diff options
Diffstat (limited to 'third_party/nix/src/libstore/download.hh')
| -rw-r--r-- | third_party/nix/src/libstore/download.hh | 194 |
1 files changed, 95 insertions, 99 deletions
diff --git a/third_party/nix/src/libstore/download.hh b/third_party/nix/src/libstore/download.hh index 68565bf462..8e07403bcc 100644 --- a/third_party/nix/src/libstore/download.hh +++ b/third_party/nix/src/libstore/download.hh @@ -1,120 +1,118 @@ #pragma once -#include "types.hh" -#include "hash.hh" -#include "globals.hh" - -#include <string> #include <future> +#include <string> +#include "globals.hh" +#include "hash.hh" +#include "types.hh" namespace nix { -struct DownloadSettings : Config -{ - Setting<bool> enableHttp2{this, true, "http2", - "Whether to enable HTTP/2 support."}; - - Setting<std::string> userAgentSuffix{this, "", "user-agent-suffix", - "String appended to the user agent in HTTP requests."}; - - Setting<size_t> httpConnections{this, 25, "http-connections", - "Number of parallel HTTP connections.", - {"binary-caches-parallel-connections"}}; - - Setting<unsigned long> connectTimeout{this, 0, "connect-timeout", - "Timeout for connecting to servers during downloads. 0 means use curl's builtin default."}; - - Setting<unsigned long> stalledDownloadTimeout{this, 300, "stalled-download-timeout", - "Timeout (in seconds) for receiving data from servers during download. Nix cancels idle downloads after this timeout's duration."}; - - Setting<unsigned int> tries{this, 5, "download-attempts", - "How often Nix will attempt to download a file before giving up."}; +struct DownloadSettings : Config { + Setting<bool> enableHttp2{this, true, "http2", + "Whether to enable HTTP/2 support."}; + + Setting<std::string> userAgentSuffix{ + this, "", "user-agent-suffix", + "String appended to the user agent in HTTP requests."}; + + Setting<size_t> httpConnections{this, + 25, + "http-connections", + "Number of parallel HTTP connections.", + {"binary-caches-parallel-connections"}}; + + Setting<unsigned long> connectTimeout{ + this, 0, "connect-timeout", + "Timeout for connecting to servers during downloads. 0 means use curl's " + "builtin default."}; + + Setting<unsigned long> stalledDownloadTimeout{ + this, 300, "stalled-download-timeout", + "Timeout (in seconds) for receiving data from servers during download. " + "Nix cancels idle downloads after this timeout's duration."}; + + Setting<unsigned int> tries{ + this, 5, "download-attempts", + "How often Nix will attempt to download a file before giving up."}; }; extern DownloadSettings downloadSettings; -struct DownloadRequest -{ - std::string uri; - std::string expectedETag; - bool verifyTLS = true; - bool head = false; - size_t tries = downloadSettings.tries; - unsigned int baseRetryTimeMs = 250; - ActivityId parentAct; - bool decompress = true; - std::shared_ptr<std::string> data; - std::string mimeType; - std::function<void(char *, size_t)> dataCallback; - - DownloadRequest(const std::string & uri) - : uri(uri), parentAct(getCurActivity()) { } - - std::string verb() - { - return data ? "upload" : "download"; - } +struct DownloadRequest { + std::string uri; + std::string expectedETag; + bool verifyTLS = true; + bool head = false; + size_t tries = downloadSettings.tries; + unsigned int baseRetryTimeMs = 250; + ActivityId parentAct; + bool decompress = true; + std::shared_ptr<std::string> data; + std::string mimeType; + std::function<void(char*, size_t)> dataCallback; + + DownloadRequest(const std::string& uri) + : uri(uri), parentAct(getCurActivity()) {} + + std::string verb() { return data ? "upload" : "download"; } }; -struct DownloadResult -{ - bool cached = false; - std::string etag; - std::string effectiveUri; - std::shared_ptr<std::string> data; - uint64_t bodySize = 0; +struct DownloadResult { + bool cached = false; + std::string etag; + std::string effectiveUri; + std::shared_ptr<std::string> data; + uint64_t bodySize = 0; }; -struct CachedDownloadRequest -{ - std::string uri; - bool unpack = false; - std::string name; - Hash expectedHash; - unsigned int ttl = settings.tarballTtl; +struct CachedDownloadRequest { + std::string uri; + bool unpack = false; + std::string name; + Hash expectedHash; + unsigned int ttl = settings.tarballTtl; - CachedDownloadRequest(const std::string & uri) - : uri(uri) { } + CachedDownloadRequest(const std::string& uri) : uri(uri) {} }; -struct CachedDownloadResult -{ - // Note: 'storePath' may be different from 'path' when using a - // chroot store. - Path storePath; - Path path; - std::optional<std::string> etag; - std::string effectiveUri; +struct CachedDownloadResult { + // Note: 'storePath' may be different from 'path' when using a + // chroot store. + Path storePath; + Path path; + std::optional<std::string> etag; + std::string effectiveUri; }; class Store; -struct Downloader -{ - virtual ~Downloader() { } +struct Downloader { + virtual ~Downloader() {} - /* Enqueue a download request, returning a future to the result of - the download. The future may throw a DownloadError - exception. */ - virtual void enqueueDownload(const DownloadRequest & request, - Callback<DownloadResult> callback) = 0; + /* Enqueue a download request, returning a future to the result of + the download. The future may throw a DownloadError + exception. */ + virtual void enqueueDownload(const DownloadRequest& request, + Callback<DownloadResult> callback) = 0; - std::future<DownloadResult> enqueueDownload(const DownloadRequest & request); + std::future<DownloadResult> enqueueDownload(const DownloadRequest& request); - /* Synchronously download a file. */ - DownloadResult download(const DownloadRequest & request); + /* Synchronously download a file. */ + DownloadResult download(const DownloadRequest& request); - /* Download a file, writing its data to a sink. The sink will be - invoked on the thread of the caller. */ - void download(DownloadRequest && request, Sink & sink); + /* Download a file, writing its data to a sink. The sink will be + invoked on the thread of the caller. */ + void download(DownloadRequest&& request, Sink& sink); - /* Check if the specified file is already in ~/.cache/nix/tarballs - and is more recent than ‘tarball-ttl’ seconds. Otherwise, - use the recorded ETag to verify if the server has a more - recent version, and if so, download it to the Nix store. */ - CachedDownloadResult downloadCached(ref<Store> store, const CachedDownloadRequest & request); + /* Check if the specified file is already in ~/.cache/nix/tarballs + and is more recent than ‘tarball-ttl’ seconds. Otherwise, + use the recorded ETag to verify if the server has a more + recent version, and if so, download it to the Nix store. */ + CachedDownloadResult downloadCached(ref<Store> store, + const CachedDownloadRequest& request); - enum Error { NotFound, Forbidden, Misc, Transient, Interrupted }; + enum Error { NotFound, Forbidden, Misc, Transient, Interrupted }; }; /* Return a shared Downloader object. Using this object is preferred @@ -124,15 +122,13 @@ ref<Downloader> getDownloader(); /* Return a new Downloader object. */ ref<Downloader> makeDownloader(); -class DownloadError : public Error -{ -public: - Downloader::Error error; - DownloadError(Downloader::Error error, const FormatOrString & fs) - : Error(fs), error(error) - { } +class DownloadError : public Error { + public: + Downloader::Error error; + DownloadError(Downloader::Error error, const FormatOrString& fs) + : Error(fs), error(error) {} }; -bool isUri(const string & s); +bool isUri(const string& s); -} +} // namespace nix |