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Thread ApplyConfigOptions through config parsing

Browse source 
This makes no changes to logic but makes the `ApplyConfigOptions` value
available to consumers.

Change-Id: I88cf53d38faac8472c556aee55c13d0acbd1e5db
This commit is contained in:
Rebecca Turner 2024-08-25 11:58:10 -07:00
parent b6884388a1
commit 5fc6fcb310
Signed by: rbt
SSH key fingerprint: SHA256:HU9KTlGeHEBIp12MT4UHG0uc//NRNoJMWfzVGX3igu4
8 changed files with 99 additions and 104 deletions
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2
src/libfetchers/fetch-settings.cc
View file

@ -7,7 +7,7 @@
namespace nix {
template<> AcceptFlakeConfig BaseSetting<AcceptFlakeConfig>::parse(const std::string & str) const
template<> AcceptFlakeConfig BaseSetting<AcceptFlakeConfig>::parse(const std::string & str, const ApplyConfigOptions & options) const
{
if (str == "true") return AcceptFlakeConfig::True;
else if (str == "ask") return AcceptFlakeConfig::Ask;

26
src/libstore/globals.cc
View file

@ -116,14 +116,15 @@ Settings::Settings()
void loadConfFile()
{
auto applyConfigFile = [&](const Path & path) {
auto applyConfigFile = [&](const ApplyConfigOptions & options) {
try {
std::string contents = readFile(path);
globalConfig.applyConfig(contents, path);
} catch (SysError &) { }
std::string contents = readFile(*options.path);
globalConfig.applyConfig(contents, options);
} catch (SysError &) {
}
};
applyConfigFile(settings.nixConfDir + "/nix.conf");
applyConfigFile(ApplyConfigOptions{.path = settings.nixConfDir + "/nix.conf"});
/* We only want to send overrides to the daemon, i.e. stuff from
~/.nix/nix.conf or the command line. */
@ -131,14 +132,13 @@ void loadConfFile()
auto files = settings.nixUserConfFiles;
for (auto file = files.rbegin(); file != files.rend(); file++) {
applyConfigFile(*file);
applyConfigFile(ApplyConfigOptions{.path = *file});
}
auto nixConfEnv = getEnv("NIX_CONFIG");
if (nixConfEnv.has_value()) {
globalConfig.applyConfig(nixConfEnv.value(), "NIX_CONFIG");
globalConfig.applyConfig(nixConfEnv.value(), ApplyConfigOptions{.fromEnvVar = true});
}
}
std::vector<Path> getUserConfigFiles()
@ -264,7 +264,7 @@ NLOHMANN_JSON_SERIALIZE_ENUM(SandboxMode, {
{SandboxMode::smDisabled, false},
});
template<> SandboxMode BaseSetting<SandboxMode>::parse(const std::string & str) const
template<> SandboxMode BaseSetting<SandboxMode>::parse(const std::string & str, const ApplyConfigOptions & options) const
{
if (str == "true") return smEnabled;
else if (str == "relaxed") return smRelaxed;
@ -307,7 +307,7 @@ template<> void BaseSetting<SandboxMode>::convertToArg(Args & args, const std::s
});
}
unsigned int MaxBuildJobsSetting::parse(const std::string & str) const
unsigned int MaxBuildJobsSetting::parse(const std::string & str, const ApplyConfigOptions & options) const
{
if (str == "auto") return std::max(1U, std::thread::hardware_concurrency());
else {
@ -315,15 +315,15 @@ unsigned int MaxBuildJobsSetting::parse(const std::string & str) const
return *n;
else
throw UsageError("configuration setting '%s' should be 'auto' or an integer", name);
}
}
}
Paths PluginFilesSetting::parse(const std::string & str) const
Paths PluginFilesSetting::parse(const std::string & str, const ApplyConfigOptions & options) const
{
if (pluginsLoaded)
throw UsageError("plugin-files set after plugins were loaded, you may need to move the flag before the subcommand");
return BaseSetting<Paths>::parse(str);
return BaseSetting<Paths>::parse(str, options);
}

