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nix profile: Support overriding outputs

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This commit is contained in:
Eelco Dolstra 2022-05-03 14:37:28 +02:00
parent 4a79cba511
commit a3c6c5b1c7
7 changed files with 101 additions and 19 deletions
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40
src/libstore/path-with-outputs.cc
View file

@ -1,5 +1,6 @@
#include "path-with-outputs.hh"
#include "store-api.hh"
#include "nlohmann/json.hpp"
#include <regex>
@ -84,4 +85,43 @@ std::pair<std::string, OutputsSpec> parseOutputsSpec(const std::string & s)
return {match[1], tokenizeString<OutputNames>(match[4].str(), ",")};
}
std::string printOutputsSpec(const OutputsSpec & outputsSpec)
{
if (std::get_if<DefaultOutputs>(&outputsSpec))
return "";
if (std::get_if<AllOutputs>(&outputsSpec))
return "^*";
if (auto outputNames = std::get_if<OutputNames>(&outputsSpec))
return "^" + concatStringsSep(",", *outputNames);
assert(false);
}
void to_json(nlohmann::json & json, const OutputsSpec & outputsSpec)
{
if (std::get_if<DefaultOutputs>(&outputsSpec))
json = nullptr;
else if (std::get_if<AllOutputs>(&outputsSpec))
json = std::vector<std::string>({"*"});
else if (auto outputNames = std::get_if<OutputNames>(&outputsSpec))
json = *outputNames;
}
void from_json(const nlohmann::json & json, OutputsSpec & outputsSpec)
{
if (json.is_null())
outputsSpec = DefaultOutputs();
else {
auto names = json.get<OutputNames>();
if (names == OutputNames({"*"}))
outputsSpec = AllOutputs();
else
outputsSpec = names;
}
}
}

14
src/libstore/path-with-outputs.hh
View file

@ -4,6 +4,7 @@
#include "path.hh"
#include "derived-path.hh"
#include "nlohmann/json_fwd.hpp"
namespace nix {
@ -34,9 +35,13 @@ StorePathWithOutputs followLinksToStorePathWithOutputs(const Store & store, std:
typedef std::set<std::string> OutputNames;
struct AllOutputs { };
struct AllOutputs {
bool operator < (const AllOutputs & _) const { return false; }
};
struct DefaultOutputs { };
struct DefaultOutputs {
bool operator < (const DefaultOutputs & _) const { return false; }
};
typedef std::variant<DefaultOutputs, AllOutputs, OutputNames> OutputsSpec;
@ -44,4 +49,9 @@ typedef std::variant<DefaultOutputs, AllOutputs, OutputNames> OutputsSpec;
'prefix^*', returning the prefix and the outputs spec. */
std::pair<std::string, OutputsSpec> parseOutputsSpec(const std::string & s);
std::string printOutputsSpec(const OutputsSpec & outputsSpec);
void to_json(nlohmann::json &, const OutputsSpec &);
void from_json(const nlohmann::json &, OutputsSpec &);
}

6
src/libutil/experimental-features.cc
View file

@ -58,11 +58,13 @@ std::ostream & operator <<(std::ostream & str, const ExperimentalFeature & featu
return str << showExperimentalFeature(feature);
}
void to_json(nlohmann::json& j, const ExperimentalFeature& feature) {
void to_json(nlohmann::json & j, const ExperimentalFeature & feature)
{
j = showExperimentalFeature(feature);
}
void from_json(const nlohmann::json& j, ExperimentalFeature& feature) {
void from_json(const nlohmann::json & j, ExperimentalFeature & feature)
{
const std::string input = j;
const auto parsed = parseExperimentalFeature(input);

4
src/libutil/experimental-features.hh
View file

@ -55,7 +55,7 @@ public:
* Semi-magic conversion to and from json.
* See the nlohmann/json readme for more details.
*/
void to_json(nlohmann::json&, const ExperimentalFeature&);
void from_json(const nlohmann::json&, ExperimentalFeature&);
void to_json(nlohmann::json &, const ExperimentalFeature &);
void from_json(const nlohmann::json &, ExperimentalFeature &);
}

