Improve framework

source/app.d

@@ -3,8 +3,9 @@ import core.stdc.stdlib;
 import std.conv;
 import std.exception;
 import std.format;
-import std.stdio;
 import std.getopt;
+import std.range;
+import std.stdio;
 import std.variant;
 
 import day1;
@@ -20,6 +21,10 @@ import dayutil;
 
 immutable string progName = "aoc-2020";
 
+version(Unix) {
+	extern(C) int isatty(int);
+}
+
 Variant function(int, File, bool, string[])[] programs = [
 	&day1.run,
 	&day2.run,
@@ -32,68 +37,118 @@ Variant function(int, File, bool, string[])[] programs = [
 	&day9.run,
 ];
 
-void printUsage(string name) {
-	printUsage(name, null);
-}
-
-void printUsage(string name, string message) {
-	stderr.writeln("USAGE: %s [DAY] [PART] <INPUT_FILE> ".format(name));
+void printUsage(string message = null) {
+	import core.runtime;
+	string name = Runtime.args[0];
+	stderr.writeln("USAGE: %s [OPTIONS...] DAY PART [INPUT_FILE] (to run a specific day)".format(name));
+	stderr.writeln("   OR: %s [OPTIONS...] all                   (to run each day)".format(name));
+	stderr.writeln();
 	stderr.writeln("       DAY             = int between 1 and 25 (inclusive), specifiying the day to run");
 	stderr.writeln("       PART            = int between 1 and 2  (inclusive), specifiying the part to run");
-	stderr.writeln("       INPUT_FILE = file to read from. '-' or missing implies stdin");
+	stderr.writeln("       INPUT_FILE      = file to read from. '-' for stdin. If not specified, use in/[DAY].txt");
+	stderr.writeln();
+	stderr.writeln("OPTIONS:");
+	stderr.writeln("       --bigboy, -B    = use bigboy challenges");
+	stderr.writeln("       --benchmark, -b = record time it took to execute ");
 	if (message != null) {
+		stderr.writeln();
 		stderr.writeln(message);
 	}
 	exit(-1);
 }
 
+File getDefaultFile(int day, bool bigboy) {
+	if (bigboy) {
+		return File("in/bigboy/%d.txt".format(day), "rb");
+	} else {
+		return File("in/%d.txt".format(day), "rb");
+	}
+}
+
 void main(string[] args) {
 	bool bigboy = false;
-	int day;
-	getopt(args,
-			"bigboy", "Execute the so-named 'biboy' variant of this exercise", &bigboy);
-	if (args.length < 3) {
-		printUsage(args[0]);
+	bool benchmark = false;
+
+	try {
+		auto opts = getopt(args,
+			"bigboy|B", &bigboy,
+			"benchmark|b", &benchmark);
+		if (opts.helpWanted) {
+			printUsage();
 		}
+	} catch (GetOptException e) {
+		printUsage(e.msg);
+	}
+	if (args.length < 2) {
+		printUsage();
+	}
+
+	bool runAll = false;
+	if (args[1] == "all") {
+		/+version(Posix) {
+			bool tty = cast(bool) isatty(stdout.fileNo);
+		} else {+/
+			bool tty = false;
+		//}
+		runAll = true;
+		writeln(tty);
+		writeln("STATUS\tDAY\tPART\tRESULT");
+		foreach (dayNo, day; programs.enumerate(1)) {
+			File file = getDefaultFile(dayNo, bigboy);
+			foreach(part; 1..3) {
+				if (tty) {
+					write("RUNNING\t%d\t%d\t...\r".format(dayNo, part));
+					stdout.flush();
+				}
+				Variant result = day(part, file, bigboy, []);
+				writeln("DONE   \t%d\t%d\t%s   ".format(dayNo, part, std.conv.to!string(result)));
+				file.rewind();
+			}
+		}
+	} else {
+		if (args.length < 3) {
+			printUsage();
+		}
+
+		int day;
 		try {
 			day = to!int(args[1]);
 		} catch (ConvException e) {
-		printUsage(args[0], "[day] is not an integer");
+			printUsage("DAY is not an integer");
 		}
 
 		if (day <= 0 || day > programs.length) {
-		printUsage(args[0], "[day] must be between 1 and %d".format(programs.length));
+			printUsage("DAY must be between 1 and %d".format(programs.length));
 		}
 
 		int part;
 		try {
 			part = to!int(args[2]);
 		} catch (ConvException e) {
-		printUsage(args[0], "[part] is not an integer");
+			printUsage("PART is not an integer");
 		}
 
 		File file;
 		try {
 			if (args.length < 4)  {
-			if (bigboy) {
-				file = File("in/bigboy/%d.txt".format(day), "rb");
-			} else {
-				file = File("in/%d.txt".format(day), "rb");
-			}
+				file = getDefaultFile(day, bigboy);
 			} else if(args[3] == "-") {
 				file = stdin;
 			} else {
 				file = File(args[3], "rb");
 			}
 		} catch (ErrnoException e) {
-		printUsage(args[0], "Error %d while opening input file: %s".format(e.errno, e.message));
-	}
+			printUsage("Error %d while opening input file: %s".format(e.errno, e.message));
 
+		}
 		try {
 			Variant result = programs[day - 1](part, file, bigboy, args[3..$]);
 			writeln(result);
 		} catch(ArgumentException e) {
-		printUsage(args[0], e.msg);
+			printUsage(e.msg);
+		} catch(Exception e) {
+			stderr.writeln("Fatal error occurred: " ~ e.msg);
+			exit(-1);
+		}
 	}
-
 }

source/day1.d

@@ -19,7 +19,8 @@ Variant run(int part, File input, bool bigboy, string[] args) {
 	   will make use of optimised implementations, in the case of contains(range, elem)
 	   it will use a binary search instead of a linear search */
 	auto numbers = input.byLineCopy.map!(a => to!int(a)).array.sort;
-	int target = bigboy ? 99920044 : 2020;
+	int target = 2020;
+	if(bigboy) target = 2020;
 
 	Variant solution = parts!int(part, 
 			() => part1(numbers, target), 

source/day3.d

@@ -10,7 +10,7 @@ import std.variant;
 import dayutil;
 
 Variant run(int part, File input, bool bigboy, string[] args) {
-	auto inputData = stdin.byLineCopy.array;
+	auto inputData = input.byLineCopy.array;
 	Variant count = parts!size_t(part,
 			() => inputData.countTrees1,
 			() => [[1,1], [3,1], [5,1], [7,1], [1,2]]