fix: add handling for no output root

Closes #60

src/commands/push.ts

@@ -100,7 +100,7 @@ export default class Push {
 
     directories.forEach(dir => {
       if (dir) {
-        const files = glob.sync(`${config.output.root}/${dir}/**/*.sql`);
+        const files = glob.sync(`${config.getRoot()}/${dir}/**/*.sql`);
         output.push(...files);
       }
     });

src/common/cache.ts

@@ -36,7 +36,7 @@ export default class Cache implements ICache {
     }
 
     try {
-      const file = path.join(this.config.output.root, Cache.defaultCacheFile);
+      const file = path.join(this.config.getRoot(), Cache.defaultCacheFile);
       const cache: ICache = fs.readJsonSync(file);
 
       this.files = cache.files;
@@ -84,7 +84,7 @@ export default class Cache implements ICache {
    * Write a config file with provided configuration.
    */
   write() {
-    const file = path.join(this.config.output.root, Cache.defaultCacheFile);
+    const file = path.join(this.config.getRoot(), Cache.defaultCacheFile);
     const content: ICache = { files: this.files };
 
     fs.writeJson(file, content, { spaces: 2 });
@@ -94,7 +94,7 @@ export default class Cache implements ICache {
    * Check if default cache file exists.
    */
   private doesDefaultExist() {
-    const file = path.join(this.config.output.root, Cache.defaultCacheFile);
+    const file = path.join(this.config.getRoot(), Cache.defaultCacheFile);
 
     return fs.existsSync(file);
   }

src/common/config.ts

@@ -144,6 +144,19 @@ export default class Config implements IConfig {
     views: 'if-exists-drop'
   };
 
+  /**
+   * Get root output directory.
+   */
+  getRoot() {
+    let root = this.output.root;
+
+    if (!root || root === '.') {
+      root = './';
+    }
+
+    return root;
+  }
+
   /**
    * Get a connection by name, or the first available if `name` is not provided.
    *

src/common/file-utility.ts

@@ -70,7 +70,7 @@ export default class FileUtility {
       return;
     }
 
-    file = path.join(this.config.output.root, dir, file);
+    file = path.join(this.config.getRoot(), dir, file);
     content = content.trim();
 
     const cacheKey = this.normalize(file);
@@ -160,7 +160,9 @@ export default class FileUtility {
    * @param file File path to normalize.
    */
   private normalize(file: string) {
-    if (this.config.output.root.startsWith('./') && !file.startsWith('./')) {
+    const root = this.config.getRoot();
+
+    if (root.startsWith('./') && !file.startsWith('./')) {
       file = `./${file}`;
     }
 
@@ -171,7 +173,7 @@ export default class FileUtility {
    * Load existing files and cache for comparison.
    */
   private load() {
-    this.existingFiles = glob.sync(`${this.config.output.root}/**/*.sql`);
+    this.existingFiles = glob.sync(`${this.config.getRoot()}/**/*.sql`);
     this.existingCache.load();
   }
 }