diff options
Diffstat (limited to 'src/libstore/build/derivation-goal.hh')
| -rw-r--r-- | src/libstore/build/derivation-goal.hh | 186 |
1 files changed, 21 insertions, 165 deletions
diff --git a/src/libstore/build/derivation-goal.hh b/src/libstore/build/derivation-goal.hh index 6dc164922..c85bcd84f 100644 --- a/src/libstore/build/derivation-goal.hh +++ b/src/libstore/build/derivation-goal.hh @@ -2,7 +2,8 @@ #include "parsed-derivations.hh" #include "lock.hh" -#include "local-store.hh" +#include "store-api.hh" +#include "pathlocks.hh" #include "goal.hh" namespace nix { @@ -79,18 +80,6 @@ struct DerivationGoal : public Goal std::map<std::string, InitialOutput> initialOutputs; - /* User selected for running the builder. */ - std::unique_ptr<UserLock> buildUser; - - /* The process ID of the builder. */ - Pid pid; - - /* The temporary directory. */ - Path tmpDir; - - /* The path of the temporary directory in the sandbox. */ - Path tmpDirInSandbox; - /* File descriptor for the log file. */ AutoCloseFD fdLogFile; std::shared_ptr<BufferedSink> logFileSink, logSink; @@ -106,79 +95,15 @@ struct DerivationGoal : public Goal std::string currentHookLine; - /* Pipe for the builder's standard output/error. */ - Pipe builderOut; - - /* Pipe for synchronising updates to the builder namespaces. */ - Pipe userNamespaceSync; - - /* The mount namespace of the builder, used to add additional - paths to the sandbox as a result of recursive Nix calls. */ - AutoCloseFD sandboxMountNamespace; - - /* On Linux, whether we're doing the build in its own user - namespace. */ - bool usingUserNamespace = true; - /* The build hook. */ std::unique_ptr<HookInstance> hook; - /* Whether we're currently doing a chroot build. */ - bool useChroot = false; - - Path chrootRootDir; - - /* RAII object to delete the chroot directory. */ - std::shared_ptr<AutoDelete> autoDelChroot; - /* The sort of derivation we are building. */ DerivationType derivationType; - /* Whether to run the build in a private network namespace. */ - bool privateNetwork = false; - typedef void (DerivationGoal::*GoalState)(); GoalState state; - /* Stuff we need to pass to initChild(). */ - struct ChrootPath { - Path source; - bool optional; - ChrootPath(Path source = "", bool optional = false) - : source(source), optional(optional) - { } - }; - typedef map<Path, ChrootPath> DirsInChroot; // maps target path to source path - DirsInChroot dirsInChroot; - - typedef map<string, string> Environment; - Environment env; - -#if __APPLE__ - typedef string SandboxProfile; - SandboxProfile additionalSandboxProfile; -#endif - - /* Hash rewriting. */ - StringMap inputRewrites, outputRewrites; - typedef map<StorePath, StorePath> RedirectedOutputs; - RedirectedOutputs redirectedOutputs; - - /* The outputs paths used during the build. - - - Input-addressed derivations or fixed content-addressed outputs are - sometimes built when some of their outputs already exist, and can not - be hidden via sandboxing. We use temporary locations instead and - rewrite after the build. Otherwise the regular predetermined paths are - put here. - - - Floating content-addressed derivations do not know their final build - output paths until the outputs are hashed, so random locations are - used, and then renamed. The randomness helps guard against hidden - self-references. - */ - OutputPathMap scratchOutputs; - /* The final output paths of the build. - For input-addressed derivations, always the precomputed paths @@ -191,11 +116,6 @@ struct DerivationGoal : public Goal BuildMode buildMode; - /* If we're repairing without a chroot, there may be outputs that - are valid but corrupt. So we redirect these outputs to - temporary paths. */ - StorePathSet redirectedBadOutputs; - BuildResult result; /* The current round, if we're building multiple times. */ @@ -203,17 +123,6 @@ struct DerivationGoal : public Goal size_t nrRounds; - /* Path registration info from the previous round, if we're - building multiple times. Since this contains the hash, it - allows us to compare whether two rounds produced the same - result. */ - std::map<Path, ValidPathInfo> prevInfos; - - uid_t sandboxUid() { return usingUserNamespace ? 1000 : buildUser->getUID(); } - gid_t sandboxGid() { return usingUserNamespace ? 