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Merge remote-tracking branch 'upstream/master' into make-narHash-not-optional

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This commit is contained in:
John Ericson 2020-08-06 15:34:15 +00:00
parent d5d9907a9e 6146447842
commit 5e59b25a23
8 changed files with 151 additions and 79 deletions
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40
src/build-remote/build-remote.cc
View file

@ -103,7 +103,7 @@ static int _main(int argc, char * * argv)
drvPath = store->parseStorePath(readString(source));
auto requiredFeatures = readStrings<std::set<std::string>>(source);
auto canBuildLocally = amWilling
auto canBuildLocally = amWilling
&& ( neededSystem == settings.thisSystem
|| settings.extraPlatforms.get().count(neededSystem) > 0)
&& allSupportedLocally(requiredFeatures);
@ -170,7 +170,45 @@ static int _main(int argc, char * * argv)
if (rightType && !canBuildLocally)
std::cerr << "# postpone\n";
else
{
// build the hint template.
string hintstring = "derivation: %s\nrequired (system, features): (%s, %s)";
hintstring += "\n%s available machines:";
hintstring += "\n(systems, maxjobs, supportedFeatures, mandatoryFeatures)";
for (unsigned int i = 0; i < machines.size(); ++i) {
hintstring += "\n(%s, %s, %s, %s)";
}
// add the template values.
string drvstr;
if (drvPath.has_value())
drvstr = drvPath->to_string();
else
drvstr = "<unknown>";
auto hint = hintformat(hintstring);
hint
% drvstr
% neededSystem
% concatStringsSep<StringSet>(", ", requiredFeatures)
% machines.size();
for (auto & m : machines) {
hint % concatStringsSep<vector<string>>(", ", m.systemTypes)
% m.maxJobs
% concatStringsSep<StringSet>(", ", m.supportedFeatures)
% concatStringsSep<StringSet>(", ", m.mandatoryFeatures);
}
logError({
.name = "Remote build",
.description = "Failed to find a machine for remote build!",
.hint = hint
});
std::cerr << "# decline\n";
}
break;
}

13
src/libstore/build.cc
View file

@ -4876,8 +4876,17 @@ void Worker::run(const Goals & _topGoals)
waitForInput();
else {
if (awake.empty() && 0 == settings.maxBuildJobs)
throw Error("unable to start any build; either increase '--max-jobs' "
"or enable remote builds");
{
if (getMachines().empty())
throw Error("unable to start any build; either increase '--max-jobs' "
"or enable remote builds."
"\nhttps://nixos.org/nix/manual/#chap-distributed-builds");
else
throw Error("unable to start any build; remote machines may not have "
"all required system features."
"\nhttps://nixos.org/nix/manual/#chap-distributed-builds");
}
assert(!awake.empty());
}
}

29
src/nix/build.cc
View file

@ -64,17 +64,24 @@ struct CmdBuild : InstallablesCommand, MixDryRun, MixProfile
if (dryRun) return;
if (outLink != "") {
for (size_t i = 0; i < buildables.size(); ++i) {
for (auto & output : buildables[i].outputs)
if (auto store2 = store.dynamic_pointer_cast<LocalFSStore>()) {
std::string symlink = outLink;
if (i) symlink += fmt("-%d", i);
if (output.first != "out") symlink += fmt("-%s", output.first);
store2->addPermRoot(output.second, absPath(symlink), true);
}
}
}
if (outLink != "")
if (auto store2 = store.dynamic_pointer_cast<LocalFSStore>())
for (size_t i = 0; i < buildables.size(); ++i)
std::visit(overloaded {
[&](BuildableOpaque bo) {
std::string symlink = outLink;
if (i) symlink += fmt("-%d", i);
store2->addPermRoot(bo.path, absPath(symlink), true);
},
[&](BuildableFromDrv bfd) {
for (auto & output : bfd.outputs) {
std::string symlink = outLink;
if (i) symlink += fmt("-%d", i);
if (output.first != "out") symlink += fmt("-%s", output.first);
store2->addPermRoot(output.second, absPath(symlink), true);
}
},
}, buildables[i]);
updateProfile(buildables);
}

23
src/nix/command.cc
View file

@ -128,20 +128,25 @@ void MixProfile::updateProfile(const Buildables & buildables)
{
if (!profile) return;
std::optional<StorePath> result;
std::vector<StorePath> result;
for (auto & buildable : buildables) {
for (auto & output : buildable.outputs) {
if (result)
throw Error("'--profile' requires that the arguments produce a single store path, but there are multiple");
result = output.second;
}
std::visit(overloaded {
[&](BuildableOpaque bo) {
result.push_back(bo.path);
},
[&](BuildableFromDrv bfd) {
for (auto & output : bfd.outputs) {
result.push_back(output.second);
}
},
}, buildable);
}
if (!result)
throw Error("'--profile' requires that the arguments produce a single store path, but there are none");
if (result.size() != 1)
throw Error("'--profile' requires that the arguments produce a single store path, but there are %d", result.size());
updateProfile(*result);
updateProfile(result[0]);
}
MixDefaultProfile::MixDefaultProfile()

