diff options
Diffstat (limited to 'src')
36 files changed, 706 insertions, 277 deletions
diff --git a/src/libexpr/attr-path.cc b/src/libexpr/attr-path.cc index 2e2a17b14..83854df49 100644 --- a/src/libexpr/attr-path.cc +++ b/src/libexpr/attr-path.cc @@ -130,7 +130,7 @@ Pos findDerivationFilename(EvalState & state, Value & v, std::string what) Symbol file = state.symbols.create(filename); - return { file, lineno, 0 }; + return { foFile, file, lineno, 0 }; } diff --git a/src/libexpr/attr-set.hh b/src/libexpr/attr-set.hh index c601d09c2..7eaa16c59 100644 --- a/src/libexpr/attr-set.hh +++ b/src/libexpr/attr-set.hh @@ -78,7 +78,7 @@ public: if (!a) throw Error({ .hint = hintfmt("attribute '%s' missing", name), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); return *a; diff --git a/src/libexpr/eval-inline.hh b/src/libexpr/eval-inline.hh index 3d544c903..30f6ec7db 100644 --- a/src/libexpr/eval-inline.hh +++ b/src/libexpr/eval-inline.hh @@ -11,7 +11,7 @@ LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s)) { throw EvalError({ .hint = hintfmt(s), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } @@ -25,7 +25,7 @@ LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s, const { throw TypeError({ .hint = hintfmt(s, showType(v)), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc index b90a64357..c1a9af9b2 100644 --- a/src/libexpr/eval.cc +++ b/src/libexpr/eval.cc @@ -529,7 +529,7 @@ LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s, const { throw EvalError({ .hint = hintfmt(s, s2), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } @@ -542,7 +542,7 @@ LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s, const { throw EvalError({ .hint = hintfmt(s, s2, s3), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } @@ -551,7 +551,7 @@ LocalNoInlineNoReturn(void throwEvalError(const Pos & p1, const char * s, const // p1 is where the error occurred; p2 is a position mentioned in the message. throw EvalError({ .hint = hintfmt(s, sym, p2), - .nixCode = NixCode { .errPos = p1 } + .errPos = p1 }); } @@ -559,7 +559,7 @@ LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s)) { throw TypeError({ .hint = hintfmt(s), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } @@ -572,7 +572,7 @@ LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s, const { throw TypeError({ .hint = hintfmt(s, fun.showNamePos(), s2), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } @@ -580,7 +580,7 @@ LocalNoInlineNoReturn(void throwAssertionError(const Pos & pos, const char * s, { throw AssertionError({ .hint = hintfmt(s, s1), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } @@ -588,23 +588,18 @@ LocalNoInlineNoReturn(void throwUndefinedVarError(const Pos & pos, const char * { throw UndefinedVarError({ .hint = hintfmt(s, s1), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } -LocalNoInline(void addErrorPrefix(Error & e, const char * s, const string & s2)) +LocalNoInline(void addErrorTrace(Error & e, const char * s, const string & s2)) { - e.addPrefix(format(s) % s2); + e.addTrace(std::nullopt, s, s2); } -LocalNoInline(void addErrorPrefix(Error & e, const char * s, const ExprLambda & fun, const Pos & pos)) +LocalNoInline(void addErrorTrace(Error & e, const Pos & pos, const char * s, const string & s2)) { - e.addPrefix(format(s) % fun.showNamePos() % pos); -} - -LocalNoInline(void addErrorPrefix(Error & e, const char * s, const string & s2, const Pos & pos)) -{ - e.addPrefix(format(s) % s2 % pos); + e.addTrace(pos, s, s2); } @@ -818,7 +813,7 @@ void EvalState::evalFile(const Path & path_, Value & v) try { eval(e, v); } catch (Error & e) { - addErrorPrefix(e, "while evaluating the file '%1%':\n", path2); + addErrorTrace(e, "while evaluating the file '%1%':", path2); throw; } @@ -1068,8 +1063,8 @@ void ExprSelect::eval(EvalState & state, Env & env, Value & v) } catch (Error & e) { if (pos2 && pos2->file != state.sDerivationNix) - addErrorPrefix(e, "while evaluating the attribute '%1%' at %2%:\n", - showAttrPath(state, env, attrPath), *pos2); + addErrorTrace(e, *pos2, "while evaluating the attribute '%1%'", + showAttrPath(state, env, attrPath)); throw; } @@ -1237,11 +1232,15 @@ void EvalState::callFunction(Value & fun, Value & arg, Value & v, const Pos & po /* Evaluate the body. This is conditional on showTrace, because catching exceptions makes this function not tail-recursive. */ - if (settings.showTrace) + if (loggerSettings.showTrace.get()) try { lambda.body->eval(*this, env2, v); } catch (Error & e) { - addErrorPrefix(e, "while evaluating %1%, called from %2%:\n", lambda, pos); + addErrorTrace(e, lambda.pos, "while evaluating %s", + (lambda.name.set() + ? "'" + (string) lambda.name + "'" + : "anonymous lambdaction")); + addErrorTrace(e, pos, "from call site%s", ""); throw; } else @@ -1516,7 +1515,7 @@ void EvalState::forceValueDeep(Value & v) try { recurse(*i.value); } catch (Error & e) { - addErrorPrefix(e, "while evaluating the attribute '%1%' at %2%:\n", i.name, *i.pos); + addErrorTrace(e, *i.pos, "while evaluating the attribute '%1%'", i.name); throw; } } @@ -1936,7 +1935,7 @@ string ExternalValueBase::coerceToString(const Pos & pos, PathSet & context, boo { throw TypeError({ .hint = hintfmt("cannot coerce %1% to a string", showType()), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } diff --git a/src/libexpr/eval.hh b/src/libexpr/eval.hh index 863365259..0d52a7f63 100644 --- a/src/libexpr/eval.hh +++ b/src/libexpr/eval.hh @@ -250,7 +250,7 @@ private: friend struct ExprAttrs; friend struct ExprLet; - Expr * parse(const char * text, const Path & path, + Expr * parse(const char * text, FileOrigin origin, const Path & path, const Path & basePath, StaticEnv & staticEnv); public: diff --git a/src/libexpr/nixexpr.cc b/src/libexpr/nixexpr.cc index b4b65883d..d5698011f 100644 --- a/src/libexpr/nixexpr.cc +++ b/src/libexpr/nixexpr.cc @@ -197,7 +197,22 @@ std::ostream & operator << (std::ostream & str, const Pos & pos) if (!pos) str << "undefined position"; else - str << (format(ANSI_BOLD "%1%" ANSI_NORMAL ":%2%:%3%") % (string) pos.file % pos.line % pos.column).str(); + { + auto f = format(ANSI_BOLD "%1%" ANSI_NORMAL ":%2%:%3%"); + switch (pos.origin) { + case foFile: + f % (string) pos.file; + break; + case foStdin: + case foString: + f % "(string)"; + break; + default: + throw Error("unhandled Pos origin!"); + } + str << (f % pos.line % pos.column).str(); + } + return str; } @@ -270,7 +285,7 @@ void ExprVar::bindVars(const StaticEnv & env) if (withLevel == -1) throw UndefinedVarError({ .hint = hintfmt("undefined variable '%1%'", name), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); fromWith = true; this->level = withLevel; diff --git a/src/libexpr/nixexpr.hh b/src/libexpr/nixexpr.hh index ec6fd3190..e4cbc660f 100644 --- a/src/libexpr/nixexpr.hh +++ b/src/libexpr/nixexpr.hh @@ -24,11 +24,12 @@ MakeError(RestrictedPathError, Error); struct Pos { + FileOrigin origin; Symbol file; unsigned int line, column; - Pos() : line(0), column(0) { }; - Pos(const Symbol & file, unsigned int line, unsigned int column) - : file(file), line(line), column(column) { }; + Pos() : origin(foString), line(0), column(0) { }; + Pos(FileOrigin origin, const Symbol & file, unsigned int line, unsigned int column) + : origin(origin), file(file), line(line), column(column) { }; operator bool() const { return line != 0; @@ -238,7 +239,7 @@ struct ExprLambda : Expr if (!arg.empty() && formals && formals->argNames.find(arg) != formals->argNames.end()) throw ParseError({ .hint = hintfmt("duplicate formal function argument '%1%'", arg), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); }; void setName(Symbol & name); diff --git a/src/libexpr/parser.y b/src/libexpr/parser.y index a639be64e..878f06c96 100644 --- a/src/libexpr/parser.y +++ b/src/libexpr/parser.y @@ -30,7 +30,8 @@ namespace nix { SymbolTable & symbols; Expr * result; Path basePath; - Symbol path; + Symbol file; + FileOrigin origin; ErrorInfo error; Symbol sLetBody; ParseData(EvalState & state) @@ -65,18 +66,17 @@ namespace nix { static void dupAttr(const AttrPath & attrPath, const Pos & pos, const Pos & prevPos) { throw ParseError({ - .hint = hintfmt("attribute '%1%' already defined at %2%", + .hint = hintfmt("attribute '%1%' already defined at %2%", showAttrPath(attrPath), prevPos), - .nixCode = NixCode { .errPos = pos }, + .errPos = pos }); } - static void dupAttr(Symbol attr, const Pos & pos, const Pos & prevPos) { throw ParseError({ .hint = hintfmt("attribute '%1%' already defined at %2%", attr, prevPos), - .nixCode = NixCode { .errPos = pos }, + .errPos = pos }); } @@ -148,7 +148,7 @@ static void addFormal(const Pos & pos, Formals * formals, const Formal & formal) throw ParseError({ .hint = hintfmt("duplicate formal function argument '%1%'", formal.name), - .nixCode = NixCode { .errPos = pos }, + .errPos = pos }); formals->formals.push_front(formal); } @@ -246,7 +246,7 @@ static Expr * stripIndentation(const Pos & pos, SymbolTable & symbols, vector<Ex static inline Pos makeCurPos(const YYLTYPE & loc, ParseData * data) { - return Pos(data->path, loc.first_line, loc.first_column); + return Pos(data->origin, data->file, loc.first_line, loc.first_column); } #define CUR_POS makeCurPos(*yylocp, data) @@ -259,7 +259,7 @@ void yyerror(YYLTYPE * loc, yyscan_t scanner, ParseData * data, const char * err { data->error = { .hint = hintfmt(error), - .nixCode = NixCode { .errPos = makeCurPos(*loc, data) } + .errPos = makeCurPos(*loc, data) }; } @@ -339,7 +339,7 @@ expr_function { if (!