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Create bashInteractive InstallableFlake

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This commit is contained in:
Matthew Kenigsberg 2020-05-14 16:43:06 -06:00
parent 0858793604
commit ba7d7ed2e3
1 changed files with 3 additions and 35 deletions
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38
src/nix/dev-shell.cc
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@ -284,40 +284,6 @@ struct CmdDevShell : Common, MixEnvironment
}; };
} }
std::string getBashPath(ref<Store> store)
{
auto state = getEvalState();
auto lockedFlake = std::make_shared<flake::LockedFlake>(lockFlake(*state, installable->nixpkgsFlakeRef(), lockFlags));
auto cache = openEvalCache(*state, lockedFlake, true);
auto root = cache->getRoot();
auto attrPath = "legacyPackages." + settings.thisSystem.get() + ".bashInteractive";
auto attr = root->findAlongAttrPath(parseAttrPath(*state, attrPath));
if (!attr || !attr->isDerivation()) throw Error("couldn't find bashInteractive derivation");
auto aDrvPath = attr->getAttr(state->sDrvPath);
auto drvPath = store->parseStorePath(aDrvPath->getString());
if (!store->isValidPath(drvPath) && !settings.readOnlyMode) {
/* The eval cache contains 'drvPath', but the actual path
has been garbage-collected. So force it to be
regenerated. */
aDrvPath->forceValue();
if (!store->isValidPath(drvPath))
throw Error("don't know how to recreate store derivation '%s'!",
store->printStorePath(drvPath));
}
auto outputName = attr->getAttr(state->sOutputName)->getString();
if (outputName == "")
throw Error("derivation '%s' lacks an 'outputName' attribute", store->printStorePath(drvPath));
auto outPath = store->parseStorePath(attr->getAttr(state->sOutPath)->getString());
store->buildPaths({{drvPath, {outputName}}});
return store->printStorePath(outPath) + "/bin/bash";
}
void run(ref<Store> store) override void run(ref<Store> store) override
{ {
auto [buildEnvironment, gcroot] = getBuildEnvironment(store); auto [buildEnvironment, gcroot] = getBuildEnvironment(store);
@ -344,7 +310,9 @@ struct CmdDevShell : Common, MixEnvironment
// prevent garbage collection until shell exits // prevent garbage collection until shell exits
setenv("NIX_GCROOT", gcroot.data(), 1); setenv("NIX_GCROOT", gcroot.data(), 1);
auto shell = getBashPath(store); auto state = getEvalState();
auto bashInstallable = std::make_shared<InstallableFlake>(state, std::move(installable->nixpkgsFlakeRef()), Strings{"bashInteractive"}, Strings{"legacyPackages." + settings.thisSystem.get() + "."}, lockFlags);
auto shell = state->store->printStorePath(toStorePath(state->store, Build, bashInstallable)) + "/bin/bash";
auto args = Strings{std::string(baseNameOf(shell)), "--rcfile", rcFilePath}; auto args = Strings{std::string(baseNameOf(shell)), "--rcfile", rcFilePath};
restoreAffinity(); restoreAffinity();