diff options
| author | Eelco Dolstra <edolstra@gmail.com> | 2022-06-23 16:29:50 +0200 |
|---|---|---|
| committer | Eelco Dolstra <edolstra@gmail.com> | 2022-06-23 16:29:50 +0200 |
| commit | 2a9fddc0b16d9b4771d11fc10d8b2a9cba55ff64 (patch) | |
| tree | 0353547c8c2869fe341004bdf9f2d1a874642ab1 /src/libstore | |
| parent | 3c57db1a0f5438015c19285ec02fd15d9c6cb51f (diff) | |
Automatically use a chroot store if /nix doesn't exist
Specifically, if we're not root and the daemon socket does not exist,
then we use ~/.local/share/nix/root as a chroot store. This enables
non-root users to download nix-static and have it work out of the box,
e.g.
ubuntu@ip-10-13-1-146:~$ ~/nix run nixpkgs#hello
warning: '/nix' does not exists, so Nix will use '/home/ubuntu/.local/share/nix/root' as a chroot store
Hello, world!
Diffstat (limited to 'src/libstore')
| -rw-r--r-- | src/libstore/store-api.cc | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/src/libstore/store-api.cc b/src/libstore/store-api.cc index 8861274a2..b46b3066b 100644 --- a/src/libstore/store-api.cc +++ b/src/libstore/store-api.cc @@ -1302,7 +1302,8 @@ std::pair<std::string, Store::Params> splitUriAndParams(const std::string & uri_ return {uri, params}; } -static bool isNonUriPath(const std::string & spec) { +static bool isNonUriPath(const std::string & spec) +{ return // is not a URL spec.find("://") == std::string::npos @@ -1319,7 +1320,19 @@ std::shared_ptr<Store> openFromNonUri(const std::string & uri, const Store::Para return std::make_shared<LocalStore>(params); else if (pathExists(settings.nixDaemonSocketFile)) return std::make_shared<UDSRemoteStore>(params); - else + else if (!pathExists(stateDir) && params.empty() && getuid() != 0) { + /* If /nix doesn't exist, there is no daemon socket, and + we're not root, then automatically set up a chroot + store in ~/.local/share/nix/root. */ + auto chrootStore = getDataDir() + "/nix/root"; + if (!pathExists(chrootStore)) + warn("'/nix' does not exists, so Nix will use '%s' as a chroot store", chrootStore); + else + debug("'/nix' does not exists, so Nix will use '%s' as a chroot store", chrootStore); + Store::Params params2; + params2["root"] = chrootStore; + return std::make_shared<LocalStore>(params2); + } else return std::make_shared<LocalStore>(params); } else if (uri == "daemon") { return std::make_shared<UDSRemoteStore>(params); |