Add a simple build tool

CHANGELOG.md

@@ -24,6 +24,7 @@ RABCDAsm v1.6 (2011.05.??)
    input file
  * Failure to decode a method body is now not a fatal error
  * Aggressively try to shorten double literals to their shortest representation
+ * The package can now be built using a simple, dedicated build tool
  * Documentation updates
 
 RABCDAsm v1.5 (2011.04.14)

README.md

@@ -50,20 +50,20 @@ Compiling from source
 
 RABCDAsm is written in the [D programming language, version 2][d2].
 
-Assuming you have [dmd][] and [git][] installed, compiling should be as
-straight-forward as:
+Assuming you have [git][] and a D2 compiler, such as [dmd][] or [gdc][]
+installed, compiling should be as straight-forward as:
 
     git clone git://github.com/CyberShadow/RABCDAsm.git
     cd RABCDAsm
-    dmd -O -inline rabcdasm abcfile asprogram disassembler autodata murmurhash2a
-    dmd -O -inline rabcasm  abcfile asprogram    assembler autodata murmurhash2a
-    dmd -O -inline abcexport     swffile zlibx
-    dmd -O -inline abcreplace    swffile zlibx
-    dmd -O -inline swfdecompress swffile zlibx
-    dmd -O -inline swf7zcompress swffile zlibx
+    dmd -run build_rabcdasm
+
+Substitute `dmd` with `gdmd` if you're using gdc. You can use the `DC` and
+`DCFLAGS` environment variables to override the detected compiler and default
+compilation flags (`-O -inline`).
 
   [d2]: http://www.digitalmars.com/d/2.0/
   [dmd]: http://www.digitalmars.com/d/download.html
+  [gdc]: http://bitbucket.org/goshawk/gdc/
   [git]: http://git-scm.com/
 
 Pre-compiled binaries

build_rabcdasm.d

@@ -0,0 +1,67 @@
+/*
+ *  Copyright (C) 2010 Vladimir Panteleev <vladimir@thecybershadow.net>
+ *  This file is part of RABCDAsm.
+ *
+ *  RABCDAsm is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  RABCDAsm is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with RABCDAsm.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+// A simple tool to build RABCDAsm in one command.
+// You can use the DC and DFLAGS environment variables to override the detected compiler and compilation flags.
+
+version(D_Version2)
+	{ /* All OK */ }
+else
+	static assert(false, "Unsupported D version.\nThis software requires a D2 ( http://www.digitalmars.com/d/2.0/ ) compiler to build.");
+
+version(DigitalMars)
+	const DEFAULT_COMPILER = "dmd";
+else
+	const DEFAULT_COMPILER = "gdmd";
+
+const DEFAULT_FLAGS = "-O -inline";
+
+import std.process;
+import std.string;
+
+string[][string] programs;
+
+static this()
+{
+	programs["rabcasm"      ] = ["abcfile", "asprogram",    "assembler", "autodata", "murmurhash2a"];
+	programs["rabcdasm"     ] = ["abcfile", "asprogram", "disassembler", "autodata", "murmurhash2a"];
+	programs["abcexport"    ] = ["swffile", "zlibx"];
+	programs["abcreplace"   ] = ["swffile", "zlibx"];
+	programs["swfdecompress"] = ["swffile", "zlibx"];
+	programs["swf7zcompress"] = ["swffile", "zlibx"];
+}
+
+int main()
+{
+	string compiler = getenv("DC");
+	if (compiler is null)
+		compiler = DEFAULT_COMPILER;
+
+	string flags = getenv("DCFLAGS");
+	if (flags is null)
+		flags = DEFAULT_FLAGS;
+
+	foreach (program, modules; programs)
+	{
+		int ret = system(format("%s %s %s %s", compiler, flags, program, join(modules, " ")));
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}