Fix #129

.gitmodules

@@ -2,3 +2,6 @@
 	path = libdparse
 	url = https://github.com/Hackerpilot/libdparse.git
 	branch = master
+[submodule "inifiled"]
+	path = inifiled
+	url = https://github.com/burner/inifiled.git

analysis/config.d

@@ -0,0 +1,59 @@
+//          Copyright Brian Schott (Hackerpilot) 2014.
+// Distributed under the Boost Software License, Version 1.0.
+//    (See accompanying file LICENSE_1_0.txt or copy at
+//          http://www.boost.org/LICENSE_1_0.txt)
+
+module analysis.config;
+
+import inifiled;
+
+StaticAnalysisConfig defaultStaticAnalysisConfig()
+{
+	StaticAnalysisConfig config;
+	foreach (mem; __traits(allMembers, StaticAnalysisConfig))
+		mixin ("config." ~ mem ~ " = true;");
+	return config;
+}
+
+@INI("Configurue which static analysis checks are enabled")
+struct StaticAnalysisConfig
+{
+	@INI("Check variable, class, struct, interface, union, and function names against the Phobos style guide")
+	bool style_check;
+
+	@INI("Check for array literals that cause unnecessary allocation")
+	bool enum_array_literal_check;
+
+	@INI("Check for poor exception handling practices")
+	bool exception_check;
+
+	@INI("Check for use of the deprecated 'delete' keyword")
+	bool delete_check;
+
+	@INI("Check for use of the deprecated floating point operators")
+	bool float_operator_check;
+
+	@INI("Check number literals for readability")
+	bool number_style_check;
+
+	@INI("Checks that opEquals, opCmp, toHash, and toString are either const, immutable, or inout.")
+	bool object_const_check;
+
+	@INI("Checks for .. expressions where the left side is larger than the right.")
+	bool backwards_range_check;
+
+	@INI("Checks for if statements whose 'then' block is the same as the 'else' block")
+	bool if_else_same_check;
+
+	@INI("Checks for some problems with constructors")
+	bool constructor_check;
+
+	@INI("Checks for unused variables and function parameters")
+	bool unused_variable_check;
+
+	@INI("Checks for duplicate attributes")
+	bool duplicate_attribute;
+
+	@INI("Checks that opEquals and toHash are both defined or neither are defined")
+	bool opequals_tohash_check;
+}

analysis/constructors.d

@@ -90,6 +90,9 @@ private:
 
 unittest
 {
+	import analysis.config;
+	StaticAnalysisConfig sac;
+	sac.constructor_check = true;
 	assertAnalyzerWarnings(q{
 		class Cat // [warn]: This class has a zero-argument constructor as well as a constructor with one default argument. This can be confusing.
 		{
@@ -102,7 +105,7 @@ unittest
 			this() {}
 			this(string name = "doggie") {} // [warn]: This struct constructor can never be called with its default argument.
 		}
-	}c, analysis.run.AnalyzerCheck.constructor_check);
+	}c, sac);
 
 	stderr.writeln("Unittest for ConstructorCheck passed.");
 }

analysis/del.d

@@ -1,4 +1,4 @@
-//          Copyright Brian Schott (Sir Alaran) 2014.
+//          Copyright Brian Schott (Hackerpilot) 2014.
 // Distributed under the Boost Software License, Version 1.0.
 //    (See accompanying file LICENSE_1_0.txt or copy at
 //          http://www.boost.org/LICENSE_1_0.txt)
@@ -32,6 +32,9 @@ class DeleteCheck : BaseAnalyzer
 
 unittest
 {
+	import analysis.config;
+	StaticAnalysisConfig sac;
+	sac.delete_check = true;
 	assertAnalyzerWarnings(q{
 		void testDelete()
 		{
@@ -41,7 +44,7 @@ unittest
 			auto a = new Class();
 			delete a; // [warn]: Avoid using the 'delete' keyword.
 		}
-	}c, analysis.run.AnalyzerCheck.delete_check);
+	}c, sac);
 