5
src/libstore/globals.hh
View file

@ -26,7 +26,7 @@ struct MaxBuildJobsSetting : public BaseSetting<unsigned int>
options->addSetting(this);
}
unsigned int parse(const std::string & str) const override;
unsigned int parse(const std::string & str, const ApplyConfigOptions & options) const override;
};
struct PluginFilesSetting : public BaseSetting<Paths>
@ -43,7 +43,7 @@ struct PluginFilesSetting : public BaseSetting<Paths>
options->addSetting(this);
}
Paths parse(const std::string & str) const override;
Paths parse(const std::string & str, const ApplyConfigOptions & options) const override;
};
const uint32_t maxIdsPerBuild =
@ -1088,6 +1088,7 @@ void loadConfFile();
// Used by the Settings constructor
std::vector<Path> getUserConfigFiles();
std::vector<Path> getHomeConfigFile();
extern const std::string nixVersion;

22
src/libutil/config-impl.hh
View file

@ -51,14 +51,14 @@ bool BaseSetting<T>::isAppendable()
return trait::appendable;
}
template<> void BaseSetting<Strings>::appendOrSet(Strings newValue, bool append);
template<> void BaseSetting<StringSet>::appendOrSet(StringSet newValue, bool append);
template<> void BaseSetting<StringMap>::appendOrSet(StringMap newValue, bool append);
template<> void BaseSetting<ExperimentalFeatures>::appendOrSet(ExperimentalFeatures newValue, bool append);
template<> void BaseSetting<DeprecatedFeatures>::appendOrSet(DeprecatedFeatures newValue, bool append);
template<> void BaseSetting<Strings>::appendOrSet(Strings newValue, bool append, const ApplyConfigOptions & options);
template<> void BaseSetting<StringSet>::appendOrSet(StringSet newValue, bool append, const ApplyConfigOptions & options);
template<> void BaseSetting<StringMap>::appendOrSet(StringMap newValue, bool append, const ApplyConfigOptions & options);
template<> void BaseSetting<ExperimentalFeatures>::appendOrSet(ExperimentalFeatures newValue, bool append, const ApplyConfigOptions & options);
template<> void BaseSetting<DeprecatedFeatures>::appendOrSet(DeprecatedFeatures newValue, bool append, const ApplyConfigOptions & options);
template<typename T>
void BaseSetting<T>::appendOrSet(T newValue, bool append)
void BaseSetting<T>::appendOrSet(T newValue, bool append, const ApplyConfigOptions & options)
{
static_assert(
!trait::appendable,
@ -69,14 +69,14 @@ void BaseSetting<T>::appendOrSet(T newValue, bool append)
}
template<typename T>
void BaseSetting<T>::set(const std::string & str, bool append)
void BaseSetting<T>::set(const std::string & str, bool append, const ApplyConfigOptions & options)
{
if (experimentalFeatureSettings.isEnabled(experimentalFeature)) {
auto parsed = parse(str);
auto parsed = parse(str, options);
if (deprecated && (append || parsed != value)) {
warn("deprecated setting '%s' found (set to '%s')", name, str);
}
appendOrSet(std::move(parsed), append);
appendOrSet(std::move(parsed), append, options);
} else {
assert(experimentalFeature);
warn("Ignoring setting '%s' because experimental feature '%s' is not enabled",
@ -111,7 +111,7 @@ void BaseSetting<T>::convertToArg(Args & args, const std::string & category)
}
#define DECLARE_CONFIG_SERIALISER(TY) \
template<> TY BaseSetting< TY >::parse(const std::string & str) const; \
template<> TY BaseSetting< TY >::parse(const std::string & str, const ApplyConfigOptions & options) const; \
template<> std::string BaseSetting< TY >::to_string() const;
DECLARE_CONFIG_SERIALISER(std::string)
@ -124,7 +124,7 @@ DECLARE_CONFIG_SERIALISER(ExperimentalFeatures)
DECLARE_CONFIG_SERIALISER(DeprecatedFeatures)
template<typename T>
T BaseSetting<T>::parse(const std::string & str) const
T BaseSetting<T>::parse(const std::string & str, const ApplyConfigOptions & options) const
{
static_assert(std::is_integral<T>::value, "Integer required.");