$2->dynamicAttrs.empty()) throw ParseError({ .hint = hintfmt("dynamic attributes not allowed in let"), - .nixCode = NixCode { .errPos = CUR_POS }, + .errPos = CUR_POS }); $$ = new ExprLet($2, $4); } @@ -419,7 +419,7 @@ expr_simple if (noURLLiterals) throw ParseError({ .hint = hintfmt("URL literals are disabled"), - .nixCode = NixCode { .errPos = CUR_POS } + .errPos = CUR_POS }); $$ = new ExprString(data->symbols.create($1)); } @@ -492,7 +492,7 @@ attrs } else throw ParseError({ .hint = hintfmt("dynamic attributes not allowed in inherit"), - .nixCode = NixCode { .errPos = makeCurPos(@2, data) }, + .errPos = makeCurPos(@2, data) }); } | { $$ = new AttrPath; } @@ -569,13 +569,24 @@ formal namespace nix { -Expr * EvalState::parse(const char * text, +Expr * EvalState::parse(const char * text, FileOrigin origin, const Path & path, const Path & basePath, StaticEnv & staticEnv) { yyscan_t scanner; ParseData data(*this); + data.origin = origin; + switch (origin) { + case foFile: + data.file = data.symbols.create(path); + break; + case foStdin: + case foString: + data.file = data.symbols.create(text); + break; + default: + assert(false); + } data.basePath = basePath; - data.path = data.symbols.create(path); yylex_init(&scanner); yy_scan_string(text, scanner); @@ -625,13 +636,13 @@ Expr * EvalState::parseExprFromFile(const Path & path) Expr * EvalState::parseExprFromFile(const Path & path, StaticEnv & staticEnv) { - return parse(readFile(path).c_str(), path, dirOf(path), staticEnv); + return parse(readFile(path).c_str(), foFile, path, dirOf(path), staticEnv); } Expr * EvalState::parseExprFromString(std::string_view s, const Path & basePath, StaticEnv & staticEnv) { - return parse(s.data(), "(string)", basePath, staticEnv); + return parse(s.data(), foString, "", basePath, staticEnv); } @@ -644,7 +655,7 @@ Expr * EvalState::parseExprFromString(std::string_view s, const Path & basePath) Expr * EvalState::parseStdin() { //Activity act(*logger, lvlTalkative, format("parsing standard input")); - return parseExprFromString(drainFD(0), absPath(".")); + return parse(drainFD(0).data(), foStdin, "", absPath("."), staticBaseEnv); } @@ -693,7 +704,7 @@ Path EvalState::findFile(SearchPath & searchPath, const string & path, const Pos ? "cannot look up '<%s>' in pure evaluation mode (use '--impure' to override)" : "file '%s' was not found in the Nix search path (add it using $NIX_PATH or -I)", path), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc index fbd3e62fa..138e00f48 100644 --- a/src/libexpr/primops.cc +++ b/src/libexpr/primops.cc @@ -96,7 +96,7 @@ static void prim_scopedImport(EvalState & state, const Pos & pos, Value * * args } catch (InvalidPathError & e) { throw EvalError({ .hint = hintfmt("cannot import '%1%', since path '%2%' is not valid", path, e.path), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } @@ -177,7 +177,7 @@ void prim_importNative(EvalState & state, const Pos & pos, Value * * args, Value .hint = hintfmt( "cannot import '%1%', since path '%2%' is not valid", path, e.path), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } @@ -215,7 +215,7 @@ void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v) if (count == 0) { throw EvalError({ .hint = hintfmt("at least one argument to 'exec' required"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } PathSet context; @@ -230,7 +230,7 @@ void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v) throw EvalError({ .hint = hintfmt("cannot execute '%1%', since path '%2%' is not valid", program, e.path), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } @@ -239,13 +239,13 @@ void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v) try { parsed = state.parseExprFromString(output, pos.file); } catch (Error & e) { - e.addPrefix(fmt("While parsing the output from '%1%', at %2%\n", program, pos)); + e.addTrace(pos, "While parsing the output from '%1%'", program); throw; } try { state.eval(parsed, v); } catch (Error & e) { - e.addPrefix(fmt("While evaluating the output from '%1%', at %2%\n", program, pos)); + e.addTrace(pos, "While evaluating the output from '%1%'", program); throw; } } @@ -385,7 +385,7 @@ static void prim_genericClosure(EvalState & state, const Pos & pos, Value * * ar if (startSet == args[0]->attrs->end()) throw EvalError({ .hint = hintfmt("attribute 'startSet' required"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); state.forceList(*startSet->value, pos); @@ -399,7 +399,7 @@ static void prim_genericClosure(EvalState & state, const Pos & pos, Value * * ar if (op == args[0]->attrs->end()) throw EvalError({ .hint = hintfmt("attribute 'operator' required"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); state.forceValue(*op->value, pos); @@ -421,7 +421,7 @@ static void prim_genericClosure(EvalState & state, const Pos & pos, Value * * ar if (key == e->attrs->end()) throw EvalError({ .hint = hintfmt("attribute 'key' required"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); state.forceValue(*key->value, pos); @@ -471,7 +471,7 @@ static void prim_addErrorContext(EvalState & state, const Pos & pos, Value * * a v = *args[1]; } catch (Error & e) { PathSet context; - e.addPrefix(format("%1%\n") % state.coerceToString(pos, *args[0], context)); + e.addTrace(std::nullopt, state.coerceToString(pos, *args[0], context)); throw; } } @@ -556,14 +556,14 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * if (attr == args[0]->attrs->end()) throw EvalError({ .hint = hintfmt("required attribute 'name' missing"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); string drvName; Pos & posDrvName(*attr->pos); try { drvName = state.forceStringNoCtx(*attr->value, pos); } catch (Error & e) { - e.addPrefix(fmt("while evaluating the derivation attribute 'name' at %1%:\n", posDrvName)); + e.addTrace(posDrvName, "while evaluating the derivation attribute 'name'"); throw; } @@ -603,7 +603,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * else throw EvalError({ .hint = hintfmt("invalid value '%s' for 'outputHashMode' attribute", s), - .nixCode = NixCode { .errPos = posDrvName } + .errPos = posDrvName }); }; @@ -613,7 +613,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * if (outputs.find(j) != outputs.end()) throw EvalError({ .hint = hintfmt("duplicate derivation output '%1%'", j), - .nixCode = NixCode { .errPos = posDrvName } + .errPos = posDrvName }); /* !!! Check whether j is a valid attribute name. */ @@ -623,14 +623,14 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * if (j == "drv") throw EvalError({ .hint = hintfmt("invalid derivation output name 'drv'" ), - .nixCode = NixCode { .errPos = posDrvName } + .errPos = posDrvName }); outputs.insert(j); } if (outputs.empty()) throw EvalError({ .hint = hintfmt("derivation cannot have an empty set of outputs"), - .nixCode = NixCode { .errPos = posDrvName } + .errPos = posDrvName }); }; @@ -696,8 +696,9 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * } } catch (Error & e) { - e.addPrefix(format("while evaluating the attribute '%1%' of the derivation '%2%' at %3%:\n") - % key % drvName % posDrvName); + e.addTrace(posDrvName, + "while evaluating the attribute '%1%' of the derivation '%2%'", + key, drvName); throw; } } @@ -745,20 +746,20 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * if (drv.builder == "") throw EvalError({ .hint = hintfmt("required attribute 'builder' missing"), - .nixCode = NixCode { .errPos = posDrvName } + .errPos = posDrvName }); if (drv.platform == "") throw EvalError({ .hint = hintfmt("required attribute 'system' missing"), - .nixCode = NixCode { .errPos = posDrvName } + .errPos = posDrvName }); /* Check whether the derivation name is valid. */ if (isDerivation(drvName)) throw EvalError({ .hint = hintfmt("derivation names are not allowed to end in '%s'", drvExtension), - .nixCode = NixCode { .errPos = posDrvName } + .errPos = posDrvName }); if (outputHash) { @@ -766,7 +767,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * if (outputs.size() != 1 || *(outputs.begin()) != "out") throw Error({ .hint = hintfmt("multiple outputs are not supported in fixed-output derivations"), - .nixCode = NixCode { .errPos = posDrvName } + .errPos = posDrvName }); std::optional<HashType> ht = parseHashTypeOpt(outputHashAlgo); @@ -880,7 +881,7 @@ static void prim_storePath(EvalState & state, const Pos & pos, Value * * args, V if (!state.store->isInStore(path)) throw EvalError({ .hint = hintfmt("path '%1%' is not in the Nix store", path), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); Path path2 = state.store->toStorePath(path); if (!settings.readOnlyMode) @@ -901,7 +902,7 @@ static void prim_pathExists(EvalState & state, const Pos & pos, Value * * args, .hint = hintfmt( "cannot check the existence of '%1%', since path '%2%' is not valid", path, e.path), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } @@ -947,7 +948,7 @@ static void prim_readFile(EvalState & state, const Pos & pos, Value * * args, Va } catch (InvalidPathError & e) { throw EvalError({ .hint = hintfmt("cannot read '%1%', since path '%2%' is not valid", path, e.path), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } string s = readFile(state.checkSourcePath(state.toRealPath(path, context))); @@ -978,7 +979,7 @@ static void prim_findFile(EvalState & state, const Pos & pos, Value * * args, Va if (i == v2.attrs->end()) throw EvalError({ .hint = hintfmt("attribute 'path' missing"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); PathSet context; @@ -989,7 +990,7 @@ static void prim_findFile(EvalState & state, const Pos & pos, Value * * args, Va } catch (InvalidPathError & e) { throw EvalError({ .hint = hintfmt("cannot find '%1%', since path '%2%' is not valid", path, e.path), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } @@ -1009,7 +1010,7 @@ static void prim_hashFile(EvalState & state, const Pos & pos, Value * * args, Va if (!ht) throw Error({ .hint = hintfmt("unknown hash type '%1%'", type), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); PathSet context; // discarded @@ -1028,7 +1029,7 @@ static void prim_readDir(EvalState & state, const Pos & pos, Value * * args, Val } catch (InvalidPathError & e) { throw EvalError({ .hint = hintfmt("cannot read '%1%', since path '%2%' is not valid", path, e.path), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } @@ -1104,7 +1105,7 @@ static void prim_toFile(EvalState & state, const Pos & pos, Value * * args, Valu "in 'toFile': the file named '%1%' must not contain a reference " "to a derivation but contains (%2%)", name, path), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); refs.insert(state.store->parseStorePath(path)); } @@ -1175,7 +1176,7 @@ static void prim_filterSource(EvalState & state, const Pos & pos, Value * * args if (!context.empty()) throw EvalError({ .hint = hintfmt("string '%1%' cannot refer to other paths", path), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); state.forceValue(*args[0], pos); @@ -1184,7 +1185,7 @@ static void prim_filterSource(EvalState & state, const Pos & pos, Value * * args .hint = hintfmt( "first argument in call to 'filterSource' is not a function but %1%", showType(*args[0])), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); addPath(state, pos, std::string(baseNameOf(path)), path, args[0], FileIngestionMethod::Recursive, std::nullopt, v); @@ -1207,7 +1208,7 @@ static void prim_path(EvalState & state, const Pos & pos, Value * * args, Value if (!context.empty()) throw EvalError({ .hint = hintfmt("string '%1%' cannot refer to other paths", path), - .nixCode = NixCode { .errPos = *attr.pos } + .errPos = *attr.pos }); } else if (attr.name == state.sName) name = state.forceStringNoCtx(*attr.value, *attr.pos); @@ -1221,13 +1222,13 @@ static void prim_path(EvalState & state, const Pos & pos, Value * * args, Value else throw EvalError({ .hint = hintfmt("unsupported argument '%1%' to 'addPath'", attr.name), - .nixCode = NixCode { .errPos = *attr.pos } + .errPos = *attr.pos }); } if (path.empty()) throw EvalError({ .hint = hintfmt("'path' required"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); if (name.empty()) name = baseNameOf(path); @@ -1288,7 +1289,7 @@ void prim_getAttr(EvalState & state, const Pos & pos, Value * * args, Value & v) if (i == args[1]->attrs->end()) throw EvalError({ .hint = hintfmt("attribute '%1%' missing", attr), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); // !!! add to stack trace? if (state.countCalls && i->pos) state.attrSelects[*i->pos]++; @@ -1371,7 +1372,7 @@ static void prim_listToAttrs(EvalState & state, const Pos & pos, Value * * args, if (j == v2.attrs->end()) throw TypeError({ .hint = hintfmt("'name' attribute missing in a call to 'listToAttrs'"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); string name = state.forceStringNoCtx(*j->value, pos); @@ -1381,7 +1382,7 @@ static void prim_listToAttrs(EvalState & state, const Pos & pos, Value * * args, if (j2 == v2.attrs->end()) throw TypeError({ .hint = hintfmt("'value' attribute missing in a call to 'listToAttrs'"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); v.attrs->push_back(Attr(sym, j2->value, j2->pos)); } @@ -1457,7 +1458,7 @@ static void prim_functionArgs(EvalState & state, const Pos & pos, Value * * args if (args[0]->type != tLambda) throw TypeError({ .hint = hintfmt("'functionArgs' requires a function"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); if (!args[0]->lambda.fun->matchAttrs) { @@ -1513,7 +1514,7 @@ static void elemAt(EvalState & state, const Pos & pos, Value & list, int n, Valu if (n < 0 || (unsigned int) n >= list.listSize()) throw Error({ .hint = hintfmt("list index %1% is out of bounds", n), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); state.forceValue(*list.listElems()[n], pos); v = *list.listElems()[n]; @@ -1543,7 +1544,7 @@ static void prim_tail(EvalState & state, const Pos & pos, Value * * args, Value if (args[0]->listSize() == 0) throw Error({ .hint = hintfmt("'tail' called on an empty list"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); state.mkList(v, args[0]->listSize() - 1); @@ -1688,7 +1689,7 @@ static void prim_genList(EvalState & state, const Pos & pos, Value * * args, Val if (len < 0) throw EvalError({ .hint = hintfmt("cannot create list of size %1%", len), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); state.mkList(v, len); @@ -1850,7 +1851,7 @@ static void prim_div(EvalState & state, const Pos & pos, Value * * args, Value & if (f2 == 0) throw EvalError({ .hint = hintfmt("division by zero"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); if (args[0]->type == tFloat || args[1]->type == tFloat) { @@ -1862,7 +1863,7 @@ static void prim_div(EvalState & state, const Pos & pos, Value * * args, Value & if (i1 == std::numeric_limits<NixInt>::min() && i2 == -1) throw EvalError({ .hint = hintfmt("overflow in integer division"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); mkInt(v, i1 / i2); @@ -1923,7 +1924,7 @@ static void prim_substring(EvalState & state, const Pos & pos, Value * * args, V if (start < 0) throw EvalError({ .hint = hintfmt("negative start position in 'substring'"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); mkString(v, (unsigned int) start >= s.size() ? "" : string(s, start, len), context); @@ -1946,7 +1947,7 @@ static void prim_hashString(EvalState & state, const Pos & pos, Value * * args, if (!ht) throw Error({ .hint = hintfmt("unknown hash type '%1%'", type), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); PathSet context; // discarded @@ -1992,12 +1993,12 @@ void prim_match(EvalState & state, const Pos & pos, Value * * args, Value & v) // limit is _GLIBCXX_REGEX_STATE_LIMIT for libstdc++ throw EvalError({ .hint = hintfmt("memory limit exceeded by regular expression '%s'", re), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } else { throw EvalError({ .hint = hintfmt("invalid regular expression '%s'", re), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } } @@ -2065,12 +2066,12 @@ static void prim_split(EvalState & state, const Pos & pos, Value * * args, Value // limit is _GLIBCXX_REGEX_STATE_LIMIT for libstdc++ throw EvalError({ .hint = hintfmt("memory limit exceeded by regular expression '%s'", re), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } else { throw EvalError({ .hint = hintfmt("invalid regular expression '%s'", re), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } } @@ -2104,7 +2105,7 @@ static void prim_replaceStrings(EvalState & state, const Pos & pos, Value * * ar if (args[0]->listSize() != args[1]->listSize()) throw EvalError({ .hint = hintfmt("'from' and 'to' arguments to 'replaceStrings' have different lengths"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); vector<string> from; diff --git a/src/libexpr/primops/context.cc b/src/libexpr/primops/context.cc index 301e8c5dd..dbb93bae6 100644 --- a/src/libexpr/primops/context.cc +++ b/src/libexpr/primops/context.cc @@ -148,7 +148,7 @@ static void prim_appendContext(EvalState & state, const Pos & pos, Value * * arg if (!state.store->isStorePath(i.name)) throw EvalError({ .hint = hintfmt("Context key '%s' is not a store path", i.name), - .nixCode = NixCode { .errPos = *i.pos } + .errPos = *i.pos }); if (!settings.readOnlyMode) state.store->ensurePath(state.store->parseStorePath(i.name)); @@ -165,7 +165,7 @@ static void prim_appendContext(EvalState & state, const Pos & pos, Value * * arg if (!isDerivation(i.name)) { throw EvalError({ .hint = hintfmt("Tried to add all-outputs context of %s, which is not a derivation, to a string", i.name), - .nixCode = NixCode { .errPos = *i.pos } + .errPos = *i.pos }); } context.insert("=" + string(i.name)); @@ -178,7 +178,7 @@ static void prim_appendContext(EvalState & state, const Pos & pos, Value * * arg if (iter->value->listSize() && !isDerivation(i.name)) { throw EvalError({ .hint = hintfmt("Tried to add derivation output context of %s, which is not a derivation, to a string", i.name), - .nixCode = NixCode { .errPos = *i.pos } + .errPos = *i.pos }); } for (unsigned int n = 0; n < iter->value->listSize(); ++n) { diff --git a/src/libexpr/primops/fetchGit.cc b/src/libexpr/primops/fetchGit.cc index dd7229a3d..36b0db2bd 100644 --- a/src/libexpr/primops/fetchGit.cc +++ b/src/libexpr/primops/fetchGit.cc @@ -37,14 +37,14 @@ static void prim_fetchGit(EvalState & state, const Pos & pos, Value * * args, Va else throw EvalError({ .hint = hintfmt("unsupported argument '%s' to 'fetchGit'", attr.name), - .nixCode = NixCode { .errPos = *attr.pos } + .errPos = *attr.pos }); } if (url.empty()) throw EvalError({ .hint = hintfmt("'url' argument required"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } else diff --git a/src/libexpr/primops/fetchMercurial.cc b/src/libexpr/primops/fetchMercurial.cc index 9bace8f89..59166b777 100644 --- a/src/libexpr/primops/fetchMercurial.cc +++ b/src/libexpr/primops/fetchMercurial.cc @@ -40,14 +40,14 @@ static void prim_fetchMercurial(EvalState & state, const Pos & pos, Value * * ar else throw EvalError({ .hint = hintfmt("unsupported argument '%s' to 'fetchMercurial'", attr.name), - .nixCode = NixCode { .errPos = *attr.pos } + .errPos = *attr.pos }); } if (url.empty()) throw EvalError({ .hint = hintfmt("'url' argument required"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } else diff --git a/src/libexpr/primops/fetchTree.cc b/src/libexpr/primops/fetchTree.cc index d23d47592..f6d8cca44 100644 --- a/src/libexpr/primops/fetchTree.cc +++ b/src/libexpr/primops/fetchTree.cc @@ -68,7 +68,7 @@ static void prim_fetchTree(EvalState & state, const Pos & pos, Value * * args, V if (!attrs.count("type")) throw Error({ .hint = hintfmt("attribute 'type' is missing in call to 'fetchTree'"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); input = fetchers::inputFromAttrs(attrs); @@ -112,14 +112,14 @@ static void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v, else throw EvalError({ .hint = hintfmt("unsupported argument '%s' to '%s'", attr.name, who), - .nixCode = NixCode { .errPos = *attr.pos } + .errPos = *attr.pos }); } if (!url) throw EvalError({ .hint = hintfmt("'url' argument required"), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } else url = state.forceStringNoCtx(*args[0], pos); diff --git a/src/libexpr/primops/fromTOML.cc b/src/libexpr/primops/fromTOML.cc index 7615d1379..b00827a4b 100644 --- a/src/libexpr/primops/fromTOML.cc +++ b/src/libexpr/primops/fromTOML.cc @@ -83,7 +83,7 @@ static void prim_fromTOML(EvalState & state, const Pos & pos, Value * * args, Va } catch (std::runtime_error & e) { throw EvalError({ .hint = hintfmt("while parsing a TOML string: %s", e.what()), - .nixCode = NixCode { .errPos = pos } + .errPos = pos }); } } diff --git a/src/libmain/loggers.cc b/src/libmain/loggers.cc index c44bb6408..fa18f991d 100644 --- a/src/libmain/loggers.cc +++ b/src/libmain/loggers.cc @@ -26,7 +26,7 @@ Logger * makeDefaultLogger() { case LogFormat::rawWithLogs: return makeSimpleLogger(true); case LogFormat::internalJson: - return makeJSONLogger(*makeSimpleLogger()); + return makeJSONLogger(*makeSimpleLogger(true)); case LogFormat::bar: return makeProgressBar(); case LogFormat::barWithLogs: diff --git a/src/libmain/progress-bar.cc b/src/libmain/progress-bar.cc index 95a9187de..3f7d99a1d 100644 --- a/src/libmain/progress-bar.cc +++ b/src/libmain/progress-bar.cc @@ -131,7 +131,7 @@ public: auto state(state_.lock()); std::stringstream oss; - oss << ei; + showErrorInfo(oss, ei, loggerSettings.showTrace.get()); log(*state, ei.level, oss.str()); } diff --git a/src/libmain/shared.cc b/src/libmain/shared.cc index 1cb422967..52718c231 100644 --- a/src/libmain/shared.cc +++ b/src/libmain/shared.cc @@ -323,10 +323,8 @@ int handleExceptions(const string & programName, std::function<void()> fun) printError("Try '%1% --help' for more information.", programName); return 1; } catch (BaseError & e) { - if (settings.showTrace && e.prefix() != "") - printError(e.prefix()); logError(e.info()); - if (e.prefix() != "" && !settings.showTrace) + if (e.hasTrace() && !loggerSettings.showTrace.get()) printError("(use '--show-trace' to show detailed location information)"); return e.status; } catch (std::bad_alloc & e) { diff --git a/src/libstore/build.cc b/src/libstore/build.cc index a57055168..6970363b0 100644 --- a/src/libstore/build.cc +++ b/src/libstore/build.cc @@ -2041,7 +2041,10 @@ void DerivationGoal::startBuilder() if (!std::regex_match(fileName, regex)) throw Error("invalid file name '%s' in 'exportReferencesGraph'", fileName); - auto storePath = worker.store.parseStorePath(*i++); + auto storePathS = *i++; + if (!worker.store.isInStore(storePathS)) + throw BuildError("'exportReferencesGraph' contains a non-store path '%1%'", storePathS); + auto storePath = worker.store.parseStorePath(worker.store.toStorePath(storePathS)); /* Write closure info to <fileName>. */ writeFile(tmpDir + "/" + fileName, diff --git a/src/libstore/content-address.cc b/src/libstore/content-address.cc index 5ccb1a7b3..f83b98a98 100644 --- a/src/libstore/content-address.cc +++ b/src/libstore/content-address.cc @@ -82,4 +82,16 @@ std::string renderContentAddress(std::optional<ContentAddress> ca) { return ca ? renderContentAddress(*ca) : ""; } +Hash getContentAddressHash(const ContentAddress & ca) +{ + return std::visit(overloaded { + [](TextHash th) { + return th.hash; + }, + [](FixedOutputHash fsh) { + return fsh.hash; + } + }, ca); +} + } diff --git a/src/libstore/content-address.hh b/src/libstore/content-address.hh index ba4797f5b..22a039242 100644 --- a/src/libstore/content-address.hh +++ b/src/libstore/content-address.hh @@ -53,4 +53,6 @@ ContentAddress parseContentAddress(std::string_view rawCa); std::optional<ContentAddress> parseContentAddressOpt(std::string_view rawCaOpt); +Hash getContentAddressHash(const ContentAddress & ca); + } diff --git a/src/libstore/daemon.cc b/src/libstore/daemon.cc index c66b58251..bbbfc8e10 100644 --- a/src/libstore/daemon.cc +++ b/src/libstore/daemon.cc @@ -78,10 +78,10 @@ struct TunnelLogger : public Logger if (ei.level > verbosity) return; std::stringstream oss; - oss << ei; + showErrorInfo(oss, ei, false); StringSink buf; - buf << STDERR_NEXT << oss.str() << "\n"; // (fs.s + "\n"); + buf << STDERR_NEXT << oss.str(); enqueueMsg(*buf.s); } diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh index 2fbcafff8..4d5eec7bf 100644 --- a/src/libstore/globals.hh +++ b/src/libstore/globals.hh @@ -196,10 +196,6 @@ public: /* Whether to lock the Nix client and worker to the same CPU. */ bool lockCPU; - /* Whether to show a stack trace if Nix evaluation fails. */ - Setting<bool> showTrace{this, false, "show-trace", - "Whether to show a stack trace on evaluation errors."}; - Setting<SandboxMode> sandboxMode{this, #if __linux__ smEnabled @@ -369,6 +365,9 @@ public: Setting<bool> warnDirty{this, true, "warn-dirty", "Whether to warn about dirty Git/Mercurial trees."}; + + Setting<size_t> narBufferSize{this, 32 * 1024 * 1024, "nar-buffer-size", + "Maximum size of NARs before spilling them to disk."