Mercurial > hg > uwproj / file diff

--- a/src/main/java/de/unixwork/uwproj/Main.java	Wed Oct 11 20:41:26 2023 +0200
+++ b/src/main/java/de/unixwork/uwproj/Main.java	Sun Oct 15 19:20:41 2023 +0200
@@ -5,6 +5,12 @@
 import org.slf4j.LoggerFactory;
 
 import java.io.*;
+import java.nio.file.*;
+import java.nio.file.attribute.PosixFilePermission;
+import java.nio.file.attribute.PosixFilePermissions;
+import java.util.Arrays;
+import java.util.Objects;
+import java.util.Set;
 
 public class Main {
 
@@ -33,17 +39,73 @@
         new VelocityEngine().getTemplate(tplFileName).merge(context, out);
     }
 
+    private static void abort() {
+        System.err.println("Abort.");
+        System.exit(1);
+    }
+
     private static void printUsage() {
         System.err.println("Usage: uwproj [OPTIONS]");
         System.err.println();
         System.err.println("OPTIONS:");
         System.err.println("  -h --help              Print help text and exit");
+        System.err.println("     --init              Creates default files in directory 'make'");
         System.err.println("  -o --output <file>     Path to the output file");
         System.err.printf("                         (default: %s)\n", OUT_FILE_DEFAULT);
         System.err.println("  -p --project <file>    Path to the project.xml file");
         System.err.printf("                         (default: %s)\n", IN_FILE_DEFAULT);
         System.err.println("  -t --template <file>   Path to the velocity template");
         System.err.printf("                         (default: %s)\n", TPL_FILE_DEFAULT);
+        System.err.println("     --update            Same as --init, but overwrites existing files");
+    }
+
+    private static void extract(Path path) {
+        try (final var res = Objects.requireNonNull(Main.class.getClassLoader().getResourceAsStream(path.toString()))) {
+            Files.copy(res, path, StandardCopyOption.REPLACE_EXISTING);
+        } catch (Throwable t) {
+            System.err.printf("Cannot extract '%s': %s\n", path, t.getMessage());
+            abort();
+        }
+    }
+
+    private static void init(boolean force) {
+        final var files = new String[]{
+                "cc.mk", "gcc.mk", "clang.mk", "suncc.mk",
+                "configure.vm", "toolchain.sh", "uwproj.xsd"
+        };
+
+        // (1) create the make dir if it does not exist
+        final var make = Paths.get("make");
+        if (Files.exists(make)) {
+            if (!Files.isDirectory(make)) {
+                System.err.println("A file with name 'make' already exists, but it's not a directory.");
+                abort();
+            }
+            if (!force) {
+                System.err.println("uwproj files already exist. You can use --update instead.");
+                abort();
+            }
+        } else {
+            try {
+                Files.createDirectory(make);
+            } catch (Throwable t) {
+                System.err.printf("Creating directory failed: %s\n", t.getMessage());
+                abort();
+            }
+        }
+
+        // (2) create project.xml ONLY if it does not exist
+        final var project = make.resolve("project.xml");
+        if (Files.notExists(project)) {
+            extract(project);
+        }
+
+        // (3) create or update remaining uwproj files
+        Arrays.stream(files).map(make::resolve).forEach(Main::extract);
+
+        // (4) stop
+        System.out.printf("uwproj files %s.\n", force ? "updated" : "created");
+        System.exit(0);
     }
 
     private static void checkOneMoreArg(int i, int length) {
@@ -57,6 +119,9 @@
         var inFileName = IN_FILE_DEFAULT;
         var tplFileName = TPL_FILE_DEFAULT;
         var outFileName = OUT_FILE_DEFAULT;
+        boolean opsOptionsUsed = false;
+        boolean doInit = false;
+        boolean forceInit = false;
 
         for (int i = 0 ; i < args.length ; i++) {
             switch (args[i]) {
@@ -64,17 +129,27 @@
                 case "--output":
                     checkOneMoreArg(i, args.length);
                     outFileName = args[++i];
+                    opsOptionsUsed = true;
                     break;
                 case "-p":
                 case "--project":
                     checkOneMoreArg(i, args.length);
                     inFileName = args[++i];
+                    opsOptionsUsed = true;
                     break;
 
                 case "-t":
                 case "--template":
                     checkOneMoreArg(i, args.length);
                     tplFileName = args[++i];
+                    opsOptionsUsed = true;
+                    break;
+                case "--init":
+                    doInit = true;
+                    break;
+                case "--update":
+                    doInit = true;
+                    forceInit = true;
                     break;
                 case "--help":
                 case "-h":
@@ -86,18 +161,30 @@
             }
         }
 
+        if (opsOptionsUsed && doInit) {
+            System.err.println("Cannot use --init or --update with other options.");
+            abort();
+        }
+
+        if (doInit) {
+            init(forceInit);
+        }
+
         System.out.println("In:  " + inFileName);
         System.out.println("Tpl: " + tplFileName);
 
         try (var out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outFileName)))) {
             writeConfigureScript(out, tplFileName, loadProjectFile(inFileName));
-        } catch (Exception ex) {
-            LoggerFactory.getLogger(Main.class).error(
-                    "Uncaught Exception",
-                    ex
-            );
+        } catch (Throwable t) {
+            System.err.printf("Unexpected error: %s\n", t.getMessage());
+            abort();
         }
 
         System.out.println("Out: " + outFileName);
+        try {
+            Files.setPosixFilePermissions(Path.of(outFileName), PosixFilePermissions.fromString("rwxr-xr-x"));
+        } catch (Throwable t) {
+            System.err.printf("WARN: Setting file permissions failed: %s\n", t.getMessage());
+        }
     }
 }