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builtins.fetchurl: Fix segfault on s3:// URLs

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Also, add an activity to show that we're downloading an s3:// file.

Fixes #11674.
This commit is contained in:
Eelco Dolstra 2024-10-11 14:31:15 +02:00
parent dbcd4cd6ba
commit 0500fba56a
2 changed files with 8 additions and 0 deletions
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5
src/libstore/filetransfer.cc
View file

@ -759,12 +759,17 @@ struct curlFileTransfer : public FileTransfer
S3Helper s3Helper(profile, region, scheme, endpoint); S3Helper s3Helper(profile, region, scheme, endpoint);
Activity act(*logger, lvlTalkative, actFileTransfer,
fmt("downloading '%s'", request.uri),
{request.uri}, request.parentAct);
// FIXME: implement ETag // FIXME: implement ETag
auto s3Res = s3Helper.getObject(bucketName, key); auto s3Res = s3Helper.getObject(bucketName, key);
FileTransferResult res; FileTransferResult res;
if (!s3Res.data) if (!s3Res.data)
throw FileTransferError(NotFound, "S3 object '%s' does not exist", request.uri); throw FileTransferError(NotFound, "S3 object '%s' does not exist", request.uri);
res.data = std::move(*s3Res.data); res.data = std::move(*s3Res.data);
res.urls.push_back(request.uri);
callback(std::move(res)); callback(std::move(res));
#else #else
throw nix::Error("cannot download '%s' because Nix is not built with S3 support", request.uri); throw nix::Error("cannot download '%s' because Nix is not built with S3 support", request.uri);

3
tests/nixos/s3-binary-cache-store.nix
View file

@ -51,6 +51,9 @@ in {
server.succeed("${env} nix copy --to '${storeUrl}' ${pkgA}") server.succeed("${env} nix copy --to '${storeUrl}' ${pkgA}")
# Test fetchurl on s3:// URLs while we're at it.
client.succeed("${env} nix eval --impure --expr 'builtins.fetchurl { name = \"foo\"; url = \"s3://my-cache/nix-cache-info?endpoint=http://server:9000&region=eu-west-1\"; }'")
# Copy a package from the binary cache. # Copy a package from the binary cache.
client.fail("nix path-info ${pkgA}") client.fail("nix path-info ${pkgA}")