85
src/libutil/config.cc
View file

@ -1,4 +1,5 @@
#include "config.hh"
#include "apply-config-options.hh"
#include "args.hh"
#include "abstract-setting-to-json.hh"
#include "experimental-features.hh"
@ -17,7 +18,7 @@ Config::Config(StringMap initials)
: AbstractConfig(std::move(initials))
{ }
bool Config::set(const std::string & name, const std::string & value)
bool Config::set(const std::string & name, const std::string & value, const ApplyConfigOptions & options)
{
bool append = false;
auto i = _settings.find(name);
@ -30,7 +31,7 @@ bool Config::set(const std::string & name, const std::string & value)
} else
return false;
}
i->second.setting->set(value, append);
i->second.setting->set(value, append, options);
i->second.setting->overridden = true;
return true;
}
@ -91,7 +92,7 @@ void Config::getSettings(std::map<std::string, SettingInfo> & res, bool overridd
}
static void applyConfigInner(const std::string & contents, const std::string & path, std::vector<std::pair<std::string, std::string>> & parsedContents) {
static void applyConfigInner(const std::string & contents, const ApplyConfigOptions & options, std::vector<std::pair<std::string, std::string>> & parsedContents) {
unsigned int pos = 0;
while (pos < contents.size()) {
@ -107,7 +108,7 @@ static void applyConfigInner(const std::string & contents, const std::string & p
if (tokens.empty()) continue;
if (tokens.size() < 2)
throw UsageError("illegal configuration line '%1%' in '%2%'", line, path);
throw UsageError("illegal configuration line '%1%' in '%2%'", line, options.relativeDisplay());
auto include = false;
auto ignoreMissing = false;
@ -119,24 +120,32 @@ static void applyConfigInner(const std::string & contents, const std::string & p
}
if (include) {
if (tokens.size() != 2)
throw UsageError("illegal configuration line '%1%' in '%2%'", line, path);
auto p = absPath(tokens[1], dirOf(path));
if (pathExists(p)) {
if (tokens.size() != 2) {
throw UsageError("illegal configuration line '%1%' in '%2%'", line, options.relativeDisplay());
}
if (!options.path) {
throw UsageError("can only include configuration '%1%' from files", tokens[1]);
}
auto pathToInclude = absPath(tokens[1], dirOf(*options.path));
if (pathExists(pathToInclude)) {
auto includeOptions = ApplyConfigOptions {
.path = pathToInclude,
.home = options.home,
};
try {
std::string includedContents = readFile(path);
applyConfigInner(includedContents, p, parsedContents);
std::string includedContents = readFile(pathToInclude);
applyConfigInner(includedContents, includeOptions, parsedContents);
} catch (SysError &) {
// TODO: Do we actually want to ignore this? Or is it better to fail?
}
} else if (!ignoreMissing) {
throw Error("file '%1%' included from '%2%' not found", p, path);
throw Error("file '%1%' included from '%2%' not found", pathToInclude, *options.path);
}
continue;
}
if (tokens[1] != "=")
throw UsageError("illegal configuration line '%1%' in '%2%'", line, path);
throw UsageError("illegal configuration line '%1%' in '%2%'", line, options.relativeDisplay());
std::string name = std::move(tokens[0]);
@ -150,20 +159,20 @@ static void applyConfigInner(const std::string & contents, const std::string & p
};
}
void AbstractConfig::applyConfig(const std::string & contents, const std::string & path) {
void AbstractConfig::applyConfig(const std::string & contents, const ApplyConfigOptions & options) {
std::vector<std::pair<std::string, std::string>> parsedContents;
applyConfigInner(contents, path, parsedContents);
applyConfigInner(contents, options, parsedContents);
// First apply experimental-feature related settings
for (const auto & [name, value] : parsedContents)
if (name == "experimental-features" || name == "extra-experimental-features")
set(name, value);
set(name, value, options);
// Then apply other settings
for (const auto & [name, value] : parsedContents)
if (name != "experimental-features" && name != "extra-experimental-features")
set(name, value);
set(name, value, options);
}
void Config::resetOverridden()
@ -241,7 +250,7 @@ void AbstractSetting::convertToArg(Args & args, const std::string & category)
bool AbstractSetting::isOverridden() const { return overridden; }
template<> std::string BaseSetting<std::string>::parse(const std::string & str) const
template<> std::string BaseSetting<std::string>::parse(const std::string & str, const ApplyConfigOptions & options) const
{
return str;
}
@ -251,7 +260,7 @@ template<> std::string BaseSetting<std::string>::to_string() const
return value;
}
template<> std::optional<std::string> BaseSetting<std::optional<std::string>>::parse(const std::string & str) const
template<> std::optional<std::string> BaseSetting<std::optional<std::string>>::parse(const std::string & str, const ApplyConfigOptions & options) const
{
if (str == "")
return std::nullopt;
@ -264,7 +273,7 @@ template<> std::string BaseSetting<std::optional<std::string>>::to_string() cons
return value ? *value : "";
}
template<> bool BaseSetting<bool>::parse(const std::string & str) const
template<> bool BaseSetting<bool>::parse(const std::string & str, const ApplyConfigOptions & options) const
{
if (str == "true" || str == "yes" || str == "1")
return true;
@ -297,12 +306,12 @@ template<> void BaseSetting<bool>::convertToArg(Args & args, const std::string &
});
}
template<> Strings BaseSetting<Strings>::parse(const std::string & str) const
template<> Strings BaseSetting<Strings>::parse(const std::string & str, const ApplyConfigOptions & options) const
{
return tokenizeString<Strings>(str);
}
