mirror of
https://github.com/NixOS/nixpkgs.git
synced 2025-06-30 04:55:25 +03:00
Reformat for 4-space indentation
Specifically, with
clang-format --style='{ IndentWidth: 4, BreakBeforeBraces: Mozilla, ColumnLimit: 120, PointerAlignment: Middle }'
which was the clang-format invocation that produced the fewest diffs on
the nix source out of ~20 that I tried.
This commit is contained in:
Chuck
Linus Heckemann
parent
74f05df671
commit
4af8dbf896
3 changed files with 534 additions and 529 deletions
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@ -21,7 +21,8 @@ using nix::Strings;
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using std::string;
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// From nix/src/libexpr/attr-path.cc
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Strings parseAttrPath(const string &s) {
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Strings parseAttrPath(const string & s)
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{
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Strings res;
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string cur;
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string::const_iterator i = s.begin();
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@ -33,8 +34,7 @@ Strings parseAttrPath(const string &s) {
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++i;
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while (1) {
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if (i == s.end())
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throw Error(format("missing closing quote in selection path '%1%'") %
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s);
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throw Error(format("missing closing quote in selection path '%1%'") % s);
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if (*i == '"')
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break;
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cur.push_back(*i++);
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@ -49,21 +49,23 @@ Strings parseAttrPath(const string &s) {
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}
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// From nix/src/nix/repl.cc
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bool isVarName(const string &s) {
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bool isVarName(const string & s)
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{
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if (s.size() == 0)
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return false;
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char c = s[0];
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if ((c >= '0' && c <= '9') || c == '-' || c == '\'')
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return false;
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for (auto & i : s)
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if (!((i >= 'a' && i <= 'z') || (i >= 'A' && i <= 'Z') ||
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(i >= '0' && i <= '9') || i == '_' || i == '-' || i == '\''))
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if (!((i >= 'a' && i <= 'z') || (i >= 'A' && i <= 'Z') || (i >= '0' && i <= '9') || i == '_' || i == '-' ||
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i == '\''))
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return false;
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return true;
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}
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// From nix/src/nix/repl.cc
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std::ostream &printStringValue(std::ostream &str, const char *string) {
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std::ostream & printStringValue(std::ostream & str, const char * string)
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{
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str << "\"";
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for (const char * i = string; *i; i++)
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if (*i == '\"' || *i == '\\')
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@ -42,17 +42,22 @@ using nix::UsageError;
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using nix::Value;
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// An ostream wrapper to handle nested indentation
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class Out {
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class Out
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{
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public:
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class Separator {};
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class Separator
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{};
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const static Separator sep;
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enum LinePolicy { ONE_LINE, MULTI_LINE };
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explicit Out(std::ostream &ostream)
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: ostream(ostream), policy(ONE_LINE), write_since_sep(true) {}
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Out(Out &o, std::string const &start, std::string const &end,
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LinePolicy policy);
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enum LinePolicy
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{
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ONE_LINE,
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MULTI_LINE
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};
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explicit Out(std::ostream & ostream) : ostream(ostream), policy(ONE_LINE), write_since_sep(true) {}
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Out(Out & o, std::string const & start, std::string const & end, LinePolicy policy);
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Out(Out & o, std::string const & start, std::string const & end, int count)
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: Out(o, start, end, count < 2 ? ONE_LINE : MULTI_LINE) {}
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: Out(o, start, end, count < 2 ? ONE_LINE : MULTI_LINE)
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{}
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Out(Out const &) = delete;
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Out(Out &&) = default;
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Out & operator=(Out const &) = delete;
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@ -68,7 +73,8 @@ private:
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template <typename T> friend Out & operator<<(Out & o, T thing);
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};
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template <typename T> Out &operator<<(Out &o, T thing) {
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template <typename T> Out & operator<<(Out & o, T thing)
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{
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if (!o.write_since_sep && o.policy == Out::MULTI_LINE) {
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o.ostream << o.indentation;
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}
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@ -77,30 +83,28 @@ template <typename T> Out &operator<<(Out &o, T thing) {
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return o;
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}
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template <>
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Out &operator<<<Out::Separator>(Out &o, Out::Separator /* thing */) {
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template <> Out & operator<<<Out::Separator>(Out & o, Out::Separator /* thing */)
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{
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o.ostream << (o.policy == Out::ONE_LINE ? " " : "\n");
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o.write_since_sep = false;
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return o;
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}
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Out::Out(Out &o, std::string const &start, std::string const &end,
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LinePolicy policy)
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: ostream(o.ostream),
