add caseSensitiveFileSupport (#9809)

* add caseSensitiveFileSupport

Author: browntarik

Extension/package.json

@@ -2662,6 +2662,16 @@
           "markdownDescription": "%c_cpp.configuration.suggestSnippets.markdownDescription%",
           "scope": "resource"
         },
+        "C_Cpp.caseSensitiveFileSupport": {
+          "type": "string",
+          "enum": [
+            "default",
+            "enabled"
+          ],
+          "default": "default",
+          "markdownDescription": "%c_cpp.configuration.caseSensitiveFileSupport.markdownDescription%",
+          "scope": "window"
+        },
         "C_Cpp.enhancedColorization": {
           "type": "string",
           "enum": [

Extension/package.nls.json

@@ -226,6 +226,7 @@
     "c_cpp.configuration.default.dotConfig.markdownDescription": { "message": "The value to use in a configuration if `dotConfig` is not specified, or the value to insert if `${default}` is present in `dotConfig`.", "comment": [ "Markdown text between `` should not be translated or localized (they represent literal text) and the capitalization, spacing, and punctuation (including the ``) should not be altered." ] },
     "c_cpp.configuration.experimentalFeatures.description": "Controls whether \"experimental\" features are usable.",
     "c_cpp.configuration.suggestSnippets.markdownDescription": { "message": "If `true`, snippets are provided by the language server.", "comment": [ "Markdown text between `` should not be translated or localized (they represent literal text) and the capitalization, spacing, and punctuation (including the ``) should not be altered." ] },
+    "c_cpp.configuration.caseSensitiveFileSupport.markdownDescription": { "message": "If set to `default`, the file system of the workspace is assumed to be case insensitive on Windows and case sensitive on macOS or Linux. If set to `enabled`, the file system of the workspace is assumed to be case sensitive on Windows.", "comment": [ "Markdown text between `` should not be translated or localized (they represent literal text) and the capitalization, spacing, and punctuation (including the ``) should not be altered." ] },
     "c_cpp.configuration.enhancedColorization.markdownDescription": { "message": "If enabled, code is colorized based on IntelliSense. This setting only applies if `#C_Cpp.intelliSenseEngine#` is set to `Default`.", "comment": [ "Markdown text between `` should not be translated or localized (they represent literal text) and the capitalization, spacing, and punctuation (including the ``) should not be altered." ] },
     "c_cpp.configuration.codeFolding.description": "If enabled, code folding ranges are provided by the language server.",
     "c_cpp.configuration.vcpkg.enabled.markdownDescription": { "message": "Enable integration services for the [vcpkg dependency manager](https://aka.ms/vcpkg/).", "comment": [ "Markdown text between () should not be altered: https://en.wikipedia.org/wiki/Markdown" ] },

Extension/src/LanguageServer/client.ts

@@ -32,7 +32,7 @@ import * as util from '../common';
 import * as configs from './configurations';
 import { CppSettings, getEditorConfigSettings, OtherSettings } from './settings';
 import * as telemetry from '../telemetry';
-import { PersistentState, PersistentFolderState } from './persistentState';
+import { PersistentState, PersistentFolderState, PersistentWorkspaceState } from './persistentState';
 import { UI, getUI } from './ui';
 import { ClientCollection } from './clientCollection';
 import { createProtocolFilter } from './protocolFilter';
@@ -47,8 +47,10 @@ import * as os from 'os';
 import * as refs from './references';
 import * as nls from 'vscode-nls';
 import { lookupString, localizedStringCount } from '../nativeStrings';
-import { CodeAnalysisDiagnosticIdentifiersAndUri, RegisterCodeAnalysisNotifications, removeAllCodeAnalysisProblems,
-    removeCodeAnalysisProblems, RemoveCodeAnalysisProblemsParams } from './codeAnalysis';
+import {
+    CodeAnalysisDiagnosticIdentifiersAndUri, RegisterCodeAnalysisNotifications, removeAllCodeAnalysisProblems,
+    removeCodeAnalysisProblems, RemoveCodeAnalysisProblemsParams
+} from './codeAnalysis';
 import { DebugProtocolParams, getDiagnosticsChannel, getOutputChannelLogger, logDebugProtocol, Logger, logLocalized, showWarning, ShowWarningParams } from '../logger';
 
 nls.config({ messageFormat: nls.MessageFormat.bundle, bundleFormat: nls.BundleFormat.standalone })();
@@ -407,7 +409,6 @@ export interface GenerateDoxygenCommentParams {
     isCodeAction: boolean;
     isCursorAboveSignatureLine: boolean;
 }
-
 export interface GenerateDoxygenCommentResult {
     contents: string;
     initPosition: Position;
@@ -947,6 +948,8 @@ export class DefaultClient implements Client {
     }
 
     private createLanguageClient(allClients: ClientCollection): LanguageClient {
+        const currentCaseSensitiveFileSupport: PersistentWorkspaceState<boolean> = new PersistentWorkspaceState<boolean>("CPP.currentCaseSensitiveFileSupport", false);
+        let resetDatabase: boolean = false;
         const serverModule: string = getLanguageServerFileName();
         const exeExists: boolean = fs.existsSync(serverModule);
         if (!exeExists) {
@@ -1201,6 +1204,11 @@ export class DefaultClient implements Client {
             localizedStrings.push(lookupString(i));
         }
 
