Convert master branch to use main (#3559)

Author: bluemarvin

.taskcluster.yml

@@ -50,20 +50,20 @@ tasks:
           owner: [email protected]
           source: ${repository}
 ###############################################################################
-# Task: Master builds
+# Task: Main builds
 #
-# Triggered whenever something is pushed/merged to the master branch.
+# Triggered whenever something is pushed/merged to the main branch.
 # Produces APKs signed with the staging key. These APKs are for
 # testing only and should not be uploaded to App Stores.
 #
 ###############################################################################
-    - $if: 'tasks_for == "github-push" && (event["ref"] == "refs/heads/master" || isFeatureBranch == true)'
+    - $if: 'tasks_for == "github-push" && (event["ref"] == "refs/heads/main" || isFeatureBranch == true)'
       then:
         $let:
           featureName:
             $if: 'isFeatureBranch == true'
             then: "-f ${event.ref[19:]}"
-            else: "-f master"
+            else: "-f main"
         in:
           provisionerId: 'proj-firefoxreality'
           workerType: 'ci-linux'
@@ -76,7 +76,7 @@ tasks:
             - "secrets:get:project/firefoxreality/fr/mls-key"
           routes:
             - [email protected]
-            - index.project.firefoxreality.master
+            - index.project.firefoxreality.main
           payload:
             maxRunTime: 14400
             image: 'mozillamixedreality/firefoxreality:200316-SDK29'

CONTRIBUTING.md

@@ -13,7 +13,7 @@ Head over to [Good First Bugs](https://github.com/MozillaReality/FirefoxReality/
 
 ## Pull Request Checklist
 
-- Branch from the [master](https://github.com/mozillareality/firefoxreality/tree/master) branch and, if needed, [rebase](https://help.github.com/en/articles/about-git-rebase) to the current master branch before submitting your pull request. If it doesn't merge cleanly with master, you may be asked to [rebase](https://help.github.com/en/articles/about-git-rebase) your changes.
+- Branch from the [main](https://github.com/mozillareality/firefoxreality/tree/main) branch and, if needed, [rebase](https://help.github.com/en/articles/about-git-rebase) to the current main branch before submitting your pull request. If it doesn't merge cleanly with main, you may be asked to [rebase](https://help.github.com/en/articles/about-git-rebase) your changes.
 
 - Commits should be as small as possible, while ensuring that each commit is correct independently (i.e., each commit should compile and pass tests). 
 

README.md

@@ -6,7 +6,7 @@ You can find us in [#fxr:mozilla.org on the Matrix](https://chat.mozilla.org/#/r
 
 ## Download developer APKs
 
-**[Download](https://community-tc.services.mozilla.com/tasks/index/project.firefoxreality/master)** developer APKs for Firefox Reality generated from latest [master](https://github.com/MozillaReality/FirefoxReality/commits/master).
+**[Download](https://community-tc.services.mozilla.com/tasks/index/project.firefoxreality/main)** developer APKs for Firefox Reality generated from latest [main](https://github.com/MozillaReality/FirefoxReality/commits/main).
 
 ## Locale support
 
@@ -39,7 +39,7 @@ This repo is only available to Mozilla employees. If you have access to the rele
 The [repo in `third_party`](https://github.com/MozillaReality/FirefoxReality-android-third-party) can be updated like so:
 
 ```bash
-pushd third_party && git fetch && git checkout master && git rebase origin/master && popd
+pushd third_party && git fetch && git checkout main && git rebase origin/main && popd
 ```
 
 *Fetch Git submodules.*

tools/docker/Dockerfile

@@ -60,12 +60,12 @@ RUN git config --global user.email "[email protected]"
 RUN git config --global user.name "No Reply"
 RUN echo sdk.dir=/opt > local.properties && echo ndk.dir=/opt/ndk-bundle >> local.properties
 RUN git checkout -b update origin/gradle
-RUN git rebase origin/master
+RUN git rebase origin/main
 RUN git submodule init
 RUN git submodule update
 RUN ./gradlew --no-daemon assembleNoapi
 RUN ./gradlew --no-daemon clean
-RUN git checkout master
+RUN git checkout main
 
 # -- Cleanup ----------------------------------------------------------------------------