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indentation(policy == ONE_LINE ? o.indentation : o.indentation + " "),
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end(policy == ONE_LINE ? end : o.indentation + end), policy(policy),
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write_since_sep(true) {
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Out::Out(Out & o, std::string const & start, std::string const & end, LinePolicy policy)
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: ostream(o.ostream), indentation(policy == ONE_LINE ? o.indentation : o.indentation + " "),
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end(policy == ONE_LINE ? end : o.indentation + end), policy(policy), write_since_sep(true)
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{
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o << start;
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*this << Out::sep;
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}
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// Stuff needed for evaluation
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struct Context {
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Context(EvalState *state, Bindings *autoArgs, Value options_root,
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Value config_root)
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: state(state), autoArgs(autoArgs), options_root(options_root),
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config_root(config_root),
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underscore_type(state->symbols.create("_type")) {}
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struct Context
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{
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Context(EvalState * state, Bindings * autoArgs, Value options_root, Value config_root)
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: state(state), autoArgs(autoArgs), options_root(options_root), config_root(config_root),
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underscore_type(state->symbols.create("_type"))
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{}
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EvalState * state;
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Bindings * autoArgs;
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Value options_root;
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@ -108,7 +112,8 @@ struct Context {
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Symbol underscore_type;
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};
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Value evaluateValue(Context *ctx, Value *v) {
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Value evaluateValue(Context * ctx, Value * v)
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{
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ctx->state->forceValue(*v);
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if (ctx->autoArgs->empty()) {
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return *v;
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@ -118,7 +123,8 @@ Value evaluateValue(Context *ctx, Value *v) {
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return called;
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}
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bool isOption(Context *ctx, Value const &v) {
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bool isOption(Context * ctx, Value const & v)
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{
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if (v.type != tAttrs) {
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return false;
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}
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@ -141,7 +147,8 @@ bool isOption(Context *ctx, Value const &v) {
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// These are needed for paths like:
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// fileSystems."/".fsType
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// systemd.units."dbus.service".text
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std::string quoteAttribute(std::string const &attribute) {
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std::string quoteAttribute(std::string const & attribute)
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{
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if (isVarName(attribute)) {
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return attribute;
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}
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@ -150,21 +157,19 @@ std::string quoteAttribute(std::string const &attribute) {
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return buf.str();
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}
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std::string const appendPath(std::string const &prefix,
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std::string const &suffix) {
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std::string const appendPath(std::string const & prefix, std::string const & suffix)
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{
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if (prefix.empty()) {
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return quoteAttribute(suffix);
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}
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return prefix + "." + quoteAttribute(suffix);
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}
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bool forbiddenRecursionName(std::string name) {
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return (!name.empty() && name[0] == '_') || name == "haskellPackages";
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}
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bool forbiddenRecursionName(std::string name) { return (!name.empty() && name[0] == '_') || name == "haskellPackages"; }
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void recurse(const std::function<bool(std::string const &path,
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std::variant<Value, Error>)> &f,
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Context *ctx, Value v, std::string const &path) {
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void recurse(const std::function<bool(std::string const & path, std::variant<Value, Error>)> & f, Context * ctx,
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Value v, std::string const & path)
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{
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std::variant<Value, Error> evaluated;
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try {
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evaluated = evaluateValue(ctx, &v);
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@ -190,12 +195,11 @@ void recurse(const std::function<bool(std::string const &path,
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}
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// Calls f on all the option names
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void mapOptions(const std::function<void(std::string const &path)> &f,
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Context *ctx, Value root) {
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void mapOptions(const std::function<void(std::string const & path)> & f, Context * ctx, Value root)
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{
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recurse(
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[f, ctx](std::string const & path, std::variant<Value, Error> v) {
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bool isOpt = std::holds_alternative<Error>(v) ||
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isOption(ctx, std::get<Value>(v));
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bool isOpt = std::holds_alternative<Error>(v) || isOption(ctx, std::get<Value>(v));
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if (isOpt) {
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f(path);
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}
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@ -225,22 +229,19 @@ void mapOptions(const std::function<void(std::string const &path)> &f,
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// users.users.nixbld1 = ... .. ...
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// ...
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// users.users.systemd-timesync = ... .. ...
