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author | Vincent Ambo <tazjin@google.com> | 2020-05-17T14·52+0100 |
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committer | Vincent Ambo <tazjin@google.com> | 2020-05-17T14·52+0100 |
commit | 7994fd1d545cc5c876d6f21db7ddf9185d23dad6 (patch) | |
tree | 32dd695785378c5b9c8be97fc583e9dfc62cb105 /third_party/nix/src/nix/dump-path.cc | |
parent | cf8cd640c1adf74a3706efbcb0ea4625da106fb2 (diff) | |
parent | 90b3b31dc27f31e9b11653a636025d29ddb087a3 (diff) |
Add 'third_party/nix/' from commit 'be66c7a6b24e3c3c6157fd37b86c7203d14acf10' r/724
git-subtree-dir: third_party/nix git-subtree-mainline: cf8cd640c1adf74a3706efbcb0ea4625da106fb2 git-subtree-split: be66c7a6b24e3c3c6157fd37b86c7203d14acf10
Diffstat (limited to 'third_party/nix/src/nix/dump-path.cc')
-rw-r--r-- | third_party/nix/src/nix/dump-path.cc | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/third_party/nix/src/nix/dump-path.cc b/third_party/nix/src/nix/dump-path.cc new file mode 100644 index 000000000000..f411c0cb7c89 --- /dev/null +++ b/third_party/nix/src/nix/dump-path.cc @@ -0,0 +1,36 @@ +#include "command.hh" +#include "store-api.hh" + +using namespace nix; + +struct CmdDumpPath : StorePathCommand +{ + std::string name() override + { + return "dump-path"; + } + + std::string description() override + { + return "dump a store path to stdout (in NAR format)"; + } + + Examples examples() override + { + return { + Example{ + "To get a NAR from the binary cache https://cache.nixos.org/:", + "nix dump-path --store https://cache.nixos.org/ /nix/store/7crrmih8c52r8fbnqb933dxrsp44md93-glibc-2.25" + }, + }; + } + + void run(ref<Store> store, const Path & storePath) override + { + FdSink sink(STDOUT_FILENO); + store->narFromPath(storePath, sink); + sink.flush(); + } +}; + +static RegisterCommand r1(make_ref<CmdDumpPath>()); |