvalState &, Registries, Path);
}

1
src/libexpr/primops/flakeref.hh
View file

@ -67,6 +67,7 @@ namespace nix {
https://example.org/my/repo.git
https://example.org/my/repo.git?ref=release-1.2.3
https://example.org/my/repo.git?rev=e72daba8250068216d79d2aeef40d4d95aff6666
git://github.com/edolstra/dwarffs.git\?ref=flake\&rev=2efca4bc9da70fb001b26c3dc858c6397d3c4817
* /path.git(\?attr(&attr)*)?