 	stderr.writeln("Unittest for DeleteCheck passed.");
 }

analysis/duplicate_attribute.d

@@ -160,6 +160,9 @@ class DuplicateAttributeCheck : BaseAnalyzer
 
 unittest
 {
+	import analysis.config;
+	StaticAnalysisConfig sac;
+	sac.duplicate_attribute = true;
 	assertAnalyzerWarnings(q{
 		class ExampleAttributes
 		{
@@ -222,7 +225,7 @@ unittest
 				return false;
 			}
 		}
-	}c, analysis.run.AnalyzerCheck.duplicate_attribute);
+	}c, sac);
 
 	stderr.writeln("Unittest for DuplicateAttributeCheck passed.");
 }

analysis/fish.d

@@ -42,6 +42,9 @@ class FloatOperatorCheck : BaseAnalyzer
 
 unittest
 {
+	import analysis.config;
+	StaticAnalysisConfig sac;
+	sac.float_operator_check = true;
 	assertAnalyzerWarnings(q{
 		void testFish()
 		{
@@ -56,7 +59,7 @@ unittest
 			a = z !< z; // [warn]: Avoid using the deprecated floating-point operators.
 			a = z !<= z; // [warn]: Avoid using the deprecated floating-point operators.
 		}
-	}c, analysis.run.AnalyzerCheck.float_operator_check);
+	}c, sac);
 
 	stderr.writeln("Unittest for FloatOperatorCheck passed.");
 }

analysis/helpers.d

@@ -10,10 +10,11 @@ import std.traits;
 import std.stdio;
 
 import std.d.ast;
+import analysis.config;
 import analysis.run;
 
 
-S between(S)(S value, S before, S after) 
+S between(S)(S value, S before, S after)
 	if (isSomeString!S)
 {
 	return value.after(before).before(after);
@@ -48,12 +49,12 @@ S after(S)(S value, S separator)
  * and make sure they match the warnings in the comments. Warnings are
  * marked like so: // [warn]: Failed to do somethings.
  */
-void assertAnalyzerWarnings(string code, analysis.run.AnalyzerCheck analyzers, string file=__FILE__, size_t line=__LINE__)
+void assertAnalyzerWarnings(string code, StaticAnalysisConfig config, string file=__FILE__, size_t line=__LINE__)
 {
 	import analysis.run;
 
 	// Run the code and get any warnings
-	string[] rawWarnings = analyze("test", cast(ubyte[]) code, analyzers);
+	string[] rawWarnings = analyze("test", cast(ubyte[]) code, config);
 	string[] codeLines = code.split("\n");
 
 	// Get the warnings ordered by line

analysis/ifelsesame.d

@@ -48,6 +48,9 @@ class IfElseSameCheck : BaseAnalyzer
 
 unittest
 {
+	import analysis.config;
+	StaticAnalysisConfig sac;
+	sac.if_else_same_check = true;
 	assertAnalyzerWarnings(q{
 		void testSizeT()
 		{
@@ -62,7 +65,7 @@ unittest
 			else
 				person = "bobby"; // not same
 		}
-	}c, analysis.run.AnalyzerCheck.if_else_same_check);
+	}c, sac);
 	stderr.writeln("Unittest for IfElseSameCheck passed.");
 }
 

analysis/numbers.d

@@ -42,6 +42,9 @@ class NumberStyleCheck : BaseAnalyzer
 
 unittest
 {
+	import analysis.config;
+	StaticAnalysisConfig sac;
+	sac.number_style_check = true;
 	assertAnalyzerWarnings(q{
 		void testNumbers()
 		{
@@ -54,7 +57,7 @@ unittest
 			a = 100000; // [warn]: Use underscores to improve number constant readability.
 			a = 1000000; // [warn]: Use underscores to improve number constant readability.
 		}
-	}c, analysis.run.AnalyzerCheck.number_style_check);
+	}c, sac);
 
 	stderr.writeln("Unittest for NumberStyleCheck passed.");
 }

analysis/objectconst.d

@@ -71,6 +71,9 @@ class ObjectConstCheck : BaseAnalyzer
 
 unittest
 {
+	import analysis.config;
+	StaticAnalysisConfig sac;
+	sac.object_const_check = true;
 	assertAnalyzerWarnings(q{
 		void testConsts()
 		{
@@ -122,7 +125,7 @@ unittest
 				}
 			}
 		}
-	}c, analysis.run.AnalyzerCheck.object_const_check);
+	}c, sac);
 
