wroclaw-git-backups/nix
1
0
Fork 0
mirror of https://github.com/NixOS/nix synced 2025-07-06 21:41:48 +02:00
Code Activity

Merge remote-tracking branch 'upstream/master' into indexed-store-path-outputs

Browse source
This commit is contained in:
John Ericson 2022-04-19 15:14:06 +00:00
commit 41e755bee4
40 changed files with 286 additions and 159 deletions
Download patch file Download diff file Expand all files Collapse all files

7
src/libcmd/command.hh
View file

@ -85,11 +85,12 @@ struct SourceExprCommand : virtual Args, MixFlakeOptions
{
std::optional<Path> file;
std::optional<std::string> expr;
bool readOnlyMode = false;
// FIXME: move this; not all commands (e.g. 'nix run') use it.
OperateOn operateOn = OperateOn::Output;
SourceExprCommand();
SourceExprCommand(bool supportReadOnlyMode = false);
std::vector<std::shared_ptr<Installable>> parseInstallables(
ref<Store> store, std::vector<std::string> ss);
@ -128,13 +129,13 @@ struct InstallableCommand : virtual Args, SourceExprCommand
{
std::shared_ptr<Installable> installable;
InstallableCommand();
InstallableCommand(bool supportReadOnlyMode = false);
void prepare() override;
std::optional<FlakeRef> getFlakeRefForCompletion() override
{
return parseFlakeRef(_installable, absPath("."));
return parseFlakeRefWithFragment(_installable, absPath(".")).first;
}
private:

4
src/libexpr/common-eval-args.cc → src/libcmd/common-eval-args.cc
View file

@ -7,6 +7,7 @@
#include "registry.hh"
#include "flake/flakeref.hh"
#include "store-api.hh"
#include "command.hh"
namespace nix {
@ -59,6 +60,9 @@ MixEvalArgs::MixEvalArgs()
fetchers::Attrs extraAttrs;
if (to.subdir != "") extraAttrs["dir"] = to.subdir;
fetchers::overrideRegistry(from.input, to.input, extraAttrs);
}},
.completer = {[&](size_t, std::string_view prefix) {
completeFlakeRef(openStore(), prefix);
}}
});

