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

Make profile element names stable
This commit is contained in:
Eelco Dolstra 2024-01-12 16:59:36 +01:00 committed by GitHub
parent 0d55d660d5 72560f7bbe
commit 52f949bbf5
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 101 additions and 123 deletions
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4
doc/manual/rl-next/nix-profile-names.md
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@ -3,4 +3,6 @@ synopsis: "`nix profile` now allows referring to elements by human-readable name
prs: 8678
---
[`nix profile`](@docroot@/command-ref/new-cli/nix3-profile.md) now uses names to refer to installed packages when running [`list`](@docroot@/command-ref/new-cli/nix3-profile-list.md), [`remove`](@docroot@/command-ref/new-cli/nix3-profile-remove.md) or [`upgrade`](@docroot@/command-ref/new-cli/nix3-profile-upgrade.md) as opposed to indices. Indices are deprecated and will be removed in a future version.
[`nix profile`](@docroot@/command-ref/new-cli/nix3-profile.md) now uses names to refer to installed packages when running [`list`](@docroot@/command-ref/new-cli/nix3-profile-list.md), [`remove`](@docroot@/command-ref/new-cli/nix3-profile-remove.md) or [`upgrade`](@docroot@/command-ref/new-cli/nix3-profile-upgrade.md) as opposed to indices. Profile element names are generated when a package is installed and remain the same until the package is removed.
**Warning**: The `manifest.nix` file used to record the contents of profiles has changed. Nix will automatically upgrade profiles to the new version when you modify the profile. After that, the profile can no longer be used by older versions of Nix.

2
src/nix/profile-list.md
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@ -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
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@ -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());

33
tests/functional/nix-profile.sh
View File

@ -49,7 +49,7 @@ cp ./config.nix $flake1Dir/
nix-env -f ./user-envs.nix -i foo-1.0
nix profile list | grep -A2 'Name:.*foo' | grep 'Store paths:.*foo-1.0'
nix profile install $flake1Dir -L
nix profile list | grep -A4 'Index:.*1' | grep 'Locked flake URL:.*narHash'
nix profile list | grep -A4 'Name:.*flake1' | grep 'Locked flake URL:.*narHash'
[[ $($TEST_HOME/.nix-profile/bin/hello) = "Hello World" ]]
[ -e $TEST_HOME/.nix-profile/share/man ]
(! [ -e $TEST_HOME/.nix-profile/include ])
@ -58,9 +58,8 @@ nix profile history | grep "packages.$system.default: ∅ -> 1.0"
nix profile diff-closures | grep 'env-manifest.nix: ε → ∅'
# Test XDG Base Directories support
export NIX_CONFIG="use-xdg-base-directories = true"
nix profile remove 1
nix profile remove flake1 2>&1 | grep 'removed 1 packages'
nix profile install $flake1Dir
[[ $($TEST_HOME/.local/state/nix/profile/bin/hello) = "Hello World" ]]
unset NIX_CONFIG
@ -68,7 +67,7 @@ unset NIX_CONFIG
# Test upgrading a package.
printf NixOS > $flake1Dir/who
printf 2.0 > $flake1Dir/version
nix profile upgrade 1
nix profile upgrade flake1
[[ $($TEST_HOME/.nix-profile/bin/hello) = "Hello NixOS" ]]
nix profile history | grep "packages.$system.default: 1.0, 1.0-man -> 2.0, 2.0-man"
@ -81,7 +80,7 @@ nix profile rollback
# Test uninstall.
[ -e $TEST_HOME/.nix-profile/bin/foo ]
nix profile remove foo
nix profile remove foo 2>&1 | grep 'removed 1 packages'
(! [ -e $TEST_HOME/.nix-profile/bin/foo ])
nix profile history | grep 'foo: 1.0 -> ∅'
nix profile diff-closures | grep 'Version 3 -> 4'
@ -89,7 +88,7 @@ nix profile diff-closures | grep 'Version 3 -> 4'
# Test installing a non-flake package.
nix profile install --file ./simple.nix ''
[[ $(cat $TEST_HOME/.nix-profile/hello) = "Hello World!" ]]
nix profile remove 1
nix profile remove simple 2>&1 | grep 'removed 1 packages'
nix profile install $(nix-build --no-out-link ./simple.nix)
[[ $(cat $TEST_HOME/.nix-profile/hello) = "Hello World!" ]]
@ -97,8 +96,9 @@ nix profile install $(nix-build --no-out-link ./simple.nix)
mkdir $TEST_ROOT/simple-too
cp ./simple.nix ./config.nix simple.builder.sh $TEST_ROOT/simple-too
nix profile install --file $TEST_ROOT/simple-too/simple.nix ''
nix profile list | grep -A4 'Name:.*simple' | grep 'Name:.*simple1'
nix profile remove simple1
nix profile list | grep -A4 'Name:.*simple' | grep 'Name:.*simple-1'
nix profile remove simple 2>&1 | grep 'removed 1 packages'
nix profile remove simple-1 2>&1 | grep 'removed 1 packages'
# Test wipe-history.
nix profile wipe-history
@ -107,11 +107,11 @@ nix profile wipe-history
# Test upgrade to CA package.
printf true > $flake1Dir/ca.nix
printf 3.0 > $flake1Dir/version
nix profile upgrade 0
nix profile upgrade flake1
nix profile history | grep "packages.$system.default: 1.0, 1.0-man -> 3.0, 3.0-man"
# Test new install of CA package.
nix profile remove flake1
nix profile remove flake1 2>&1 | grep 'removed 1 packages'
printf 4.0 > $flake1Dir/version
printf Utrecht > $flake1Dir/who
nix profile install $flake1Dir
@ -132,14 +132,14 @@ nix profile upgrade flake1
[ -e $TEST_HOME/.nix-profile/share/man ]
[ -e $TEST_HOME/.nix-profile/include ]
nix profile remove flake1
nix profile remove flake1 2>&1 | grep 'removed 1 packages'
nix profile install "$flake1Dir^man"
(! [ -e $TEST_HOME/.nix-profile/bin/hello ])
[ -e $TEST_HOME/.nix-profile/share/man ]
(! [ -e $TEST_HOME/.nix-profile/include ])
# test priority
nix profile remove flake1
nix profile remove flake1 2>&1 | grep 'removed 1 packages'
# Make another flake.
flake2Dir=$TEST_ROOT/flake2
@ -193,3 +193,12 @@ nix profile install $flake2Dir --priority 0
clearProfiles
nix profile install $(nix build $flake1Dir --no-link --print-out-paths)
expect 1 nix profile install --impure --expr "(builtins.getFlake ''$flake2Dir'').packages.$system.default"
# Test upgrading from profile version 2.
clearProfiles
mkdir -p $TEST_ROOT/import-profile
outPath=$(nix build --no-link --print-out-paths $flake1Dir/flake.nix^out)
printf '{ "version": 2, "elements": [ { "active": true, "attrPath": "legacyPackages.x86_64-linux.hello", "originalUrl": "flake:nixpkgs", "outputs": null, "priority": 5, "storePaths": [ "%s" ], "url": "github:NixOS/nixpkgs/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" } ] }' "$outPath" > $TEST_ROOT/import-profile/manifest.json
nix build --profile $TEST_HOME/.nix-profile $(nix store add-path $TEST_ROOT/import-profile)
nix profile list | grep -A4 'Name:.*hello' | grep "Store paths:.*$outPath"
nix profile remove hello 2>&1 | grep 'removed 1 packages, kept 0 packages'