Build .tsbuildinfo file when building using tsc --b

Gulpfile.js

@@ -14,7 +14,7 @@ const { src, dest, task, parallel, series, watch } = require("gulp");
 const { append, transform } = require("gulp-insert");
 const { browserify } = require("./scripts/build/browserify");
 const { prependFile } = require("./scripts/build/prepend");
-const { exec, readJson, needsUpdate, getDiffTool, getDirSize, flatten, rm } = require("./scripts/build/utils");
+const { exec, readJson, needsUpdate, getDiffTool, getDirSize, rm } = require("./scripts/build/utils");
 const { runConsoleTests, cleanTestDirs, writeTestConfigFile, refBaseline, localBaseline, refRwcBaseline, localRwcBaseline } = require("./scripts/build/tests");
 const { buildProject, cleanProject, watchProject } = require("./scripts/build/projects");
 const cmdLineOptions = require("./scripts/build/options");
@@ -114,18 +114,8 @@ const localPreBuild = parallel(generateLibs, series(buildScripts, generateDiagno
 const preBuild = cmdLineOptions.lkg ? lkgPreBuild : localPreBuild;
 
 const buildServices = (() => {
-    // flatten the services project
-    const flattenServicesConfig = async () => flatten("src/services/tsconfig.json", "built/local/typescriptServices.tsconfig.json", {
-        compilerOptions: {
-            "removeComments": false,
-            "stripInternal": true,
-            "declarationMap": false,
-            "outFile": "typescriptServices.out.js"
-        }
-    });
-
     // build typescriptServices.out.js
-    const buildTypescriptServicesOut = () => buildProject("built/local/typescriptServices.tsconfig.json", cmdLineOptions);
+    const buildTypescriptServicesOut = () => buildProject("src/typescriptServices/tsconfig.json", cmdLineOptions);
 
     // create typescriptServices.js
     const createTypescriptServicesJs = () => src("built/local/typescriptServices.out.js")
@@ -167,13 +157,13 @@ const buildServices = (() => {
         .pipe(dest("built/local"));
 
     return series(
-        flattenServicesConfig,
         buildTypescriptServicesOut,
         createTypescriptServicesJs,
         createTypescriptServicesDts,
         createTypescriptJs,
         createTypescriptDts,
-        createTypescriptStandaloneDts);
+        createTypescriptStandaloneDts,
+    );
 })();
 task("services", series(preBuild, buildServices));
 task("services").description = "Builds the language service";
@@ -186,13 +176,13 @@ const cleanServices = async () => {
         await cleanProject("built/local/typescriptServices.tsconfig.json");
     }
     await del([
-        "built/local/typescriptServices.tsconfig.json",
         "built/local/typescriptServices.out.js",
         "built/local/typescriptServices.out.d.ts",
+        "built/local/typescriptServices.out.tsbuildinfo",
         "built/local/typescriptServices.js",
         "built/local/typescript.js",
         "built/local/typescript.d.ts",
-        "built/local/typescript_standalone.d.ts",
+        "built/local/typescript_standalone.d.ts"
     ]);
 };
 cleanTasks.push(cleanServices);
@@ -248,20 +238,8 @@ task("watch-min").flags = {
 }
 
 const buildLssl = (() => {
-    // flatten the server project
-    const flattenTsServerProject = async () => flatten("src/tsserver/tsconfig.json", "built/local/tsserverlibrary.tsconfig.json", {
-        exclude: ["src/tsserver/server.ts"],
-        compilerOptions: {
-            "removeComments": false,
-            "stripInternal": true,
-            "declaration": true,
-            "declarationMap": false,
-            "outFile": "tsserverlibrary.out.js"
-        }
-    });
-
     // build tsserverlibrary.out.js
-    const buildServerLibraryOut = () => buildProject("built/local/tsserverlibrary.tsconfig.json", cmdLineOptions);
+    const buildServerLibraryOut = () => buildProject("src/tsserverlibrary/tsconfig.json", cmdLineOptions);
 
     // create tsserverlibrary.js
     const createServerLibraryJs = () => src("built/local/tsserverlibrary.out.js")
@@ -282,10 +260,10 @@ const buildLssl = (() => {
         .pipe(dest("built/local"));
 
     return series(
-        flattenTsServerProject,
         buildServerLibraryOut,
         createServerLibraryJs,
-        createServerLibraryDts);
+        createServerLibraryDts,
+    );
 })();
 task("lssl", series(preBuild, buildLssl));
 task("lssl").description = "Builds language service server library";
@@ -298,9 +276,9 @@ const cleanLssl = async () => {
         await cleanProject("built/local/tsserverlibrary.tsconfig.json");
     }
     await del([
-        "built/local/tsserverlibrary.tsconfig.json",
         "built/local/tsserverlibrary.out.js",
         "built/local/tsserverlibrary.out.d.ts",
+        "built/local/tsserverlibrary.out.tsbuildinfo",
         "built/local/tsserverlibrary.js",
         "built/local/tsserverlibrary.d.ts",
     ]);

