Ignore '/docs' on some GH actions, give docs its own action

.github/workflows/prefer-typescript.yml

@@ -2,6 +2,8 @@ name: Prefer TypeScript
 
 on:
   pull_request:
+    paths-ignore:
+      - 'docs/**'
     branches:
       - master
 

.github/workflows/superset-docs.yml

@@ -0,0 +1,30 @@
+name: Docs
+
+on:
+  push:
+    paths:
+      - 'docs/**'
+  pull_request:
+    paths:
+      - 'docs/**'
+
+jobs:
+  docs:
+    name: build
+    runs-on: ubuntu-18.04
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+    - name: Install dependencies
+    - name: npm install
+      working-directory: ./docs
+      run: |
+        npm install
+    - name: lint
+      working-directory: ./docs
+      run: |
+        npm run lint
+    - name: gatsby build
+      working-directory: ./docs
+      run: |
+        npm run build

.github/workflows/superset-e2e.yml

@@ -1,6 +1,12 @@
 name: E2E
 
-on: [push, pull_request]
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
 
 jobs:
   Cypress:

.github/workflows/superset-frontend.yml

@@ -1,6 +1,12 @@
 name: Frontend
 
-on: [push, pull_request]
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
 
 jobs:
   build:
@@ -25,18 +31,3 @@ jobs:
       working-directory: ./superset-frontend
       run: |
         bash <(curl -s https://codecov.io/bash) -cF javascript
-
-  docs:
-    name: build
-    runs-on: ubuntu-18.04
-    steps:
-    - name: Checkout code
-      uses: actions/checkout@v2
-    - name: Install dependencies
-      working-directory: ./superset-frontend
-      run: |
-        npm install
-    - name: gatsby build
-      working-directory: ./superset-frontend
-      run: |
-        npm run build

.github/workflows/superset-python.yml

@@ -1,7 +1,13 @@
 # Python unit tests
 name: Python
 
-on: [push, pull_request]
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
 
 jobs:
   lint:

.github/workflows/test-hive.yml

@@ -1,6 +1,12 @@
 name: Hive
 
-on: [push, pull_request]
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
 
 jobs:
   test-postgres-hive:

.github/workflows/test-presto.yml

@@ -1,6 +1,12 @@
 name: Presto
 
-on: [push, pull_request]
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
 
 jobs:
   test-postgres-presto:

docs/src/pages/404.jsx

@@ -25,7 +25,7 @@ const NotFoundPage = () => (
   <Layout>
     <SEO title="404: Not found" />
     <h1>NOT FOUND</h1>
-    <p>You just hit a route that does not exist... the sadness.</p>
+    <p>Sorry, you've requested a page that does not exist.</p>
   </Layout>
 );