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Merge pull request #9656 from edolstra/nix-profile-stable-names

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Make profile element names stable
This commit is contained in:
Eelco Dolstra 2024-01-12 16:59:36 +01:00 • committed by GitHub
commit 52f949bbf5
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6 changed files with 101 additions and 123 deletions
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2
src/nix/profile-list.md
View file

@ -7,14 +7,12 @@ R""(
```console
# nix profile list
Name: gdb
Index: 0
Flake attribute: legacyPackages.x86_64-linux.gdb
Original flake URL: flake:nixpkgs
Locked flake URL: github:NixOS/nixpkgs/7b38b03d76ab71bdc8dc325e3f6338d984cc35ca
Store paths: /nix/store/indzcw5wvlhx6vwk7k4iq29q15chvr3d-gdb-11.1
Name: blender-bin
Index: 1
Flake attribute: packages.x86_64-linux.default
Original flake URL: flake:blender-bin
Locked flake URL: github:edolstra/nix-warez/91f2ffee657bf834e4475865ae336e2379282d34?dir=blender

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

@ -8,13 +8,6 @@ R""(
# nix profile remove hello
```
* Remove a package by index
*(deprecated, will be removed in a future version)*:
```console
# nix profile remove 3
```
* Remove all packages:
```console

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

@ -15,13 +15,6 @@ R""(
# nix profile upgrade hello
```
* Upgrade a specific package by index
*(deprecated, will be removed in a future version)*:
```console
# nix profile upgrade 0
```
# Description
This command upgrades a previously installed package in a Nix profile,

171
src/nix/profile.cc
View file

@ -45,7 +45,6 @@ const int defaultPriority = 5;
struct ProfileElement
{
StorePathSet storePaths;
std::string name;
std::optional<ProfileElementSource> source;
bool active = true;
int priority = defaultPriority;
@ -82,11 +81,6 @@ struct ProfileElement
return showVersions(versions);
}
bool operator < (const ProfileElement & other) const
{
return std::tuple(identifier(), storePaths) < std::tuple(other.identifier(), other.storePaths);
}
void updateStorePaths(
ref<Store> evalStore,
ref<Store> store,
@ -109,7 +103,9 @@ struct ProfileElement
struct ProfileManifest
{
std::vector<ProfileElement> elements;
using ProfileElementName = std::string;
std::map<ProfileElementName, ProfileElement> elements;
ProfileManifest() { }
@ -119,8 +115,6 @@ struct ProfileManifest
if (pathExists(manifestPath)) {
auto json = nlohmann::json::parse(readFile(manifestPath));
/* Keep track of already found names to allow preventing duplicates. */
std::set<std::string> foundNames;
auto version = json.value("version", 0);
std::string sUrl;
@ -131,6 +125,7 @@ struct ProfileManifest
sOriginalUrl = "originalUri";
break;
case 2:
case 3:
sUrl = "url";
sOriginalUrl = "originalUrl";
break;
@ -138,7 +133,9 @@ struct ProfileManifest
throw Error("profile manifest '%s' has unsupported version %d", manifestPath, version);
}
for (auto & e : json["elements"]) {
auto elems = json["elements"];
for (auto & elem : elems.items()) {
auto & e = elem.value();
ProfileElement element;
for (auto & p : e["storePaths"])
element.storePaths.insert(state.store->parseStorePath((std::string) p));
@ -155,25 +152,14 @@ struct ProfileManifest
};
}
std::string nameCandidate = element.identifier();
if (e.contains("name")) {
nameCandidate = e["name"];
}
else if (element.source) {
auto url = parseURL(element.source->to_string());
auto name = getNameFromURL(url);
if (name)
nameCandidate = *name;
}
std::string name =
elems.is_object()
? elem.key()
: element.source
? getNameFromURL(parseURL(element.source->to_string())).value_or(element.identifier())
: element.identifier();
auto finalName = nameCandidate;
for (int i = 1; foundNames.contains(finalName); ++i) {
finalName = nameCandidate + std::to_string(i);
}
element.name = finalName;
foundNames.insert(element.name);
elements.emplace_back(std::move(element));
addElement(name, std::move(element));
}
}
@ -187,16 +173,34 @@ struct ProfileManifest
for (auto & drvInfo : drvInfos) {
ProfileElement element;
element.storePaths = {drvInfo.queryOutPath()};
element.name = element.identifier();
elements.emplace_back(std::move(element));
addElement(std::move(element));
}
}
}
void addElement(std::string_view nameCandidate, ProfileElement element)
{
std::string finalName(nameCandidate);
for (int i = 1; elements.contains(finalName); ++i)
