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Revert "Don't anticipate CA but not fixed outputs for now"

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This reverts commit 3a9e4c3262.
This commit is contained in:
Carlo Nucera 2020-07-17 13:10:32 -04:00
parent 205dcd140d
commit bbc633c98c
1 changed files with 31 additions and 7 deletions
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38
src/libstore/build.cc
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@ -3721,9 +3721,22 @@ void DerivationGoal::registerOutputs()
hash). */
std::optional<ContentAddress> ca;
if (derivationIsFixed(derivationType)) {
FixedOutputHash outputHash = std::get<DerivationOutputFixed>(i.second.output).hash;
if (! std::holds_alternative<DerivationOutputInputAddressed>(i.second.output)) {
DerivationOutputFloating outputHash;
std::visit(overloaded {
[&](DerivationOutputInputAddressed doi) {
throw Error("No.");
},
[&](DerivationOutputFixed dof) {
outputHash = DerivationOutputFloating {
.method = dof.hash.method,
.hashType = *dof.hash.hash.type,
};
},
[&](DerivationOutputFloating dof) {
outputHash = dof;
},
}, i.second.output);
if (outputHash.method == FileIngestionMethod::Flat) {
/* The output path should be a regular file without execute permission. */
@ -3737,12 +3750,17 @@ void DerivationGoal::registerOutputs()
/* Check the hash. In hash mode, move the path produced by
the derivation to its content-addressed location. */
Hash h2 = outputHash.method == FileIngestionMethod::Recursive
? hashPath(*outputHash.hash.type, actualPath).first
: hashFile(*outputHash.hash.type, actualPath);
? hashPath(outputHash.hashType, actualPath).first
: hashFile(outputHash.hashType, actualPath);
auto dest = worker.store.makeFixedOutputPath(outputHash.method, h2, i.second.path(worker.store, drv->name).name());
if (outputHash.hash != h2) {
// true if either floating CA, or incorrect fixed hash.
bool needsMove = true;
if (auto p = std::get_if<DerivationOutputFixed>(& i.second.output)) {
Hash & h = p->hash.hash;
if (h != h2) {
/* Throw an error after registering the path as
valid. */
@ -3750,9 +3768,15 @@ void DerivationGoal::registerOutputs()
delayedException = std::make_exception_ptr(
BuildError("hash mismatch in fixed-output derivation '%s':\n wanted: %s\n got: %s",
worker.store.printStorePath(dest),
outputHash.hash.to_string(SRI, true),
h.to_string(SRI, true),
h2.to_string(SRI, true)));
} else {
// matched the fixed hash, so no move needed.
needsMove = false;
}
}
if (needsMove) {
Path actualDest = worker.store.Store::toRealPath(dest);
if (worker.store.isValidPath(dest))