template<> void BaseSetting<Strings>::appendOrSet(Strings newValue, bool append)
template<> void BaseSetting<Strings>::appendOrSet(Strings newValue, bool append, const ApplyConfigOptions & options)
{
if (!append) value.clear();
value.insert(value.end(), std::make_move_iterator(newValue.begin()),
@ -314,12 +323,12 @@ template<> std::string BaseSetting<Strings>::to_string() const
return concatStringsSep(" ", value);
}
template<> StringSet BaseSetting<StringSet>::parse(const std::string & str) const
template<> StringSet BaseSetting<StringSet>::parse(const std::string & str, const ApplyConfigOptions & options) const
{
return tokenizeString<StringSet>(str);
}
template<> void BaseSetting<StringSet>::appendOrSet(StringSet newValue, bool append)
template<> void BaseSetting<StringSet>::appendOrSet(StringSet newValue, bool append, const ApplyConfigOptions & options)
{
if (!append) value.clear();
value.insert(std::make_move_iterator(newValue.begin()), std::make_move_iterator(newValue.end()));
@ -330,7 +339,7 @@ template<> std::string BaseSetting<StringSet>::to_string() const
return concatStringsSep(" ", value);
}
template<> ExperimentalFeatures BaseSetting<ExperimentalFeatures>::parse(const std::string & str) const
template<> ExperimentalFeatures BaseSetting<ExperimentalFeatures>::parse(const std::string & str, const ApplyConfigOptions & options) const
{
ExperimentalFeatures res{};
for (auto & s : tokenizeString<StringSet>(str)) {
@ -342,7 +351,7 @@ template<> ExperimentalFeatures BaseSetting<ExperimentalFeatures>::parse(const s
return res;
}
template<> void BaseSetting<ExperimentalFeatures>::appendOrSet(ExperimentalFeatures newValue, bool append)
template<> void BaseSetting<ExperimentalFeatures>::appendOrSet(ExperimentalFeatures newValue, bool append, const ApplyConfigOptions & options)
{
if (append)
value = value | newValue;
@ -359,7 +368,7 @@ template<> std::string BaseSetting<ExperimentalFeatures>::to_string() const
return concatStringsSep(" ", stringifiedXpFeatures);
}
template<> DeprecatedFeatures BaseSetting<DeprecatedFeatures>::parse(const std::string & str) const
template<> DeprecatedFeatures BaseSetting<DeprecatedFeatures>::parse(const std::string & str, const ApplyConfigOptions & options) const
{
DeprecatedFeatures res{};
for (auto & s : tokenizeString<StringSet>(str)) {
@ -371,7 +380,7 @@ template<> DeprecatedFeatures BaseSetting<DeprecatedFeatures>::parse(const std::
return res;
}
template<> void BaseSetting<DeprecatedFeatures>::appendOrSet(DeprecatedFeatures newValue, bool append)
template<> void BaseSetting<DeprecatedFeatures>::appendOrSet(DeprecatedFeatures newValue, bool append, const ApplyConfigOptions & options)
{
if (append)
value = value | newValue;
@ -388,7 +397,7 @@ template<> std::string BaseSetting<DeprecatedFeatures>::to_string() const
return concatStringsSep(" ", stringifiedDpFeatures);
}
template<> StringMap BaseSetting<StringMap>::parse(const std::string & str) const
template<> StringMap BaseSetting<StringMap>::parse(const std::string & str, const ApplyConfigOptions & options) const
{
StringMap res;
for (const auto & s : tokenizeString<Strings>(str)) {
@ -399,7 +408,7 @@ template<> StringMap BaseSetting<StringMap>::parse(const std::string & str) cons
return res;
}
template<> void BaseSetting<StringMap>::appendOrSet(StringMap newValue, bool append)
template<> void BaseSetting<StringMap>::appendOrSet(StringMap newValue, bool append, const ApplyConfigOptions & options)
{
if (!append) value.clear();
value.insert(std::make_move_iterator(newValue.begin()), std::make_move_iterator(newValue.end()));
@ -426,7 +435,7 @@ template class BaseSetting<StringMap>;
template class BaseSetting<ExperimentalFeatures>;
template class BaseSetting<DeprecatedFeatures>;
static Path parsePath(const AbstractSetting & s, const std::string & str)
static Path parsePath(const AbstractSetting & s, const std::string & str, const ApplyConfigOptions & options)
{
if (str == "")
throw UsageError("setting '%s' is a path and paths cannot be empty", s.name);
@ -434,26 +443,26 @@ static Path parsePath(const AbstractSetting & s, const std::string & str)
return canonPath(str);
}
template<> Path PathsSetting<Path>::parse(const std::string & str) const
template<> Path PathsSetting<Path>::parse(const std::string & str, const ApplyConfigOptions & options) const
{
return parsePath(*this, str);
return parsePath(*this, str, options);
}
template<> std::optional<Path> PathsSetting<std::optional<Path>>::parse(const std::string & str) const
template<> std::optional<Path> PathsSetting<std::optional<Path>>::parse(const std::string & str, const ApplyConfigOptions & options) const
{
if (str == "")
return std::nullopt;
else
return parsePath(*this, str);
return parsePath(*this, str, options);
}
template<> Paths PathsSetting<Paths>::parse(const std::string & str) const
template<> Paths PathsSetting<Paths>::parse(const std::string & str, const ApplyConfigOptions & options) const
{
auto strings = tokenizeString<Strings>(str);
Paths parsed;
for (auto str : strings) {
parsed.push_back(canonPath(str));
parsed.push_back(parsePath(*this, str, options));
}
return parsed;
@ -464,10 +473,10 @@ template class PathsSetting<std::optional<Path>>;
template class PathsSetting<Paths>;
bool GlobalConfig::set(const std::string & name, const std::string & value)
bool GlobalConfig::set(const std::string & name, const std::string & value, const ApplyConfigOptions & options)
{
for (auto & config : *configRegistrations)
if (config->set(name, value)) return true;
if (config->set(name, value, options)) return true;
unknownSettings.emplace(name, value);

