Add command to format entire file

Author: kkaefer

clang-format/ClangFormatCommand.mm

@@ -38,6 +38,8 @@ void updateOffsets(std::vector<size_t>& offsets, NSMutableArray<NSString*>* line
 @implementation ClangFormatCommand
 
 NSUserDefaults* defaults = nil;
+NSString* kFormatSelectionCommandIdentifier = [NSString stringWithFormat:@"%@.FormatSelection", [[NSBundle mainBundle] bundleIdentifier]];
+NSString* kFormatFileCommandIdentifier = [NSString stringWithFormat:@"%@.FormatFile", [[NSBundle mainBundle] bundleIdentifier]];
 
 - (NSData*)getCustomStyle {
     // First, read the regular bookmark because it could've been changed by the wrapper app.
@@ -170,10 +172,23 @@ - (void)performCommandWithInvocation:(XCSourceEditorCommandInvocation*)invocatio
     updateOffsets(offsets, lines);
 
     std::vector<clang::tooling::Range> ranges;
-    for (XCSourceTextRange* range in invocation.buffer.selections) {
-        const size_t start = offsets[range.start.line] + range.start.column;
-        const size_t end = offsets[range.end.line] + range.end.column;
-        ranges.emplace_back(start, end - start);
+
+    if ([invocation.commandIdentifier isEqualToString:kFormatSelectionCommandIdentifier]) {
+        for (XCSourceTextRange* range in invocation.buffer.selections) {
+            const size_t start = offsets[range.start.line] + range.start.column;
+            const size_t end = offsets[range.end.line] + range.end.column;
+            ranges.emplace_back(start, end - start);
+        }
+    } else if ([invocation.commandIdentifier isEqualToString:kFormatFileCommandIdentifier]) {
+        ranges.emplace_back(0, code.size());
+    } else {
+        completionHandler([NSError
+                           errorWithDomain:errorDomain
+                           code:0
+                           userInfo:@{
+                               NSLocalizedDescriptionKey : @"Unknown command"
+                           }]);
+        return;
     }
 
     // Calculated replacements and apply them to the input buffer.

clang-format/Info.plist

@@ -32,9 +32,17 @@
 					<key>XCSourceEditorCommandClassName</key>
 					<string>ClangFormatCommand</string>
 					<key>XCSourceEditorCommandIdentifier</key>
-					<string>$(PRODUCT_BUNDLE_IDENTIFIER).ClangFormatCommand</string>
+					<string>$(PRODUCT_BUNDLE_IDENTIFIER).FormatSelection</string>
 					<key>XCSourceEditorCommandName</key>
-					<string>Format Source Code</string>
+					<string>Format Selection</string>
+				</dict>
+				<dict>
+					<key>XCSourceEditorCommandClassName</key>
+					<string>ClangFormatCommand</string>
+					<key>XCSourceEditorCommandIdentifier</key>
+					<string>$(PRODUCT_BUNDLE_IDENTIFIER).FormatFile</string>
+					<key>XCSourceEditorCommandName</key>
+					<string>Format Entire File</string>
 				</dict>
 			</array>
 			<key>XCSourceEditorExtensionPrincipalClass</key>