0
src/libexpr/common-eval-args.hh → src/libcmd/common-eval-args.hh
View file

169
src/libcmd/installables.cc
View file

@ -1,4 +1,6 @@
#include "globals.hh"
#include "installables.hh"
#include "util.hh"
#include "command.hh"
#include "attr-path.hh"
#include "common-eval-args.hh"
@ -99,6 +101,14 @@ MixFlakeOptions::MixFlakeOptions()
lockFlags.inputOverrides.insert_or_assign(
flake::parseInputPath(inputPath),
parseFlakeRef(flakeRef, absPath("."), true));
}},
.completer = {[&](size_t n, std::string_view prefix) {
if (n == 0) {
if (auto flakeRef = getFlakeRefForCompletion())
completeFlakeInputPath(getEvalState(), *flakeRef, prefix);
} else if (n == 1) {
completeFlakeRef(getEvalState()->store, prefix);
}
}}
});
@ -129,7 +139,7 @@ MixFlakeOptions::MixFlakeOptions()
});
}
SourceExprCommand::SourceExprCommand()
SourceExprCommand::SourceExprCommand(bool supportReadOnlyMode)
{
addFlag({
.longName = "file",
@ -157,6 +167,17 @@ SourceExprCommand::SourceExprCommand()
.category = installablesCategory,
.handler = {&operateOn, OperateOn::Derivation},
});
if (supportReadOnlyMode) {
addFlag({
.longName = "read-only",
.description =
"Do not instantiate each evaluated derivation. "
"This improves performance, but can cause errors when accessing "
"store paths of derivations during evaluation.",
.handler = {&readOnlyMode, true},
});
}
}
Strings SourceExprCommand::getDefaultFlakeAttrPaths()
@ -182,6 +203,8 @@ Strings SourceExprCommand::getDefaultFlakeAttrPathPrefixes()
void SourceExprCommand::completeInstallable(std::string_view prefix)
{
if (file) {
completionType = ctAttrs;
evalSettings.pureEval = false;
auto state = getEvalState();
Expr *e = state->parseExprFromFile(
@ -210,13 +233,14 @@ void SourceExprCommand::completeInstallable(std::string_view prefix)
Value v2;
state->autoCallFunction(*autoArgs, v1, v2);
completionType = ctAttrs;
if (v2.type() == nAttrs) {
for (auto & i : *v2.attrs) {
std::string name = i.name;
if (name.find(searchWord) == 0) {
completions->add(i.name);
if (prefix_ == "")
completions->add(name);
else
completions->add(prefix_ + "." + name);
}
}
}
@ -244,10 +268,11 @@ void completeFlakeRefWithFragment(
if (hash == std::string::npos) {
completeFlakeRef(evalState->store, prefix);
} else {
completionType = ctAttrs;
auto fragment = prefix.substr(hash + 1);
auto flakeRefS = std::string(prefix.substr(0, hash));
// FIXME: do tilde expansion.
auto flakeRef = parseFlakeRef(flakeRefS, absPath("."));
auto flakeRef = parseFlakeRef(expandTilde(flakeRefS), absPath("."));
auto evalCache = openEvalCache(*evalState,
std::make_shared<flake::LockedFlake>(lockFlake(*evalState, flakeRef, lockFlags)));
@ -259,8 +284,6 @@ void completeFlakeRefWithFragment(
flake. */
attrPathPrefixes.push_back("");
completionType = ctAttrs;
for (auto & attrPathPrefixS : attrPathPrefixes) {
auto attrPathPrefix = parseAttrPath(*evalState, attrPathPrefixS);
auto attrPathS = attrPathPrefixS + std::string(fragment);
@ -334,16 +357,16 @@ DerivedPath Installable::toDerivedPath()
return std::move(buildables[0]);
}
std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>>
std::vector<ref<eval_cache::AttrCursor>>
Installable::getCursors(EvalState & state)
{
auto evalCache =
std::make_shared<nix::eval_cache::EvalCache>(std::nullopt, state,
[&]() { return toValue(state).first; });
return {{evalCache->getRoot(), ""}};
return {evalCache->getRoot()};
}
std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>
ref<eval_cache::AttrCursor>
Installable::getCursor(EvalState & state)
{
auto cursors = getCursors(state);
@ -586,43 +609,21 @@ InstallableFlake::InstallableFlake(
std::tuple<std::string, FlakeRef, InstallableValue::DerivationInfo> InstallableFlake::toDerivation()
{
auto lockedFlake = getLockedFlake();
auto attr = getCursor(*state);
auto cache = openEvalCache(*state, lockedFlake);
auto root = cache->getRoot();
auto attrPath = attr->getAttrPathStr();
Suggestions suggestions;
if (!attr->isDerivation())
throw Error("flake output attribute '%s' is not a derivation", attrPath);
for (auto & attrPath : getActualAttrPaths()) {
debug("trying flake output attribute '%s'", attrPath);
auto drvPath = attr->forceDerivation();
auto attrOrSuggestions = root->findAlongAttrPath(
parseAttrPath(*state, attrPath),
true
);
auto drvInfo = DerivationInfo {
std::move(drvPath),
attr->getAttr(state->sOutputName)->getString()
};
if (!attrOrSuggestions) {