}; }; diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc index c9758f680..57c83412e 100644 --- a/src/libstore/local-store.cc +++ b/src/libstore/local-store.cc @@ -976,7 +976,7 @@ void LocalStore::addToStore(const ValidPathInfo & info, Source & source, PathLocks outputLock; - Path realPath = realStoreDir + "/" + std::string(info.path.to_string()); + auto realPath = Store::toRealPath(info.path); /* Lock the output path. But don't lock if we're being called from a build hook (whose parent process already acquired a @@ -1047,8 +1047,7 @@ StorePath LocalStore::addToStoreFromDump(const string & dump, const string & nam /* The first check above is an optimisation to prevent unnecessary lock acquisition. */ - Path realPath = realStoreDir + "/"; - realPath += dstPath.to_string(); + auto realPath = Store::toRealPath(dstPath); PathLocks outputLock({realPath}); @@ -1098,16 +1097,125 @@ StorePath LocalStore::addToStore(const string & name, const Path & _srcPath, { Path srcPath(absPath(_srcPath)); - /* Read the whole path into memory. This is not a very scalable - method for very large paths, but `copyPath' is mainly used for - small files. */ - StringSink sink; - if (method == FileIngestionMethod::Recursive) - dumpPath(srcPath, sink, filter); - else - sink.s = make_ref<std::string>(readFile(srcPath)); + /* For computing the NAR hash. */ + auto sha256Sink = std::make_unique<HashSink>(htSHA256); + + /* For computing the store path. In recursive SHA-256 mode, this + is the same as the NAR hash, so no need to do it again. */ + std::unique_ptr<HashSink> hashSink = + method == FileIngestionMethod::Recursive && hashAlgo == htSHA256 + ? nullptr + : std::make_unique<HashSink>(hashAlgo); + + /* Read the source path into memory, but only if it's up to + narBufferSize bytes. If it's larger, write it to a temporary + location in the Nix store. If the subsequently computed + destination store path is already valid, we just delete the + temporary path. Otherwise, we move it to the destination store + path. */ + bool inMemory = true; + std::string nar; + + auto source = sinkToSource([&](Sink & sink) { + + LambdaSink sink2([&](const unsigned char * buf, size_t len) { + (*sha256Sink)(buf, len); + if (hashSink) (*hashSink)(buf, len); + + if (inMemory) { + if (nar.size() + len > settings.narBufferSize) { + inMemory = false; + sink << 1; + sink((const unsigned char *) nar.data(), nar.size()); + nar.clear(); + } else { + nar.append((const char *) buf, len); + } + } + + if (!inMemory) sink(buf, len); + }); + + if (method == FileIngestionMethod::Recursive) + dumpPath(srcPath, sink2, filter); + else + readFile(srcPath, sink2); + }); + + std::unique_ptr<AutoDelete> delTempDir; + Path tempPath; + + try { + /* Wait for the source coroutine to give us some dummy + data. This is so that we don't create the temporary + directory if the NAR fits in memory. */ + readInt(*source); + + auto tempDir = createTempDir(realStoreDir, "add"); + delTempDir = std::make_unique<AutoDelete>(tempDir); + tempPath = tempDir + "/x"; + + if (method == FileIngestionMethod::Recursive) + restorePath(tempPath, *source); + else + writeFile(tempPath, *source); + + } catch (EndOfFile &) { + if (!inMemory) throw; + /* The NAR fits in memory, so we didn't do restorePath(). */ + } + + auto sha256 = sha256Sink->finish(); + + Hash hash = hashSink ? hashSink->finish().first : sha256.first; + + auto dstPath = makeFixedOutputPath(method, hash, name); + + addTempRoot(dstPath); + + if (repair || !isValidPath(dstPath)) { + + /* The first check above is an optimisation to prevent + unnecessary lock acquisition. */ + + auto realPath = Store::toRealPath(dstPath); - return addToStoreFromDump(*sink.s, name, method, hashAlgo, repair); + PathLocks outputLock({realPath}); + + if (repair || !isValidPath(dstPath)) { + + deletePath(realPath); + + autoGC(); + + if (inMemory) { + /* Restore from the NAR in memory. */ + StringSource source(nar); + if (method == FileIngestionMethod::Recursive) + restorePath(realPath, source); + else + writeFile(realPath, source); + } else { + /* Move the temporary path we restored above. */ + if (rename(tempPath.c_str(), realPath.c_str())) + throw Error("renaming '%s' to '%s'", tempPath, realPath); + } + + canonicalisePathMetaData(realPath, -1); // FIXME: merge into restorePath + + optimisePath(realPath); + + ValidPathInfo info(dstPath); + info.narHash = sha256.first; + info.narSize = sha256.second; + info.ca = FixedOutputHash { .method = method, .hash = hash }; + registerValidPath(info); + } + + outputLock.setDeletion(true); + } + + return dstPath; } @@ -1121,8 +1229,7 @@ StorePath LocalStore::addTextToStore(const string & name, const string & s, if (repair || !isValidPath(dstPath)) { - Path realPath = realStoreDir + "/"; - realPath += dstPath.to_string(); + auto realPath = Store::toRealPath(dstPath); PathLocks outputLock({realPath}); diff --git a/src/libstore/remote-store.cc b/src/libstore/remote-store.cc index 2b328ea77..0cec6ca65 100644 --- a/src/libstore/remote-store.cc +++ b/src/libstore/remote-store.cc @@ -8,6 +8,7 @@ #include "derivations.hh" #include "pool.hh" #include "finally.hh" +#include "logging.hh" #include <sys/types.h> #include <sys/stat.h> @@ -220,7 +221,7 @@ void RemoteStore::setOptions(Connection & conn) overrides.erase(settings.maxSilentTime.name); overrides.erase(settings.buildCores.name); overrides.erase(settings.useSubstitutes.name); - overrides.erase(settings.showTrace.name); + overrides.erase(loggerSettings.showTrace.name); conn.to << overrides.size(); for (auto & i : overrides) conn.to << i.first << i.second.value; diff --git a/src/libstore/store-api.cc b/src/libstore/store-api.cc index 0bfffbc36..f35e34aee 100644 --- a/src/libstore/store-api.cc +++ b/src/libstore/store-api.cc @@ -7,6 +7,7 @@ #include "json.hh" #include "derivations.hh" #include "url.hh" +#include "archive.hh" #include <future> @@ -221,6 +222,40 @@ StorePath Store::computeStorePathForText(const string & name, const string & s, } +ValidPathInfo Store::addToStoreSlow(std::string_view name, const Path & srcPath, + FileIngestionMethod method, HashType hashAlgo, + std::optional<Hash> expectedCAHash) +{ + /* FIXME: inefficient: we're reading/hashing 'tmpFile' three + times. */ + + auto [narHash, narSize] = hashPath(htSHA256, srcPath); + + auto hash = method == FileIngestionMethod::Recursive + ? hashAlgo == htSHA256 + ? narHash + : hashPath(hashAlgo, srcPath).first + : hashFile(hashAlgo, srcPath); + + if (expectedCAHash && expectedCAHash != hash) + throw Error("hash mismatch for '%s'", srcPath); + + ValidPathInfo info(makeFixedOutputPath(method, hash, name)); + info.narHash = narHash; + info.narSize = narSize; + info.ca = FixedOutputHash { .method = method, .hash = hash }; + + if (!isValidPath(info.path)) { + auto source = sinkToSource([&](Sink & sink) { + dumpPath(srcPath, sink); + }); + addToStore(info, *source); + } + + return info; +} + + Store::Store(const Params & params) : Config(params) , state({(size_t) pathInfoCacheSize}) diff --git a/src/libstore/store-api.hh b/src/libstore/store-api.hh index bb6198662..63e16e5d5 100644 --- a/src/libstore/store-api.hh +++ b/src/libstore/store-api.hh @@ -451,6 +451,13 @@ public: FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256, PathFilter & filter = defaultPathFilter, RepairFlag repair = NoRepair) = 0; + /* Copy the contents of a path to the store and register the + validity the resulting path, using a constant amount of + memory. */ + ValidPathInfo addToStoreSlow(std::string_view name, const Path & srcPath, + FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256, + std::optional<Hash> expectedCAHash = {}); + // FIXME: remove? virtual StorePath addToStoreFromDump(const string & dump, const string & name, FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256, RepairFlag repair = NoRepair) diff --git a/src/libutil/error.cc b/src/libutil/error.cc index 0fad9ae42..fd6f69b7f 100644 --- a/src/libutil/error.cc +++ b/src/libutil/error.cc @@ -7,14 +7,11 @@ namespace nix { - const std::string nativeSystem = SYSTEM; -// addPrefix is used for show-trace. Strings added with addPrefix -// will print ahead of the error itself. -BaseError & BaseError::addPrefix(const FormatOrString & fs) +BaseError & BaseError::addTrace(std::optional<ErrPos> e, hintformat hint) { - prefix_ = fs.s + prefix_; + err.traces.push_front(Trace { .pos = e, .hint = hint}); return *this; } @@ -28,7 +25,7 @@ const string& BaseError::calcWhat() const err.name = sname(); std::ostringstream oss; - oss << err; + showErrorInfo(oss, err, false); what_ = oss.str(); return *what_; @@ -56,28 +53,114 @@ string showErrPos(const ErrPos &errPos) } } -// if nixCode contains lines of code, print them to the ostream, indicating the error column. -void printCodeLines(std::ostream &out, const string &prefix, const NixCode &nixCode) +std::optional<LinesOfCode> getCodeLines(const ErrPos &errPos) +{ + if (errPos.line <= 0) + return std::nullopt; + + if (errPos.origin == foFile) { + LinesOfCode loc; + try { + AutoCloseFD fd = open(errPos.file.c_str(), O_RDONLY | O_CLOEXEC); + if (!fd) { + logError(SysError("opening file '%1%'", errPos.file).info()); + return std::nullopt; + } + else + { + // count the newlines. + int count = 0; + string line; + int pl = errPos.line - 1; + do + { + line = readLine(fd.get()); + ++count; + if (count < pl) + { + ; + } + else if (count == pl) { + loc.prevLineOfCode = line; + } else if (count == pl + 1) { + loc.errLineOfCode = line; + } else if (count == pl + 2) { + loc.nextLineOfCode = line; + break; + } + } while (true); + return loc; + } + } + catch (EndOfFile &eof) { + if (loc.errLineOfCode.has_value()) + return loc; + else + return std::nullopt; + } + catch (std::exception &e) { + printError("error reading nix file: %s\n%s", errPos.file, e.what()); + return std::nullopt; + } + } else { + std::istringstream iss(errPos.file); + // count the newlines. + int count = 0; + string line; + int pl = errPos.line - 1; + + LinesOfCode loc; + + do + { + std::getline(iss, line); + ++count; + if (count < pl) + { + ; + } + else if (count == pl) { + loc.prevLineOfCode = line; + } else if (count == pl + 1) { + loc.errLineOfCode = line; + } else if (count == pl + 2) { + loc.nextLineOfCode = line; + break; + } + + if (!iss.good()) + break; + } while (true); + + return loc; + } +} + +// print lines of code to the ostream, indicating the error column. +void printCodeLines(std::ostream &out, + const string &prefix, + const ErrPos &errPos, + const LinesOfCode &loc) { // previous line of code. - if (nixCode.prevLineOfCode.has_value()) { + if (loc.prevLineOfCode.has_value()) { out << std::endl << fmt("%1% %|2$5d|| %3%", - prefix, - (nixCode.errPos.line - 1), - *nixCode.prevLineOfCode); + prefix, + (errPos.line - 1), + *loc.prevLineOfCode); } - if (nixCode.errLineOfCode.has_value()) { + if (loc.errLineOfCode.has_value()) { // line of code containing the error. out << std::endl << fmt("%1% %|2$5d|| %3%", - prefix, - (nixCode.errPos.line), - *nixCode.errLineOfCode); + prefix, + (errPos.line), + *loc.errLineOfCode); // error arrows for the column range. - if (nixCode.errPos.column > 0) { - int start = nixCode.errPos.column; + if (errPos.column > 0) { + int start = errPos.column; std::string spaces; for (int i = 0; i < start; ++i) { spaces.append(" "); @@ -87,23 +170,49 @@ void printCodeLines(std::ostream &out, const string &prefix, const NixCode &nixC out << std::endl << fmt("%1% |%2%" ANSI_RED "%3%" ANSI_NORMAL, - prefix, - spaces, - arrows); + prefix, + spaces, + arrows); } } // next line of code. - if (nixCode.nextLineOfCode.has_value()) { + if (loc.nextLineOfCode.has_value()) { out << std::endl << fmt("%1% %|2$5d|| %3%", - prefix, - (nixCode.errPos.line + 1), - *nixCode.nextLineOfCode); + prefix, + (errPos.line + 1), + *loc.nextLineOfCode); } } -std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo) +void printAtPos(const string &prefix, const ErrPos &pos, std::ostream &out) +{ + if (pos) + { + switch (pos.origin) { + case foFile: { + out << prefix << ANSI_BLUE << "at: " << ANSI_YELLOW << showErrPos(pos) << + ANSI_BLUE << " in file: " << ANSI_NORMAL << pos.file; + break; + } + case foString: { + out << prefix << ANSI_BLUE << "at: " << ANSI_YELLOW << showErrPos(pos) << + ANSI_BLUE << " from string" << ANSI_NORMAL; + break; + } + case foStdin: { + out << prefix << ANSI_BLUE << "at: " << ANSI_YELLOW << showErrPos(pos) << + ANSI_BLUE << " from stdin" << ANSI_NORMAL; + break; + } + default: + throw Error("invalid FileOrigin in errPos"); + } + } +} + +std::ostream& showErrorInfo(std::ostream &out, const ErrorInfo &einfo, bool showTrace) { auto errwidth = std::max<size_t>(getWindowSize().second, 20); string prefix = ""; @@ -158,8 +267,12 @@ std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo) } } - auto ndl = prefix.length() + levelString.length() + 3 + einfo.name.length() + einfo.programName.value_or("").length(); - auto dashwidth = ndl > (errwidth - 3) ? 3 : errwidth - ndl; + auto ndl = prefix.length() + + filterANSIEscapes(levelString, true).length() + + 7 + + einfo.name.length() + + einfo.programName.value_or("").length(); + auto dashwidth = std::max<int>(errwidth - ndl, 3); std::string dashes(dashwidth, '-'); @@ -179,16 +292,9 @@ std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo) einfo.programName.value_or("")); bool nl = false; // intersperse newline between sections. - if (einfo.nixCode.has_value()) { - if (einfo.nixCode->errPos.file != "") { - // filename, line, column. - out << std::endl << fmt("%1%in file: " ANSI_BLUE "%2% %3%" ANSI_NORMAL, - prefix, - einfo.nixCode->errPos.file, - showErrPos(einfo.nixCode->errPos)); - } else { - out << std::endl << fmt("%1%from command line argument", prefix); - } + if (einfo.errPos.has_value() && (*einfo.errPos)) { + out << prefix << std::endl; + printAtPos(prefix, *einfo.errPos, out); nl = true; } @@ -200,12 +306,16 @@ std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo) nl = true; } - // lines of code. - if (einfo.nixCode.has_value() && einfo.nixCode->errLineOfCode.has_value()) { - if (nl) - out << std::endl << prefix; - printCodeLines(out, prefix, *einfo.nixCode); - nl = true; + if (einfo.errPos.has_value() && (*einfo.errPos)) { + auto loc = getCodeLines(*einfo.errPos); + + // lines of code. + if (loc.has_value()) { + if (nl) + out << std::endl << prefix; + printCodeLines(out, prefix, *einfo.errPos, *loc); + nl = true; + } } // hint @@ -216,6 +326,54 @@ std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo) nl = true; } + // traces + if (showTrace && !einfo.traces.empty()) + { + const string tracetitle(" show-trace "); + + int fill = errwidth - tracetitle.length(); + int lw = 0; + int rw = 0; + const int min_dashes = 3; + if (fill > min_dashes * 2) { + if (fill % 2 != 0) { + lw = fill / 2; + rw = lw + 1; + } + else + { + lw = rw = fill / 2; + } + } + else + lw = rw = min_dashes; + + if (nl) + out << std::endl << prefix; + + out << ANSI_BLUE << std::string(lw, '-') << tracetitle << std::string(rw, '-') << ANSI_NORMAL; + + for (auto iter = einfo.traces.rbegin(); iter != einfo.traces.rend(); ++iter) + { + out << std::endl << prefix; + out << ANSI_BLUE << "trace: " << ANSI_NORMAL << iter->hint.str(); + + if (iter->pos.has_value() && (*iter->pos)) { + auto pos = iter->pos.value(); + out << std::endl << prefix; + printAtPos(prefix, pos, out); + + auto loc = getCodeLines(pos); + if (loc.has_value()) + { + out << std::endl << prefix; + printCodeLines(out, prefix, pos, *loc); + out << std::endl << prefix; + } + } + } + } + return out; } } diff --git a/src/libutil/error.hh b/src/libutil/error.hh index 6982e30aa..f4b3f11bb 100644 --- a/src/libutil/error.hh +++ b/src/libutil/error.hh @@ -1,8 +1,8 @@ #pragma once - #include "ref.hh" #include "types.hh" +#include "fmt.hh" #include <cstring> #include <list> @@ -10,7 +10,9 @@ #include <map> #include <optional> -#include "fmt.hh" +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> /* Before 4.7, gcc's std::exception uses empty throw() specifiers for * its (virtual) destructor and what() in c++11 mode, in violation of spec @@ -25,20 +27,20 @@ namespace nix { /* -This file defines two main structs/classes used in nix error handling. + This file defines two main structs/classes used in nix error handling. -ErrorInfo provides a standard payload of error information, with conversion to string -happening in the logger rather than at the call site. + ErrorInfo provides a standard payload of error information, with conversion to string + happening in the logger rather than at the call site. -BaseError is the ancestor of nix specific exceptions (and Interrupted), and contains -an ErrorInfo. + BaseError is the ancestor of nix specific exceptions (and Interrupted), and contains + an ErrorInfo. -ErrorInfo structs are sent to the logger as part of an exception, or directly with the -logError or logWarning macros. + ErrorInfo structs are sent to the logger as part of an exception, or directly with the + logError or logWarning macros. -See the error-demo.cc program for usage examples. + See the error-demo.cc program for usage examples. -*/ + */ typedef enum { lvlError = 0, @@ -50,11 +52,25 @@ typedef enum { lvlVomit } Verbosity; +typedef enum { + foFile, + foStdin, + foString +} FileOrigin; + +// the lines of code surrounding an error. +struct LinesOfCode { + std::optional<string> prevLineOfCode; + std::optional<string> errLineOfCode; + std::optional<string> nextLineOfCode; +}; + // ErrPos indicates the location of an error in a nix file. struct ErrPos { int line = 0; int column = 0; string file; + FileOrigin origin; operator bool() const { @@ -65,6 +81,7 @@ struct ErrPos { template <class P> ErrPos& operator=(const P &pos) { + origin = pos.origin; line = pos.line; column = pos.column; // is file symbol null? @@ -82,11 +99,9 @@ struct ErrPos { } }; -struct NixCode { - ErrPos errPos; - std::optional<string> prevLineOfCode; - std::optional<string> errLineOfCode; - std::optional<string> nextLineOfCode; +struct Trace { + std::optional<ErrPos> pos; + hintformat hint; }; struct ErrorInfo { @@ -94,19 +109,19 @@ struct ErrorInfo { string name; string description; std::optional<hintformat> hint; - std::optional<NixCode> nixCode; + std::optional<ErrPos> errPos; + std::list<Trace> traces; static