* add mu_util_guess_mu_homedir and mu_util_guess_xapian_dir and use them

src/mu-config.c

@@ -27,32 +27,14 @@
 #include "mu-util.h"
 #include "mu-config.h"
 
-
-static gchar*
-guess_muhome (void)
-{
-	const char* home;
-
-	home = g_getenv ("HOME");
-	if (!home)
-		home = g_get_home_dir ();
-
-	if (!home)
-		MU_WRITE_LOG ("failed to determine homedir");
-	
-	return g_strdup_printf ("%s%c%s", home ? home : ".", G_DIR_SEPARATOR,
-				".mu");
-}
-
 static void
 set_group_mu_defaults (MuConfigOptions *opts)
 {
-	if (!opts->muhome)
-		opts->muhome = guess_muhome ();
-	
+	if (!opts->muhome) 
+		opts->muhome = mu_util_guess_mu_homedir ();
+
 	/* note: xpath is is *not* settable from the cmdline */
-	opts->xpath = g_strdup_printf ("%s%c%s", opts->muhome,G_DIR_SEPARATOR,
-				       MU_XAPIAN_DIR_NAME);
+	opts->xpath = mu_util_guess_xapian_dir (opts->muhome);
 }
 
 

src/mu-util.c

@@ -178,6 +178,36 @@ mu_util_guess_maildir (void)
 }
 
 
+gchar*
+mu_util_guess_mu_homedir (void)
+{
+	const char* home;
+
+	home = g_getenv ("HOME");
+	if (!home)
+		home = g_get_home_dir ();
+
+	if (!home)
+		MU_WRITE_LOG ("failed to determine homedir");
+	
+	return g_strdup_printf ("%s%c%s", home ? home : ".", G_DIR_SEPARATOR,
+				".mu");
+}
+
+
+gchar*
+mu_util_guess_xapian_dir (const char* muhome)
+{
+	gchar *homedir, *xdir;
+
+	homedir = muhome ? g_strdup(muhome) : mu_util_guess_mu_homedir ();
+	xdir	= g_strdup_printf ("%s%c%s", homedir, G_DIR_SEPARATOR,
+				   MU_XAPIAN_DIR_NAME);
+	g_free (homedir);
+
+	return xdir;
+}
+
 
 gboolean
 mu_util_create_dir_maybe (const gchar *path)

src/mu-util.h

@@ -51,6 +51,30 @@ char*       mu_util_dir_expand (const char* path) G_GNUC_WARN_UNUSED_RESULT;
 char*       mu_util_guess_maildir (void) G_GNUC_WARN_UNUSED_RESULT;
 
 
+/**
+ * guess the place of the mu homedir (typically, ~/.mu). Note, this
+ * directory does not necessarily exist. mu_util_check_dir can be use
+ * to check that
+ *  
+ * @return the guessed mu homedir, which needs to be freed with g_free
+ * when no longer needed.
+ */
+gchar* mu_util_guess_mu_homedir (void);
+
+
+/**
+ * guess the place of the xapian database (typically,
+ * ~/.mu/xapian/). Note, this directory does not necessarily
+ * exist. mu_util_check_dir can be use to check that
+ *
+ * @param muhome the mu home directory or NULL, in which the muhome
+ * directoy will be guessed as well
+ *  
+ * @return the guessed xapian dir, which needs to be freed with g_free
+ * when no longer needed.
+ */
+gchar* mu_util_guess_xapian_dir (const gchar *muhome);
+
 
 /**
  * if path exists, check that's a read/writeable dir; otherwise try to