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void mapConfigValuesInOption(
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const std::function<void(std::string const &path,
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std::variant<Value, Error> v)> &f,
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std::string const &path, Context *ctx) {
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void mapConfigValuesInOption(const std::function<void(std::string const & path, std::variant<Value, Error> v)> & f,
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std::string const & path, Context * ctx)
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{
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Value * option;
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try {
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option =
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findAlongAttrPath(*ctx->state, path, *ctx->autoArgs, ctx->config_root);
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option = findAlongAttrPath(*ctx->state, path, *ctx->autoArgs, ctx->config_root);
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} catch (Error & e) {
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f(path, e);
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return;
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}
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recurse(
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[f, ctx](std::string const & path, std::variant<Value, Error> v) {
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bool leaf = std::holds_alternative<Error>(v) ||
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std::get<Value>(v).type != tAttrs ||
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bool leaf = std::holds_alternative<Error>(v) || std::get<Value>(v).type != tAttrs ||
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ctx->state->isDerivation(std::get<Value>(v));
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if (!leaf) {
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return true; // Keep digging
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@ -253,31 +254,30 @@ void mapConfigValuesInOption(
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std::string describeError(Error const & e) { return "«error: " + e.msg() + "»"; }
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void describeDerivation(Context *ctx, Out &out, Value v) {
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void describeDerivation(Context * ctx, Out & out, Value v)
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{
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// Copy-pasted from nix/src/nix/repl.cc :(
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Bindings::iterator i = v.attrs->find(ctx->state->sDrvPath);
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PathSet pathset;
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try {
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Path drvPath = i != v.attrs->end()
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? ctx->state->coerceToPath(*i->pos, *i->value, pathset)
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: "???";
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Path drvPath = i != v.attrs->end() ? ctx->state->coerceToPath(*i->pos, *i->value, pathset) : "???";
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out << "«derivation " << drvPath << "»";
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} catch (Error & e) {
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out << describeError(e);
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}
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}
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Value parseAndEval(EvalState *state, std::string const &expression,
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std::string const &path) {
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Value parseAndEval(EvalState * state, std::string const & expression, std::string const & path)
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{
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Value v{};
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state->eval(state->parseExprFromString(expression, absPath(path)), v);
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return v;
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}
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void printValue(Context *ctx, Out &out, std::variant<Value, Error> maybe_value,
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std::string const &path);
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void printValue(Context * ctx, Out & out, std::variant<Value, Error> maybe_value, std::string const & path);
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void printUnsortedList(Context *ctx, Out &out, Value &v) {
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void printUnsortedList(Context * ctx, Out & out, Value & v)
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{
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Out list_out(out, "[", "]", v.listSize());
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for (unsigned int n = 0; n < v.listSize(); ++n) {
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printValue(ctx, list_out, *v.listElems()[n], "");
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@ -285,7 +285,8 @@ void printUnsortedList(Context *ctx, Out &out, Value &v) {
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}
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}
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void printSortedList(Context *ctx, Out &out, Value &v) {
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void printSortedList(Context * ctx, Out & out, Value & v)
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{
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std::vector<std::string> results;
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for (unsigned int n = 0; n < v.listSize(); ++n) {
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std::ostringstream buf;
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@ -300,7 +301,8 @@ void printSortedList(Context *ctx, Out &out, Value &v) {
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}
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}
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bool shouldSort(Context *ctx, Value &v) {
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bool shouldSort(Context * ctx, Value & v)
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{
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// Some lists should clearly be printed in sorted order, like
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// environment.systemPackages. Some clearly should not, like
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// services.xserver.multitouch.buttonsMap. As a conservative heuristic, sort
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@ -308,7 +310,8 @@ bool shouldSort(Context *ctx, Value &v) {
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return v.listSize() > 0 && ctx->state->isDerivation(*v.listElems()[0]);
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}
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void printList(Context *ctx, Out &out, Value &v) {
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void printList(Context * ctx, Out & out, Value & v)
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{
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if (shouldSort(ctx, v)) {
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printSortedList(ctx, out, v);
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} else {
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@ -316,7 +319,8 @@ void printList(Context *ctx, Out &out, Value &v) {
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}
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}
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void printAttrs(Context *ctx, Out &out, Value &v, std::string const &path) {
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void printAttrs(Context * ctx, Out & out, Value & v, std::string const & path)
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{
