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Merge remote-tracking branch 'origin/master' into flakes

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This commit is contained in:
Eelco Dolstra 2019-05-15 20:51:29 +02:00
commit 0f5032c5a4
12 changed files with 400 additions and 47 deletions
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75
src/libstore/build.cc
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@ -461,6 +461,28 @@ static void commonChildInit(Pipe & logPipe)
close(fdDevNull);
}
void handleDiffHook(uid_t uid, uid_t gid, Path tryA, Path tryB, Path drvPath, Path tmpDir)
{
auto diffHook = settings.diffHook;
if (diffHook != "" && settings.runDiffHook) {
try {
RunOptions diffHookOptions(diffHook,{tryA, tryB, drvPath, tmpDir});
diffHookOptions.searchPath = true;
diffHookOptions.uid = uid;
diffHookOptions.gid = gid;
diffHookOptions.chdir = "/";
auto diffRes = runProgram(diffHookOptions);
if (!statusOk(diffRes.first))
throw ExecError(diffRes.first, fmt("diff-hook program '%1%' %2%", diffHook, statusToString(diffRes.first)));
if (diffRes.second != "")
printError(chomp(diffRes.second));
} catch (Error & error) {
printError("diff hook execution failed: %s", error.what());
}
}
}
//////////////////////////////////////////////////////////////////////
@ -803,9 +825,6 @@ private:
/* Whether we're currently doing a chroot build. */
bool useChroot = false;
/* Whether we need to perform hash rewriting if there are valid output paths. */
bool needsHashRewrite;
Path chrootRootDir;
/* RAII object to delete the chroot directory. */
@ -885,6 +904,9 @@ public:
Worker & worker, BuildMode buildMode = bmNormal);
~DerivationGoal();
/* Whether we need to perform hash rewriting if there are valid output paths. */
bool needsHashRewrite();
void timedOut() override;
string key() override
@ -997,13 +1019,6 @@ DerivationGoal::DerivationGoal(const Path & drvPath, const StringSet & wantedOut
, wantedOutputs(wantedOutputs)
, buildMode(buildMode)
{
#if __linux__
needsHashRewrite = !useChroot;
#else
/* Darwin requires hash rewriting even when sandboxing is enabled. */
needsHashRewrite = true;
#endif
state = &DerivationGoal::getDerivation;
name = (format("building of '%1%'") % drvPath).str();
trace("created");
@ -1044,6 +1059,17 @@ DerivationGoal::~DerivationGoal()
}
inline bool DerivationGoal::needsHashRewrite()
{
#if __linux__
return !useChroot;
#else
/* Darwin requires hash rewriting even when sandboxing is enabled. */
return true;
#endif
}
void DerivationGoal::killChild()
{
if (pid != -1) {
@ -2083,7 +2109,7 @@ void DerivationGoal::startBuilder()
#endif
}
if (needsHashRewrite) {
if (needsHashRewrite()) {
if (pathExists(homeDir))
throw Error(format("directory '%1%' exists; please remove it") % homeDir);
@ -3039,8 +3065,7 @@ void DerivationGoal::registerOutputs()
InodesSeen inodesSeen;
Path checkSuffix = ".check";
bool runDiffHook = settings.runDiffHook;
bool keepPreviousRound = settings.keepFailed || runDiffHook;
bool keepPreviousRound = settings.keepFailed || settings.runDiffHook;
std::exception_ptr delayedException;
@ -3067,7 +3092,7 @@ void DerivationGoal::registerOutputs()
if (buildMode != bmCheck) actualPath = worker.store.toRealPath(path);
}
if (needsHashRewrite) {
if (needsHashRewrite()) {
Path redirected = redirectedOutputs[path];
if (buildMode == bmRepair
&& redirectedBadOutputs.find(path) != redirectedBadOutputs.end()
@ -3185,11 +3210,17 @@ void DerivationGoal::registerOutputs()
if (!worker.store.isValidPath(path)) continue;
auto info = *worker.store.queryPathInfo(path);
if (hash.first != info.narHash) {
if (settings.keepFailed) {
if (settings.runDiffHook || settings.keepFailed) {
Path dst = worker.store.toRealPath(path + checkSuffix);
deletePath(dst);
if (rename(actualPath.c_str(), dst.c_str()))
throw SysError(format("renaming '%1%' to '%2%'") % actualPath % dst);
handleDiffHook(
buildUser ? buildUser->getUID() : getuid(),
buildUser ? buildUser->getGID() : getgid(),
path, dst, drvPath, tmpDir);
throw Error(format("derivation '%1%' may not be deterministic: output '%2%' differs from '%3%'")
% drvPath % path % dst);
} else
@ -3254,16 +3285,10 @@ void DerivationGoal::registerOutputs()
? fmt("output '%1%' of '%2%' differs from '%3%' from previous round", i->second.path, drvPath, prev)
: fmt("output '%1%' of '%2%' differs from previous round", i->second.path, drvPath);
auto diffHook = settings.diffHook;
if (prevExists && diffHook != "" && runDiffHook) {
try {
auto diff = runProgram(diffHook, true, {prev, i->second.path});
if (diff != "")
printError(chomp(diff));
} catch (Error & error) {
printError("diff hook execution failed: %s", error.what());
}
}
handleDiffHook(
buildUser ? buildUser->getUID() : getuid(),
buildUser ? buildUser->getGID() : getgid(),
prev, i->second.path, drvPath, tmpDir);
if (settings.enforceDeterminism)
throw NotDeterministic(msg);