Read import paths from configuration file instead of hard coding them

README.md

@@ -95,17 +95,28 @@ containing a call tip for an overload of the given function.
 ##Clear server's autocomplete cache
 ```dcd-client --clearCache```
 
-##Specify server port
-```dcd-client -p4242```
-
 ##Add import search path
-```dcd-client -Ipath/to/imports```
-
-##Shut down the server
-```dcd-client --shutdown```
+Import paths can be added to the server without restarting it. To accomplish
+this, run the client with the -I option:
+	dcd-client -Ipath/to/imports
 
 #Server usage
+The server must be running for the DCD client to provide autocomplete information.
+In future versions the client may start the server if it is not running, but for
+now it must be started manually.
+
+## Configuration Files
+The server will attempt to read the file ```~/.config/dcd``` on startup.
+If it exists, each line of the file is interpreted as a path that should be
+searched when looking for module imports.
+
+##Shut down the server
+The server can be shut down by running the client with the correct option:
+	dcd-client --shutdown
+
 ## Import directories
-The ```-I``` option allows you to specify directories to be searched for modules
+Import directories can be specified on the command line at startup:
+	dcd-server -I/home/user/code/one -I/home/user/code/two
+
 ## Port number
-The ```--port``` or ```-p``` option lets you specify the port number that the server will listen on
+The ```--port``` or ```-p``` option lets you specify the port number that the server will listen on.

server.d

@@ -22,6 +22,9 @@ import std.socket;
 import std.stdio;
 import std.getopt;
 import std.algorithm;
+import std.path;
+import std.file;
+import std.array;
 
 import msgpack;
 
@@ -29,6 +32,9 @@ import messages;
 import autocomplete;
 import modulecache;
 
+// TODO: Portability would be nice...
+enum CONFIG_FILE_PATH = "~/.config/dcd";
+
 int main(string[] args)
 {
     ushort port = 9166;
@@ -46,13 +52,7 @@ int main(string[] args)
         return 1;
     }
 
-	// begin hack
-	importPaths ~= "/home/alaran/src/dcd";
-	importPaths ~= "/home/alaran/src/dscanner";
-	importPaths ~= "/usr/include/d2/core";
-	importPaths ~= "/usr/include/d2/phobos";
-	importPaths ~= "/usr/include/d2/druntime/import";
-	// end hack
+	importPaths ~= loadConfiguredImportDirs();
 
 	foreach (path; importPaths)
 		ModuleCache.addImportPath(path);
@@ -124,6 +124,20 @@ int main(string[] args)
 	return 0;
 }
 
+version(linux)
+{
+string[] loadConfiguredImportDirs()
+{
+	string fullPath = expandTilde(CONFIG_FILE_PATH);
+	if (!exists(fullPath))
+		return [];
+	File f = File(fullPath);
+	return f.byLine(KeepTerminator.no).map!(a => a.idup).filter!(a => a.exists()).array();
+}
+}
+else
+	static assert (false, "Only Linux is supported at the moment");
+
 void printHelp(string programName)
 {
     writefln(