# HG changeset patch
# User Mike Becker <universe@uap-core.de>
# Date 1695413314 -7200
# Node ID d1e78c98a250ca191a229b800d00a7ab99afd1dd
# Parent  b8d06f7b617c9498134176fa8ee2d673d9eeaa91
simplify code which computes the required languages

diff -r b8d06f7b617c -r d1e78c98a250 src/main/java/de/unixwork/uwproj/Project.java
--- a/src/main/java/de/unixwork/uwproj/Project.java	Thu Sep 21 18:24:37 2023 +0200
+++ b/src/main/java/de/unixwork/uwproj/Project.java	Fri Sep 22 22:08:34 2023 +0200
@@ -6,10 +6,9 @@
 
 import javax.xml.parsers.DocumentBuilderFactory;
 import java.io.File;
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Optional;
+import java.util.*;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 public class Project {
     private final HashMap<String, List<Dependency>> namedDependencies = new HashMap<>();
@@ -21,7 +20,7 @@
     private final HashMap<String, ConfigVar> configVars = new HashMap<>();
     private final List<ConfigVar> configVarsList = new LinkedList<>();
     
-    private final List<String> langList = new LinkedList<>();
+    private final Set<String> lang;
 
     public Project(File file) throws Exception {
         var root = DocumentBuilderFactory.
@@ -60,22 +59,10 @@
         }
         
         // create a list of all languages that are used
-        for (Dependency d : dependencies) {
-            for (String lang : d.getLang()) {
-                if(!langList.contains(lang)) {
-                    langList.add(lang);
-                }
-            }
-        }
-        for (var nd : namedDependencies.entrySet()) {
-            for (var d : nd.getValue()) {
-                for (String lang : d.getLang()) {
-                    if(!langList.contains(lang)) {
-                        langList.add(lang);
-                    }
-                }
-            }
-        }
+        lang = Stream.concat(
+            namedDependencies.values().stream().flatMap(Collection::stream),
+            dependencies.stream()
+        ).flatMap(d -> d.getLang().stream()).collect(Collectors.toSet());
     }
 
     private void createDefaultTarget() {
@@ -139,7 +126,7 @@
         return configVarsList;
     }
     
-    public List<String> getLang() {
-        return langList;
+    public Collection<String> getLang() {
+        return lang;
     }
 }
diff -r b8d06f7b617c -r d1e78c98a250 src/test/resources/golden-sample/configure
--- a/src/test/resources/golden-sample/configure	Thu Sep 21 18:24:37 2023 +0200
+++ b/src/test/resources/golden-sample/configure	Fri Sep 22 22:08:34 2023 +0200
@@ -199,12 +199,12 @@
 # check languages
 lang_c=
 lang_cpp=
+if detect_cpp_compiler ; then
+    lang_cpp=1
+fi
 if detect_c_compiler ; then
     lang_c=1
 fi
-if detect_cpp_compiler ; then
-    lang_cpp=1
-fi
 
 # create buffer for make variables required by dependencies
 echo > "$TEMP_DIR/make.mk"