19
src/libutil/config.hh
View file

@ -10,6 +10,7 @@
#include "types.hh"
#include "experimental-features.hh"
#include "deprecated-features.hh"
#include "apply-config-options.hh"
namespace nix {
@ -61,7 +62,7 @@ public:
* Sets the value referenced by `name` to `value`. Returns true if the
* setting is known, false otherwise.
*/
virtual bool set(const std::string & name, const std::string & value) = 0;
virtual bool set(const std::string & name, const std::string & value, const ApplyConfigOptions & options = {}) = 0;
struct SettingInfo
{
@ -81,7 +82,7 @@ public:
* - contents: configuration contents to be parsed and applied
* - path: location of the configuration file
*/
void applyConfig(const std::string & contents, const std::string & path = "<unknown>");
void applyConfig(const std::string & contents, const ApplyConfigOptions & options = {});
/**
* Resets the `overridden` flag of all Settings
@ -155,7 +156,7 @@ public:
Config(StringMap initials = {});
bool set(const std::string & name, const std::string & value) override;
bool set(const std::string & name, const std::string & value, const ApplyConfigOptions & options = {}) override;
void addSetting(AbstractSetting * setting);
@ -200,7 +201,7 @@ protected:
virtual ~AbstractSetting();
virtual void set(const std::string & value, bool append = false) = 0;
virtual void set(const std::string & value, bool append = false, const ApplyConfigOptions & options = {}) = 0;
/**
* Whether the type is appendable; i.e. whether the `append`
@ -237,7 +238,7 @@ protected:
*
* Used by `set()`.
*/
virtual T parse(const std::string & str) const;
virtual T parse(const std::string & str, const ApplyConfigOptions & options) const;
/**
* Append or overwrite `value` with `newValue`.
@ -247,7 +248,7 @@ protected:
*
* @param append Whether to append or overwrite.
*/
virtual void appendOrSet(T newValue, bool append);
virtual void appendOrSet(T newValue, bool append, const ApplyConfigOptions & options);
public:
@ -284,7 +285,7 @@ public:
* Uses `parse()` to get the value from `str`, and `appendOrSet()`
* to set it.
*/
void set(const std::string & str, bool append = false) override final;
void set(const std::string & str, bool append = false, const ApplyConfigOptions & options = {}) override final;
/**
* C++ trick; This is template-specialized to compile-time indicate whether
@ -373,7 +374,7 @@ public:
options->addSetting(this);
}
T parse(const std::string & str) const override;
T parse(const std::string & str, const ApplyConfigOptions & options) const override;
void operator =(const T & v) { this->assign(v); }
};
@ -384,7 +385,7 @@ struct GlobalConfig : public AbstractConfig
typedef std::vector<Config*> ConfigRegistrations;
static ConfigRegistrations * configRegistrations;
bool set(const std::string & name, const std::string & value) override;
bool set(const std::string & name, const std::string & value, const ApplyConfigOptions & options = {}) override;
void getSettings(std::map<std::string, SettingInfo> & res, bool overriddenOnly = false) override;