91
src/nix/installables.cc
View file

@ -308,16 +308,15 @@ struct InstallableStorePath : Installable
for (auto & [name, output] : drv.outputs)
outputs.emplace(name, output.path(*store, drv.name));
return {
Buildable {
BuildableFromDrv {
.drvPath = storePath,
.outputs = std::move(outputs)
}
};
} else {
return {
Buildable {
.drvPath = {},
.outputs = {{"out", storePath}}
BuildableOpaque {
.path = storePath,
}
};
}
@ -333,33 +332,20 @@ Buildables InstallableValue::toBuildables()
{
Buildables res;
StorePathSet drvPaths;
std::map<StorePath, OutputPathMap> drvsToOutputs;
// Group by derivation, helps with .all in particular
for (auto & drv : toDerivations()) {
Buildable b{.drvPath = drv.drvPath};
drvPaths.insert(drv.drvPath);
auto outputName = drv.outputName;
if (outputName == "")
throw Error("derivation '%s' lacks an 'outputName' attribute", state->store->printStorePath(*b.drvPath));
b.outputs.emplace(outputName, drv.outPath);
res.push_back(std::move(b));
throw Error("derivation '%s' lacks an 'outputName' attribute", state->store->printStorePath(drv.drvPath));
drvsToOutputs[drv.drvPath].insert_or_assign(outputName, drv.outPath);
}
// Hack to recognize .all: if all drvs have the same drvPath,
// merge the buildables.
if (drvPaths.size() == 1) {
Buildable b{.drvPath = *drvPaths.begin()};
for (auto & b2 : res)
for (auto & output : b2.outputs)
b.outputs.insert_or_assign(output.first, output.second);
Buildables bs;
bs.push_back(std::move(b));
return bs;
} else
return res;
for (auto & i : drvsToOutputs)
res.push_back(BuildableFromDrv { i.first, i.second });
return res;
}
struct InstallableAttrPath : InstallableValue
@ -656,14 +642,17 @@ Buildables build(ref<Store> store, Realise mode,
for (auto & i : installables) {
for (auto & b : i->toBuildables()) {
if (b.drvPath) {
StringSet outputNames;
for (auto & output : b.outputs)
outputNames.insert(output.first);
pathsToBuild.push_back({*b.drvPath, outputNames});
} else
for (auto & output : b.outputs)
pathsToBuild.push_back({output.second});
std::visit(overloaded {
[&](BuildableOpaque bo) {
pathsToBuild.push_back({bo.path});
},
[&](BuildableFromDrv bfd) {
StringSet outputNames;
for (auto & output : bfd.outputs)
outputNames.insert(output.first);
pathsToBuild.push_back({bfd.drvPath, outputNames});
},
}, b);
buildables.push_back(std::move(b));
}
}
@ -684,16 +673,23 @@ StorePathSet toStorePaths(ref<Store> store,
if (operateOn == OperateOn::Output) {
for (auto & b : build(store, mode, installables))
for (auto & output : b.outputs)
outPaths.insert(output.second);
std::visit(overloaded {
[&](BuildableOpaque bo) {
outPaths.insert(bo.path);
},
[&](BuildableFromDrv bfd) {
for (auto & output : bfd.outputs)
outPaths.insert(output.second);
},
}, b);
} else {
if (mode == Realise::Nothing)
settings.readOnlyMode = true;
for (auto & i : installables)
for (auto & b : i->toBuildables())
if (b.drvPath)
outPaths.insert(*b.drvPath);
if (auto bfd = std::get_if<BuildableFromDrv>(&b))
outPaths.insert(bfd->drvPath);
}
return outPaths;
@ -717,20 +713,21 @@ StorePathSet toDerivations(ref<Store> store,
StorePathSet drvPaths;
for (auto & i : installables)
for (auto & b : i->toBuildables()) {
if (!b.drvPath) {
if (!useDeriver)
throw Error("argument '%s' did not evaluate to a derivation", i->what());
for (auto & output : b.outputs) {
auto derivers = store->queryValidDerivers(output.second);
for (auto & b : i->toBuildables())
std::visit(overloaded {
[&](BuildableOpaque bo) {
if (!useDeriver)
throw Error("argument '%s' did not evaluate to a derivation", i->what());
auto derivers = store->queryValidDerivers(bo.path);
if (derivers.empty())
throw Error("'%s' does not have a known deriver", i->what());
// FIXME: use all derivers?
drvPaths.insert(*derivers.begin());
}
} else
drvPaths.insert(*b.drvPath);
}
},
[&](BuildableFromDrv bfd) {
drvPaths.insert(bfd.drvPath);
},
}, b);
return drvPaths;
}

14
src/nix/installables.hh
View file

@ -14,12 +14,20 @@ struct SourceExprCommand;
namespace eval_cache { class EvalCache; class AttrCursor; }
struct Buildable
{
std::optional<StorePath> drvPath;
struct BuildableOpaque {
StorePath path;
};
struct BuildableFromDrv {
StorePath drvPath;
std::map<std::string, StorePath> outputs;
};
typedef std::variant<
BuildableOpaque,
BuildableFromDrv
> Buildable;
typedef std::vector<Buildable> Buildables;
struct App

13
src/nix/log.cc
View file

@ -45,11 +45,14 @@ struct CmdLog : InstallableCommand
RunPager pager;
for (auto & sub : subs) {
auto log = b.drvPath ? sub->getBuildLog(*b.drvPath) : nullptr;
for (auto & output : b.outputs) {
if (log) break;
log = sub->getBuildLog(output.second);
}
auto log = std::visit(overloaded {
[&](BuildableOpaque bo) {
return sub->getBuildLog(bo.path);
},
[&](BuildableFromDrv bfd) {
return sub->getBuildLog(bfd.drvPath);
},
}, b);
if (!log) continue;
stopProgressBar();
printInfo("got build log for '%s' from '%s'", installable->what(), sub->getUri());

7
src/nix/repl.cc
View file

@ -33,12 +33,17 @@ extern "C" {
#include "command.hh"
#include "finally.hh"
#if HAVE_BOEHMGC
#define GC_INCLUDE_NEW
#include <gc/gc_cpp.h>
#endif
namespace nix {
struct NixRepl : gc
struct NixRepl
#if HAVE_BOEHMGC
: gc
#endif
{
string curDir;
std::unique_ptr<EvalState> state;