finalName = nameCandidate + "-" + std::to_string(i);
elements.insert_or_assign(finalName, std::move(element));
}
void addElement(ProfileElement element)
{
auto name =
element.source
? getNameFromURL(parseURL(element.source->to_string()))
: std::nullopt;
auto name2 = name ? *name : element.identifier();
addElement(name2, std::move(element));
}
nlohmann::json toJSON(Store & store) const
{
auto array = nlohmann::json::array();
for (auto & element : elements) {
auto es = nlohmann::json::object();
for (auto & [name, element] : elements) {
auto paths = nlohmann::json::array();
for (auto & path : element.storePaths)
paths.push_back(store.printStorePath(path));
@ -210,11 +214,11 @@ struct ProfileManifest
obj["attrPath"] = element.source->attrPath;
obj["outputs"] = element.source->outputs;
}
array.push_back(obj);
es[name] = obj;
}
nlohmann::json json;
json["version"] = 2;
json["elements"] = array;
json["version"] = 3;
json["elements"] = es;
return json;
}
@ -225,7 +229,7 @@ struct ProfileManifest
StorePathSet references;
Packages pkgs;
for (auto & element : elements) {
for (auto & [name, element] : elements) {
for (auto & path : element.storePaths) {
if (element.active)
pkgs.emplace_back(store->printStorePath(path), true, element.priority);
@ -267,33 +271,27 @@ struct ProfileManifest
static void printDiff(const ProfileManifest & prev, const ProfileManifest & cur, std::string_view indent)
{
auto prevElems = prev.elements;
std::sort(prevElems.begin(), prevElems.end());
auto curElems = cur.elements;
std::sort(curElems.begin(), curElems.end());
auto i = prevElems.begin();
auto j = curElems.begin();
auto i = prev.elements.begin();
auto j = cur.elements.begin();
bool changes = false;
while (i != prevElems.end() || j != curElems.end()) {
if (j != curElems.end() && (i == prevElems.end() || i->identifier() > j->identifier())) {
logger->cout("%s%s: ∅ -> %s", indent, j->identifier(), j->versions());
while (i != prev.elements.end() || j != cur.elements.end()) {
if (j != cur.elements.end() && (i == prev.elements.end() || i->first > j->first)) {
logger->cout("%s%s: ∅ -> %s", indent, j->second.identifier(), j->second.versions());
changes = true;
++j;
}
else if (i != prevElems.end() && (j == curElems.end() || i->identifier() < j->identifier())) {
logger->cout("%s%s: %s -> ∅", indent, i->identifier(), i->versions());
else if (i != prev.elements.end() && (j == cur.elements.end() || i->first < j->first)) {
logger->cout("%s%s: %s -> ∅", indent, i->second.identifier(), i->second.versions());
changes = true;
++i;
}
else {
auto v1 = i->versions();
auto v2 = j->versions();
auto v1 = i->second.versions();
auto v2 = j->second.versions();
if (v1 != v2) {
logger->cout("%s%s: %s -> %s", indent, i->identifier(), v1, v2);
logger->cout("%s%s: %s -> %s", indent, i->second.identifier(), v1, v2);
changes = true;
}
++i;
@ -392,7 +390,7 @@ struct CmdProfileInstall : InstallablesCommand, MixDefaultProfile
element.updateStorePaths(getEvalStore(), store, res);
manifest.elements.push_back(std::move(element));
manifest.addElement(std::move(element));
}
try {
@ -402,7 +400,7 @@ struct CmdProfileInstall : InstallablesCommand, MixDefaultProfile
// See https://github.com/NixOS/nix/compare/3efa476c5439f8f6c1968a6ba20a31d1239c2f04..1fe5d172ece51a619e879c4b86f603d9495cc102
auto findRefByFilePath = [&]<typename Iterator>(Iterator begin, Iterator end) {
for (auto it = begin; it != end; it++) {
auto profileElement = *it;
auto & profileElement = it->second;
for (auto & storePath : profileElement.storePaths) {
if (conflictError.fileA.starts_with(store->printStorePath(storePath))) {
return std::pair(conflictError.fileA, profileElement.toInstallables(*store));
@ -470,43 +468,35 @@ public:
std::string pattern;
std::regex reg;
};
typedef std::variant<size_t, Path, RegexPattern> Matcher;
typedef std::variant<Path, RegexPattern> Matcher;
std::vector<Matcher> getMatchers(ref<Store> store)
{
std::vector<Matcher> res;
auto anyIndexMatchers = false;
for (auto & s : _matchers) {
if (auto n = string2Int<size_t>(s)) {
res.push_back(*n);
anyIndexMatchers = true;
}
if (auto n = string2Int<size_t>(s))
throw Error("'nix profile' no longer supports indices ('%d')", *n);
else if (store->isStorePath(s))
res.push_back(s);
else
res.push_back(RegexPattern{s,std::regex(s, std::regex::extended | std::regex::icase)});
}
if (anyIndexMatchers) {
warn("Indices are deprecated and will be removed in a future version!\n"
