Feature/newworkspace

aQute.libg/src/aQute/lib/io/IO.java

@@ -123,6 +123,16 @@ interface OS {
 		 * @return a safe file name
 		 */
 		String toSafeFileName(String name);
+
+		/**
+		 * Return a file from a base. The file must use forward slash but may
+		 * start on windows with c:/... or /c:/ to indicate a drive.
+		 *
+		 * @param base the base to resolve the file from
+		 * @param file the path
+		 * @return a file
+		 */
+		File getFile(File base, String file);
 	}
 
 	final static OS os = File.separatorChar == '\\' ? new Windows() : new Other();
@@ -840,47 +850,7 @@ public static File getFile(String file) {
 	}
 
 	public static File getFile(File base, String file) {
-		StringRover rover = new StringRover(file);
-		if (rover.startsWith("~/")) {
-			rover.increment(2);
-			if (!rover.startsWith("~/")) {
-				return getFile(home, rover.substring(0));
-			}
-		}
-		if (rover.startsWith("~")) {
-			return getFile(home.getParentFile(), rover.substring(1));
-		}
-
-		File f = new File(rover.substring(0));
-		if (f.isAbsolute()) {
-			return f;
-		}
-
-		if (base == null) {
-			base = work;
-		}
-
-		for (f = base.getAbsoluteFile(); !rover.isEmpty();) {
-			int n = rover.indexOf('/');
-			if (n < 0) {
-				n = rover.length();
-			}
-			if ((n == 0) || ((n == 1) && (rover.charAt(0) == '.'))) {
-				// case "" or "."
-			} else if ((n == 2) && (rover.charAt(0) == '.') && (rover.charAt(1) == '.')) {
-				// case ".."
-				File parent = f.getParentFile();
-				if (parent != null) {
-					f = parent;
-				}
-			} else {
-				String segment = rover.substring(0, n);
-				f = new File(f, segment);
-			}
-			rover.increment(n + 1);
-		}
-
-		return f.getAbsoluteFile();
+		return os.getFile(base, file);
 	}
 
 	/**
@@ -1794,4 +1764,23 @@ public static String getJavaExecutablePath(String name) {
 		return name;
 	}
 
+	/**
+	 * Create a new unique file name in the given folder
+	 *
+	 * @param folder the folder to create a File in
+	 * @param stem the name stem, "untitled-" if null
+	 * @return a file in the folder that does not exist
+	 */
+	public static File unique(File folder, String stem) {
+		if (stem == null)
+			stem = "untitled-";
+		int n = 0;
+		while (true) {
+			File f = new File(folder, stem + n);
+			if (!f.exists())
+				return f;
+			n++;
+		}
+	}
+
 }

aQute.libg/src/aQute/lib/io/NullAppendable.java

@@ -0,0 +1,18 @@
+package aQute.lib.io;
+public class NullAppendable implements Appendable {
+
+    @Override
+    public Appendable append(CharSequence csq) {
+        return this;
+    }
+
+    @Override
+    public Appendable append(CharSequence csq, int start, int end) {
+        return this;
+    }
+
+    @Override
+    public Appendable append(char c) {
+        return this;
+    }
+}

aQute.libg/src/aQute/lib/io/Other.java

@@ -5,6 +5,7 @@
 import java.nio.file.Path;
 
 import aQute.lib.io.IO.OS;
+import aQute.lib.stringrover.StringRover;
 