2
tests/unit/libutil/config.cc
View file

@ -80,7 +80,7 @@ namespace nix {
class TestSetting : public AbstractSetting {
public:
TestSetting() : AbstractSetting("test", "test", {}) {}
void set(const std::string & value, bool append) override {}
void set(const std::string & value, bool append, const ApplyConfigOptions & options) override {}
std::string to_string() const override { return {}; }
bool isAppendable() override { return false; }
};

42
tests/unit/libutil/paths-setting.cc
View file

@ -11,14 +11,13 @@ namespace nix {
class PathsSettingTestConfig : public Config
{
public:
PathsSettingTestConfig()
: Config()
{ }
PathsSettingTestConfig() : Config() {}
PathsSetting<Paths> paths{this, Paths(), "paths", "documentation"};
};
struct PathsSettingTest : public ::testing::Test {
struct PathsSettingTest : public ::testing::Test
{
public:
PathsSettingTestConfig mkConfig()
{
@ -26,33 +25,27 @@ public:
}
};
TEST_F(PathsSettingTest, parse) {
TEST_F(PathsSettingTest, parse)
{
auto config = mkConfig();
// Not an absolute path:
ASSERT_THROW(config.paths.parse("puppy.nix"), Error);
ASSERT_THROW(config.paths.parse("puppy.nix", {}), Error);
ASSERT_THAT(
config.paths.parse("/puppy.nix"),
Eq<Paths>({"/puppy.nix"})
);
ASSERT_THAT(config.paths.parse("/puppy.nix", {}), Eq<Paths>({"/puppy.nix"}));
// Splits on whitespace:
ASSERT_THAT(
config.paths.parse("/puppy.nix /doggy.nix"),
Eq<Paths>({"/puppy.nix", "/doggy.nix"})
config.paths.parse("/puppy.nix /doggy.nix", {}), Eq<Paths>({"/puppy.nix", "/doggy.nix"})
);
// Splits on _any_ whitespace:
ASSERT_THAT(
config.paths.parse("/puppy.nix \t /doggy.nix\n\n\n/borzoi.nix\r/goldie.nix"),
config.paths.parse("/puppy.nix \t /doggy.nix\n\n\n/borzoi.nix\r/goldie.nix", {}),
Eq<Paths>({"/puppy.nix", "/doggy.nix", "/borzoi.nix", "/goldie.nix"})
);
// Canonicizes paths:
ASSERT_THAT(
config.paths.parse("/puppy/../doggy.nix"),
Eq<Paths>({"/doggy.nix"})
);
ASSERT_THAT(config.paths.parse("/puppy/../doggy.nix", {}), Eq<Paths>({"/doggy.nix"}));
}
TEST_F(PathsSettingTest, append) {
@ -61,26 +54,17 @@ TEST_F(PathsSettingTest, append) {
ASSERT_TRUE(config.paths.isAppendable());
// Starts with no paths:
ASSERT_THAT(
config.paths.get(),
Eq<Paths>({})
);
ASSERT_THAT(config.paths.get(), Eq<Paths>({}));
// Can append a path:
config.paths.set("/puppy.nix", true);
ASSERT_THAT(
config.paths.get(),
Eq<Paths>({"/puppy.nix"})
);
ASSERT_THAT(config.paths.get(), Eq<Paths>({"/puppy.nix"}));
// Can append multiple paths:
config.paths.set("/silly.nix /doggy.nix", true);
ASSERT_THAT(
config.paths.get(),
Eq<Paths>({"/puppy.nix", "/silly.nix", "/doggy.nix"})
);
ASSERT_THAT(config.paths.get(), Eq<Paths>({"/puppy.nix", "/silly.nix", "/doggy.nix"}));
}
} // namespace nix