 	stderr.writeln("Unittest for ObjectConstCheck passed.");
 }

analysis/opequals_without_tohash.d

@@ -80,6 +80,9 @@ class OpEqualsWithoutToHashCheck : BaseAnalyzer
 
 unittest
 {
+	import analysis.config;
+	StaticAnalysisConfig sac;
+	sac.opequals_tohash_check = true;
 	assertAnalyzerWarnings(q{
 		// Success because it has opEquals and toHash
 		class Chimp
@@ -130,7 +133,7 @@ unittest
 				return 0;
 			}
 		}
-	}c, analysis.run.AnalyzerCheck.opequals_tohash_check);
+	}c, sac);
 
 	stderr.writeln("Unittest for OpEqualsWithoutToHashCheck passed.");
 }

analysis/pokemon.d

@@ -66,6 +66,9 @@ class PokemonExceptionCheck : BaseAnalyzer
 
 unittest
 {
+	import analysis.config;
+	StaticAnalysisConfig sac;
+	sac.exception_check = true;
 	assertAnalyzerWarnings(q{
 		void testCatch()
 		{
@@ -93,7 +96,7 @@ unittest
 			{
 			}
 		}
-	}c, analysis.run.AnalyzerCheck.exception_check);
+	}c, sac);
 
 	stderr.writeln("Unittest for PokemonExceptionCheck passed.");
 }

analysis/range.d

@@ -131,6 +131,9 @@ class BackwardsRangeCheck : BaseAnalyzer
 
 unittest
 {
+	import analysis.config;
+	StaticAnalysisConfig sac;
+	sac.backwards_range_check = true;
 	assertAnalyzerWarnings(q{
 		void testRange()
 		{
@@ -142,7 +145,7 @@ unittest
 			foreach (n; 1 .. 3) { } // ok
 			foreach (n; 3 .. 1) { } // [warn]: 3 is larger than 1. Did you mean to use 'foreach_reverse( ... ; 1 .. 3)'?
 		}
-	}c, analysis.run.AnalyzerCheck.backwards_range_check);
+	}c, sac);
 
 	stderr.writeln("Unittest for BackwardsRangeCheck passed.");
 }

analysis/run.d

@@ -10,6 +10,7 @@ import std.d.lexer;
 import std.d.parser;
 import std.d.ast;
 
+import analysis.config;
 import analysis.base;
 import analysis.style;
 import analysis.enumarrayliteral;
@@ -25,25 +26,6 @@ import analysis.unused;
 import analysis.duplicate_attribute;
 import analysis.opequals_without_tohash;
 
-enum AnalyzerCheck : uint
-{
-	none =                     0b00000000_00000000,
-	style_check =              0b00000000_00000001,
-	enum_array_literal_check = 0b00000000_00000010,
-	exception_check =          0b00000000_00000100,
-	delete_check =             0b00000000_00001000,
-	float_operator_check =     0b00000000_00010000,
-	number_style_check =       0b00000000_00100000,
-	object_const_check =       0b00000000_01000000,
-	backwards_range_check =    0b00000000_10000000,
-	if_else_same_check =       0b00000001_00000000,
-	constructor_check =        0b00000010_00000000,
-	unused_variable_check =    0b00000100_00000000,
-	duplicate_attribute =      0b00001000_00000000,
-	opequals_tohash_check   =  0b00010000_00000000,
-	all =                      0b11111111_11111111
-}
-
 void messageFunction(string fileName, size_t line, size_t column, string message,
 	bool isError)
 {
@@ -53,11 +35,12 @@ void messageFunction(string fileName, size_t line, size_t column, string message
 
 void syntaxCheck(File output, string[] fileNames)
 {
-	analyze(output, fileNames, AnalyzerCheck.all, false);
+	StaticAnalysisConfig config = defaultStaticAnalysisConfig();
+	analyze(output, fileNames, config, false);
 }
 
 // For multiple files
-void analyze(File output, string[] fileNames, AnalyzerCheck analyzers, bool staticAnalyze = true)
+void analyze(File output, string[] fileNames, StaticAnalysisConfig config, bool staticAnalyze = true)
 {
 	foreach (fileName; fileNames)
 	{
@@ -66,14 +49,14 @@ void analyze(File output, string[] fileNames, AnalyzerCheck analyzers, bool stat
 		auto code = uninitializedArray!(ubyte[])(to!size_t(f.size));
 		f.rawRead(code);
 
