accept multiple --portage-trees while generating cache

Signed-off-by: zongyu <zzy2529420793@gmail.com>

4 files changed, 23 insertions, 18 deletions

diff --git a/src/main/java/org/gentoo/java/ebuilder/Config.java b/src/main/java/org/gentoo/java/ebuilder/Config.java
index 4502ab3..e9396ca 100644
--- a/src/main/java/org/gentoo/java/ebuilder/Config.java
+++ b/src/main/java/org/gentoo/java/ebuilder/Config.java
@@ -88,7 +88,7 @@ public class Config {
     /**
      * Path to portage tree.
      */
-    private Path portageTree;
+    private SortedSet<Path> portageTree = new TreeSet<>();
     /**
      * Whether ebuild cache should be refreshed.
      */
@@ -365,17 +365,17 @@ public class Config {
      *
      * @return {@link #portageTree}
      */
-    public Path getPortageTree() {
+    public SortedSet<Path> getPortageTree() {
         return portageTree;
     }
 
     /**
-     * Setter for {@link #portageTree}.
+     * Add portageTrees to {@link #portageTree}.
      *
      * @param portageTree {@link #portageTree}
      */
-    public void setPortageTree(final Path portageTree) {
-        this.portageTree = portageTree;
+    public void addPortageTree(final Path portageTree) {
+        this.portageTree.add(portageTree);
     }
 
     /**
diff --git a/src/main/java/org/gentoo/java/ebuilder/Main.java b/src/main/java/org/gentoo/java/ebuilder/Main.java
index 999f741..6aaf24a 100644
--- a/src/main/java/org/gentoo/java/ebuilder/Main.java
+++ b/src/main/java/org/gentoo/java/ebuilder/Main.java
@@ -7,6 +7,7 @@ import java.io.InputStreamReader;
 import java.io.PrintWriter;
 import java.net.URI;
 import java.net.URISyntaxException;
+import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.text.MessageFormat;
 import java.util.List;
@@ -63,16 +64,18 @@ public class Main {
      */
     private static void checkArgs(final Config config) {
         if (config.isRefreshCache()) {
-            if (config.getPortageTree() == null) {
-                config.setPortageTree(Paths.get("/usr/portage"));
+            if (config.getPortageTree().isEmpty()) {
+                config.addPortageTree(Paths.get("/usr/portage"));
             }
 
-            if (!config.getPortageTree().toFile().exists()) {
-                config.getErrorWriter().println("ERROR: Portage tree "
-                        + config.getPortageTree() + " does not exist.");
-                Runtime.getRuntime().exit(1);
+            for (Path portageTree : config.getPortageTree()) {
+                if (!portageTree.toFile().exists()) {
+                    config.getErrorWriter().println("ERROR: Portage tree "
+                            + portageTree + " does not exist.");
+                    Runtime.getRuntime().exit(1);
+                }
             }
-        } else if (config.getPortageTree() != null) {
+        } else if (!config.getPortageTree().isEmpty()) {
             config.getErrorWriter().println("WARNING: Portage tree is used "
                     + "only when refreshing cache.");
         }
@@ -277,7 +280,7 @@ public class Main {
                 case "--portage-tree":
                 case "-t":
                     i++;
-                    config.setPortageTree(Paths.get(args[i]).toAbsolutePath().
+                    config.addPortageTree(Paths.get(args[i]).toAbsolutePath().
                             normalize());
                     break;
                 case "--cache-file":
diff --git a/src/main/java/org/gentoo/java/ebuilder/portage/PortageParser.java b/src/main/java/org/gentoo/java/ebuilder/portage/PortageParser.java
index b48e0d2..a1a7075 100644
--- a/src/main/java/org/gentoo/java/ebuilder/portage/PortageParser.java
+++ b/src/main/java/org/gentoo/java/ebuilder/portage/PortageParser.java
@@ -139,9 +139,11 @@ public class PortageParser {
         processedEbuilds = 0;
         eclassesCounts.clear();
 
-        config.getStdoutWriter().println("Parsing portage tree @ "
-                + config.getPortageTree() + " ...");
-        parseCategories(config.getPortageTree());
+        for (Path portageTree : config.getPortageTree()) {
+            config.getStdoutWriter().println("Parsing portage tree @ "
+                    + portageTree + " ...");
+            parseCategories(portageTree);
+        }
 
         final long endTimestamp = System.currentTimeMillis();
 
diff --git a/src/main/resources/usage.txt b/src/main/resources/usage.txt
index e48e3f9..b197a39 100644
--- a/src/main/resources/usage.txt
+++ b/src/main/resources/usage.txt
@@ -22,8 +22,8 @@ Generating ebuild:
 
 Refreshing cache:
 --portage-tree|-t                  path to portage tree that should be parsed
-                                   when refreshing cache (default is
-                                   /usr/portage)
+                                   when refreshing cache (can be specified multiple
+                                   times, default is /usr/portage)
 --refresh-cache|-c                 refreshes java ebuild cache
 
 Common: