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Allow selecting derivation outputs using 'installable!outputs'

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E.g. 'nixpkgs#glibc^dev,static' or 'nixpkgs#glibc^*'.
This commit is contained in:
Eelco Dolstra 2022-04-22 15:17:01 +02:00
parent 404c222444
commit 4a79cba511
17 changed files with 255 additions and 12 deletions
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16
src/libstore/path-with-outputs.cc
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@ -1,6 +1,8 @@
#include "path-with-outputs.hh"
#include "store-api.hh"
#include <regex>
namespace nix {
std::string StorePathWithOutputs::to_string(const Store & store) const
@ -68,4 +70,18 @@ StorePathWithOutputs followLinksToStorePathWithOutputs(const Store & store, std:
return StorePathWithOutputs { store.followLinksToStorePath(path), std::move(outputs) };
}
std::pair<std::string, OutputsSpec> parseOutputsSpec(const std::string & s)
{
static std::regex regex(R"((.*)\^((\*)|([a-z]+(,[a-z]+)*)))");
std::smatch match;
if (!std::regex_match(s, match, regex))
return {s, DefaultOutputs()};
if (match[3].matched)
return {match[1], AllOutputs()};
return {match[1], tokenizeString<OutputNames>(match[4].str(), ",")};
}
}