support some variables in config (fixes #35)

package.json

@@ -82,7 +82,7 @@
  "items": {
  "type": "string"
  },
- "description": "Extra commandline options to be passed to PHPStan"
+ "description": "Extra commandline options to be passed to PHPStan. Supports substituting ${workspaceFolder}"
  },
  "phpstan.enableStatusBar": {
  "type": "boolean",

server/src/lib/phpstan/configManager.ts

@@ -1,3 +1,4 @@
+import { replaceVariables } from '../variables';
 import { showErrorOnce } from '../errorUtil';
 import { getConfiguration } from '../config';
 import type { ClassConfig } from './manager';
@@ -234,7 +235,9 @@ export class ConfigurationManager {
  configFile
  )
  : null,
- args: extensionConfig.options ?? [],
+ args: (extensionConfig.options ?? []).map((arg) =>
+ replaceVariables(arg, this._config)
+ ),
  memoryLimit: extensionConfig.memoryLimit,
  ...binConfig,
  };

server/src/lib/variables.ts

@@ -0,0 +1,13 @@
+import type { ClassConfig } from './phpstan/manager';
+
+export function replaceVariables(str: string, config: ClassConfig): string {
+ return str.replace(/\${workspaceFolder}/g, () => {
+ const workspaceFolder = config.getWorkspaceFolder();
+ if (!workspaceFolder) {
+ throw new Error(
+ 'workspaceFolder is not set but is used in a variable'
+ );
+ }
+ return workspaceFolder.fsPath;
+ });
+}

shared/commands/defs.ts

@@ -84,7 +84,8 @@ export const config = {
  items: {
  type: 'string',
  },
- description: 'Extra commandline options to be passed to PHPStan',
+ description:
+ 'Extra commandline options to be passed to PHPStan. Supports substituting ${workspaceFolder}',
  },
  },
  'phpstan.enableStatusBar': {