fsprojects · nojaf · Jul 8, 2022 · Jul 8, 2022 · Jul 8, 2022 · Jul 8, 2022
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,19 +1,23 @@
 # Changelog
 
-## [Unreleased]
+## [5.0.0-alpha-011] - 2022-07-08
 
 ### Changed
 * Restore the CodeFormatter.MakeRange public API. [#2306](https://github.com/fsprojects/fantomas/pull/2306)
 * Update FCS to 'Add arrow to SynType.Fun trivia.', commit 5a5a5f6cd07aa4a8326baa07d4f7af1305ced6f4
 * Update FCS to 'Fix setter first', commit 267d0a57f217df756d9ac33c6aa4ffbfe3b53097
 * Update style of long if/match expressions (See [fslang-design#646](https://github.com/fsharp/fslang-design/issues/646)). [#2334](https://github.com/fsprojects/fantomas/pull/2334)
+* `--force` will now write a file even when the result is invalid. [#2346](https://github.com/fsprojects/fantomas/issues/2346)
 
 ### Added
 * Add setting `fsharp_max_if_then_short_width`. [#2299](https://github.com/fsprojects/fantomas/issues/2299)
 
 ### Fixed
 * KeepIndentInBranch not respected inside a let and match. [1825](https://github.com/fsprojects/fantomas/issues/1825)
 
+### Removed
+* `--stdin`, `--stdout` and `--fsi` flags. [#2346](https://github.com/fsprojects/fantomas/issues/2346)
+
 ## [5.0.0-alpha-010] - 2022-06-27
 