100 : buildUser->getGID(); } - - const static Path homeDir; - std::unique_ptr<MaintainCount<uint64_t>> mcExpectedBuilds, mcRunningBuilds; std::unique_ptr<Activity> act; @@ -226,39 +135,13 @@ struct DerivationGoal : public Goal /* The remote machine on which we're building. */ std::string machineName; - /* The recursive Nix daemon socket. */ - AutoCloseFD daemonSocket; - - /* The daemon main thread. */ - std::thread daemonThread; - - /* The daemon worker threads. */ - std::vector<std::thread> daemonWorkerThreads; - - /* Paths that were added via recursive Nix calls. */ - StorePathSet addedPaths; - - /* Recursive Nix calls are only allowed to build or realize paths - in the original input closure or added via a recursive Nix call - (so e.g. you can't do 'nix-store -r /nix/store/<bla>' where - /nix/store/<bla> is some arbitrary path in a binary cache). */ - bool isAllowed(const StorePath & path) - { - return inputPaths.count(path) || addedPaths.count(path); - } - - friend struct RestrictedStore; - DerivationGoal(const StorePath & drvPath, const StringSet & wantedOutputs, Worker & worker, BuildMode buildMode = bmNormal); DerivationGoal(const StorePath & drvPath, const BasicDerivation & drv, const StringSet & wantedOutputs, Worker & worker, BuildMode buildMode = bmNormal); - ~DerivationGoal(); - - /* Whether we need to perform hash rewriting if there are valid output paths. */ - bool needsHashRewrite(); + virtual ~DerivationGoal(); void timedOut(Error && ex) override; @@ -280,7 +163,7 @@ struct DerivationGoal : public Goal void closureRepaired(); void inputsRealised(); void tryToBuild(); - void tryLocalBuild(); + virtual void tryLocalBuild(); void buildDone(); void resolvedFinished(); @@ -288,40 +171,11 @@ struct DerivationGoal : public Goal /* Is the build hook willing to perform the build? */ HookReply tryBuildHook(); - /* Start building a derivation. */ - void startBuilder(); - - /* Fill in the environment for the builder. */ - void initEnv(); - - /* Setup tmp dir location. */ - void initTmpDir(); - - /* Write a JSON file containing the derivation attributes. */ - void writeStructuredAttrs(); - - void startDaemon(); - - void stopDaemon(); - - /* Add 'path' to the set of paths that may be referenced by the - outputs, and make it appear in the sandbox. */ - void addDependency(const StorePath & path); - - /* Make a file owned by the builder. */ - void chownToBuilder(const Path & path); - - /* Run the builder's process. */ - void runChild(); + virtual int getChildStatus(); /* Check that the derivation outputs all exist and register them as valid. */ - void registerOutputs(); - - /* Check that an output meets the requirements specified by the - 'outputChecks' attribute (or the legacy - '{allowed,disallowed}{References,Requisites}' attributes). */ - void checkOutputs(const std::map<std::string, ValidPathInfo> & outputs); + virtual void registerOutputs(); /* Open a log file and a pipe to it. */ Path openLogFile(); @@ -329,8 +183,18 @@ struct DerivationGoal : public Goal /* Close the log file. */ void closeLogFile(); - /* Delete the temporary directory, if we have one. */ - void deleteTmpDir(bool force); + /* Close the read side of the logger pipe. */ + virtual void closeReadPipes(); + + /* Cleanup hooks for buildDone() */ + virtual void cleanupHookFinally(); + virtual void cleanupPreChildKill(); + virtual void cleanupPostChildKill(); + virtual bool cleanupDecideWhetherDiskFull(); + virtual void cleanupPostOutputsRegisteredModeCheck(); + virtual void cleanupPostOutputsRegisteredModeNonCheck(); + + virtual bool isReadDesc(int fd); /* Callback used by the worker to write to the log. */ void handleChildOutput(int fd, const string & data) override; @@ -347,17 +211,7 @@ struct DerivationGoal : public Goal void checkPathValidity(); /* Forcibly kill the child process, if any. */ - void killChild(); - - /* Create alternative path calculated from but distinct from the - input, so we can avoid overwriting outputs (or other store paths) - that already exist. */ - StorePath makeFallbackPath(const StorePath & path); - /* Make a path to another based on the output name along with the - derivation hash. */ - /* FIXME add option to randomize, so we can audit whether our - rewrites caught everything */ - StorePath makeFallbackPath(std::string_view outputName); + virtual void killChild(); void repairClosure(); @@ -370,4 +224,6 @@ struct DerivationGoal : public Goal StorePathSet exportReferences(const StorePathSet & storePaths); }; +MakeError(NotDeterministic, BuildError); + } |