7
src/nix/profile-install.md
View file

@ -20,6 +20,13 @@ R""(
# nix profile install nixpkgs/d73407e8e6002646acfdef0e39ace088bacc83da#hello
```
* Install a specific output of a package:
```console
# nix profile install nixpkgs#bash^man
```
# Description
This command adds *installables* to a Nix profile.

30
src/nix/profile.cc
View file

@ -22,13 +22,13 @@ struct ProfileElementSource
// FIXME: record original attrpath.
FlakeRef resolvedRef;
std::string attrPath;
// FIXME: output names
OutputsSpec outputs;
bool operator < (const ProfileElementSource & other) const
{
return
std::pair(originalRef.to_string(), attrPath) <
std::pair(other.originalRef.to_string(), other.attrPath);
std::tuple(originalRef.to_string(), attrPath, outputs) <
std::tuple(other.originalRef.to_string(), other.attrPath, other.outputs);
}
};
@ -42,7 +42,7 @@ struct ProfileElement
std::string describe() const
{
if (source)
return fmt("%s#%s", source->originalRef, source->attrPath);
return fmt("%s#%s%s", source->originalRef, source->attrPath, printOutputsSpec(source->outputs));
StringSet names;
for (auto & path : storePaths)
names.insert(DrvName(path.name()).name);
@ -98,7 +98,7 @@ struct ProfileManifest
auto version = json.value("version", 0);
std::string sUrl;
std::string sOriginalUrl;
switch(version){
switch (version) {
case 1:
sUrl = "uri";
sOriginalUrl = "originalUri";
@ -116,11 +116,12 @@ struct ProfileManifest
for (auto & p : e["storePaths"])
element.storePaths.insert(state.store->parseStorePath((std::string) p));
element.active = e["active"];
if (e.value(sUrl,"") != "") {
element.source = ProfileElementSource{
if (e.value(sUrl, "") != "") {
element.source = ProfileElementSource {
parseFlakeRef(e[sOriginalUrl]),
parseFlakeRef(e[sUrl]),
e["attrPath"]
e["attrPath"],
e["outputs"].get<OutputsSpec>()
};
}
elements.emplace_back(std::move(element));
@ -156,6 +157,7 @@ struct ProfileManifest
obj["originalUrl"] = element.source->originalRef.to_string();
obj["url"] = element.source->resolvedRef.to_string();
obj["attrPath"] = element.source->attrPath;
obj["outputs"] = element.source->outputs;
}
array.push_back(obj);
}
@ -283,10 +285,11 @@ struct CmdProfileInstall : InstallablesCommand, MixDefaultProfile
if (auto installable2 = std::dynamic_pointer_cast<InstallableFlake>(installable)) {
// FIXME: make build() return this?
auto [attrPath, resolvedRef, drv] = installable2->toDerivation();
element.source = ProfileElementSource{
element.source = ProfileElementSource {
installable2->flakeRef,
resolvedRef,
attrPath,
installable2->outputsSpec
};
}
@ -443,7 +446,7 @@ struct CmdProfileUpgrade : virtual SourceExprCommand, MixDefaultProfile, MixProf
getEvalState(),
FlakeRef(element.source->originalRef),
"",
DefaultOutputs(), // FIXME
element.source->outputs,
Strings{element.source->attrPath},
Strings{},
lockFlags);
@ -455,10 +458,11 @@ struct CmdProfileUpgrade : virtual SourceExprCommand, MixDefaultProfile, MixProf
printInfo("upgrading '%s' from flake '%s' to '%s'",
element.source->attrPath, element.source->resolvedRef, resolvedRef);
element.source = ProfileElementSource{
element.source = ProfileElementSource {
installable->flakeRef,
resolvedRef,
attrPath,
installable->outputsSpec
};
installables.push_back(installable);
@ -514,8 +518,8 @@ struct CmdProfileList : virtual EvalCommand, virtual StoreCommand, MixDefaultPro
for (size_t i = 0; i < manifest.elements.size(); ++i) {
auto & element(manifest.elements[i]);
logger->cout("%d %s %s %s", i,
element.source ? element.source->originalRef.to_string() + "#" + element.source->attrPath : "-",
element.source ? element.source->resolvedRef.to_string() + "#" + element.source->attrPath : "-",
element.source ? element.source->originalRef.to_string() + "#" + element.source->attrPath + printOutputsSpec(element.source->outputs) : "-",
element.source ? element.source->resolvedRef.to_string() + "#" + element.source->attrPath + printOutputsSpec(element.source->outputs) : "-",
concatStringsSep(" ", store->printStorePathSet(element.storePaths)));
}
}

19
tests/nix-profile.sh
View file

@ -101,3 +101,22 @@ printf Utrecht > $flake1Dir/who
nix profile install $flake1Dir
[[ $($TEST_HOME/.nix-profile/bin/hello) = "Hello Utrecht" ]]
[[ $(nix path-info --json $(realpath $TEST_HOME/.nix-profile/bin/hello) | jq -r .[].ca) =~ fixed:r:sha256: ]]
# Override the outputs.
nix profile remove 0 1
nix profile install "$flake1Dir^*"
[[ $($TEST_HOME/.nix-profile/bin/hello) = "Hello Utrecht" ]]
[ -e $TEST_HOME/.nix-profile/share/man ]
[ -e $TEST_HOME/.nix-profile/include ]
printf Nix > $flake1Dir/who
nix profile upgrade 0
[[ $($TEST_HOME/.nix-profile/bin/hello) = "Hello Nix" ]]
[ -e $TEST_HOME/.nix-profile/share/man ]
[ -e $TEST_HOME/.nix-profile/include ]
nix profile remove 0
nix profile install "$flake1Dir^man"
(! [ -e $TEST_HOME/.nix-profile/bin/hello ])
[ -e $TEST_HOME/.nix-profile/share/man ]
(! [ -e $TEST_HOME/.nix-profile/include ])