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Merge pull request #6522 from elikoga/master

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Add priority for nix profile install
This commit is contained in:
Théophane Hufschmitt 2022-05-16 17:13:43 +02:00 committed by GitHub
commit fdc97fc3f9
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GPG key ID: 4AEE18F83AFDEB23
7 changed files with 103 additions and 5 deletions
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7
src/libcmd/installables.cc
View file

@ -621,11 +621,15 @@ std::tuple<std::string, FlakeRef, InstallableValue::DerivationInfo> InstallableF
auto drvPath = attr->forceDerivation();
std::set<std::string> outputsToInstall;
std::optional<NixInt> priority;
if (auto aMeta = attr->maybeGetAttr(state->sMeta))
if (auto aMeta = attr->maybeGetAttr(state->sMeta)) {
if (auto aOutputsToInstall = aMeta->maybeGetAttr("outputsToInstall"))
for (auto & s : aOutputsToInstall->getListOfStrings())
outputsToInstall.insert(s);
if (auto aPriority = aMeta->maybeGetAttr("priority"))
priority = aPriority->getInt();
}
if (outputsToInstall.empty() || std::get_if<AllOutputs>(&outputsSpec)) {
outputsToInstall.clear();
@ -643,6 +647,7 @@ std::tuple<std::string, FlakeRef, InstallableValue::DerivationInfo> InstallableF
auto drvInfo = DerivationInfo {
.drvPath = std::move(drvPath),
.outputsToInstall = std::move(outputsToInstall),
.priority = priority,
};
return {attrPath, getLockedFlake()->flake.lockedRef, std::move(drvInfo)};

1
src/libcmd/installables.hh
View file

@ -142,6 +142,7 @@ struct InstallableValue : Installable
{
StorePath drvPath;
std::set<std::string> outputsToInstall;
std::optional<NixInt> priority;
};
virtual std::vector<DerivationInfo> toDerivations() = 0;

46
src/libexpr/eval-cache.cc
View file

@ -47,7 +47,7 @@ struct AttrDb
{
auto state(_state->lock());
Path cacheDir = getCacheDir() + "/nix/eval-cache-v3";
Path cacheDir = getCacheDir() + "/nix/eval-cache-v4";
createDirs(cacheDir);
Path dbPath = cacheDir + "/" + fingerprint.to_string(Base16, false) + ".sqlite";
@ -175,6 +175,24 @@ struct AttrDb
});
}
AttrId setInt(
AttrKey key,
int n)
{
return doSQLite([&]()
{
auto state(_state->lock());
state->insertAttribute.use()
(key.first)
(symbols[key.second])
(AttrType::Int)
(n).exec();
return state->db.getLastInsertedRowId();
});
}
AttrId setListOfStrings(
AttrKey key,
const std::vector<std::string> & l)
@ -287,6 +305,8 @@ struct AttrDb
}
case AttrType::Bool:
return {{rowId, queryAttribute.getInt(2) != 0}};
case AttrType::Int:
return {{rowId, int_t{queryAttribute.getInt(2)}}};
case AttrType::ListOfStrings:
return {{rowId, tokenizeString<std::vector<std::string>>(queryAttribute.getStr(2), "\t")}};
case AttrType::Missing:
@ -426,6 +446,8 @@ Value & AttrCursor::forceValue()
cachedValue = {root->db->setString(getKey(), v.path), string_t{v.path, {}}};
else if (v.type() == nBool)
cachedValue = {root->db->setBool(getKey(), v.boolean), v.boolean};
else if (v.type() == nInt)
cachedValue = {root->db->setInt(getKey(), v.integer), int_t{v.integer}};
else if (v.type() == nAttrs)
; // FIXME: do something?
else
@ -621,6 +643,28 @@ bool AttrCursor::getBool()
return v.boolean;
}
NixInt AttrCursor::getInt()
{
if (root->db) {
if (!cachedValue)
cachedValue = root->db->getAttr(getKey());
if (cachedValue && !std::get_if<placeholder_t>(&cachedValue->second)) {
if (auto i = std::get_if<int_t>(&cachedValue->second)) {
debug("using cached Integer attribute '%s'", getAttrPathStr());
return i->x;
} else
throw TypeError("'%s' is not an Integer", getAttrPathStr());
}
}
auto & v = forceValue();
if (v.type() != nInt)
throw TypeError("'%s' is not an Integer", getAttrPathStr());
return v.integer;
}
std::vector<std::string> AttrCursor::getListOfStrings()
{
if (root->db) {

