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fetchToStore(): Address a FIXME

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This commit is contained in:
Eelco Dolstra 2025-06-16 16:05:08 +02:00 • committed by Graham Christensen
parent e3fa4faff9
commit b2905dc08e
1 changed files with 31 additions and 20 deletions
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51
src/libfetchers/fetch-to-store.cc
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@ -64,26 +64,37 @@ std::pair<StorePath, Hash> fetchToStore2(
auto filter2 = filter ? *filter : defaultPathFilter;
if (mode == FetchMode::DryRun) {
auto [storePath, hash] = store.computeStorePath(
name, path, method, HashAlgorithm::SHA256, {}, filter2);
debug("hashed '%s' to '%s'", path, store.printStorePath(storePath));
if (cacheKey)
fetchers::getCache()->upsert(*cacheKey, {{"hash", hash.to_string(HashFormat::SRI, true)}});
return {storePath, hash};
} else {
auto storePath = store.addToStore(
name, path, method, HashAlgorithm::SHA256, {}, filter2, repair);
debug("copied '%s' to '%s'", path, store.printStorePath(storePath));
// FIXME: this is the wrong hash when method !=
// ContentAddressMethod::Raw::NixArchive. Doesn't matter at
// the moment since the only place where that's the case
// doesn't use the hash.
auto hash = store.queryPathInfo(storePath)->narHash;
if (cacheKey)
fetchers::getCache()->upsert(*cacheKey, {{"hash", hash.to_string(HashFormat::SRI, true)}});
return {storePath, hash};
}
auto [storePath, hash] =
mode == FetchMode::DryRun
? ({
auto [storePath, hash] = store.computeStorePath(
name, path, method, HashAlgorithm::SHA256, {}, filter2);
debug("hashed '%s' to '%s' (hash '%s')", path, store.printStorePath(storePath), hash.to_string(HashFormat::SRI, true));
std::make_pair(storePath, hash);
})
: ({
// FIXME: ideally addToStore() would return the hash
// right away (like computeStorePath()).
auto storePath = store.addToStore(
name, path, method, HashAlgorithm::SHA256, {}, filter2, repair);
auto info = store.queryPathInfo(storePath);
assert(info->references.empty());
auto hash =
method == ContentAddressMethod::Raw::NixArchive
? info->narHash
: ({
if (!info->ca || info->ca->method != method)
throw Error("path '%s' lacks a CA field", store.printStorePath(storePath));
info->ca->hash;
});
debug("copied '%s' to '%s' (hash '%s')", path, store.printStorePath(storePath), hash.to_string(HashFormat::SRI, true));
std::make_pair(storePath, hash);
});
if (cacheKey)
fetchers::getCache()->upsert(*cacheKey, {{"hash", hash.to_string(HashFormat::SRI, true)}});
return {storePath, hash};
}
}