+        if (workspaceSettings.caseSensitiveFileSupport !== currentCaseSensitiveFileSupport.Value) {
+            resetDatabase = true;
+            currentCaseSensitiveFileSupport.Value = workspaceSettings.caseSensitiveFileSupport;
+        }
+
         const clientOptions: LanguageClientOptions = {
             documentSelector: [
                 { scheme: 'file', language: 'c' },
@@ -1209,8 +1217,10 @@ export class DefaultClient implements Client {
             ],
             initializationOptions: {
                 freeMemory: os.freemem() / 1048576,
+                resetDatabase: resetDatabase,
                 maxConcurrentThreads: workspaceSettings.maxConcurrentThreads,
                 maxCachedProcesses: workspaceSettings.maxCachedProcesses,
+                caseSensitiveFileSupport: workspaceSettings.caseSensitiveFileSupport,
                 maxMemory: workspaceSettings.maxMemory,
                 intelliSense: {
                     maxCachedProcesses: workspaceSettings.intelliSenseMaxCachedProcesses,
@@ -1566,6 +1576,11 @@ export class DefaultClient implements Client {
                     if (changedSettings["legacyCompilerArgsBehavior"]) {
                         this.configuration.handleConfigurationChange();
                     }
+
+                    if (changedSettings["caseSensitiveFileSupport"] && util.isWindows()) {
+                        util.promptForReloadWindowDueToSettingsChange();
+                    }
+
                     // if addNodeAddonIncludePaths was turned on but no includes have been found yet then 1) presume that nan
                     // or node-addon-api was installed so prompt for reload.
                     if (changedSettings["addNodeAddonIncludePaths"] && settings.addNodeAddonIncludePaths && this.configuration.nodeAddonIncludesFound() === 0) {
@@ -3189,7 +3204,8 @@ export class DefaultClient implements Client {
         if (removeCodeAnalysisProblems(identifiersAndUris)) {
             // Need to notify the language client of the removed diagnostics so it doesn't re-send them.
             this.languageClient.sendNotification(RemoveCodeAnalysisProblemsNotification, {
-                identifiersAndUris: identifiersAndUrisCopy, refreshSquigglesOnSave: refreshSquigglesOnSave });
+                identifiersAndUris: identifiersAndUrisCopy, refreshSquigglesOnSave: refreshSquigglesOnSave
+            });
         }
     }
 

Extension/src/LanguageServer/settings.ts

@@ -6,7 +6,7 @@
 
 import * as vscode from 'vscode';
 import { CommentPattern } from './languageConfig';
-import { getExtensionFilePath, getCachedClangFormatPath, setCachedClangFormatPath, getCachedClangTidyPath, setCachedClangTidyPath } from '../common';
+import { getExtensionFilePath, getCachedClangFormatPath, setCachedClangFormatPath, getCachedClangTidyPath, setCachedClangTidyPath, isWindows } from '../common';
 import * as os from 'os';
 import * as which from 'which';
 import { execSync } from 'child_process';
@@ -162,7 +162,8 @@ export class CppSettings extends Settings {
         return path;
     }
 
-    public get maxConcurrentThreads(): number | undefined | null { return super.Section.get<number | null>("maxConcurrentThreads"); }    public get maxMemory(): number | undefined | null { return super.Section.get<number | null>("maxMemory"); }
+    public get maxConcurrentThreads(): number | undefined | null { return super.Section.get<number | null>("maxConcurrentThreads"); }
+    public get maxMemory(): number | undefined | null { return super.Section.get<number | null>("maxMemory"); }
     public get maxCachedProcesses(): number | undefined | null { return super.Section.get<number | null>("maxCachedProcesses"); }
     public get intelliSenseMaxCachedProcesses(): number | undefined | null { return super.Section.get<number | null>("intelliSense.maxCachedProcesses"); }
     public get intelliSenseMaxMemory(): number | undefined | null { return super.Section.get<number | null>("intelliSense.maxMemory"); }
@@ -253,7 +254,9 @@ export class CppSettings extends Settings {
     public get defaultCustomConfigurationVariables(): { [key: string]: string } | undefined { return super.Section.get<{ [key: string]: string }>("default.customConfigurationVariables"); }
     public get useBacktickCommandSubstitution(): boolean | undefined { return super.Section.get<boolean>("debugger.useBacktickCommandSubstitution"); }
     public get codeFolding(): boolean { return super.Section.get<string>("codeFolding") === "Enabled"; }
-    public get legacyCompilerArgsBehavior(): boolean | undefined  { return super.Section.get<boolean>("legacyCompilerArgsBehavior"); }
+    public get caseSensitiveFileSupport(): boolean { return !isWindows() || super.Section.get<string>("caseSensitiveFileSupport") === "enabled" ; }
+
+    public get legacyCompilerArgsBehavior(): boolean | undefined { return super.Section.get<boolean>("legacyCompilerArgsBehavior"); }
 
     public get inlayHintsAutoDeclarationTypes(): boolean {
         return super.Section.get<boolean>("inlayHints.autoDeclarationTypes.enabled") === true;