suggestions += attrOrSuggestions.getSuggestions();
continue;
}
auto attr = *attrOrSuggestions;
if (!attr->isDerivation())
throw Error("flake output attribute '%s' is not a derivation", attrPath);
auto drvPath = attr->forceDerivation();
auto drvInfo = DerivationInfo {
std::move(drvPath),
attr->getAttr(state->sOutputName)->getString()
};
return {attrPath, lockedFlake->flake.lockedRef, std::move(drvInfo)};
}
throw Error(suggestions, "flake '%s' does not provide attribute %s",
flakeRef, showAttrPaths(getActualAttrPaths()));
return {attrPath, getLockedFlake()->flake.lockedRef, std::move(drvInfo)};
}
std::vector<InstallableValue::DerivationInfo> InstallableFlake::toDerivations()
@ -634,33 +635,10 @@ std::vector<InstallableValue::DerivationInfo> InstallableFlake::toDerivations()
std::pair<Value *, Pos> InstallableFlake::toValue(EvalState & state)
{
auto lockedFlake = getLockedFlake();
auto vOutputs = getFlakeOutputs(state, *lockedFlake);
auto emptyArgs = state.allocBindings(0);
Suggestions suggestions;
for (auto & attrPath : getActualAttrPaths()) {
try {
auto [v, pos] = findAlongAttrPath(state, attrPath, *emptyArgs, *vOutputs);
state.forceValue(*v, pos);
return {v, pos};
} catch (AttrPathNotFound & e) {
suggestions += e.info().suggestions;
}
}
throw Error(
suggestions,
"flake '%s' does not provide attribute %s",
flakeRef,
showAttrPaths(getActualAttrPaths())
);
return {&getCursor(state)->forceValue(), noPos};
}
std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>>
std::vector<ref<eval_cache::AttrCursor>>
InstallableFlake::getCursors(EvalState & state)
{
auto evalCache = openEvalCache(state,
@ -668,21 +646,55 @@ InstallableFlake::getCursors(EvalState & state)
auto root = evalCache->getRoot();
std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>> res;
std::vector<ref<eval_cache::AttrCursor>> res;
for (auto & attrPath : getActualAttrPaths()) {
auto attr = root->findAlongAttrPath(parseAttrPath(state, attrPath));
if (attr) res.push_back({*attr, attrPath});
if (attr) res.push_back(ref(*attr));
}
return res;
}
ref<eval_cache::AttrCursor> InstallableFlake::getCursor(EvalState & state)
{
auto lockedFlake = getLockedFlake();
auto cache = openEvalCache(state, lockedFlake);
auto root = cache->getRoot();
Suggestions suggestions;
auto attrPaths = getActualAttrPaths();
for (auto & attrPath : attrPaths) {
debug("trying flake output attribute '%s'", attrPath);
auto attrOrSuggestions = root->findAlongAttrPath(
parseAttrPath(state, attrPath),
true
);
if (!attrOrSuggestions) {
suggestions += attrOrSuggestions.getSuggestions();
continue;
}
return *attrOrSuggestions;
}
throw Error(
suggestions,
"flake '%s' does not provide attribute %s",
flakeRef,
showAttrPaths(attrPaths));
}
std::shared_ptr<flake::LockedFlake> InstallableFlake::getLockedFlake() const
{
flake::LockFlags lockFlagsApplyConfig = lockFlags;
lockFlagsApplyConfig.applyNixConfig = true;
if (!_lockedFlake) {
flake::LockFlags lockFlagsApplyConfig = lockFlags;
lockFlagsApplyConfig.applyNixConfig = true;
_lockedFlake = std::make_shared<flake::LockedFlake>(lockFlake(*state, flakeRef, lockFlagsApplyConfig));
}
return _lockedFlake;
@ -707,6 +719,10 @@ std::vector<std::shared_ptr<Installable>> SourceExprCommand::parseInstallables(
{
std::vector<std::shared_ptr<Installable>> result;
if (readOnlyMode) {
settings.readOnlyMode = true;
}
if (file || expr) {
if (file && expr)
throw UsageError("'--file' and '--expr' are exclusive");
@ -988,7 +1004,7 @@ InstallablesCommand::InstallablesCommand()
void InstallablesCommand::prepare()
{
if (_installables.empty() && useDefaultInstallables())
// FIXME: commands like "nix install" should not have a
// FIXME: commands like "nix profile install" should not have a
// default, probably.
_installables.push_back(".");
installables = parseInstallables(getStore(), _installables);
@ -998,13 +1014,14 @@ std::optional<FlakeRef> InstallablesCommand::getFlakeRefForCompletion()
{
if (_installables.empty()) {
if (useDefaultInstallables())
return parseFlakeRef(".", absPath("."));
return parseFlakeRefWithFragment(".", absPath(".")).first;
return {};
}
return parseFlakeRef(_installables.front(), absPath("."));
return parseFlakeRefWithFragment(_installables.front(), absPath(".")).first;
}
InstallableCommand::InstallableCommand()
InstallableCommand::InstallableCommand(bool supportReadOnlyMode)
: SourceExprCommand(supportReadOnlyMode)
{
expectArgs({
.label = "installable",

