diff options
Diffstat (limited to 'src/nix-store')
| -rw-r--r-- | src/nix-store/help.txt | 3 | ||||
| -rw-r--r-- | src/nix-store/nix-store.cc | 13 |
2 files changed, 11 insertions, 5 deletions
diff --git a/src/nix-store/help.txt b/src/nix-store/help.txt index 342281b33..478251851 100644 --- a/src/nix-store/help.txt +++ b/src/nix-store/help.txt @@ -16,7 +16,7 @@ Operations: --gc: run the garbage collector - --dump: dump a path as a Nix archive, forgetting dependencies + --dump: dump a path as a Nix archive (NAR), forgetting dependencies --restore: restore a path from a Nix archive, without registering validity @@ -44,6 +44,7 @@ Query flags: --graph: print a dot graph rooted at given path --xml: emit an XML representation of the graph rooted at the given path --hash: print the SHA-256 hash of the contents of the path + --size: print the size of the NAR dump of the path --roots: print the garbage collector roots that point to the path Query switches (not applicable to all queries): diff --git a/src/nix-store/nix-store.cc b/src/nix-store/nix-store.cc index 120f6ce72..49a705585 100644 --- a/src/nix-store/nix-store.cc +++ b/src/nix-store/nix-store.cc @@ -226,7 +226,7 @@ static void printTree(const Path & path, static void opQuery(Strings opFlags, Strings opArgs) { enum { qOutputs, qRequisites, qReferences, qReferrers - , qReferrersClosure, qDeriver, qBinding, qHash + , qReferrersClosure, qDeriver, qBinding, qHash, qSize , qTree, qGraph, qXml, qResolve, qRoots } query = qOutputs; bool useOutput = false; bool includeOutputs = false; @@ -248,6 +248,7 @@ static void opQuery(Strings opFlags, Strings opArgs) query = qBinding; } else if (*i == "--hash") query = qHash; + else if (*i == "--size") query = qSize; else if (*i == "--tree") query = qTree; else if (*i == "--graph") query = qGraph; else if (*i == "--xml") query = qXml; @@ -310,11 +311,15 @@ static void opQuery(Strings opFlags, Strings opArgs) break; case qHash: + case qSize: foreach (Strings::iterator, i, opArgs) { Path path = maybeUseOutput(followLinksToStorePath(*i), useOutput, forceRealise); - Hash hash = store->queryPathHash(path); - assert(hash.type == htSHA256); - cout << format("sha256:%1%\n") % printHash32(hash); + ValidPathInfo info = store->queryPathInfo(path); + if (query == qHash) { + assert(info.hash.type == htSHA256); + cout << format("sha256:%1%\n") % printHash32(info.hash); + } else if (query == qSize) + cout << format("%1%\n") % info.narSize; } break; |