lib/enu/diagnosticMessages.generated.json.lcg

@@ -339,6 +339,18 @@
               </Str>
               <Disp Icon="Str" />
             </Item>
+            <Item ItemId=";A_non_dry_build_would_update_output_of_project_0_6375" ItemType="0" PsrId="306" Leaf="true">
+              <Str Cat="Text">
+                <Val><![CDATA[A non-dry build would update output of project '{0}']]></Val>
+              </Str>
+              <Disp Icon="Str" />
+            </Item>
+            <Item ItemId=";A_non_dry_build_would_update_timestamps_for_output_of_project_0_6374" ItemType="0" PsrId="306" Leaf="true">
+              <Str Cat="Text">
+                <Val><![CDATA[A non-dry build would update timestamps for output of project '{0}']]></Val>
+              </Str>
+              <Disp Icon="Str" />
+            </Item>
             <Item ItemId=";A_parameter_initializer_is_only_allowed_in_a_function_or_constructor_implementation_2371" ItemType="0" PsrId="306" Leaf="true">
               <Str Cat="Text">
                 <Val><![CDATA[A parameter initializer is only allowed in a function or constructor implementation.]]></Val>
@@ -1641,6 +1653,12 @@
               </Str>
               <Disp Icon="Str" />
             </Item>
+            <Item ItemId=";Cannot_update_output_of_project_0_because_there_was_error_reading_file_1_6376" ItemType="0" PsrId="306" Leaf="true">
+              <Str Cat="Text">
+                <Val><![CDATA[Cannot update output of project '{0}' because there was error reading file '{1}']]></Val>
+              </Str>
+              <Disp Icon="Str" />
+            </Item>
             <Item ItemId=";Cannot_use_JSX_unless_the_jsx_flag_is_provided_17004" ItemType="0" PsrId="306" Leaf="true">
               <Str Cat="Text">
                 <Val><![CDATA[Cannot use JSX unless the '--jsx' flag is provided.]]></Val>
@@ -1671,6 +1689,12 @@
               </Str>
               <Disp Icon="Str" />
             </Item>
+            <Item ItemId=";Cannot_write_file_0_because_it_will_overwrite_tsbuildinfo_file_generated_by_referenced_project_1_6377" ItemType="0" PsrId="306" Leaf="true">
+              <Str Cat="Text">
+                <Val><![CDATA[Cannot write file '{0}' because it will overwrite '.tsbuildinfo' file generated by referenced project '{1}']]></Val>
+              </Str>
+              <Disp Icon="Str" />
+            </Item>
             <Item ItemId=";Cannot_write_file_0_because_it_would_be_overwritten_by_multiple_input_files_5056" ItemType="0" PsrId="306" Leaf="true">
               <Str Cat="Text">
                 <Val><![CDATA[Cannot write file '{0}' because it would be overwritten by multiple input files.]]></Val>
@@ -1869,6 +1893,12 @@
               </Str>
               <Disp Icon="Str" />
             </Item>
+            <Item ItemId=";Composite_projects_may_not_disable_incremental_compilation_6379" ItemType="0" PsrId="306" Leaf="true">
+              <Str Cat="Text">
+                <Val><![CDATA[Composite projects may not disable incremental compilation.]]></Val>
+              </Str>
+              <Disp Icon="Str" />
+            </Item>
             <Item ItemId=";Computed_property_names_are_not_allowed_in_enums_1164" ItemType="0" PsrId="306" Leaf="true">
               <Str Cat="Text">
                 <Val><![CDATA[Computed property names are not allowed in enums.]]></Val>
@@ -2421,6 +2451,12 @@
               </Str>
               <Disp Icon="Str" />
             </Item>
+            <Item ItemId=";Enable_incremental_compilation_6378" ItemType="0" PsrId="306" Leaf="true">
+              <Str Cat="Text">
+                <Val><![CDATA[Enable incremental compilation]]></Val>
+              </Str>
+              <Disp Icon="Str" />
+            </Item>
             <Item ItemId=";Enable_project_compilation_6302" ItemType="0" PsrId="306" Leaf="true">
               <Str Cat="Text">
                 <Val><![CDATA[Enable project compilation]]></Val>
@@ -4485,6 +4521,12 @@
               </Str>
               <Disp Icon="Str" />
             </Item>
+            <Item ItemId=";Project_0_is_out_of_date_because_output_of_its_dependency_1_has_changed_6372" ItemType="0" PsrId="306" Leaf="true">
+              <Str Cat="Text">
+                <Val><![CDATA[Project '{0}' is out of date because output of its dependency '{1}' has changed]]></Val>
+              </Str>
+              <Disp Icon="Str" />
+            </Item>
             <Item ItemId=";Project_0_is_up_to_date_6361" ItemType="0" PsrId="306" Leaf="true">
               <Str Cat="Text">
                 <Val><![CDATA[Project '{0}' is up to date]]></Val>
@@ -5343,6 +5385,12 @@
               </Str>
               <Disp Icon="Str" />
             </Item>
+            <Item ItemId=";Specify_file_to_store_incremental_compilation_information_6380" ItemType="0" PsrId="306" Leaf="true">
+              <Str Cat="Text">
+                <Val><![CDATA[Specify file to store incremental compilation information]]></Val>
+              </Str>
+              <Disp Icon="Str" />
+            </Item>
             <Item ItemId=";Specify_library_files_to_be_included_in_the_compilation_6079" ItemType="0" PsrId="306" Leaf="true">
               <Str Cat="Text">
                 <Val><![CDATA[Specify library files to be included in the compilation.]]></Val>
@@ -6465,6 +6513,12 @@
               </Str>
               <Disp Icon="Str" />
             </Item>
+            <Item ItemId=";Updating_output_of_project_0_6373" ItemType="0" PsrId="306" Leaf="true">
+              <Str Cat="Text">
+                <Val><![CDATA[Updating output of project '{0}'...]]></Val>
+              </Str>
+              <Disp Icon="Str" />
+            </Item>
             <Item ItemId=";Updating_output_timestamps_of_project_0_6359" ItemType="0" PsrId="306" Leaf="true">
               <Str Cat="Text">
                 <Val><![CDATA[Updating output timestamps of project '{0}'...]]></Val>