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parseInstallables(): Parse store paths as store paths

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If the store path contains a flake, this means that a command like
"nix path-info /path" will show info about /path, not about the
default output of the flake in /path. If you want the latter, you can
explicitly ask for it by doing "nix path-info path:/path".

Fixes #4568.
This commit is contained in:
Eelco Dolstra 2021-09-02 14:01:07 +02:00
parent b2f966f487
commit b2e8120d25
2 changed files with 15 additions and 18 deletions
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29
src/libcmd/installables.cc
View file

@ -654,6 +654,17 @@ std::vector<std::shared_ptr<Installable>> SourceExprCommand::parseInstallables(
for (auto & s : ss) {
std::exception_ptr ex;
if (s.find('/') != std::string::npos) {
try {
result.push_back(std::make_shared<InstallableStorePath>(store, store->followLinksToStorePath(s)));
continue;
} catch (BadStorePath &) {
} catch (...) {
if (!ex)
ex = std::current_exception();
}
}
try {
auto [flakeRef, fragment] = parseFlakeRefWithFragment(s, absPath("."));
result.push_back(std::make_shared<InstallableFlake>(
@ -668,25 +679,7 @@ std::vector<std::shared_ptr<Installable>> SourceExprCommand::parseInstallables(
ex = std::current_exception();
}
if (s.find('/') != std::string::npos) {
try {
result.push_back(std::make_shared<InstallableStorePath>(store, store->followLinksToStorePath(s)));
continue;
} catch (BadStorePath &) {
} catch (...) {
if (!ex)
ex = std::current_exception();
}
}
std::rethrow_exception(ex);
/*
throw Error(
pathExists(s)
? "path '%s' is not a flake or a store path"
: "don't know how to handle argument '%s'", s);
*/
}
}

4
tests/flakes.sh
View file

@ -775,6 +775,10 @@ git -C $flakeFollowsA add flake.nix
nix flake lock $flakeFollowsA 2>&1 | grep 'this is a security violation'
# Test flake in store does not evaluate
rm -rf $badFlakeDir
mkdir $badFlakeDir
echo INVALID > $badFlakeDir/flake.nix
nix store delete $(nix store add-path $badFlakeDir)
[[ $(nix path-info $(nix store add-path $flake1Dir)) =~ flake1 ]]
[[ $(nix path-info path:$(nix store add-path $flake1Dir)) =~ simple ]]