Added workaround for the 'tsconfig.json' bug

Readme.md

@@ -129,13 +129,28 @@ The outputFileName name lets you set the name of the produced by Pkl.
 outputFileName = "totally_tsconfig.json
 ```
 
-To build, run `pkl eval tsconfig.pkl -m .`, and it will create a `tsconfig.json` in the same directory.
+### Warning ###
+There is a bug where in VsCode (at least), when you set *outputFileName* to 'tsconfig.json',
+Pkl creates the proper 'tsconfig.json' file but it has the type Typescript, not JSON.  
+All other file names are fine.
 
-If you don't have `pkl` installed on your local machine, you can use your Javascript runtime to run
-a remote version of `pkl`:
+As a workaround, pklTsConfig will set *outputFileName* to 'totally_tsconfig.json' when it is set to 'tsconfig.json'.  Just
+change the file name to 'tsconfig.json' and your all set.
 
-With `npx`: 
-`npx pkl eval tsconfig.pkl -m .`
+### Running pklTsConfig ###
 
-With `bunx`:
-`bunx pkl eval tsconfig.pkl -m .`
+1)  If you have `Pkl` installed locally:
+
+        To generate you tsconfig, run `pkl eval tsconfig.pkl -m .`, and it will create a `tsconfig.json` file in the same directory.
+
+        You can download Pkl by following Pkl's [installation instructions](https://pkl-lang.org/main/current/pkl-cli/index.html#installation).
+
+2)  If you don't have `Pkl` installed on your local machine:
+
+    You can use your Javascript bundler (npm, bun) to run a remote version of `pkl`:
+
+         With `npx`: 
+         `npx pkl eval tsconfig.pkl -m .`
+
+         With `bunx`:
+         `bunx pkl eval tsconfig.pkl -m .`

src/default.pkl

@@ -21,11 +21,11 @@ root = new Schema.RootSchema {
 
 amend = new Schema.AmendSchema { }
 
-outputFileName: String = "tsconfig.json"
+outputFileName:Schema.ValidOutputFileName = "tsconfig.json"
 
 output {
   files {
-    [outputFileName] {
+    [if (outputFileName == "tsconfig.json") "totally_tsconfig.json" else outputFileName] {
       value = Render.renderTsConfig(config, root, amend)
       renderer = new JsonRenderer {
         converters {

src/schema.pkl

@@ -6,6 +6,7 @@ typealias ConfigItemValue = String | Boolean | List<String>
 
 typealias FileName = String(contains(".ts") || contains(".tsx") || contains(".json") || contains(".js"))
 typealias FileList = Listing<FileName>
+typealias ValidOutputFileName = String(matches(Regex(#"[a-zA-Z0-9-_. ]{1,255}.json"#)))
 
 class pklTsConfigSchema {
     compilerOptions: CompilerOptionsSchema

src/version.txt

@@ -1 +1 @@
-0.5.1
+0.6.1

tsconfig.pkl

@@ -25,4 +25,4 @@ amend {
     ["allowJs"] = false
 }
 
-outputFileName = "totally_tsconfig.json"
+outputFileName = "tsconfig.json"