Added postError function for short error notifications. Using existsSync to check if binary exists. Seperated onConfigChange into different functions. lineNum -2 for windows instead of -1 for linux, such a pain.

server/src/config.ts

@@ -1,10 +1,9 @@
 import { connection, documents, onEvent } from './server'
-import { exec, execSync } from 'child_process'
-import { extname } from 'path'
 import fetch from 'node-fetch'
 import { platform } from 'os'
-import { createWriteStream, chmodSync, createReadStream, unlinkSync } from 'fs'
+import { createWriteStream, chmodSync, createReadStream, unlinkSync, existsSync } from 'fs'
 import * as unzip from 'unzip'
+import { postError } from './utils'
 
 const url = {
   'win32': 'https://github.com/KhronosGroup/glslang/releases/download/master-tot/glslang-master-windows-x64-Release.zip',
@@ -17,18 +16,22 @@ export interface Config {
   readonly glslangPath: string
 }
 
-export let conf: Partial<Config> = {}
+export let conf: Config = {shaderpacksPath: '', glslangPath: ''}
 
 export const onConfigChange = async (change) => {
   const temp = change.settings.mcglsl as Config
   conf = {shaderpacksPath: temp['shaderpacksPath'], glslangPath: temp['glslangValidatorPath']}
-  try {
+
-    execSync(conf.glslangPath)
+  if (existsSync(conf.glslangPath)) {
-    documents.all().forEach(document => onEvent)
+    documents.all().forEach(onEvent)
-  } catch (e) {
+  } else {
-    if (e.status !== 1) {
+    promptDownloadGlslang()
+  }
+}
+
+async function promptDownloadGlslang() {
   const chosen = await connection.window.showErrorMessage(
-        `[mc-glsl] glslangValidator not found at: '${conf.glslangPath}' or returned non-0 code`,
+    `[mc-glsl] glslangValidator not found at: '${conf.glslangPath}'.`,
     {title: 'Download'},
     {title: 'Cancel'}
   )
@@ -36,10 +39,14 @@ export const onConfigChange = async (change) => {
   if (!chosen || chosen.title !== 'Download') return
 
   if (conf.shaderpacksPath === '') {
-        connection.window.showErrorMessage('Please set mcglsl.shaderpacksPath')
+    connection.window.showErrorMessage('Please set mcglsl.shaderpacksPath as this is where glslangValidator will be saved to.')
     return
   }
 
+  downloadGlslang()
+}
+
+async function downloadGlslang() {
   const res = await fetch(url[platform()])
 
   try {
@@ -49,7 +56,7 @@ export const onConfigChange = async (change) => {
     zip.on('finish', async () => {
       createReadStream(conf.shaderpacksPath + '/glslangValidator.zip')
         .pipe(unzip.Parse())
-            .on('entry', (entry) => {
+        .on('entry', entry => {
           if (entry.path === 'bin/glslangValidator') {
             entry.pipe(createWriteStream(conf.shaderpacksPath + '/glslangValidator'))
             return
@@ -64,8 +71,6 @@ export const onConfigChange = async (change) => {
         })
     })
   } catch (e) {
-        connection.window.showErrorMessage(e.message)
+    postError(e)
-      }
-    }
   }
 }

server/src/linter.ts

@@ -1,23 +1,27 @@
-import { TextDocument, Diagnostic, DiagnosticSeverity, Range } from 'vscode-languageserver'
+import { Diagnostic, DiagnosticSeverity, Range } from 'vscode-languageserver'
 import { connection, documents } from './server'
 import { execSync } from 'child_process'
 import * as path from 'path'
 import { readFileSync, existsSync } from 'fs'
 import { conf } from './config'
+import { postError } from './utils'
+import { platform } from 'os'
 
-const reDiag = /^(ERROR|WARNING): ([^?<>:*|"]+?):(\d+): (?:'.*?' : )?(.+)$/
+const reDiag = /^(ERROR|WARNING): ([^?<>:*|"]+?):(\d+): (?:'.*?' : )?(.+)[\r\n|\n]/
 const reVersion = /#version [\d]{3}/
 const reInclude = /^(?:\s)*?(?:#include) "((?:\/?[^?<>:*|"]+?)+?\.(?:[a-zA-Z]+?))"$/
 const reIncludeExt = /#extension GL_GOOGLE_include_directive ?: ?require/
 const include = '#extension GL_GOOGLE_include_directive : require'
+const win = platform() === 'win32'
 
 const filters = [
+  /stdin/,
   /(No code generated)/,
   /(compilation terminated)/,
   /Could not process include directive for header name:/
 ]
 
-const files = new Map<string, number>()
+const includeToParent = new Map<string, string[]>()
 
 type IncludeObj = {
   lineNum: number,
@@ -98,7 +102,7 @@ export function preprocess(lines: string[], docURI: string) {
   try {
     lint(docURI, lines, includeMap, diagnostics)
   } catch (e) {
-    console.log(e)
+    postError(e)
   }
 }
 
@@ -180,6 +184,7 @@ function mergeInclude(inc: IncludeObj, lines: string[], incStack: string[], diag
   // add #line indicating we are entering a new include block
   lines[inc.lineNumTopLevel] = `#line 0 "${inc.path}"`
   // merge the lines of the file into the current document
+  // TODO do we wanna use a DLL here?
   lines.splice(inc.lineNumTopLevel + 1, 0, ...dataLines)
   // add the closing #line indicating we're re-entering a block a level up
   lines.splice(inc.lineNumTopLevel + 1 + dataLines.length, 0, `#line ${inc.lineNum} "${inc.parent}"`)
@@ -205,7 +210,8 @@ function lint(uri: string, lines: string[], includes: Map<string, IncludeObj>, d
 
     let diag: Diagnostic = {
       severity: errorType(type),
-      range: calcRange(parseInt(line) - 1, file.length - 1 ? file : uri),
+      // had to do - 2 here instead of - 1, windows only perhaps?
+      range: calcRange(parseInt(line) - (win ? 2 : 1), file.length - 1 ? file : uri),
       message: replaceWord(msg),
       source: 'mc-glsl'
     }

server/src/server.ts

@@ -2,17 +2,12 @@ import * as vsclang from 'vscode-languageserver'
 import * as vsclangproto from 'vscode-languageserver-protocol'
 import { completions } from './completionProvider'
 import { preprocess, ext, formatURI } from './linter'
-import { exec, execSync } from 'child_process'
 import { extname } from 'path'
-import fetch from 'node-fetch'
-import { platform } from 'os'
-import { createWriteStream, chmodSync, createReadStream, unlinkSync } from 'fs'
-import * as unzip from 'unzip'
 
 export let connection: vsclang.IConnection
 connection = vsclang.createConnection(new vsclang.IPCMessageReader(process), new vsclang.IPCMessageWriter(process))
 
-import { Config, onConfigChange } from './config'
+import { onConfigChange } from './config'
 
 export const documents = new vsclang.TextDocuments()
 documents.listen(connection)

server/src/utils.ts

@@ -0,0 +1,6 @@
+import { connection } from './server'
+
+export function postError(e: Error) {
+    connection.window.showErrorMessage(e.message)
+    console.log(e)
+}