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downloadFile(): Remove the "locked" (aka "immutable") flag

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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.
This commit is contained in:
Eelco Dolstra 2024-04-05 16:35:12 +02:00
parent 334874d101
commit d29786f258
6 changed files with 11 additions and 13 deletions
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6
src/nix-channel/nix-channel.cc
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@ -112,7 +112,7 @@ static void update(const StringSet & channelNames)
// We want to download the url to a file to see if it's a tarball while also checking if we
// got redirected in the process, so that we can grab the various parts of a nix channel
// definition from a consistent location if the redirect changes mid-download.
auto result = fetchers::downloadFile(store, url, std::string(baseNameOf(url)), false);
auto result = fetchers::downloadFile(store, url, std::string(baseNameOf(url)));
auto filename = store->toRealPath(result.storePath);
url = result.effectiveUrl;
@ -126,9 +126,9 @@ static void update(const StringSet & channelNames)
if (!unpacked) {
// Download the channel tarball.
try {
filename = store->toRealPath(fetchers::downloadFile(store, url + "/nixexprs.tar.xz", "nixexprs.tar.xz", false).storePath);
filename = store->toRealPath(fetchers::downloadFile(store, url + "/nixexprs.tar.xz", "nixexprs.tar.xz").storePath);
} catch (FileTransferError & e) {
filename = store->toRealPath(fetchers::downloadFile(store, url + "/nixexprs.tar.bz2", "nixexprs.tar.bz2", false).storePath);
filename = store->toRealPath(fetchers::downloadFile(store, url + "/nixexprs.tar.bz2", "nixexprs.tar.bz2").storePath);
}
}
// Regardless of where it came from, add the expression representing this channel to accumulated expression