12
src/libcmd/installables.hh
View file

@ -80,10 +80,10 @@ struct Installable
return {};
}
virtual std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>>
virtual std::vector<ref<eval_cache::AttrCursor>>
getCursors(EvalState & state);
std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>
virtual ref<eval_cache::AttrCursor>
getCursor(EvalState & state);
virtual FlakeRef nixpkgsFlakeRef() const
@ -180,9 +180,15 @@ struct InstallableFlake : InstallableValue
std::pair<Value *, Pos> toValue(EvalState & state) override;
std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>>
/* Get a cursor to every attrpath in getActualAttrPaths() that
exists. */
std::vector<ref<eval_cache::AttrCursor>>
getCursors(EvalState & state) override;
/* Get a cursor to the first attrpath in getActualAttrPaths() that
exists, or throw an exception with suggestions if none exists. */
ref<eval_cache::AttrCursor> getCursor(EvalState & state) override;
std::shared_ptr<flake::LockedFlake> getLockedFlake() const;
FlakeRef nixpkgsFlakeRef() const override;

4
src/libexpr/eval-cache.cc
View file

@ -306,9 +306,9 @@ Value * EvalCache::getRootValue()
return *value;
}
std::shared_ptr<AttrCursor> EvalCache::getRoot()
ref<AttrCursor> EvalCache::getRoot()
{
return std::make_shared<AttrCursor>(ref(shared_from_this()), std::nullopt);
return make_ref<AttrCursor>(ref(shared_from_this()), std::nullopt);
}
AttrCursor::AttrCursor(

4
src/libexpr/eval-cache.hh
View file

@ -33,7 +33,7 @@ public:
EvalState & state,
RootLoader rootLoader);
std::shared_ptr<AttrCursor> getRoot();
ref<AttrCursor> getRoot();
};
enum AttrType {
@ -104,6 +104,8 @@ public:
ref<AttrCursor> getAttr(std::string_view name);
/* Get an attribute along a chain of attrsets. Note that this does
not auto-call functors or functions. */
OrSuggestions<ref<AttrCursor>> findAlongAttrPath(const std::vector<Symbol> & attrPath, bool force = false);
std::string getString();

15
src/libfetchers/fetchers.cc
View file

@ -238,9 +238,18 @@ std::optional<std::string> Input::getRef() const
std::optional<Hash> Input::getRev() const
{
if (auto s = maybeGetStrAttr(attrs, "rev"))
return Hash::parseAny(*s, htSHA1);
return {};
std::optional<Hash> hash = {};
if (auto s = maybeGetStrAttr(attrs, "rev")) {
try {
hash = Hash::parseAnyPrefixed(*s);
} catch (BadHash &e) {
// Default to sha1 for backwards compatibility with existing flakes
hash = Hash::parseAny(*s, htSHA1);
}
}
return hash;
}
std::optional<uint64_t> Input::getRevCount() const

12
src/libfetchers/git.cc
View file

@ -28,9 +28,7 @@ static std::string readHead(const Path & path)
static bool isNotDotGitDirectory(const Path & path)
{
static const std::regex gitDirRegex("^(?:.*/)?\\.git$");
return not std::regex_match(path, gitDirRegex);
return baseNameOf(path) != ".git";
}
struct GitInputScheme : InputScheme
@ -189,8 +187,16 @@ struct GitInputScheme : InputScheme
if (submodules) cacheType += "-submodules";
if (allRefs) cacheType += "-all-refs";
auto checkHashType = [&](const std::optional<Hash> & hash)
{
if (hash.has_value() && !(hash->type == htSHA1 || hash->type == htSHA256))
throw Error("Hash '%s' is not supported by Git. Supported types are sha1 and sha256.", hash->to_string(Base16, true));
};
auto getLockedAttrs = [&]()
{
checkHashType(input.getRev());
return Attrs({
{"type", cacheType},
{"name", name},