-		string[] results = analyze(fileName, code, analyzers, staticAnalyze);
+		string[] results = analyze(fileName, code, config, staticAnalyze);
 		if (results.length > 0)
 			output.writeln(results.join("\n"));
 	}
 }
 
 // For a string
-string[] analyze(string fileName, ubyte[] code, AnalyzerCheck analyzers, bool staticAnalyze = true)
+string[] analyze(string fileName, ubyte[] code, StaticAnalysisConfig analysisConfig, bool staticAnalyze = true)
 {
 	import std.parallelism;
 
@@ -98,19 +81,19 @@ string[] analyze(string fileName, ubyte[] code, AnalyzerCheck analyzers, bool st
 
 	BaseAnalyzer[] checks;
 
-	if (analyzers & AnalyzerCheck.style_check) checks ~= new StyleChecker(fileName);
+	if (analysisConfig.style_check) checks ~= new StyleChecker(fileName);
-	if (analyzers & AnalyzerCheck.enum_array_literal_check) checks ~= new EnumArrayLiteralCheck(fileName);
+	if (analysisConfig.enum_array_literal_check) checks ~= new EnumArrayLiteralCheck(fileName);
-	if (analyzers & AnalyzerCheck.exception_check) checks ~= new PokemonExceptionCheck(fileName);
+	if (analysisConfig.exception_check) checks ~= new PokemonExceptionCheck(fileName);
-	if (analyzers & AnalyzerCheck.delete_check) checks ~= new DeleteCheck(fileName);
+	if (analysisConfig.delete_check) checks ~= new DeleteCheck(fileName);
-	if (analyzers & AnalyzerCheck.float_operator_check) checks ~= new FloatOperatorCheck(fileName);
+	if (analysisConfig.float_operator_check) checks ~= new FloatOperatorCheck(fileName);
-	if (analyzers & AnalyzerCheck.number_style_check) checks ~= new NumberStyleCheck(fileName);
+	if (analysisConfig.number_style_check) checks ~= new NumberStyleCheck(fileName);
-	if (analyzers & AnalyzerCheck.object_const_check) checks ~= new ObjectConstCheck(fileName);
+	if (analysisConfig.object_const_check) checks ~= new ObjectConstCheck(fileName);
-	if (analyzers & AnalyzerCheck.backwards_range_check) checks ~= new BackwardsRangeCheck(fileName);
+	if (analysisConfig.backwards_range_check) checks ~= new BackwardsRangeCheck(fileName);
-	if (analyzers & AnalyzerCheck.if_else_same_check) checks ~= new IfElseSameCheck(fileName);
+	if (analysisConfig.if_else_same_check) checks ~= new IfElseSameCheck(fileName);
-	if (analyzers & AnalyzerCheck.constructor_check) checks ~= new ConstructorCheck(fileName);
+	if (analysisConfig.constructor_check) checks ~= new ConstructorCheck(fileName);
-	if (analyzers & AnalyzerCheck.unused_variable_check) checks ~= new UnusedVariableCheck(fileName);
+	if (analysisConfig.unused_variable_check) checks ~= new UnusedVariableCheck(fileName);
-	if (analyzers & AnalyzerCheck.duplicate_attribute) checks ~= new DuplicateAttributeCheck(fileName);
+	if (analysisConfig.duplicate_attribute) checks ~= new DuplicateAttributeCheck(fileName);
-	if (analyzers & AnalyzerCheck.opequals_tohash_check) checks ~= new OpEqualsWithoutToHashCheck(fileName);
+	if (analysisConfig.opequals_tohash_check) checks ~= new OpEqualsWithoutToHashCheck(fileName);
 
 	foreach (check; checks)
 	{

analysis/style.d

@@ -93,6 +93,10 @@ class StyleChecker : BaseAnalyzer
 
 unittest
 {
+	import analysis.config;
+	StaticAnalysisConfig sac;
+	sac.style_check = true;
+
 	assertAnalyzerWarnings(q{
 		module AMODULE; // [warn]: Module/package name 'AMODULE' does not match style guidelines.
 
