fix getProjectRootPath

package.json

@@ -38,7 +38,7 @@
     "npm-run-all": "^4.1.1",
     "rimraf": "^2.6.1",
     "tslint": "^5.7.0",
-    "typescript": "^2.5.2"
+    "typescript": "^2.6.1"
   },
   "peerDependencies": {
     "graphql": "^0.10.2",

src/schema-manager/file-schema-manager.ts

@@ -18,7 +18,7 @@ export class FileSchemaManager extends SchemaManager {
   getSchema() {
     if (!this._schemaPath || typeof this._schemaPath !== 'string') return;
     try {
-      const resolvedSchmaPath = this.getAbsoluteSchemaPath(this._info.project.getProjectRootPath(), this._schemaPath);
+      const resolvedSchmaPath = this.getAbsoluteSchemaPath(this._getProjectRootPath(this._info), this._schemaPath);
       this.log('Read schema from ' + resolvedSchmaPath);
       const isExists = this._info.languageServiceHost.fileExists(resolvedSchmaPath);
       if (!isExists) return;
@@ -37,7 +37,7 @@ export class FileSchemaManager extends SchemaManager {
 
   startWatch(interval: number = 100) {
     try {
-      const resolvedSchmaPath = this.getAbsoluteSchemaPath(this._info.project.getProjectRootPath(), this._schemaPath);
+      const resolvedSchmaPath = this.getAbsoluteSchemaPath(this._getProjectRootPath(this._info), this._schemaPath);
       this._watcher = this._info.serverHost.watchFile(resolvedSchmaPath, () => {
         this._log('Change schema file.');
         this.emitChange();
@@ -53,6 +53,14 @@ export class FileSchemaManager extends SchemaManager {
     if (this._watcher) this._watcher.close();
   }
 
+  private _getProjectRootPath(info: ts.server.PluginCreateInfo) {
+    const { project } = info;
+    if (typeof (project as any).getProjectRootPath === 'function') {
+      return (project as any).getProjectRootPath();
+    }
+    return path.dirname(project.getProjectName());
+  }
+
   private _log(msg: string) {
     this._info.project.projectService.logger.info(`[ts-graphql-plugin] ${msg}`);
   }

yarn.lock

@@ -2951,9 +2951,9 @@ tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   version "0.14.5"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
 
-typescript@^2.5.2:
-  version "2.5.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.5.2.tgz#038a95f7d9bbb420b1bf35ba31d4c5c1dd3ffe34"
+typescript@^2.6.1:
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.6.1.tgz#ef39cdea27abac0b500242d6726ab90e0c846631"
 
 uid-number@^0.0.6:
   version "0.0.6"