17
src/libfetchers/mercurial.cc
View file

@ -178,9 +178,11 @@ struct MercurialInputScheme : InputScheme
auto files = tokenizeString<std::set<std::string>>(
runHg({ "status", "-R", actualUrl, "--clean", "--modified", "--added", "--no-status", "--print0" }), "\0"s);
Path actualPath(absPath(actualUrl));
PathFilter filter = [&](const Path & p) -> bool {
assert(hasPrefix(p, actualUrl));
std::string file(p, actualUrl.size() + 1);
assert(hasPrefix(p, actualPath));
std::string file(p, actualPath.size() + 1);
auto st = lstat(p);
@ -193,7 +195,7 @@ struct MercurialInputScheme : InputScheme
return files.count(file);
};
auto storePath = store->addToStore(input.getName(), actualUrl, FileIngestionMethod::Recursive, htSHA256, filter);
auto storePath = store->addToStore(input.getName(), actualPath, FileIngestionMethod::Recursive, htSHA256, filter);
return {std::move(storePath), input};
}
@ -201,8 +203,17 @@ struct MercurialInputScheme : InputScheme
if (!input.getRef()) input.attrs.insert_or_assign("ref", "default");
auto checkHashType = [&](const std::optional<Hash> & hash)
{
if (hash.has_value() && hash->type != htSHA1)
throw Error("Hash '%s' is not supported by Mercurial. Only sha1 is supported.", hash->to_string(Base16, true));
};
auto getLockedAttrs = [&]()
{
checkHashType(input.getRev());
return Attrs({
{"type", "hg"},
{"name", name},

2
src/libstore/build-result.hh
View file

@ -31,6 +31,8 @@ struct BuildResult
ResolvesToAlreadyValid,
NoSubstituters,
} status = MiscFailure;
// FIXME: include entire ErrorInfo object.
std::string errorMsg;
std::string toString() const {

3
src/libstore/build/derivation-goal.cc
View file

@ -1371,8 +1371,7 @@ void DerivationGoal::done(
{
buildResult.status = status;
if (ex)
// FIXME: strip: "error: "
buildResult.errorMsg = ex->what();
buildResult.errorMsg = fmt("%s", normaltxt(ex->info().msg));
if (buildResult.status == BuildResult::TimedOut)
worker.timedOut = true;
if (buildResult.status == BuildResult::PermanentFailure)

3
src/libstore/build/local-derivation-goal.cc
View file

@ -704,6 +704,9 @@ void LocalDerivationGoal::startBuilder()
/* Run the builder. */
printMsg(lvlChatty, "executing builder '%1%'", drv->builder);
printMsg(lvlChatty, "using builder args '%1%'", concatStringsSep(" ", drv->args));
for (auto & i : drv->env)
printMsg(lvlVomit, "setting builder env variable '%1%'='%2%'", i.first, i.second);
/* Create the log file. */
Path logFile = openLogFile();

4
src/libstore/filetransfer.hh
View file

@ -31,7 +31,7 @@ struct FileTransferSettings : Config
R"(
The timeout (in seconds) for establishing connections in the
binary cache substituter. It corresponds to `curl`’s
`--connect-timeout` option.
`--connect-timeout` option. A value of 0 means no limit.
)"};
Setting<unsigned long> stalledDownloadTimeout{
@ -123,8 +123,6 @@ public:
template<typename... Args>
FileTransferError(FileTransfer::Error error, std::optional<std::string> response, const Args & ... args);
virtual const char* sname() const override { return "FileTransferError"; }
};
bool isUri(std::string_view s);

1
src/libstore/sqlite.cc
View file

@ -215,7 +215,6 @@ void handleSQLiteBusy(const SQLiteBusy & e)
if (now > lastWarned + 10) {
lastWarned = now;
logWarning({
.name = "Sqlite busy",
.msg = hintfmt(e.what())
});
}

