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Allow relative paths in --store option #3736

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merged 5 commits into from Jul 21, 2020
Merged

Allow relative paths in --store option #3736

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e197bc6
Enable the --store option to take relative paths
meditans Jun 23, 2020
278a679
Merge branch 'master' of github.com:NixOS/nix into allow-relative-pat…
meditans Jun 26, 2020
fefd6c9
Merge branch 'master' of github.com:NixOS/nix into allow-relative-pat…
meditans Jul 17, 2020
4178f36
Test relative store paths
meditans Jul 17, 2020
6cce32c
Change logic for deciding what is a relative path for the local store
Ericson2314 Jul 21, 2020
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15 changes: 12 additions & 3 deletions src/libstore/store-api.cc
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Expand Up @@ -914,12 +914,20 @@ ref<Store> openStore(const std::string & uri_,
throw Error("don't know how to open Nix store '%s'", uri);
}

static bool isNonUriPath(const std::string & spec) {
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Can you just use !isUri from file-transfer?

return
// is not a URL
spec.find("://") == std::string::npos
// Has at least one path separator, and so isn't a single word that
// might be special like "auto"
&& spec.find("/") != std::string::npos;
}

StoreType getStoreType(const std::string & uri, const std::string & stateDir)
{
if (uri == "daemon") {
return tDaemon;
} else if (uri == "local" || hasPrefix(uri, "/")) {
} else if (uri == "local" || isNonUriPath(uri)) {
return tLocal;
} else if (uri == "" || uri == "auto") {
if (access(stateDir.c_str(), R_OK | W_OK) == 0)
Expand All @@ -943,8 +951,9 @@ static RegisterStoreImplementation regStore([](
return std::shared_ptr<Store>(std::make_shared<UDSRemoteStore>(params));
case tLocal: {
Store::Params params2 = params;
if (hasPrefix(uri, "/"))
params2["root"] = uri;
if (isNonUriPath(uri)) {
params2["root"] = absPath(uri);
}
return std::shared_ptr<Store>(std::make_shared<LocalStore>(params2));
}
default:
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20 changes: 20 additions & 0 deletions tests/local-store.sh
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@@ -0,0 +1,20 @@
source common.sh

cd $TEST_ROOT

echo example > example.txt
mkdir -p ./x

NIX_STORE_DIR=$TEST_ROOT/x

CORRECT_PATH=$(nix-store --store ./x --add example.txt)

PATH1=$(nix path-info --store ./x $CORRECT_PATH)
[ $CORRECT_PATH == $PATH1 ]

PATH2=$(nix path-info --store "$PWD/x" $CORRECT_PATH)
[ $CORRECT_PATH == $PATH2 ]

# FIXME we could also test the query parameter version:
# PATH3=$(nix path-info --store "local?store=$PWD/x" $CORRECT_PATH)
# [ $CORRECT_PATH == $PATH3 ]
2 changes: 1 addition & 1 deletion tests/local.mk
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Expand Up @@ -6,7 +6,7 @@ nix_tests = \
gc-auto.sh \
referrers.sh user-envs.sh logging.sh nix-build.sh misc.sh fixed.sh \
gc-runtime.sh check-refs.sh filter-source.sh \
remote-store.sh export.sh export-graph.sh \
local-store.sh remote-store.sh export.sh export-graph.sh \
timeout.sh secure-drv-outputs.sh nix-channel.sh \
multiple-outputs.sh import-derivation.sh fetchurl.sh optimise-store.sh \
binary-cache.sh nix-profile.sh repair.sh dump-db.sh case-hack.sh \
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