Rename default branch to main

.github/workflows/L10n-update.yml

@@ -3,7 +3,7 @@ name: L10n Update
 on:
   push:
     branches:
-      - master
+      - main
 
 jobs:
   trigger-update:

.github/workflows/php.yml

@@ -3,11 +3,11 @@ name: PHP Tests
 on:
   push:
     branches:
-      - master
+      - main
       - release/*
   pull_request:
     branches:
-      - master
+      - main
 
 jobs:
   lint:

CONTRIBUTING.md

@@ -49,7 +49,7 @@ Add a new remote `upstream` with this repository as value.
 git remote add upstream https://github.com/icinga/icingadb-web.git
 ```
 
-You can pull updates to your fork's master branch:
+You can pull updates to your fork's default branch:
 
 ```
 git fetch --all
@@ -103,15 +103,15 @@ Don't worry, you can squash those changes into a single commit later on.
 
 ## Pull Requests
 
-Once you've committed your changes, please update your local master
+Once you've committed your changes, please update your local default
 branch and rebase your fix/feature branch against it before submitting a PR.
 
 ```
-git checkout master
+git checkout main
 git pull upstream HEAD
 
 git checkout fix/style-detail-view-5678
-git rebase master
+git rebase main
 ```
 
 Once you've resolved any conflicts, push the branch to your remote repository.
@@ -147,22 +147,22 @@ Thanks a lot for your contribution!
 
 ### Rebase a Branch
 
-If you accidentally sent in a PR which was not rebased against the upstream master,
+If you accidentally sent in a PR which was not rebased against the upstream default branch,
 developers might ask you to rebase your PR.
 
-First off, fetch and pull `upstream` master.
+First off, fetch and pull the default branch.
 
 ```
-git checkout master
+git checkout main
 git fetch --all
 git pull upstream HEAD
 ```
 
-Then change to your working branch and start rebasing it against master:
+Then change to your working branch and start rebasing it against the default:
 
 ```
 git checkout fix/style-detail-view-5678
-git rebase master
+git rebase main
 ```
 
 If you are running into a conflict, rebase will stop and ask you to fix the problems.
@@ -195,7 +195,7 @@ If you fear to break things, do the rebase in a backup branch first and later re
 git checkout fix/style-detail-view-5678
 git checkout -b fix/style-detail-view-5678-rebase
 
-git rebase master
+git rebase main
 
 git branch -D fix/style-detail-view-5678
 git checkout -b fix/style-detail-view-5678

README.md

@@ -1,7 +1,7 @@
 # Icinga DB Web
 
 [![PHP Support](https://img.shields.io/badge/php-%3E%3D%207.2-777BB4?logo=PHP)](https://php.net/)
-![Build Status](https://github.com/icinga/icingaweb2-module-icingadb/workflows/PHP%20Tests/badge.svg?branch=master)
+![Build Status](https://github.com/icinga/icingaweb2-module-icingadb/workflows/PHP%20Tests/badge.svg?branch=main)
 [![Github Tag](https://img.shields.io/github/tag/Icinga/icingaweb2-module-icingadb.svg)](https://github.com/Icinga/icingaweb2-module-icingadb)
 
 Icinga DB is a set of components for publishing, synchronizing and