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Remove FlakeRef::fetchTree()

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This commit is contained in:
Eelco Dolstra 2022-07-25 15:12:28 +02:00
parent 022390af5a
commit e7faf65784
4 changed files with 6 additions and 23 deletions
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6
src/libexpr/flake/flakeref.cc
View file

@ -229,12 +229,6 @@ FlakeRef FlakeRef::fromAttrs(const fetchers::Attrs & attrs)
fetchers::maybeGetStrAttr(attrs, "dir").value_or(""));
}
std::pair<fetchers::Tree, FlakeRef> FlakeRef::fetchTree(ref<Store> store) const
{
auto [tree, lockedInput] = input.fetch(store);
return {std::move(tree), FlakeRef(std::move(lockedInput), subdir)};
}
std::pair<ref<InputAccessor>, FlakeRef> FlakeRef::lazyFetch(ref<Store> store) const
{
auto [accessor, lockedInput] = input.lazyFetch(store);

2
src/libexpr/flake/flakeref.hh
View file

@ -57,8 +57,6 @@ struct FlakeRef
static FlakeRef fromAttrs(const fetchers::Attrs & attrs);
std::pair<fetchers::Tree, FlakeRef> fetchTree(ref<Store> store) const;
std::pair<ref<InputAccessor>, FlakeRef> lazyFetch(ref<Store> store) const;
};

9
src/nix/flake-prefetch.md
View file

@ -2,21 +2,18 @@ R""(
# Examples
* Download a tarball and unpack it:
* Download a tarball:
```console
# nix flake prefetch https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.5.tar.xz
Downloaded 'https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.5.tar.xz?narHash=sha256-3XYHZANT6AFBV0BqegkAZHbba6oeDkIUCDwbATLMhAY='
to '/nix/store/sl5vvk8mb4ma1sjyy03kwpvkz50hd22d-source' (hash
'sha256-3XYHZANT6AFBV0BqegkAZHbba6oeDkIUCDwbATLMhAY=').
Fetched 'https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.5.tar.xz?narHash=sha256-3XYHZANT6AFBV0BqegkAZHbba6oeDkIUCDwbATLMhAY='.
```
* Download the `dwarffs` flake (looked up in the flake registry):
```console
# nix flake prefetch dwarffs --json
{"hash":"sha256-VHg3MYVgQ12LeRSU2PSoDeKlSPD8PYYEFxxwkVVDRd0="
,"storePath":"/nix/store/hang3792qwdmm2n0d9nsrs5n6bsws6kv-source"}
{}
```
# Description

12
src/nix/flake.cc
View file

@ -1163,7 +1163,7 @@ struct CmdFlakePrefetch : FlakeCommand, MixJSON
std::string description() override
{
return "download the source tree denoted by a flake reference into the Nix store";
return "fetch the source tree denoted by a flake reference";
}
std::string doc() override
@ -1177,19 +1177,13 @@ struct CmdFlakePrefetch : FlakeCommand, MixJSON
{
auto originalRef = getFlakeRef();
auto resolvedRef = originalRef.resolve(store);
auto [tree, lockedRef] = resolvedRef.fetchTree(store);
auto hash = store->queryPathInfo(tree.storePath)->narHash;
auto [accessor, lockedRef] = resolvedRef.lazyFetch(store);
if (json) {
auto res = nlohmann::json::object();
res["storePath"] = store->printStorePath(tree.storePath);
res["hash"] = hash.to_string(SRI, true);
logger->cout(res.dump());
} else {
notice("Downloaded '%s' to '%s' (hash '%s').",
lockedRef.to_string(),
store->printStorePath(tree.storePath),
hash.to_string(SRI, true));
notice("Fetched '%s'.", lockedRef.to_string());
}
}
};