nix-super/src/libfetchers/tarball.hh
Eelco Dolstra d29786f258 downloadFile(): Remove the "locked" (aka "immutable") flag
This was used in only one place, namely builtins.fetchurl with an
expected hash. Since this can cause similar issues as described
in #9814 and #9905 with the "locked" flag for fetchTarball and fetchTree,
let's just remove it.

Note that if an expected hash is given and the hash algorithm is
SHA-256, then we will never do a download anyway if the resulting
store path already exists. So removing the "locked" flag will only
cause potentially unnecessary HTTP requests (subject to the tarball
TTL) for non-SHA-256 hashes.
2024-04-08 15:56:16 +02:00

46 lines
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C++

#pragma once
#include "types.hh"
#include "path.hh"
#include "hash.hh"
#include <optional>
namespace nix {
class Store;
struct InputAccessor;
}
namespace nix::fetchers {
struct DownloadFileResult
{
StorePath storePath;
std::string etag;
std::string effectiveUrl;
std::optional<std::string> immutableUrl;
};
DownloadFileResult downloadFile(
ref<Store> store,
const std::string & url,
const std::string & name,
const Headers & headers = {});
struct DownloadTarballResult
{
Hash treeHash;
time_t lastModified;
std::optional<std::string> immutableUrl;
ref<InputAccessor> accessor;
};
/**
* Download and import a tarball into the Git cache. The result is the
* Git tree hash of the root directory.
*/
DownloadTarballResult downloadTarball(
const std::string & url,
const Headers & headers = {});
}