std::optional<string> programName; }; -std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo); +std::ostream& showErrorInfo(std::ostream &out, const ErrorInfo &einfo, bool showTrace); /* BaseError should generally not be caught, as it has Interrupted as a subclass. Catch Error instead. */ class BaseError : public std::exception { protected: - string prefix_; // used for location traces etc. mutable ErrorInfo err; mutable std::optional<string> what_; @@ -117,23 +132,23 @@ public: template<typename... Args> BaseError(unsigned int status, const Args & ... args) - : err { .level = lvlError, - .hint = hintfmt(args...) - } + : err {.level = lvlError, + .hint = hintfmt(args...) + } , status(status) { } template<typename... Args> BaseError(const std::string & fs, const Args & ... args) - : err { .level = lvlError, - .hint = hintfmt(fs, args...) - } + : err {.level = lvlError, + .hint = hintfmt(fs, args...) + } { } BaseError(hintformat hint) - : err { .level = lvlError, - .hint = hint - } + : err {.level = lvlError, + .hint = hint + } { } BaseError(ErrorInfo && e) @@ -154,10 +169,17 @@ public: #endif const string & msg() const { return calcWhat(); } - const string & prefix() const { return prefix_; } - BaseError & addPrefix(const FormatOrString & fs); - const ErrorInfo & info() { calcWhat(); return err; } + + template<typename... Args> + BaseError & addTrace(std::optional<ErrPos> e, const string &fs, const Args & ... args) + { + return addTrace(e, hintfmt(fs, args...)); + } + + BaseError & addTrace(std::optional<ErrPos> e, hintformat hint); + + bool hasTrace() const { return !err.traces.empty(); } }; #define MakeError(newClass, superClass) \ @@ -177,7 +199,7 @@ public: template<typename... Args> SysError(const Args & ... args) - :Error("") + : Error("") { errNo = errno; auto hf = hintfmt(args...); diff --git a/src/libutil/logging.cc b/src/libutil/logging.cc index 105fadb15..832aee783 100644 --- a/src/libutil/logging.cc +++ b/src/libutil/logging.cc @@ -1,5 +1,6 @@ #include "logging.hh" #include "util.hh" +#include "config.hh" #include <atomic> #include <nlohmann/json.hpp> @@ -7,6 +8,10 @@ namespace nix { +LoggerSettings loggerSettings; + +static GlobalConfig::Register r1(&loggerSettings); + static thread_local ActivityId curActivity = 0; ActivityId getCurActivity() @@ -72,7 +77,7 @@ public: void logEI(const ErrorInfo & ei) override { std::stringstream oss; - oss << ei; + showErrorInfo(oss, ei, loggerSettings.showTrace.get()); log(ei.level, oss.str()); } @@ -173,7 +178,7 @@ struct JSONLogger : Logger { void logEI(const ErrorInfo & ei) override { std::ostringstream oss; - oss << ei; + showErrorInfo(oss, ei, loggerSettings.showTrace.get()); nlohmann::json json; json["action"] = "msg"; diff --git a/src/libutil/logging.hh b/src/libutil/logging.hh index b1583eced..09619aac6 100644 --- a/src/libutil/logging.hh +++ b/src/libutil/logging.hh @@ -2,6 +2,7 @@ #include "types.hh" #include "error.hh" +#include "config.hh" namespace nix { @@ -34,6 +35,16 @@ typedef enum { typedef uint64_t ActivityId; +struct LoggerSettings : Config +{ + Setting<bool> showTrace{this, + false, + "show-trace", + "Whether to show a stack trace on evaluation errors."}; +}; + +extern LoggerSettings loggerSettings; + class Logger { friend struct Activity; diff --git a/src/libutil/tests/logging.cc b/src/libutil/tests/logging.cc index 6a58b9425..ad588055f 100644 --- a/src/libutil/tests/logging.cc +++ b/src/libutil/tests/logging.cc @@ -11,6 +11,13 @@ namespace nix { * logEI * --------------------------------------------------------------------------*/ + const char *test_file = + "previous line of code\n" + "this is the problem line of code\n" + "next line of code\n"; + const char *one_liner = + "this is the other problem line of code"; + TEST(logEI, catpuresBasicProperties) { MakeError(TestError, Error); @@ -137,7 +144,6 @@ namespace nix { * logError * --------------------------------------------------------------------------*/ - TEST(logError, logErrorWithoutHintOrCode) { testing::internal::CaptureStderr(); @@ -152,7 +158,7 @@ namespace nix { TEST(logError, logErrorWithPreviousAndNextLinesOfCode) { SymbolTable testTable; - auto problem_file = testTable.create("myfile.nix"); + auto problem_file = testTable.create(test_file); testing::internal::CaptureStderr(); @@ -162,21 +168,16 @@ namespace nix { .hint = hintfmt("this hint has %1% templated %2%!!", "yellow", "values"), - .nixCode = NixCode { - .errPos = Pos(problem_file, 40, 13), - .prevLineOfCode = "previous line of code", - .errLineOfCode = "this is the problem line of code", - .nextLineOfCode = "next line of code", - }}); - + .errPos = Pos(foString, problem_file, 02, 13), + }); auto str = testing::internal::GetCapturedStderr(); - ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- error name --- error-unit-test\x1B[0m\nin file: \x1B[34;1mmyfile.nix (40:13)\x1B[0m\n\nerror with code lines\n\n 39| previous line of code\n 40| this is the problem line of code\n | \x1B[31;1m^\x1B[0m\n 41| next line of code\n\nthis hint has \x1B[33;1myellow\x1B[0m templated \x1B[33;1mvalues\x1B[0m!!\n"); + ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- error name --- error-unit-test\x1B[0m\n\x1B[34;1mat: \x1B[33;1m(2:13)\x1B[34;1m from string\x1B[0m\n\nerror with code lines\n\n 1| previous line of code\n 2| this is the problem line of code\n | \x1B[31;1m^\x1B[0m\n 3| next line of code\n\nthis hint has \x1B[33;1myellow\x1B[0m templated \x1B[33;1mvalues\x1B[0m!!\n"); } - TEST(logError, logErrorWithoutLinesOfCode) { + TEST(logError, logErrorWithInvalidFile) { SymbolTable testTable; - auto problem_file = testTable.create("myfile.nix"); + auto problem_file = testTable.create("invalid filename"); testing::internal::CaptureStderr(); logError({ @@ -185,28 +186,23 @@ namespace nix { .hint = hintfmt("this hint has %1% templated %2%!!", "yellow", "values"), - .nixCode = NixCode { - .errPos = Pos(problem_file, 40, 13) - }}); + .errPos = Pos(foFile, problem_file, 02, 13) + }); auto str = testing::internal::GetCapturedStderr(); - ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- error name --- error-unit-test\x1B[0m\nin file: \x1B[34;1mmyfile.nix (40:13)\x1B[0m\n\nerror without any code lines.\n\nthis hint has \x1B[33;1myellow\x1B[0m templated \x1B[33;1mvalues\x1B[0m!!\n"); + ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- SysError --- error-unit-test\x1B[0m\nopening file '\x1B[33;1minvalid filename\x1B[0m': \x1B[33;1mNo such file or directory\x1B[0m\n\x1B[31;1merror:\x1B[0m\x1B[34;1m --- error name --- error-unit-test\x1B[0m\n\x1B[34;1mat: \x1B[33;1m(2:13)\x1B[34;1m in file: \x1B[0minvalid filename\n\nerror without any code lines.\n\nthis hint has \x1B[33;1myellow\x1B[0m templated \x1B[33;1mvalues\x1B[0m!!\n"); } TEST(logError, logErrorWithOnlyHintAndName) { - SymbolTable testTable; - auto problem_file = testTable.create("myfile.nix"); testing::internal::CaptureStderr(); logError({ .name = "error name", .hint = hintfmt("hint %1%", "only"), - .nixCode = NixCode { - .errPos = Pos(problem_file, 40, 13) - }}); + }); auto str = testing::internal::GetCapturedStderr(); - ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- error name --- error-unit-test\x1B[0m\nin file: \x1B[34;1mmyfile.nix (40:13)\x1B[0m\n\nhint \x1B[33;1monly\x1B[0m\n"); + ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- error name --- error-unit-test\x1B[0m\nhint \x1B[33;1monly\x1B[0m\n"); } @@ -219,18 +215,18 @@ namespace nix { logWarning({ .name = "name", - .description = "error description", + .description = "warning description", .hint = hintfmt("there was a %1%", "warning"), }); auto str = testing::internal::GetCapturedStderr(); - ASSERT_STREQ(str.c_str(), "\x1B[33;1mwarning:\x1B[0m\x1B[34;1m --- name --- error-unit-test\x1B[0m\nerror description\n\nthere was a \x1B[33;1mwarning\x1B[0m\n"); + ASSERT_STREQ(str.c_str(), "\x1B[33;1mwarning:\x1B[0m\x1B[34;1m --- name --- error-unit-test\x1B[0m\nwarning description\n\nthere was a \x1B[33;1mwarning\x1B[0m\n"); } TEST(logWarning, logWarningWithFileLineNumAndCode) { SymbolTable testTable; - auto problem_file = testTable.create("myfile.nix"); + auto problem_file = testTable.create(test_file); testing::internal::CaptureStderr(); @@ -240,18 +236,73 @@ namespace nix { .hint = hintfmt("this hint has %1% templated %2%!!", "yellow", "values"), - .nixCode = NixCode { - .errPos = Pos(problem_file, 40, 13), - .prevLineOfCode = std::nullopt, - .errLineOfCode = "this is the problem line of code", - .nextLineOfCode = std::nullopt - }}); + .errPos = Pos(foStdin, problem_file, 2, 13), + }); + + + auto str = testing::internal::GetCapturedStderr(); + ASSERT_STREQ(str.c_str(), "\x1B[33;1mwarning:\x1B[0m\x1B[34;1m --- warning name --- error-unit-test\x1B[0m\n\x1B[34;1mat: \x1B[33;1m(2:13)\x1B[34;1m from stdin\x1B[0m\n\nwarning description\n\n 1| previous line of code\n 2| this is the problem line of code\n | \x1B[31;1m^\x1B[0m\n 3| next line of code\n\nthis hint has \x1B[33;1myellow\x1B[0m templated \x1B[33;1mvalues\x1B[0m!!