5
src/libexpr/eval-cache.hh
View file

@ -45,12 +45,14 @@ enum AttrType {
Failed = 5,
Bool = 6,
ListOfStrings = 7,
Int = 8,
};
struct placeholder_t {};
struct missing_t {};
struct misc_t {};
struct failed_t {};
struct int_t { NixInt x; };
typedef uint64_t AttrId;
typedef std::pair<AttrId, Symbol> AttrKey;
typedef std::pair<std::string, NixStringContext> string_t;
@ -63,6 +65,7 @@ typedef std::variant<
misc_t,
failed_t,
bool,
int_t,
std::vector<std::string>
> AttrValue;
@ -116,6 +119,8 @@ public:
bool getBool();
NixInt getInt();
std::vector<std::string> getListOfStrings();
std::vector<Symbol> getAttrs();

3
src/libstore/builtins/buildenv.cc
View file

@ -93,8 +93,9 @@ static void createLinks(State & state, const Path & srcDir, const Path & dstDir,
auto prevPriority = state.priorities[dstFile];
if (prevPriority == priority)
throw Error(
"packages '%1%' and '%2%' have the same priority %3%; "
"files '%1%' and '%2%' have the same priority %3%; "
"use 'nix-env --set-flag priority NUMBER INSTALLED_PKGNAME' "
"or type 'nix profile install --help' if using 'nix profile' to find out how"
"to change the priority of one of the conflicting packages"
" (0 being the highest priority)",
srcFile, readLink(dstFile), priority);

28
src/nix/profile.cc
View file

@ -37,7 +37,7 @@ struct ProfileElement
StorePathSet storePaths;
std::optional<ProfileElementSource> source;
bool active = true;
// FIXME: priority
int priority = 5;
std::string describe() const
{
@ -116,6 +116,9 @@ struct ProfileManifest
for (auto & p : e["storePaths"])
element.storePaths.insert(state.store->parseStorePath((std::string) p));
element.active = e["active"];
if(e.contains("priority")) {
element.priority = e["priority"];
}
if (e.value(sUrl, "") != "") {
element.source = ProfileElementSource {
parseFlakeRef(e[sOriginalUrl]),
@ -153,6 +156,7 @@ struct ProfileManifest
nlohmann::json obj;
obj["storePaths"] = paths;
obj["active"] = element.active;
obj["priority"] = element.priority;
if (element.source) {
obj["originalUrl"] = element.source->originalRef.to_string();
obj["url"] = element.source->resolvedRef.to_string();
@ -177,7 +181,7 @@ struct ProfileManifest
for (auto & element : elements) {
for (auto & path : element.storePaths) {
if (element.active)
pkgs.emplace_back(store->printStorePath(path), true, 5);
pkgs.emplace_back(store->printStorePath(path), true, element.priority);
references.insert(path);
}
}
@ -259,6 +263,16 @@ builtPathsPerInstallable(
struct CmdProfileInstall : InstallablesCommand, MixDefaultProfile
{
std::optional<int> priority;
CmdProfileInstall() {
addFlag({
.longName = "priority",
.description = "The priority of the package to install.",
.labels = {"priority"},
.handler = {&priority},
});
};
std::string description() override
{
return "install a package into a profile";
@ -282,6 +296,8 @@ struct CmdProfileInstall : InstallablesCommand, MixDefaultProfile
for (auto & installable : installables) {
ProfileElement element;
if (auto installable2 = std::dynamic_pointer_cast<InstallableFlake>(installable)) {
// FIXME: make build() return this?
auto [attrPath, resolvedRef, drv] = installable2->toDerivation();
@ -291,8 +307,16 @@ struct CmdProfileInstall : InstallablesCommand, MixDefaultProfile
attrPath,
installable2->outputsSpec
};
if(drv.priority) {
element.priority = *drv.priority;
}
}
if(priority) { // if --priority was specified we want to override the priority of the installable
element.priority = *priority;
};
element.updateStorePaths(getEvalStore(), store, builtPaths[installable.get()]);
manifest.elements.push_back(std::move(element));

18
tests/nix-profile.sh
View file

@ -120,3 +120,21 @@ nix profile install "$flake1Dir^man"
(! [ -e $TEST_HOME/.nix-profile/bin/hello ])
[ -e $TEST_HOME/.nix-profile/share/man ]
(! [ -e $TEST_HOME/.nix-profile/include ])
# test priority
nix profile remove 0
# Make another flake.
flake2Dir=$TEST_ROOT/flake2
printf World > $flake1Dir/who
cp -r $flake1Dir $flake2Dir
printf World2 > $flake2Dir/who
nix profile install $flake1Dir
[[ $($TEST_HOME/.nix-profile/bin/hello) = "Hello World" ]]
nix profile install $flake2Dir --priority 100
[[ $($TEST_HOME/.nix-profile/bin/hello) = "Hello World" ]]
nix profile install $flake2Dir --priority 0
[[ $($TEST_HOME/.nix-profile/bin/hello) = "Hello World2" ]]
# nix profile install $flake1Dir --priority 100
# [[ $($TEST_HOME/.nix-profile/bin/hello) = "Hello World" ]]