@@ -105,7 +109,7 @@ unittest
 		interface puma {} // [warn]: Interface name 'puma' does not match style guidelines.
 		struct dog {} // [warn]: Struct name 'dog' does not match style guidelines.
 		enum racoon {} // [warn]: Enum name 'racoon' does not match style guidelines.
-	}c, analysis.run.AnalyzerCheck.style_check);
+	}c, sac);
 
 	stderr.writeln("Unittest for StyleChecker passed.");
 }

build.bat

@@ -1,17 +1,19 @@
 @echo off
 setlocal enabledelayedexpansion
 
-set DFLAGS=-version=DIP61 -O -release -inline
+set DFLAGS=-O -release -inline
 set CORE=
 set STD=
 set STDD=
 set ANALYSIS=
+set INIFILED=
 
 for %%x in (*.d) do set CORE=!CORE! %%x
 for %%x in (std/*.d) do set STD=!STD! std/%%x
 for %%x in (std/d/*.d) do set STDD=!STDD! std/d/%%x
 for %%x in (analysis/*.d) do set ANALYSIS=!ANALYSIS! analysis/%%x
+for %%x in (inifiled/source/*.d) do set INIFILED=!INIFILED! inifiled/source/%%x
 
 @echo on
-dmd %CORE% %STD% %STDD% %ANALYSIS% %DFLAGS% -ofdscanner.exe
+dmd %CORE% %STD% %STDD% %ANALYSIS% %INIFILED% %DFLAGS% -ofdscanner.exe
 

inifiled

@@ -0,0 +1 @@
+Subproject commit 256db3c28db9e3824b7ed5f646964c19f37dd32d

libdparse

@@ -1 +1 @@
-Subproject commit d9387eb3b275295cd0263bdc273c4b0b63f29f98
+Subproject commit 4b95000c560b945ed8d426553c4d71849875cc92

main.d

@@ -24,6 +24,9 @@ import astprinter;
 import imports;
 import outliner;
 import analysis.run;
+import analysis.config;
+
+import inifiled;
 
 int main(string[] args)
 {
@@ -52,6 +55,7 @@ int run(string[] args)
 	bool outline;
 	bool tokenDump;
 	bool styleCheck;
+	bool defaultConfig;
 
 	try
 	{
@@ -60,7 +64,7 @@ int run(string[] args)
 			"tokenCount|t", &tokenCount, "syntaxCheck|s", &syntaxCheck,
 			"ast|xml", &ast, "imports|i", &imports, "outline|o", &outline,
 			"tokenDump", &tokenDump, "styleCheck", &styleCheck,
-			"muffinButton", &muffin);
+			"defaultConfig", &defaultConfig, "muffinButton", &muffin);
 	}
 	catch (ConvException e)
 	{
@@ -90,7 +94,7 @@ int run(string[] args)
 	}
 
 	auto optionCount = count!"a"([sloc, highlight, ctags, tokenCount,
-		syntaxCheck, ast, imports, outline, tokenDump, styleCheck]);
+		syntaxCheck, ast, imports, outline, tokenDump, styleCheck, defaultConfig]);
 	if (optionCount > 1)
 	{
 		stderr.writeln("Too many options specified");
@@ -103,8 +107,14 @@ int run(string[] args)
 	}
 
