Fast exit in travis if any task fails

Author: Munter

.travis.yml

@@ -25,11 +25,11 @@ jobs:
       before_install: npm install --global yarn
       install: yarn
       script:
-        - yarn lint:js
-        - yarn lint:markdown
-        - yarn lint:social
-        - yarn build
-        - yarn lint:links
+        - yarn lint:js || travis_terminate 1
+        - yarn lint:markdown || travis_terminate 1
+        - yarn lint:social || travis_terminate 1
+        - yarn build || travis_terminate 1
+        - yarn lint:links || travis_terminate 1
 
     - stage: Build
       name: Proselint

src/utilities/fetch-package-readmes.js

@@ -57,6 +57,9 @@ async function main() {
           await writeFile(fileName, headmatter + body);
 
           console.log('Generated:', path.relative(cwd, fileName));
+        })
+        .catch(err => {
+          throw err;
         });
     }
   }