diff options
Diffstat (limited to 'src/nix/make-content-addressable.cc')
-rw-r--r-- | src/nix/make-content-addressable.cc | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/src/nix/make-content-addressable.cc b/src/nix/make-content-addressable.cc deleted file mode 100644 index 2e75a3b61..000000000 --- a/src/nix/make-content-addressable.cc +++ /dev/null @@ -1,102 +0,0 @@ -#include "command.hh" -#include "store-api.hh" -#include "references.hh" -#include "common-args.hh" -#include "json.hh" - -using namespace nix; - -struct CmdMakeContentAddressable : StorePathsCommand, MixJSON -{ - CmdMakeContentAddressable() - { - realiseMode = Realise::Outputs; - } - - std::string description() override - { - return "rewrite a path or closure to content-addressed form"; - } - - std::string doc() override - { - return - #include "make-content-addressable.md" - ; - } - - void run(ref<Store> store, StorePaths && storePaths) override - { - auto paths = store->topoSortPaths(StorePathSet(storePaths.begin(), storePaths.end())); - - std::reverse(paths.begin(), paths.end()); - - std::map<StorePath, StorePath> remappings; - - auto jsonRoot = json ? std::make_unique<JSONObject>(std::cout) : nullptr; - auto jsonRewrites = json ? std::make_unique<JSONObject>(jsonRoot->object("rewrites")) : nullptr; - - for (auto & path : paths) { - auto pathS = store->printStorePath(path); - auto oldInfo = store->queryPathInfo(path); - std::string oldHashPart(path.hashPart()); - - StringSink sink; - store->narFromPath(path, sink); - - StringMap rewrites; - - StorePathSet references; - bool hasSelfReference = false; - for (auto & ref : oldInfo->references) { - if (ref == path) - hasSelfReference = true; - else { - auto i = remappings.find(ref); - auto replacement = i != remappings.end() ? i->second : ref; - // FIXME: warn about unremapped paths? - if (replacement != ref) - rewrites.insert_or_assign(store->printStorePath(ref), store->printStorePath(replacement)); - references.insert(std::move(replacement)); - } - } - - sink.s = rewriteStrings(sink.s, rewrites); - - HashModuloSink hashModuloSink(htSHA256, oldHashPart); - hashModuloSink(sink.s); - - auto narHash = hashModuloSink.finish().first; - - ValidPathInfo info { - store->makeFixedOutputPath(FileIngestionMethod::Recursive, narHash, path.name(), references, hasSelfReference), - narHash, - }; - info.references = std::move(references); - if (hasSelfReference) info.references.insert(info.path); - info.narSize = sink.s.size(); - info.ca = FixedOutputHash { - .method = FileIngestionMethod::Recursive, - .hash = info.narHash, - }; - - if (!json) - notice("rewrote '%s' to '%s'", pathS, store->printStorePath(info.path)); - - auto source = sinkToSource([&](Sink & nextSink) { - RewritingSink rsink2(oldHashPart, std::string(info.path.hashPart()), nextSink); - rsink2(sink.s); - rsink2.flush(); - }); - - store->addToStore(info, *source); - - if (json) - jsonRewrites->attr(store->printStorePath(path), store->printStorePath(info.path)); - - remappings.insert_or_assign(std::move(path), std::move(info.path)); - } - } -}; - -static auto rCmdMakeContentAddressable = registerCommand2<CmdMakeContentAddressable>({"store", "make-content-addressable"}); |