Feature/weave (#138)

* Add weave/stitch style command system to enigma

Also fixed divide by zero stupidity

Signed-off-by: liach <liach@users.noreply.github.com>

* Add tests for package access index and command

Signed-off-by: liach <liach@users.noreply.github.com>

* Minor tweaks

Signed-off-by: liach <liach@users.noreply.github.com>

1 files changed, 47 insertions, 0 deletions

diff --git a/src/main/java/cuchaz/enigma/command/ConvertMappingsCommand.java b/src/main/java/cuchaz/enigma/command/ConvertMappingsCommand.java
new file mode 100644
index 0000000..75d3791
--- /dev/null
+++ b/src/main/java/cuchaz/enigma/command/ConvertMappingsCommand.java
@@ -0,0 +1,47 @@
+package cuchaz.enigma.command;
+
+import cuchaz.enigma.translation.mapping.EntryMapping;
+import cuchaz.enigma.translation.mapping.serde.MappingFormat;
+import cuchaz.enigma.translation.mapping.tree.EntryTree;
+
+import java.io.File;
+import java.nio.file.Path;
+import java.util.Locale;
+
+public class ConvertMappingsCommand extends Command {
+
+        public ConvertMappingsCommand() {
+                super("convertmappings");
+        }
+
+        @Override
+        public String getUsage() {
+                return "<enigma mappings> <converted mappings> <ENIGMA_FILE|ENIGMA_DIRECTORY|SRG_FILE>";
+        }
+
+        @Override
+        public boolean isValidArgument(int length) {
+                return length == 3;
+        }
+
+        @Override
+        public void run(String... args) throws Exception {
+                Path fileMappings = getReadablePath(getArg(args, 0, "enigma mappings", true));
+                File result = getWritableFile(getArg(args, 1, "converted mappings", true));
+                String name = getArg(args, 2, "format desc", true);
+                MappingFormat saveFormat;
+                try {
+                        saveFormat = MappingFormat.valueOf(name.toUpperCase(Locale.ROOT));
+                } catch (IllegalArgumentException e) {
+                        throw new IllegalArgumentException(name + "is not a valid mapping format!");
+                }
+
+                System.out.println("Reading mappings...");
+
+                MappingFormat readFormat = chooseEnigmaFormat(fileMappings);
+                EntryTree<EntryMapping> mappings = readFormat.read(fileMappings, new ConsoleProgressListener());
+                System.out.println("Saving new mappings...");
+
+                saveFormat.write(mappings, result.toPath(), new ConsoleProgressListener());
+        }
+}