Trigger workflows only when necessary file changes are detected (#699)

* Trigger workflows only when necessary file changes are detected

* Address yamllint

* Trigger workflows even when workflow file itself is changed

* Also include `examples` directory, may be one day we will have tests for them

* `brew` and `docker` workflows must also only execute for python file changes.  This will skip them for pure README.md changes

* Execute `lib` workflows for package artifact changes

.github/workflows/test-brew.yml

@@ -1,7 +1,29 @@
 ---
 name: brew
 
-on: [push, pull_request]  # yamllint disable-line rule:truthy
+on:   # yamllint disable-line rule:truthy
+  push:
+    paths:
+    - 'proxy/**'
+    - 'tests/**'
+    - 'examples/**'
+    - 'requirements*'
+    - 'setup.cfg'
+    - 'version-check.py'
+    - 'MANIFEST.in'
+    - '.github/workflows/test-brew.yml'
+    - 'helper/homebrew/**'
+  pull_request:
+    paths:
+    - 'proxy/**'
+    - 'tests/**'
+    - 'examples/**'
+    - 'requirements*'
+    - 'setup.cfg'
+    - 'version-check.py'
+    - 'MANIFEST.in'
+    - '.github/workflows/test-brew.yml'
+    - 'helper/homebrew/**'
 
 jobs:
   build:

.github/workflows/test-dashboard.yml

@@ -1,7 +1,15 @@
 ---
 name: dashboard
 
-on: [push, pull_request]  # yamllint disable-line rule:truthy
+on:   # yamllint disable-line rule:truthy
+  push:
+    paths:
+    - 'dashboard/**'
+    - '.github/workflows/test-dashboard.yml'
+  pull_request:
+    paths:
+    - 'dashboard/**'
+    - '.github/workflows/test-dashboard.yml'
 
 jobs:
   build:

.github/workflows/test-docker.yml

@@ -1,7 +1,29 @@
 ---
 name: docker
 
-on: [push, pull_request]  # yamllint disable-line rule:truthy
+on:   # yamllint disable-line rule:truthy
+  push:
+    paths:
+    - 'proxy/**'
+    - 'tests/**'
+    - 'examples/**'
+    - 'requirements*'
+    - 'setup.cfg'
+    - 'version-check.py'
+    - 'MANIFEST.in'
+    - '.github/workflows/test-docker.yml'
+    - 'Dockerfile'
+  pull_request:
+    paths:
+    - 'proxy/**'
+    - 'tests/**'
+    - 'examples/**'
+    - 'requirements*'
+    - 'setup.cfg'
+    - 'version-check.py'
+    - 'MANIFEST.in'
+    - '.github/workflows/test-docker.yml'
+    - 'Dockerfile'
 
 jobs:
   build:

.github/workflows/test-library.yml

@@ -1,7 +1,27 @@
 ---
 name: lib
 
-on: [push, pull_request]  # yamllint disable-line rule:truthy
+on:   # yamllint disable-line rule:truthy
+  push:
+    paths:
+    - 'proxy/**'
+    - 'tests/**'
+    - 'examples/**'
+    - 'requirements*'
+    - 'setup.cfg'
+    - 'version-check.py'
+    - 'MANIFEST.in'
+    - '.github/workflows/test-library.yml'
+  pull_request:
+    paths:
+    - 'proxy/**'
+    - 'tests/**'
+    - 'examples/**'
+    - 'requirements*'
+    - 'setup.cfg'
+    - 'version-check.py'
+    - 'MANIFEST.in'
+    - '.github/workflows/test-library.yml'
 
 concurrency:
   group: >-