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Out attrs_out(out, "{", "}", v.attrs->size());
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for (const auto & a : v.attrs->lexicographicOrder()) {
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std::string name = a->name;
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@ -326,7 +330,8 @@ void printAttrs(Context *ctx, Out &out, Value &v, std::string const &path) {
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}
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}
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void multiLineStringEscape(Out &out, std::string const &s) {
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void multiLineStringEscape(Out & out, std::string const & s)
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{
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int i;
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for (i = 1; i < s.size(); i++) {
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if (s[i - 1] == '$' && s[i] == '{') {
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@ -344,7 +349,8 @@ void multiLineStringEscape(Out &out, std::string const &s) {
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}
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}
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void printMultiLineString(Out &out, Value const &v) {
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void printMultiLineString(Out & out, Value const & v)
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{
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std::string s = v.string.s;
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Out str_out(out, "''", "''", Out::MULTI_LINE);
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std::string::size_type begin = 0;
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@ -360,8 +366,8 @@ void printMultiLineString(Out &out, Value const &v) {
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}
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}
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void printValue(Context *ctx, Out &out, std::variant<Value, Error> maybe_value,
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std::string const &path) {
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void printValue(Context * ctx, Out & out, std::variant<Value, Error> maybe_value, std::string const & path)
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{
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try {
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if (std::holds_alternative<Error>(maybe_value)) {
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throw Error{std::get<Error>(maybe_value)};
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@ -373,8 +379,7 @@ void printValue(Context *ctx, Out &out, std::variant<Value, Error> maybe_value,
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printList(ctx, out, v);
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} else if (v.type == tAttrs) {
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printAttrs(ctx, out, v, path);
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} else if (v.type == tString &&
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std::string(v.string.s).find('\n') != std::string::npos) {
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} else if (v.type == tString && std::string(v.string.s).find('\n') != std::string::npos) {
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printMultiLineString(out, v);
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} else {
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ctx->state->forceValueDeep(v);
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|
|
@ -396,19 +401,19 @@ void printValue(Context *ctx, Out &out, std::variant<Value, Error> maybe_value,
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}
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}
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void printConfigValue(Context *ctx, Out &out, std::string const &path,
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std::variant<Value, Error> v) {
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void printConfigValue(Context * ctx, Out & out, std::string const & path, std::variant<Value, Error> v)
|
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{
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out << path << " = ";
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printValue(ctx, out, std::move(v), path);
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out << ";\n";
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}
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void printAll(Context *ctx, Out &out) {
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void printAll(Context * ctx, Out & out)
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{
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mapOptions(
|
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[ctx, &out](std::string const & option_path) {
|
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mapConfigValuesInOption(
|
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[ctx, &out](std::string const &config_path,
|
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std::variant<Value, Error> v) {
|
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[ctx, &out](std::string const & config_path, std::variant<Value, Error> v) {
|
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printConfigValue(ctx, out, config_path, v);
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},
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option_path, ctx);
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|
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@ -416,18 +421,17 @@ void printAll(Context *ctx, Out &out) {
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ctx, ctx->options_root);
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}
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void printAttr(Context *ctx, Out &out, std::string const &path, Value *root) {
|
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void printAttr(Context * ctx, Out & out, std::string const & path, Value * root)
|
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{
|
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try {
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printValue(ctx, out,
|
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*findAlongAttrPath(*ctx->state, path, *ctx->autoArgs, *root),
|
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path);
|
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printValue(ctx, out, *findAlongAttrPath(*ctx->state, path, *ctx->autoArgs, *root), path);
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} catch (Error & e) {
|
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out << describeError(e);
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}
|
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}
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|
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void printOption(Context *ctx, Out &out, std::string const &path,
|
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Value *option) {
|
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void printOption(Context * ctx, Out & out, std::string const & path, Value * option)
|
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{
|
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out << "Value:\n";
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printAttr(ctx, out, path, &ctx->config_root);
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|
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|
|
@ -451,7 +455,8 @@ void printOption(Context *ctx, Out &out, std::string const &path,
|
|||
out << "\n";
|
||||
}
|
||||
|
||||
void printListing(Out &out, Value *v) {
|
||||
void printListing(Out & out, Value * v)
|
||||
{
|
||||
// Print this header on stderr rather than stdout because the old shell script
|
||||
// implementation did. I don't know why.
|
||||
std::cerr << "This attribute set contains:\n";
|
||||
|
|
@ -465,7 +470,8 @@ void printListing(Out &out, Value *v) {
|
|||
|
||||
// Carefully walk an option path, looking for sub-options when a path walks past
|
||||
// an option value.