36
src/libutil/args.cc
View file

@ -127,11 +127,11 @@ bool Args::processFlag(Strings::iterator & pos, Strings::iterator end)
if (flag.handler.arity == ArityAny) break;
throw UsageError("flag '%s' requires %d argument(s)", name, flag.handler.arity);
}
if (flag.completer)
if (auto prefix = needsCompletion(*pos)) {
anyCompleted = true;
if (auto prefix = needsCompletion(*pos)) {
anyCompleted = true;
if (flag.completer)
flag.completer(n, *prefix);
}
}
args.push_back(*pos++);
}
if (!anyCompleted)
@ -146,6 +146,7 @@ bool Args::processFlag(Strings::iterator & pos, Strings::iterator end)
&& hasPrefix(name, std::string(*prefix, 2)))
completions->add("--" + name, flag->description);
}
return false;
}
auto i = longFlags.find(std::string(*pos, 2));
if (i == longFlags.end()) return false;
@ -187,10 +188,12 @@ bool Args::processArgs(const Strings & args, bool finish)
{
std::vector<std::string> ss;
for (const auto &[n, s] : enumerate(args)) {
ss.push_back(s);
if (exp.completer)
if (auto prefix = needsCompletion(s))
if (auto prefix = needsCompletion(s)) {
ss.push_back(*prefix);
if (exp.completer)
exp.completer(n, *prefix);
} else
ss.push_back(s);
}
exp.handler.fun(ss);
expectedArgs.pop_front();
@ -279,21 +282,22 @@ static void _completePath(std::string_view prefix, bool onlyDirs)
{
completionType = ctFilenames;
glob_t globbuf;
int flags = GLOB_NOESCAPE | GLOB_TILDE;
int flags = GLOB_NOESCAPE;
#ifdef GLOB_ONLYDIR
if (onlyDirs)
flags |= GLOB_ONLYDIR;
#endif
if (glob((std::string(prefix) + "*").c_str(), flags, nullptr, &globbuf) == 0) {
// using expandTilde here instead of GLOB_TILDE(_CHECK) so that ~<Tab> expands to /home/user/
if (glob((expandTilde(prefix) + "*").c_str(), flags, nullptr, &globbuf) == 0) {
for (size_t i = 0; i < globbuf.gl_pathc; ++i) {
if (onlyDirs) {
auto st = lstat(globbuf.gl_pathv[i]);
auto st = stat(globbuf.gl_pathv[i]);
if (!S_ISDIR(st.st_mode)) continue;
}
completions->add(globbuf.gl_pathv[i]);
}
globfree(&globbuf);
}
globfree(&globbuf);
}
void completePath(size_t, std::string_view prefix)
@ -322,11 +326,6 @@ MultiCommand::MultiCommand(const Commands & commands_)
.optional = true,
.handler = {[=](std::string s) {
assert(!command);
if (auto prefix = needsCompletion(s)) {
for (auto & [name, command] : commands)
if (hasPrefix(name, *prefix))
completions->add(name);
}
auto i = commands.find(s);
if (i == commands.end()) {
std::set<std::string> commandNames;
@ -337,6 +336,11 @@ MultiCommand::MultiCommand(const Commands & commands_)
}
command = {s, i->second()};
command->second->parent = this;
}},
.completer = {[&](size_t, std::string_view prefix) {
for (auto & [name, command] : commands)
if (hasPrefix(name, prefix))
completions->add(name);
}}
});

3
src/libutil/error.cc
View file

@ -21,12 +21,9 @@ const std::string & BaseError::calcWhat() const
if (what_.has_value())
return *what_;
else {
err.name = sname();
std::ostringstream oss;
showErrorInfo(oss, err, loggerSettings.showTrace);
what_ = oss.str();
return *what_;
}
}

