diff options
| -rw-r--r-- | src/libstore/build.cc | 99 |
1 files changed, 55 insertions, 44 deletions
diff --git a/src/libstore/build.cc b/src/libstore/build.cc index 7fc6ff0df0f8..607601e2aacb 100644 --- a/src/libstore/build.cc +++ b/src/libstore/build.cc @@ -864,6 +864,9 @@ private: /* Start building a derivation. */ void startBuilder(); + /* Handle the exportReferencesGraph attribute. */ + void doExportReferencesGraph(); + /* Run the builder's process. */ void runChild(); @@ -1791,51 +1794,9 @@ void DerivationGoal::startBuilder() for (auto & output : drv->outputs) inputRewrites[hashPlaceholder(output.first)] = output.second.path; - /* The `exportReferencesGraph' feature allows the references graph - to be passed to a builder. This attribute should be a list of - pairs [name1 path1 name2 path2 ...]. The references graph of - each `pathN' will be stored in a text file `nameN' in the - temporary build directory. The text files have the format used - by `nix-store --register-validity'. However, the deriver - fields are left empty. */ - string s = get(drv->env, "exportReferencesGraph"); - Strings ss = tokenizeString<Strings>(s); - if (ss.size() % 2 != 0) - throw BuildError(format("odd number of tokens in ‘exportReferencesGraph’: ‘%1%’") % s); - for (Strings::iterator i = ss.begin(); i != ss.end(); ) { - string fileName = *i++; - checkStoreName(fileName); /* !!! abuse of this function */ - /* Check that the store path is valid. */ - Path storePath = *i++; - if (!worker.store.isInStore(storePath)) - throw BuildError(format("‘exportReferencesGraph’ contains a non-store path ‘%1%’") - % storePath); - storePath = worker.store.toStorePath(storePath); - if (!worker.store.isValidPath(storePath)) - throw BuildError(format("‘exportReferencesGraph’ contains an invalid path ‘%1%’") - % storePath); - - /* If there are derivations in the graph, then include their - outputs as well. This is useful if you want to do things - like passing all build-time dependencies of some path to a - derivation that builds a NixOS DVD image. */ - PathSet paths, paths2; - worker.store.computeFSClosure(storePath, paths); - paths2 = paths; - - for (auto & j : paths2) { - if (isDerivation(j)) { - Derivation drv = worker.store.derivationFromPath(j); - for (auto & k : drv.outputs) - worker.store.computeFSClosure(k.second.path, paths); - } - } - - /* Write closure info to `fileName'. */ - writeFile(tmpDir + "/" + fileName, - worker.store.makeValidityRegistration(paths, false, false)); - } + /* Handle exportReferencesGraph(), if set. */ + doExportReferencesGraph(); /* If `build-users-group' is not empty, then we have to build as @@ -2242,6 +2203,56 @@ void DerivationGoal::startBuilder() } +void DerivationGoal::doExportReferencesGraph() +{ + /* The `exportReferencesGraph' feature allows the references graph + to be passed to a builder. This attribute should be a list of + pairs [name1 path1 name2 path2 ...]. The references graph of + each `pathN' will be stored in a text file `nameN' in the + temporary build directory. The text files have the format used + by `nix-store --register-validity'. However, the deriver + fields are left empty. */ + string s = get(drv->env, "exportReferencesGraph"); + Strings ss = tokenizeString<Strings>(s); + if (ss.size() % 2 != 0) + throw BuildError(format("odd number of tokens in ‘exportReferencesGraph’: ‘%1%’") % s); + for (Strings::iterator i = ss.begin(); i != ss.end(); ) { + string fileName = *i++; + checkStoreName(fileName); /* !!! abuse of this function */ + + /* Check that the store path is valid. */ + Path storePath = *i++; + if (!worker.store.isInStore(storePath)) + throw BuildError(format("‘exportReferencesGraph’ contains a non-store path ‘%1%’") + % storePath); + storePath = worker.store.toStorePath(storePath); + if (!worker.store.isValidPath(storePath)) + throw BuildError(format("‘exportReferencesGraph’ contains an invalid path ‘%1%’") + % storePath); + + /* If there are derivations in the graph, then include their + outputs as well. This is useful if you want to do things + like passing all build-time dependencies of some path to a + derivation that builds a NixOS DVD image. */ + PathSet paths, paths2; + worker.store.computeFSClosure(storePath, paths); + paths2 = paths; + + for (auto & j : paths2) { + if (isDerivation(j)) { + Derivation drv = worker.store.derivationFromPath(j); + for (auto & k : drv.outputs) + worker.store.computeFSClosure(k.second.path, paths); + } + } + + /* Write closure info to `fileName'. */ + writeFile(tmpDir + "/" + fileName, + worker.store.makeValidityRegistration(paths, false, false)); + } +} + + void DerivationGoal::runChild() { /* Warning: in the child we should absolutely not make any SQLite |