\n"); + } + + /* ---------------------------------------------------------------------------- + * traces + * --------------------------------------------------------------------------*/ + + TEST(addTrace, showTracesWithShowTrace) { + SymbolTable testTable; + auto problem_file = testTable.create(test_file); + auto oneliner_file = testTable.create(one_liner); + auto invalidfilename = testTable.create("invalid filename"); + + auto e = AssertionError(ErrorInfo { + .name = "wat", + .description = "show-traces", + .hint = hintfmt("it has been %1% days since our last error", "zero"), + .errPos = Pos(foString, problem_file, 2, 13), + }); + + e.addTrace(Pos(foStdin, oneliner_file, 1, 19), "while trying to compute %1%", 42); + e.addTrace(std::nullopt, "while doing something without a %1%", "pos"); + e.addTrace(Pos(foFile, invalidfilename, 100, 1), "missing %s", "nix file"); + + testing::internal::CaptureStderr(); + + loggerSettings.showTrace.assign(true); + + logError(e.info()); + + auto str = testing::internal::GetCapturedStderr(); + ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- SysError --- error-unit-test\x1B[0m\nopening file '\x1B[33;1minvalid filename\x1B[0m': \x1B[33;1mNo such file or directory\x1B[0m\n\x1B[31;1merror:\x1B[0m\x1B[34;1m --- AssertionError --- error-unit-test\x1B[0m\n\x1B[34;1mat: \x1B[33;1m(2:13)\x1B[34;1m from string\x1B[0m\n\nshow-traces\n\n 1| previous line of code\n 2| this is the problem line of code\n | \x1B[31;1m^\x1B[0m\n 3| next line of code\n\nit has been \x1B[33;1mzero\x1B[0m days since our last error\n\x1B[34;1m---- show-trace ----\x1B[0m\n\x1B[34;1mtrace: \x1B[0mwhile trying to compute \x1B[33;1m42\x1B[0m\n\x1B[34;1mat: \x1B[33;1m(1:19)\x1B[34;1m from stdin\x1B[0m\n\n 1| this is the other problem line of code\n | \x1B[31;1m^\x1B[0m\n\n\x1B[34;1mtrace: \x1B[0mwhile doing something without a \x1B[33;1mpos\x1B[0m\n\x1B[34;1mtrace: \x1B[0mmissing \x1B[33;1mnix file\x1B[0m\n\x1B[34;1mat: \x1B[33;1m(100:1)\x1B[34;1m in file: \x1B[0minvalid filename\n"); + } + TEST(addTrace, hideTracesWithoutShowTrace) { + SymbolTable testTable; + auto problem_file = testTable.create(test_file); + auto oneliner_file = testTable.create(one_liner); + auto invalidfilename = testTable.create("invalid filename"); + + auto e = AssertionError(ErrorInfo { + .name = "wat", + .description = "hide traces", + .hint = hintfmt("it has been %1% days since our last error", "zero"), + .errPos = Pos(foString, problem_file, 2, 13), + }); + + e.addTrace(Pos(foStdin, oneliner_file, 1, 19), "while trying to compute %1%", 42); + e.addTrace(std::nullopt, "while doing something without a %1%", "pos"); + e.addTrace(Pos(foFile, invalidfilename, 100, 1), "missing %s", "nix file"); + + testing::internal::CaptureStderr(); + + loggerSettings.showTrace.assign(false); + + logError(e.info()); auto str = testing::internal::GetCapturedStderr(); - ASSERT_STREQ(str.c_str(), "\x1B[33;1mwarning:\x1B[0m\x1B[34;1m --- warning name --- error-unit-test\x1B[0m\nin file: \x1B[34;1mmyfile.nix (40:13)\x1B[0m\n\nwarning description\n\n 40| this is the problem line of code\n | \x1B[31;1m^\x1B[0m\n\nthis hint has \x1B[33;1myellow\x1B[0m templated \x1B[33;1mvalues\x1B[0m!!\n"); + ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- AssertionError --- error-unit-test\x1B[0m\n\x1B[34;1mat: \x1B[33;1m(2:13)\x1B[34;1m from string\x1B[0m\n\nhide traces\n\n 1| previous line of code\n 2| this is the problem line of code\n | \x1B[31;1m^\x1B[0m\n 3| next line of code\n\nit has been \x1B[33;1mzero\x1B[0m days since our last error\n"); } + /* ---------------------------------------------------------------------------- * hintfmt * --------------------------------------------------------------------------*/ diff --git a/src/nix-env/nix-env.cc b/src/nix-env/nix-env.cc index 8b0692035..c992b7d74 100644 --- a/src/nix-env/nix-env.cc +++ b/src/nix-env/nix-env.cc @@ -593,7 +593,7 @@ static void upgradeDerivations(Globals & globals, } else newElems.push_back(i); } catch (Error & e) { - e.addPrefix(fmt("while trying to find an upgrade for '%s':\n", i.queryName())); + e.addTrace(std::nullopt, "while trying to find an upgrade for '%s'", i.queryName()); throw; } } @@ -1185,7 +1185,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs) } catch (AssertionError & e) { printMsg(lvlTalkative, "skipping derivation named '%1%' which gives an assertion failure", i.queryName()); } catch (Error & e) { - e.addPrefix(fmt("while querying the derivation named '%1%':\n", i.queryName())); + e.addTrace(std::nullopt, "while querying the derivation named '%1%'", i.queryName()); throw; } } diff --git a/src/nix-prefetch-url/nix-prefetch-url.cc b/src/nix-prefetch-url/nix-prefetch-url.cc index 22410c44c..65d8ec6b6 100644 --- a/src/nix-prefetch-url/nix-prefetch-url.cc +++ b/src/nix-prefetch-url/nix-prefetch-url.cc @@ -153,14 +153,15 @@ static int _main(int argc, char * * argv) /* If an expected hash is given, the file may already exist in the store. */ - Hash hash(ht), expectedHash(ht); + std::optional<Hash> expectedHash; + Hash hash(ht); std::optional<StorePath> storePath; if (args.size() == 2) { expectedHash = Hash(args[1], ht); const auto recursive = unpack ? FileIngestionMethod::Recursive : FileIngestionMethod::Flat; - storePath = store->makeFixedOutputPath(recursive, expectedHash, name); + storePath = store->makeFixedOutputPath(recursive, *expectedHash, name); if (store->isValidPath(*storePath)) - hash = expectedHash; + hash = *expectedHash; else storePath.reset(); } @@ -200,22 +201,12 @@ static int _main(int argc, char * * argv) tmpFile = unpacked; } - /* FIXME: inefficient; addToStore() will also hash - this. */ - hash = unpack ? hashPath(ht, tmpFile).first : hashFile(ht, tmpFile); + const auto method = unpack ? FileIngestionMethod::Recursive : FileIngestionMethod::Flat; - if (expectedHash != Hash(ht) && expectedHash != hash) - throw Error("hash mismatch for '%1%'", uri); - - const auto recursive = unpack ? FileIngestionMethod::Recursive : FileIngestionMethod::Flat; - - /* Copy the file to the Nix store. FIXME: if RemoteStore - implemented addToStoreFromDump() and downloadFile() - supported a sink, we could stream the download directly - into the Nix store. */ - storePath = store->addToStore(name, tmpFile, recursive, ht); - - assert(*storePath == store->makeFixedOutputPath(recursive, hash, name)); + auto info = store->addToStoreSlow(name, tmpFile, method, ht, expectedHash); + storePath = info.path; + assert(info.ca); + hash = getContentAddressHash(*info.ca); } stopProgressBar(); diff --git a/src/nix-store/nix-store.cc b/src/nix-store/nix-store.cc index ff04cbefc..b2a6e6f45 100644 --- a/src/nix-store/nix-store.cc +++ b/src/nix-store/nix-store.cc @@ -174,10 +174,10 @@ static void opAdd(Strings opFlags, Strings opArgs) store. */ static void opAddFixed(Strings opFlags, Strings opArgs) { - auto recursive = FileIngestionMethod::Flat; + auto method = FileIngestionMethod::Flat; for (auto & i : opFlags) - if (i == "--recursive") recursive = FileIngestionMethod::Recursive; + if (i == "--recursive") method = FileIngestionMethod::Recursive; else throw UsageError("unknown flag '%1%'", i); if (opArgs.empty()) @@ -187,7 +187,7 @@ static void opAddFixed(Strings opFlags, Strings opArgs) opArgs.pop_front(); for (auto & i : opArgs) - cout << fmt("%s\n", store->printStorePath(store->addToStore(std::string(baseNameOf(i)), i, recursive, hashAlgo))); + std::cout << fmt("%s\n", store->printStorePath(store->addToStoreSlow(baseNameOf(i), i, method, hashAlgo).path)); } diff --git a/src/nix/repl.cc b/src/nix/repl.cc index 617d49614..fdacf604b 100644 --- a/src/nix/repl.cc +++ b/src/nix/repl.cc @@ -211,12 +211,12 @@ void NixRepl::mainLoop(const std::vector<std::string> & files) // input without clearing the input so far. continue; } else { - printMsg(lvlError, error + "%1%%2%", (settings.showTrace ? e.prefix() : ""), e.msg()); + printMsg(lvlError, e.msg()); } } catch (Error & e) { - printMsg(lvlError, error + "%1%%2%", (settings.showTrace ? e.prefix() : ""), e.msg()); + printMsg(lvlError, e.msg()); } catch (Interrupted & e) { - printMsg(lvlError, error + "%1%%2%", (settings.showTrace ? e.prefix() : ""), e.msg()); + printMsg(lvlError, e.msg()); } // We handled the current input fully, so we should clear it diff --git a/src/nix/search.cc b/src/nix/search.cc index ba72c1e79..93c3f3f83 100644 --- a/src/nix/search.cc +++ b/src/nix/search.cc @@ -216,7 +216,7 @@ struct CmdSearch : SourceExprCommand, MixJSON } catch (AssertionError & e) { } catch (Error & e) { if (!toplevel) { - e.addPrefix(fmt("While evaluating the attribute '%s':\n", attrPath)); + e.addTrace(std::nullopt, "While evaluating the attribute '%s'", attrPath); throw; } } |