6
src/libutil/error.hh
View file

@ -109,7 +109,6 @@ struct Trace {
struct ErrorInfo {
Verbosity level;
std::string name; // FIXME: rename
hintformat msg;
std::optional<ErrPos> errPos;
std::list<Trace> traces;
@ -162,8 +161,6 @@ public:
: err(e)
{ }
virtual const char* sname() const { return "BaseError"; }
#ifdef EXCEPTION_NEEDS_THROW_SPEC
~BaseError() throw () { };
const char * what() const throw () { return calcWhat().c_str(); }
@ -190,7 +187,6 @@ public:
{ \
public: \
using superClass::superClass; \
virtual const char* sname() const override { return #newClass; } \
}
MakeError(Error, BaseError);
@ -210,8 +206,6 @@ public:
auto hf = hintfmt(args...);
err.msg = hintfmt("%1%: %2%", normaltxt(hf.str()), strerror(errNo));
}
virtual const char* sname() const override { return "SysError"; }
};
}

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

@ -50,10 +50,6 @@ public:
ExperimentalFeature missingFeature;
MissingExperimentalFeature(ExperimentalFeature);
virtual const char * sname() const override
{
return "MissingExperimentalFeature";
}
};
}

2
src/libutil/hash.cc
View file

@ -155,7 +155,7 @@ static std::pair<std::optional<HashType>, bool> getParsedTypeAndSRI(std::string_
{
bool isSRI = false;
// Parse the has type before the separater, if there was one.
// Parse the hash type before the separator, if there was one.
std::optional<HashType> optParsedType;
{
auto hashRaw = splitPrefixTo(rest, ':');

2
src/libutil/hash.hh
View file

@ -93,13 +93,11 @@ public:
std::string gitRev() const
{
assert(type == htSHA1);
return to_string(Base16, false);
}
std::string gitShortRev() const
{
assert(type == htSHA1);
return std::string(to_string(Base16, false), 0, 7);
}

5
src/libutil/serialise.cc
View file

@ -357,7 +357,7 @@ Sink & operator << (Sink & sink, const Error & ex)
sink
<< "Error"
<< info.level
<< info.name
<< "Error" // removed
<< info.msg.str()
<< 0 // FIXME: info.errPos
<< info.traces.size();
@ -426,11 +426,10 @@ Error readError(Source & source)
auto type = readString(source);
assert(type == "Error");
auto level = (Verbosity) readInt(source);
auto name = readString(source);
auto name = readString(source); // removed
auto msg = readString(source);
ErrorInfo info {
.level = level,
.name = name,
.msg = hintformat(std::move(format("%s") % msg)),
};
auto havePos = readNum<size_t>(source);

4
src/libutil/tests/url.cc
View file

@ -178,7 +178,7 @@ namespace nix {
}
TEST(parseURL, parseFileURLWithQueryAndFragment) {
auto s = "file:///none/of/your/business";
auto s = "file:///none/of//your/business";
auto parsed = parseURL(s);
ParsedURL expected {
@ -186,7 +186,7 @@ namespace nix {
.base = "",
.scheme = "file",
.authority = "",
.path = "/none/of/your/business",
.path = "/none/of//your/business",
.query = (StringMap) { },
.fragment = "",
};

2
src/libutil/url-parts.hh
View file

@ -18,7 +18,7 @@ const static std::string userRegex = "(?:(?:" + unreservedRegex + "|" + pctEncod
const static std::string authorityRegex = "(?:" + userRegex + "@)?" + hostRegex + "(?::[0-9]+)?";
const static std::string pcharRegex = "(?:" + unreservedRegex + "|" + pctEncoded + "|" + subdelimsRegex + "|[:@])";
const static std::string queryRegex = "(?:" + pcharRegex + "|[/? \"])*";
const static std::string segmentRegex = "(?:" + pcharRegex + "+)";
const static std::string segmentRegex = "(?:" + pcharRegex + "*)";
const static std::string absPathRegex = "(?:(?:/" + segmentRegex + ")*/?)";
const static std::string pathRegex = "(?:" + segmentRegex + "(?:/" + segmentRegex + ")*/?)";

20
src/libutil/util.cc
View file

@ -198,6 +198,17 @@ std::string_view baseNameOf(std::string_view path)
}
std::string expandTilde(std::string_view path)
{
// TODO: expand ~user ?
auto tilde = path.substr(0, 2);
if (tilde == "~/" || tilde == "~")
return getHome() + std::string(path.substr(1));
else
return std::string(path);
}
bool isInDir(std::string_view path, std::string_view dir)
{
return path.substr(0, 1) == "/"
@ -213,6 +224,15 @@ bool isDirOrInDir(std::string_view path, std::string_view dir)
}
struct stat stat(const Path & path)
{
struct stat st;
if (stat(path.c_str(), &st))
throw SysError("getting status of '%1%'", path);
return st;
}
struct stat lstat(const Path & path)
{
struct stat st;

