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Merge pull request #6714 from edolstra/auto-chroot-store

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Automatically use a chroot store if /nix doesn't exist
This commit is contained in:
Eelco Dolstra 2022-06-25 00:03:35 +02:00 committed by GitHub
parent 749d914d10 30d4aa5dd6
commit 586fa707fc
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 17 additions and 1 deletions
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18
src/libstore/store-api.cc
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@ -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
@ -1319,6 +1320,21 @@ 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);
#if __linux__
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 exist, so Nix will use '%s' as a chroot store", chrootStore);
else
debug("'/nix' does not exist, so Nix will use '%s' as a chroot store", chrootStore);
Store::Params params2;
params2["root"] = chrootStore;
return std::make_shared<LocalStore>(params2);
}
#endif
else
return std::make_shared<LocalStore>(params);
} else if (uri == "daemon") {