chore: rename master to main (googleapis#837)

Author: noahdietz

.github/sync-repo-settings.yaml

@@ -2,7 +2,7 @@ rebaseMergeAllowed: true
 squashMergeAllowed: true
 mergeCommitAllowed: false
 branchProtectionRules:
-- pattern: master
+- pattern: main
   isAdminEnforced: true
   requiredStatusCheckContexts:
     - 'bazel-build'

.github/workflows/ci.yaml

@@ -3,7 +3,7 @@ name: Generator tests
 on:
   push:
     branches:
-      - master
+      - main
       - diregapic-dev-branch
   pull_request:
 

.github/workflows/deps.yaml

@@ -9,7 +9,7 @@ on:
       - showcase/go.sum
 jobs:
   update-bazel-deps:
-    if: github.ref == 'refs/heads/master'
+    if: github.ref == 'refs/heads/main'
     outputs:
       changed: ${{ steps.update.outputs.changed }}
     runs-on: ubuntu-latest
@@ -43,7 +43,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
       with:
-        ref: master
+        ref: main
     - uses: actions/download-artifact@v2
       with:
         name: repositories
@@ -61,7 +61,7 @@ jobs:
         description: 'Updated Go dependencies for Bazel repositories.'
         title: 'chore: update Bazel Go deps'
         message: 'chore: update Bazel Go deps'
-        primary: 'master'
+        primary: 'main'
         labels: |
           automerge
         branch: update-bazel-deps

README.md

@@ -105,16 +105,16 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
 http_archive(
     name = "com_googleapis_gapic_generator_go",
-    strip_prefix = "gapic-generator-go-master",
-    urls = ["https://github.com/googleapis/gapic-generator-go/archive/master.zip"],
+    strip_prefix = "gapic-generator-go-main",
+    urls = ["https://github.com/googleapis/gapic-generator-go/archive/main.zip"],
 )
 
 load("@com_googleapis_gapic_generator_go//:repositories.bzl", "com_googleapis_gapic_generator_go_repositories")
 
 com_googleapis_gapic_generator_go_repositories()
 ```
 
-_Note: do not use `master`, use a commit hash or a release tag._
+_Note: do not use `main`, use a commit hash or a release tag._
 
 And invoke it in a BUILD file like so, using an example based on the [googleapis repo](https://github.com/googleapis/googleapis/tree/92bebf78345af8b2d3585220527115bda8bdedf8/google/cloud/language/v1).