 class Other implements OS {
 
@@ -46,4 +47,54 @@
 		}
 		return sb.toString();
 	}
+
+	@Override
+	public File getFile(File base, String file) {
+		return getFile0(base, file);
+	}
+
+	static File getFile0(File base, String path) {
+		StringRover rover = new StringRover(path);
+		if (rover.startsWith("~/")) {
+			rover.increment(2);
+			if (!rover.startsWith("~/")) {
+				return getFile0(IO.home, rover.substring(0));
+			}
+		}
+		if (rover.startsWith("~")) {
+			return getFile0(IO.home.getParentFile(), rover.substring(1));
+		}
+
+		File f = new File(rover.substring(0));
+		if (f.isAbsolute()) {
+			return f;
+		}
+
+		if (base == null) {
+			base = IO.work;
+		}
+
+		for (f = base.getAbsoluteFile(); !rover.isEmpty();) {
+			int n = rover.indexOf('/');
+			if (n < 0) {
+				n = rover.length();
+			}
+			if ((n == 0) || ((n == 1) && (rover.charAt(0) == '.'))) {
+				// case "" or "."
+			} else if ((n == 2) && (rover.charAt(0) == '.') && (rover.charAt(1) == '.')) {
+				// case ".."
+				File parent = f.getParentFile();
+				if (parent != null) {
+					f = parent;
+				}
+			} else {
+				String segment = rover.substring(0, n);
+				f = new File(f, segment);
+			}
+			rover.increment(n + 1);
+		}
+
+		return f.getAbsoluteFile();
+	}
+
 }

aQute.libg/src/aQute/lib/io/Windows.java

@@ -12,6 +12,7 @@
 	final static Pattern WINDOWS_BAD_FILE_NAME_P = Pattern.compile(
 		"(?:(:?.*[\u0000-\u001F<>:\"|/\\\\?*].*)|\\.\\.|CON|PRN|AUX|NUL|COM\\d|COM¹|COM²|COM³|LPT\\d|LPT¹|LPT²|LPT³)(?:\\.\\w+)?",
 		Pattern.CASE_INSENSITIVE);
+	final static Pattern	DRIVE_P					= Pattern.compile("/?(?<drive>[a-z]:)", Pattern.CASE_INSENSITIVE);
 
 	@Override
 	public File getBasedFile(File base, String subPath) throws IOException {
@@ -72,4 +73,13 @@
 		return sb.toString();
 	}
 
+	@Override
+	public File getFile(File base, String file) {
+		file = file.replace('\\', '/');
+		Matcher m = DRIVE_P.matcher(file);
+		if (m.lookingAt()) {
+			base = new File(m.group("drive"));
+		}
+		return Other.getFile0(base, file);
+	}
 }

aQute.libg/src/aQute/libg/re/Catalog.java

@@ -1189,6 +1189,14 @@ public Optional<MatchGroup> group(int group) {
 						return Optional.of(new MatchGroupImplIndex(group, value));
 					}
 
+					@Override
+					public String presentGroup(String groupName) {
+						String group = matcher.group(groupName);
+						if (group == null)
+							throw new IllegalArgumentException("no such group " + groupName);
+						return group;
+					}
+
 				}
 				return Optional.of(new MatchImpl());
 			} else

aQute.libg/src/aQute/libg/re/RE.java

@@ -323,6 +323,14 @@ default boolean check(RE expected) {
 		String tryMatch(RE match);
 
 		Optional<MatchGroup> group(int group);
+
+		/**
+		 * This gets the value of a group but throws an exception of the group
+		 * is not there.
+		 *
+		 * @param groupName the name of the group
+		 */
+		String presentGroup(String groupName);
 	}
 
 	/**

aQute.libg/test/aQute/lib/io/IOTest.java

@@ -89,6 +89,17 @@ public void testSafeFileNameWindows() {
 		assertEquals("COM2_", IO.toSafeFileName("COM2"));
 	}
 
+	@Test
+	@EnabledOnOs(WINDOWS)
+	public void testGetFileOnWindows() {
+		assertThat(IO.getFile("f:/abc")).isEqualTo(new File("f:\\abc"));
+		assertThat(IO.getFile("/f:/abc")).isEqualTo(new File("f:\\abc"));
+
+		File f = new File("f:");
+		assertThat(IO.getFile(f, "abc")).isEqualTo(new File("f:\\abc"));
+	}
+
+
 	@Test
 	public void testFilesetCopy(@InjectTemporaryDirectory
 	File destDir) throws Exception {

biz.aQute.bndlib/bnd.bnd

@@ -36,6 +36,7 @@ Export-Package: \
 	aQute.bnd.util.home;-noimport:=true,\
 	aQute.bnd.util.repository;-noimport:=true,\
 	aQute.bnd.version;-noimport:=true,\
+	aQute.bnd.wstemplates;-noimport:=true,\
     aQute.lib.deployer;-noimport:=true,\
     aQute.service.reporter;-noimport:=true