nix-super/src/libstore/download.hh

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#pragma once
#include "types.hh"
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#include <string>
namespace nix {
struct DownloadOptions
{
string expectedETag;
bool verifyTLS{true};
enum { yes, no, automatic } showProgress{yes};
bool head{false};
};
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struct DownloadResult
{
bool cached;
string data, etag;
};
class Store;
struct Downloader
{
virtual DownloadResult download(string url, const DownloadOptions & options) = 0;
Path downloadCached(ref<Store> store, const string & url, bool unpack);
enum Error { NotFound, Forbidden, Misc };
};
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ref<Downloader> makeDownloader();
class DownloadError : public Error
{
public:
Downloader::Error error;
DownloadError(Downloader::Error error, const FormatOrString & fs)
: Error(fs), error(error)
{ }
};
bool isUri(const string & s);
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}