 ### Changed

diff --git a/docs-old/Documentation.md b/docs-old/Documentation.md
@@ -18,7 +18,7 @@ For the overview how to use the tool, you can type the command
 	dotnet fantomas --help
 
 ```
-USAGE: dotnet fantomas [--help] [--recurse] [--force] [--profile] [--fsi <string>] [--stdin] [--stdout] [--out <string>] [--check] [--daemon] [--version] [<string>...]
+USAGE: dotnet fantomas [--help] [--recurse] [--force] [--profile] [--out <string>] [--check] [--daemon] [--version] [<string>...]
 
 INPUT:
 
@@ -27,12 +27,9 @@ INPUT:
 OPTIONS:
 
     --recurse, -r         Process the input folder recursively.
-    --force               Print the source unchanged if it cannot be parsed correctly.
+    --force               Print the output even if it is not valid F# code. For debugging purposes only.
     --profile             Print performance profiling information.
-    --fsi <string>        Read F# source from stdin as F# signatures.
-    --stdin               Read F# source from standard input.
-    --stdout              Write the formatted source code to standard output.
-    --out <string>        Give a valid path for files/folders. Files should have .fs, .fsx, .fsi, .ml or .mli extension only.
+    --out <string>        Give a valid path for files/folders. Files should have .fs, .fsx, .fsi, .ml or .mli extension only. Multiple files/folders are not supported.
     --check               Don't format files, just check if they have changed. Exits with 0 if it's formatted correctly, with 1 if some files need formatting and 99 if there was an internal error
     --daemon              Daemon mode, launches an LSP-like server to can be used by editor tooling.
     --version, -v         Displays the version of Fantomas

diff --git a/paket.dependencies b/paket.dependencies
@@ -16,6 +16,7 @@ nuget Ionide.KeepAChangelog.Tasks copy_local: true
 nuget Dotnet.ReproducibleBuilds copy_local: true
 
 github: fsprojects/fantomas:829faa6ba834f99afed9b4434b3a1680536474b2 src/Fantomas/CodePrinter.fs
+github: dotnet/fsharp:267d0a57f217df756d9ac33c6aa4ffbfe3b53097 src/Compiler/Checking/CheckDeclarations.fs
 
 # F# compiler source
 github: dotnet/fsharp:267d0a57f217df756d9ac33c6aa4ffbfe3b53097 src/Compiler/FSComp.txt

diff --git a/paket.lock b/paket.lock
@@ -182,6 +182,7 @@ GITHUB
     src/Compiler/AbstractIL/ilpars.fsy (267d0a57f217df756d9ac33c6aa4ffbfe3b53097)
     src/Compiler/AbstractIL/ilx.fs (267d0a57f217df756d9ac33c6aa4ffbfe3b53097)
     src/Compiler/AbstractIL/ilx.fsi (267d0a57f217df756d9ac33c6aa4ffbfe3b53097)
+    src/Compiler/Checking/CheckDeclarations.fs (267d0a57f217df756d9ac33c6aa4ffbfe3b53097)
     src/Compiler/Facilities/DiagnosticOptions.fs (267d0a57f217df756d9ac33c6aa4ffbfe3b53097)
     src/Compiler/Facilities/DiagnosticOptions.fsi (267d0a57f217df756d9ac33c6aa4ffbfe3b53097)
     src/Compiler/Facilities/DiagnosticsLogger.fs (267d0a57f217df756d9ac33c6aa4ffbfe3b53097)

diff --git a/src/Fantomas.Tests/Fantomas.Tests.fsproj b/src/Fantomas.Tests/Fantomas.Tests.fsproj
@@ -27,6 +27,7 @@
     <Compile Include="Integration\MultiplePathsTests.fs" />
     <Compile Include="Integration\WriteTests.fs" />
     <Compile Include="Integration\DaemonTests.fs" />
+    <Compile Include="Integration\ForceTests.fs" />
   </ItemGroup>
   <Import Project="..\..\.paket\Paket.Restore.targets" />
 </Project>
diff --git a/src/Fantomas.Tests/Integration/ForceTests.fs b/src/Fantomas.Tests/Integration/ForceTests.fs
@@ -0,0 +1,44 @@
+module Fantomas.Tests.Integration.ForceTests
+
+open System.IO
+open NUnit.Framework
+open FsUnit
+open Fantomas.Tests.TestHelpers
+
+// The day this test fails because Fantomas can format the file, is the day you can remove this file.
+
+[<Test>]
+let ``code that was invalid should be still be written`` () =
+    let pwd = Path.GetDirectoryName(typeof<TemporaryFileCodeSample>.Assembly.Location)
+
+    let sourceFile =
+        Path.Combine(
+            pwd,
+            "..",
+            "..",
+            "..",
+            "..",
+            "..",
+            "paket-files",
+            "dotnet",
+            "fsharp",
+            "src",
+            "Compiler",
+            "Checking",
+            "CheckDeclarations.fs"
+        )
+
+    use outputFixture = new OutputFile()
+
+    let { ExitCode = exitCode; Output = output } =
+        runFantomasTool $"--force --out {outputFixture.Filename} {sourceFile}"
+
+    exitCode |> should equal 0
+
+    output
+    |> should contain "was not valid after formatting"
+
+    output |> should contain "has been written"
+
+    File.Exists outputFixture.Filename
+    |> should equal true
diff --git a/src/Fantomas.Tests/Integration/MultiplePathsTests.fs b/src/Fantomas.Tests/Integration/MultiplePathsTests.fs
@@ -36,42 +36,6 @@ let ``format multiple paths`` () =
     fileContentMatches FormattedCode fileFixtureOne.Filename
     fileContentMatches FormattedCode fileFixtureTwo.Filename
 
-[<Test>]
-let ``format multiple paths cannot be combined with --out`` () =
-    use config = new ConfigurationFile("[*]\nend_of_line = lf")
-
-    use fileFixtureOne = new TemporaryFileCodeSample(UserCode)
-
-    use fileFixtureTwo = new TemporaryFileCodeSample(UserCode)
-
-    let arguments =
-        sprintf "\"%s\" \"%s\" --out \"some Folder\"" fileFixtureOne.Filename fileFixtureTwo.Filename
-
-    let { ExitCode = exitCode; Error = error } = runFantomasTool arguments
-
-    exitCode |> should equal 1
-
-    error
-    |> should contain "--stdout and --out cannot be combined with multiple files."
-
-[<Test>]
-let ``format multiple paths cannot be combined with --stdout`` () =
-    use config = new ConfigurationFile("[*]\nend_of_line = lf")
-
-    use fileFixtureOne = new TemporaryFileCodeSample(UserCode)
-
-    use fileFixtureTwo = new TemporaryFileCodeSample(UserCode)
-
-    let arguments =
-        sprintf "\"%s\" \"%s\" --stdout" fileFixtureOne.Filename fileFixtureTwo.Filename
-
-    let { ExitCode = exitCode; Error = error } = runFantomasTool arguments
-
-    exitCode |> should equal 1
-
-    error
-    |> should contain "--stdout and --out cannot be combined with multiple files."
-
 [<Test>]
 let ``format multiple paths with recursive flag`` () =
     use config = new ConfigurationFile("[*]\nend_of_line = lf")

diff --git a/src/Fantomas/Format.fs b/src/Fantomas/Format.fs
@@ -32,6 +32,7 @@ exception CodeFormatException of (string * Option<Exception>) array with
 type FormatResult =
     | Formatted of filename: string * formattedContent: string
     | Unchanged of filename: string
+    | InvalidCode of filename: string * formattedContent: string
     | Error of filename: string * formattingError: Exception
     | IgnoredFile of filename: string
 
@@ -64,10 +65,9 @@ let private formatContentInternalAsync
                     let! isValid = CodeFormatter.IsValidFSharpCodeAsync(isSignatureFile, formattedContent)
 
                     if not isValid then
-                        raise
-                        <| FormatException "Formatted content is not valid F# code"
-
-                    return Formatted(filename = file, formattedContent = formattedContent)
+                        return InvalidCode(filename = file, formattedContent = formattedContent)
+                    else
+                        return Formatted(filename = file, formattedContent = formattedContent)
                 else
                     return Unchanged(filename = file)
             with ex ->
@@ -94,37 +94,6 @@ let private formatFileInternalAsync (compareWithoutLineEndings: bool) (file: str
 
 let formatFileAsync = formatFileInternalAsync false
 
-let formatFilesAsync files =
-    files |> Seq.map formatFileAsync |> Async.Parallel
-
-let formatCode files =
-    async {
-        let! results = formatFilesAsync files
-
-        // Check for formatting errors:
-        let errors =
-            results
-            |> Array.choose (fun x ->
-                match x with
-                | Error (file, ex) -> Some(file, Some(ex))
-                | _ -> None)
-
-        if not <| Array.isEmpty errors then
-            raise <| CodeFormatException errors
-
-        // Overwrite source files with formatted content
-        let result =
-            results
-            |> Array.choose (fun x ->
-                match x with
-                | Formatted (source, formatted) ->
-                    File.WriteAllText(source, formatted)
-                    Some source
-                | _ -> None)
-
-        return result
-    }
-
 type CheckResult =
     { Errors: (string * exn) list
       Formatted: string list }
@@ -159,7 +128,8 @@ let checkCode (filenames: seq<string>) =
             | FormatResult.Unchanged _
             | FormatResult.IgnoredFile _ -> None
             | FormatResult.Formatted (f, _)
-            | FormatResult.Error (f, _) -> Some f
+            | FormatResult.Error (f, _)
+            | FormatResult.InvalidCode (f, _) -> Some f
 
         let changes =
             formatted