" Refer to packages by their `Name` as printed by `nix profile list`.\n"
" See https://github.com/NixOS/nix/issues/9171 for more information.");
}
return res;
}
bool matches(const Store & store, const ProfileElement & element, size_t pos, const std::vector<Matcher> & matchers)
bool matches(
const Store & store,
const std::string & name,
const ProfileElement & element,
const std::vector<Matcher> & matchers)
{
for (auto & matcher : matchers) {
if (auto n = std::get_if<size_t>(&matcher)) {
if (*n == pos) return true;
} else if (auto path = std::get_if<Path>(&matcher)) {
if (auto path = std::get_if<Path>(&matcher)) {
if (element.storePaths.count(store.parseStorePath(*path))) return true;
} else if (auto regex = std::get_if<RegexPattern>(&matcher)) {
if (std::regex_match(element.name, regex->reg))
if (std::regex_match(name, regex->reg))
return true;
}
}
@ -537,10 +527,9 @@ struct CmdProfileRemove : virtual EvalCommand, MixDefaultProfile, MixProfileElem
ProfileManifest newManifest;
for (size_t i = 0; i < oldManifest.elements.size(); ++i) {
auto & element(oldManifest.elements[i]);
if (!matches(*store, element, i, matchers)) {
newManifest.elements.push_back(std::move(element));
for (auto & [name, element] : oldManifest.elements) {
if (!matches(*store, name, element, matchers)) {
newManifest.elements.insert_or_assign(name, std::move(element));
} else {
notice("removing '%s'", element.identifier());
}
@ -553,11 +542,9 @@ struct CmdProfileRemove : virtual EvalCommand, MixDefaultProfile, MixProfileElem
if (removedCount == 0) {
for (auto matcher: matchers) {
if (const size_t * index = std::get_if<size_t>(&matcher)){
warn("'%d' is not a valid index", *index);
} else if (const Path * path = std::get_if<Path>(&matcher)){
if (const Path * path = std::get_if<Path>(&matcher)) {
warn("'%s' does not match any paths", *path);
} else if (const RegexPattern * regex = std::get_if<RegexPattern>(&matcher)){
} else if (const RegexPattern * regex = std::get_if<RegexPattern>(&matcher)) {
warn("'%s' does not match any packages", regex->pattern);
}
}
@ -588,14 +575,13 @@ struct CmdProfileUpgrade : virtual SourceExprCommand, MixDefaultProfile, MixProf
auto matchers = getMatchers(store);
Installables installables;
std::vector<size_t> indices;
std::vector<ProfileElement *> elems;
auto matchedCount = 0;
auto upgradedCount = 0;
for (size_t i = 0; i < manifest.elements.size(); ++i) {
auto & element(manifest.elements[i]);
if (!matches(*store, element, i, matchers)) {
for (auto & [name, element] : manifest.elements) {
if (!matches(*store, name, element, matchers)) {
continue;
}
@ -651,17 +637,15 @@ struct CmdProfileUpgrade : virtual SourceExprCommand, MixDefaultProfile, MixProf
};
installables.push_back(installable);
indices.push_back(i);
elems.push_back(&element);
}
if (upgradedCount == 0) {
if (matchedCount == 0) {
for (auto & matcher : matchers) {
if (const size_t * index = std::get_if<size_t>(&matcher)){
warn("'%d' is not a valid index", *index);
} else if (const Path * path = std::get_if<Path>(&matcher)){
if (const Path * path = std::get_if<Path>(&matcher)) {
warn("'%s' does not match any paths", *path);
} else if (const RegexPattern * regex = std::get_if<RegexPattern>(&matcher)){
} else if (const RegexPattern * regex = std::get_if<RegexPattern>(&matcher)) {
warn("'%s' does not match any packages", regex->pattern);
}
}
@ -677,7 +661,7 @@ struct CmdProfileUpgrade : virtual SourceExprCommand, MixDefaultProfile, MixProf
for (size_t i = 0; i < installables.size(); ++i) {
auto & installable = installables.at(i);
auto & element = manifest.elements[indices.at(i)];
auto & element = *elems.at(i);
element.updateStorePaths(
getEvalStore(),
store,
@ -709,13 +693,12 @@ struct CmdProfileList : virtual EvalCommand, virtual StoreCommand, MixDefaultPro
if (json) {
std::cout << manifest.toJSON(*store).dump() << "\n";
} else {
for (size_t i = 0; i < manifest.elements.size(); ++i) {
auto & element(manifest.elements[i]);
for (const auto & [i, e] : enumerate(manifest.elements)) {
auto & [name, element] = e;
if (i) logger->cout("");
logger->cout("Name: " ANSI_BOLD "%s" ANSI_NORMAL "%s",
element.name,
name,
element.active ? "" : " " ANSI_RED "(inactive)" ANSI_NORMAL);
logger->cout("Index: %s", i);
if (element.source) {
logger->cout("Flake attribute: %s%s", element.source->attrPath, element.source->outputs.to_string());
logger->cout("Original flake URL: %s", element.source->originalRef.to_string());