 	StringCache cache = StringCache(StringCache.defaultBucketCount);
-
+	if (defaultConfig)
-	if (tokenDump || highlight)
+	{
+		string s = getConfigurationLocation();
+		StaticAnalysisConfig saConfig = defaultStaticAnalysisConfig();
+		writeln("Writing default config file to ", s);
+		writeINIFile(saConfig, s);
+	}
+	else if (tokenDump || highlight)
 	{
 		bool usingStdin = args.length == 1;
 		ubyte[] bytes = usingStdin ? readStdin() : readFile(args[1]);
@@ -133,7 +143,11 @@ int run(string[] args)
 	}
 	else if (styleCheck)
 	{
-		stdout.analyze(expandArgs(args, recursive), AnalyzerCheck.all);
+		StaticAnalysisConfig config = defaultStaticAnalysisConfig();
+		string s = getConfigurationLocation();
+		if (s.exists())
+			readINIFile(config, s);
+		stdout.analyze(expandArgs(args, recursive), config);
 	}
 	else if (syntaxCheck)
 	{
@@ -171,7 +185,25 @@ int run(string[] args)
 				writefln("total:\t%d", count);
 			}
 		}
-		else if (imports || ast || outline)
+		else if (imports)
+		{
+			string[] fileNames = usingStdin ? ["stdin"] : args[1 .. $];
+			LexerConfig config;
+			config.stringBehavior = StringBehavior.source;
+			auto visitor = new ImportPrinter;
+			foreach (name; fileNames)
+			{
+				config.fileName = name;
+				auto tokens = getTokensForParser(
+					usingStdin ? readStdin() : readFile(name),
+					config, &cache);
+				auto mod = parseModule(tokens, name, null, &doNothing);
+				visitor.visit(mod);
+			}
+			foreach (imp; visitor.imports[])
+				writeln(imp);
+		}
+		else if (ast || outline)
 		{
 			string fileName = usingStdin ? "stdin" : args[1];
 			LexerConfig config;
@@ -187,14 +219,8 @@ int run(string[] args)
 //					token.text !is null, token.index, token.line, token.column, token.type, token.comment);
 //			}
 			auto mod = parseModule(tokens, fileName, null, &doNothing);
-			if (imports)
+
-			{
+			if (ast)
-				auto visitor = new ImportPrinter;
-				visitor.visit(mod);
-				foreach (imp; visitor.imports[])
-					writeln(imp);
-			}
-			else if (ast)
 			{
 				auto printer = new XMLPrinter;
 				printer.output = stdout;
@@ -294,7 +320,7 @@ options:
 
     --styleCheck [sourceFiles]
         Lexes and parses sourceFiles, printing the line and column number of any
-        style guideline violations to stdout.
+        static analysis check failures stdout.
 
     --ctags | -c sourceFile
         Generates ctags information from the given source code file. Note that
@@ -308,8 +334,45 @@ options:
     --recursive | -R | -r
         When used with --ctags, --tokenCount, or --sloc, dscanner will produce
         ctags output for all .d and .di files contained within the given
-        directories and its sub-directories.`,
+        directories and its sub-directories.
+
+    --defaultConfig
+        Generates a default configuration file for the static analysis checks`,
         programName);
 }
 
 void doNothing(string, size_t, size_t, string, bool) {}
+
+enum CONFIG_FILE_NAME = "dscanner.ini";
+version(linux) version = useXDG;
+version(BSD) version = useXDG;
+version(FreeBSD) version = useXDG;
+version(OSX) version = useXDG;
+
+/**
+ * Locates the configuration file
+ */
+string getConfigurationLocation()
+{
+	version (useXDG)
+	{
+		import std.process;
+		string configDir = environment.get("XDG_CONFIG_HOME", null);
+		if (configDir is null)
+		{
+			configDir = environment.get("HOME", null);
+			if (configDir is null)
+				throw new Exception("Both $XDG_CONFIG_HOME and $HOME are unset");
+			configDir = buildPath(configDir, ".config", "dscanner", CONFIG_FILE_NAME);
+		}
+		else
+		{
+			configDir = buildPath(configDir, "dscanner", CONFIG_FILE_NAME);
+		}
+		return configDir;
+	}
+	else version(Windows)
+	{
+		return CONFIG_FILE_NAME;
+	}
+}

makefile

@@ -12,9 +12,10 @@ SRC = main.d\
 	outliner.d\
 	libdparse/src/std/*.d\
 	libdparse/src/std/d/*.d\
-	analysis/*.d
+	analysis/*.d\
+	inifiled/source/*.d
 INCLUDE_PATHS = -Ilibdparse/src
-VERSIONS = -version=DIP61
+VERSIONS =
 
 all: dmdbuild
 

test.sh

@@ -9,12 +9,11 @@ dmd\
 	highlighter.d\
 	ctags.d\
 	astprinter.d\
-	formatter.d\
 	outliner.d\
-	std/*.d\
+	libdparse/src/std/*.d\
-	std/d/*.d\
+	libdparse/src/std/d/*.d\
+	inifiled/source/*.d\
 	analysis/*.d\
-	-version=DIP61\
 	-oftest\
 	-g -unittest