Report formatted files and counts based based on reported issues.

src/Analyzers/AnalyzerFormatter.cs

@@ -73,13 +73,17 @@ internal class AnalyzerFormatter : ICodeFormatter
             var projectDiagnosticsMS = analysisStopwatch.ElapsedMilliseconds;
             logger.LogTrace(Resources.Complete_in_0_ms, projectDiagnosticsMS);
 
-            logger.LogTrace(Resources.Fixing_diagnostics);
+            // Only run code fixes when we are saving changes.
+            if (formatOptions.SaveFormattedFiles)
+            {
+                logger.LogTrace(Resources.Fixing_diagnostics);
 
-            // Run each analyzer individually and apply fixes if possible.
-            solution = await FixDiagnosticsAsync(solution, analyzers, fixers, projectDiagnostics, formattablePaths, severity, includeCompilerDiagnostics, logger, cancellationToken).ConfigureAwait(false);
+                // Run each analyzer individually and apply fixes if possible.
+                solution = await FixDiagnosticsAsync(solution, analyzers, fixers, projectDiagnostics, formattablePaths, severity, includeCompilerDiagnostics, logger, cancellationToken).ConfigureAwait(false);
 
-            var fixDiagnosticsMS = analysisStopwatch.ElapsedMilliseconds - projectDiagnosticsMS;
-            logger.LogTrace(Resources.Complete_in_0_ms, fixDiagnosticsMS);
+                var fixDiagnosticsMS = analysisStopwatch.ElapsedMilliseconds - projectDiagnosticsMS;
+                logger.LogTrace(Resources.Complete_in_0_ms, fixDiagnosticsMS);
+            }
 
             logger.LogTrace(Resources.Analysis_complete_in_0ms_, analysisStopwatch.ElapsedMilliseconds);
 

src/CodeFormatter.cs

@@ -73,22 +73,12 @@ internal static class CodeFormatter
             var formatterRanMS = workspaceStopwatch.ElapsedMilliseconds - loadWorkspaceMS - determineFilesMS;
             logger.LogTrace(Resources.Complete_in_0_ms, formatterRanMS);
 
-            var solutionChanges = formattedSolution.GetChanges(solution);
-
-            var filesFormatted = 0;
-            foreach (var projectChanges in solutionChanges.GetProjectChanges())
+            var documentIdsWithErrors = formattedFiles.Select(file => file.DocumentId).Distinct().ToImmutableArray();
+            foreach (var documentId in documentIdsWithErrors)
             {
-                foreach (var changedDocumentId in projectChanges.GetChangedDocuments())
-                {
-                    var changedDocument = solution.GetDocument(changedDocumentId);
-                    if (changedDocument?.FilePath is null)
-                    {
-                        continue;
-                    }
+                var documentWithError = solution.GetDocument(documentId);
 
-                    logger.LogInformation(Resources.Formatted_code_file_0, changedDocument.FilePath);
-                    filesFormatted++;
-                }
+                logger.LogInformation(Resources.Formatted_code_file_0, documentWithError!.FilePath);
             }
 
             var exitCode = 0;
@@ -104,11 +94,11 @@ internal static class CodeFormatter
                 ReportWriter.Write(formatOptions.ReportPath!, formattedFiles, logger);
             }
 
-            logger.LogDebug(Resources.Formatted_0_of_1_files, filesFormatted, fileCount);
+            logger.LogDebug(Resources.Formatted_0_of_1_files, documentIdsWithErrors.Length, fileCount);
 
             logger.LogInformation(Resources.Format_complete_in_0_ms, workspaceStopwatch.ElapsedMilliseconds);
 
-            return new WorkspaceFormatResult(filesFormatted, fileCount, exitCode);
+            return new WorkspaceFormatResult(documentIdsWithErrors.Length, fileCount, exitCode);
         }
 
         private static Workspace OpenFolderWorkspace(string workspacePath, SourceFileMatcher fileMatcher)

src/Formatters/UnnecessaryImportsFormatter.cs

@@ -36,6 +36,13 @@ internal sealed class UnnecessaryImportsFormatter : DocumentFormatter
                 return sourceText;
             }
 
+            // If we are not saving files, do not make changes in this formatter. They will be
+            // reported by their diagnostic id when the analyzer formatter runs.
+            if (!formatOptions.SaveFormattedFiles)
+            {
+                return sourceText;
+            }
+
             var tree = await document.GetSyntaxTreeAsync(cancellationToken).ConfigureAwait(false);
             if (tree is null)
             {

tests/Formatters/AbstractFormatterTests.cs

@@ -138,7 +138,7 @@ protected AbstractFormatterTest()
                 codeStyleSeverity,
                 fixAnalyzers,
                 analyzerSeverity,
-                saveFormattedFiles: false,
+                saveFormattedFiles: true,
                 changesAreErrors: false,
                 fileMatcher,
                 reportPath: string.Empty,