rename master to main (#130)

* rename `master` to `main`

* rename the CI, too

* [test-upstream] [skip-ci]

Author: keewis

.github/workflows/ci-additional.yml

@@ -3,10 +3,10 @@ name: CI Additional
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 jobs:
   doctests:

.github/workflows/ci.yml

@@ -3,9 +3,9 @@ name: CI
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
-    branches: [ master ]
+    branches: [ main ]
   workflow_dispatch:
 
 jobs:

.github/workflows/linting.yml

@@ -2,9 +2,9 @@ name: linting
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
-    branches: [ master ]
+    branches: [ main ]
   workflow_dispatch:
 
 

.github/workflows/nightly.yml

@@ -3,9 +3,9 @@ name: Nightly CI
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
-    branches: [ master ]
+    branches: [ main ]
   schedule:
     - cron: "0 0 * * *"  # Daily "At 00:00" UTC
   workflow_dispatch:

HOW_TO_RELEASE.rst

@@ -1,17 +1,17 @@
 Release process
 ===============
-1. the release happens from `master` so make sure it is up-to-date:
+1. the release happens from `main` so make sure it is up-to-date:
 
    .. code:: sh
 
-      git pull origin master
+      git pull origin main
 
 2. look at `whats-new.rst` and make sure it is complete and with
    references to issues and pull requests
 
 3. open and merge a pull request with these changes
 
-4. make sure the CI on master pass
+4. make sure the CI on main pass
 
 5. check that the documentation build on readthedocs completed successfully
 
@@ -21,7 +21,7 @@ Release process
 
       git commit -am "Release v0.X.Y"
 
-7. Tag the release and push to master:
+7. Tag the release and push to main:
 
    .. code:: sh
 
@@ -33,4 +33,4 @@ Release process
 
 9. Make sure readthedocs builds both `stable` and the new tag
 
-10. Add a new section to `whats-new.rst` and push directly to master
+10. Add a new section to `whats-new.rst` and push directly to main

README.md

@@ -1,5 +1,5 @@
-[![CI](https://github.com/xarray-contrib/pint-xarray/workflows/CI/badge.svg?branch=master)](https://github.com/xarray-contrib/pint-xarray/actions?query=branch%3Amaster)
-[![code coverage](https://codecov.io/gh/xarray-contrib/pint-xarray/branch/master/graph/badge.svg)](https://codecov.io/gh/xarray-contrib/pint-xarray)
+[![CI](https://github.com/xarray-contrib/pint-xarray/workflows/CI/badge.svg?branch=main)](https://github.com/xarray-contrib/pint-xarray/actions?query=branch%3Amain)
+[![code coverage](https://codecov.io/gh/xarray-contrib/pint-xarray/branch/main/graph/badge.svg)](https://codecov.io/gh/xarray-contrib/pint-xarray)
 [![docs](https://readthedocs.org/projects/pint-xarray/badge/?version=latest)](https://pint-xarray.readthedocs.io)
 [![PyPI version](https://img.shields.io/pypi/v/pint-xarray.svg)](https://pypi.org/project/pint-xarray)
 [![codestyle](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/python/black)