4
src/libutil/util.hh
View file

@ -68,6 +68,9 @@ Path dirOf(const PathView path);
following the final `/' (trailing slashes are removed). */
std::string_view baseNameOf(std::string_view path);
/* Perform tilde expansion on a path. */
std::string expandTilde(std::string_view path);
/* Check whether 'path' is a descendant of 'dir'. Both paths must be
canonicalized. */
bool isInDir(std::string_view path, std::string_view dir);
@ -77,6 +80,7 @@ bool isInDir(std::string_view path, std::string_view dir);
bool isDirOrInDir(std::string_view path, std::string_view dir);
/* Get status of `path'. */
struct stat stat(const Path & path);
struct stat lstat(const Path & path);
/* Return true iff the given path exists. */

10
src/nix/app.cc
View file

@ -61,14 +61,18 @@ std::string resolveString(Store & store, const std::string & toResolve, const Bu
UnresolvedApp Installable::toApp(EvalState & state)
{
auto [cursor, attrPath] = getCursor(state);
auto cursor = getCursor(state);
auto attrPath = cursor->getAttrPath();
auto type = cursor->getAttr("type")->getString();
std::string expected = !attrPath.empty() && attrPath[0] == "apps" ? "app" : "derivation";
if (type != expected)
throw Error("attribute '%s' should have type '%s'", cursor->getAttrPathStr(), expected);
if (type == "app") {
auto [program, context] = cursor->getAttr("program")->getStringWithContext();
std::vector<StorePathWithOutputs> context2;
for (auto & [path, name] : context)
context2.push_back({path, {name}});
@ -101,7 +105,7 @@ UnresolvedApp Installable::toApp(EvalState & state)
}
else
throw Error("attribute '%s' has unsupported type '%s'", attrPath, type);
throw Error("attribute '%s' has unsupported type '%s'", cursor->getAttrPathStr(), type);
}
// FIXME: move to libcmd

2
src/nix/eval.cc
View file

@ -16,7 +16,7 @@ struct CmdEval : MixJSON, InstallableCommand
std::optional<std::string> apply;
std::optional<Path> writeTo;
CmdEval()
CmdEval() : InstallableCommand(true /* supportReadOnlyMode */)
{
addFlag({
.longName = "raw",

2
src/nix/flake.cc
View file

@ -705,7 +705,7 @@ struct CmdFlakeInitCommon : virtual Args, EvalCommand
defaultTemplateAttrPathsPrefixes,
lockFlags);
auto [cursor, attrPath] = installable.getCursor(*evalState);
auto cursor = installable.getCursor(*evalState);
auto templateDirAttr = cursor->getAttr("path");
auto templateDir = templateDirAttr->getString();

4
src/nix/flake.md
View file

@ -177,8 +177,8 @@ Currently the `type` attribute can be one of the following:
attribute `url`.
In URL form, the schema must be `http://`, `https://` or `file://`
URLs and the extension must be `.zip`, `.tar`, `.tar.gz`, `.tar.xz`,
`.tar.bz2` or `.tar.zst`.
URLs and the extension must be `.zip`, `.tar`, `.tgz`, `.tar.gz`,
`.tar.xz`, `.tar.bz2` or `.tar.zst`.
* `github`: A more efficient way to fetch repositories from
GitHub. The following attributes are required:

4
src/nix/search.cc
View file

@ -165,8 +165,8 @@ struct CmdSearch : InstallableCommand, MixJSON
}
};
for (auto & [cursor, prefix] : installable->getCursors(*state))
visit(*cursor, parseAttrPath(*state, prefix), true);
for (auto & cursor : installable->getCursors(*state))
visit(*cursor, cursor->getAttrPath(), true);
if (!json && !results)
throw Error("no results for the given search term(s)!");