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This commit is contained in:
Eelco Dolstra 2024-07-05 16:29:16 +02:00
parent 8bdd0ecd80
commit e7e070d36b
2 changed files with 16 additions and 9 deletions
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23
src/libutil/tarfile.cc
View file

@ -67,6 +67,17 @@ int getArchiveFilterCodeByName(const std::string & method)
return code;
}
static void enableSupportedFormats(struct archive * archive)
{
archive_read_support_format_tar(archive);
archive_read_support_format_zip(archive);
/* Enable support for empty files so we don't throw an exception
for empty HTTP 304 "Not modified" responses. See
downloadTarball(). */
archive_read_support_format_empty(archive);
}
TarArchive::TarArchive(Source & source, bool raw, std::optional<std::string> compression_method)
: archive{archive_read_new()}
, source{&source}
@ -78,11 +89,9 @@ TarArchive::TarArchive(Source & source, bool raw, std::optional<std::string> com
archive_read_support_filter_by_code(archive, getArchiveFilterCodeByName(*compression_method));
}
if (!raw) {
archive_read_support_format_tar(archive);
archive_read_support_format_zip(archive);
archive_read_support_format_empty(archive);
} else {
if (!raw)
enableSupportedFormats(archive);
else {
archive_read_support_format_raw(archive);
archive_read_support_format_empty(archive);
}
@ -98,9 +107,7 @@ TarArchive::TarArchive(const Path & path)
, buffer(defaultBufferSize)
{
archive_read_support_filter_all(archive);
archive_read_support_format_tar(archive);
archive_read_support_format_zip(archive);
archive_read_support_format_empty(archive);
enableSupportedFormats(archive);
archive_read_set_option(archive, NULL, "mac-ext", NULL);
check(archive_read_open_filename(archive, path.c_str(), 16384), "failed to open archive: %s");
}

2
tests/nixos/tarball-flakes.nix
View file

@ -74,7 +74,7 @@ in
assert info["revision"] == "${nixpkgs.rev}"
assert info["revCount"] == 1234
# Check that a 0-byte cached (304) result works.
# Check that a 0-byte HTTP 304 "Not modified" result works.
machine.succeed("nix flake metadata --refresh --json http://localhost/tags/latest.tar.gz")
# Check that fetching with rev/revCount/narHash succeeds.