|
||||
Value findAlongOptionPath(Context *ctx, std::string const &path) {
|
||||
Value findAlongOptionPath(Context * ctx, std::string const & path)
|
||||
{
|
||||
Strings tokens = parseAttrPath(path);
|
||||
Value v = ctx->options_root;
|
||||
for (auto i = tokens.begin(); i != tokens.end(); i++) {
|
||||
|
|
@ -476,12 +482,10 @@ Value findAlongOptionPath(Context *ctx, std::string const &path) {
|
|||
throw Error("empty attribute name in selection path '" + path + "'");
|
||||
}
|
||||
if (isOption(ctx, v) && !last_attribute) {
|
||||
Value getSubOptions = evaluateValue(
|
||||
ctx, findAlongAttrPath(*ctx->state, "type.getSubOptions",
|
||||
*ctx->autoArgs, v));
|
||||
Value getSubOptions =
|
||||
evaluateValue(ctx, findAlongAttrPath(*ctx->state, "type.getSubOptions", *ctx->autoArgs, v));
|
||||
if (getSubOptions.type != tLambda) {
|
||||
throw Error("Option's type.getSubOptions isn't a function at '" + attr +
|
||||
"' in path '" + path + "'");
|
||||
throw Error("Option's type.getSubOptions isn't a function at '" + attr + "' in path '" + path + "'");
|
||||
}
|
||||
Value emptyString{};
|
||||
nix::mkString(emptyString, "");
|
||||
|
|
@ -489,13 +493,11 @@ Value findAlongOptionPath(Context *ctx, std::string const &path) {
|
|||
// Note that we've consumed attr, but didn't actually use it.
|
||||
} else if (v.type != tAttrs) {
|
||||
throw Error("attribute '" + attr + "' in path '" + path +
|
||||
"' attempts to index a value that should be a set but is " +
|
||||
showType(v));
|
||||
"' attempts to index a value that should be a set but is " + showType(v));
|
||||
} else {
|
||||
auto const & next = v.attrs->find(ctx->state->symbols.create(attr));
|
||||
if (next == v.attrs->end()) {
|
||||
throw Error("attribute '" + attr + "' in path '" + path +
|
||||
"' not found");
|
||||
throw Error("attribute '" + attr + "' in path '" + path + "' not found");
|
||||
}
|
||||
v = *next->value;
|
||||
}
|
||||
|
|
@ -503,7 +505,8 @@ Value findAlongOptionPath(Context *ctx, std::string const &path) {
|
|||
return v;
|
||||
}
|
||||
|
||||
void printOne(Context *ctx, Out &out, std::string const &path) {
|
||||
void printOne(Context * ctx, Out & out, std::string const & path)
|
||||
{
|
||||
try {
|
||||
Value option = findAlongOptionPath(ctx, path);
|
||||
option = evaluateValue(ctx, &option);
|
||||
|
|
@ -520,19 +523,20 @@ void printOne(Context *ctx, Out &out, std::string const &path) {
|
|||
}
|
||||
}
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
int main(int argc, char ** argv)
|
||||
{
|
||||
bool all = false;
|
||||
std::string path = ".";
|
||||
std::string options_expr = "(import <nixpkgs/nixos> {}).options";
|
||||
std::string config_expr = "(import <nixpkgs/nixos> {}).config";
|
||||
std::vector<std::string> args;
|
||||
|
||||
struct MyArgs : nix::LegacyArgs, nix::MixEvalArgs {
|
||||
struct MyArgs : nix::LegacyArgs, nix::MixEvalArgs
|
||||
{
|
||||
using nix::LegacyArgs::LegacyArgs;
|
||||
};
|
||||
|
||||
MyArgs myArgs(nix::baseNameOf(argv[0]),
|
||||
[&](Strings::iterator &arg, const Strings::iterator &end) {
|
||||
MyArgs myArgs(nix::baseNameOf(argv[0]), [&](Strings::iterator & arg, const Strings::iterator & end) {
|
||||
if (*arg == "--help") {
|
||||
nix::showManPage("nixos-option");
|
||||
} else if (*arg == "--version") {
|
||||
|
|
@ -564,8 +568,7 @@ int main(int argc, char **argv) {
|
|||
Value options_root = parseAndEval(state.get(), options_expr, path);
|
||||
Value config_root = parseAndEval(state.get(), config_expr, path);
|
||||
|
||||
Context ctx{state.get(), myArgs.getAutoArgs(*state), options_root,
|
||||
config_root};
|
||||
Context ctx{state.get(), myArgs.getAutoArgs(*state), options_root, config_root};
|
||||
Out out(std::cout);
|
||||
|
||||
if (all) {
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue