Removes paths.ts which checks if binary is in PATH

This has now been replaced with `which` which is also platform agnostic.
The only difference is that `which` does not cache the result of the
query. However, realistically speaking calling which once per new
file being opened is a trivial cost.
Moreover, already opened files are cached automatically so no `which` calls
are made when changing between opened files.

Author: gnikit

package-lock.json

@@ -1,4 +1,5 @@
 // src/extension.ts
+import * as which from 'which'
 import * as vscode from 'vscode'
 
 import FortranLintingProvider from './features/linter-provider'
@@ -53,7 +54,10 @@ export function activate(context: vscode.ExtensionContext) {
     loggingService.logInfo('Symbol Provider is not enabled')
   }
 
-  if (checkForLangServer(extensionConfig)) {
+  // Our interface with `fortls` has been disabled in favour of the @hansec's
+  // VS Code extension Fortran IntelliSense
+  const useInternalFLInterface = false;
+  if (useInternalFLInterface) {
     const langServer = new FortranLangServer(context, extensionConfig)
     langServer.start()
     langServer.onReady().then(() => {

src/extension.ts

@@ -3,11 +3,10 @@ import {
   LanguageClientOptions,
   Executable,
 } from 'vscode-languageclient'
+import * as which from 'which'
 import * as vscode from 'vscode'
 import {
-  getBinPath,
   FORTRAN_FREE_FORM_ID,
-  promptForMissingTool,
 } from './lib/helper'
 import { LANG_SERVER_TOOL_ID } from './lib/tools'
 
@@ -18,7 +17,7 @@ export class FortranLangServer {
     let langServerFlags: string[] = config.get('languageServerFlags', [])
 
     const serverOptions: Executable = {
-      command: getBinPath(LANG_SERVER_TOOL_ID),
+      command: which.sync(LANG_SERVER_TOOL_ID),
       args: [...langServerFlags],
       options: {},
     }
@@ -48,23 +47,3 @@ export class FortranLangServer {
     return capabilities
   }
 }
-
-export function checkForLangServer(config) {
-  const useLangServer = false //config.get('useLanguageServer')
-  if (!useLangServer) return false
-  if (process.platform === 'win32') {
-    vscode.window.showInformationMessage(
-      'The Fortran language server is not supported on Windows yet.'
-    )
-    return false
-  }
-  let langServerAvailable = getBinPath(LANG_SERVER_TOOL_ID)
-  if (!langServerAvailable) {
-    promptForMissingTool(LANG_SERVER_TOOL_ID)
-    vscode.window.showInformationMessage(
-      'Reload VS Code window after installing the Fortran language server'
-    )
-  }
-  return true
-}
-

src/lang-server.ts

@@ -115,7 +115,6 @@ let saveKeywordToJson = keyword => {
   });
 };
 
-export { default as getBinPath } from './paths'
 
 export function promptForMissingTool(tool: string) {
   const items = ['Install'];

src/lib/helper.ts

@@ -1,9 +1,6 @@
 export const LANG_SERVER_TOOL_ID = 'fortran-langserver';
 import * as cp from 'child_process';
-export const toolBinNames = {
-  [LANG_SERVER_TOOL_ID]: 'fortls',
-  'gnu-compiler': 'gfortran',
-};
+
 
 export function installTool(toolname) {
   if (toolname === LANG_SERVER_TOOL_ID) {