chore: Run repo-sync workflow only in source repo (#884)

* Run repo-sync workflow only in source repo + stop workflows from being triggered by new commit in main.

* Make workflows run if it's being run in public repo, or it was triggered by pull request.

---------

Co-authored-by: Sichan Yoo <[email protected]>

Author: sichanyoo

.github/workflows/codegen.yml

@@ -8,6 +8,7 @@ on:
 
 jobs:
   codegen:
+    if: github.repository == 'smithy-lang/smithy-swift' || github.event_name == 'pull_request'
     runs-on: ${{ matrix.os }}
     name: Java ${{ matrix.java }} ${{ matrix.os }}
     strategy:

.github/workflows/continuous-integration.yml

@@ -11,6 +11,7 @@ env:
 
 jobs:
   apple-ci:
+    if: github.repository == 'smithy-lang/smithy-swift' || github.event_name == 'pull_request'
     runs-on: ${{ matrix.runner }}
     strategy:
       fail-fast: false
@@ -103,6 +104,7 @@ jobs:
             | xcbeautify
 
   apple-downstream:
+    if: github.repository == 'smithy-lang/smithy-swift' || github.event_name == 'pull_request'
     runs-on: ${{ matrix.runner }}
     strategy:
       fail-fast: false
@@ -223,6 +225,7 @@ jobs:
             | xcbeautify
 
   linux-ci:
+    if: github.repository == 'smithy-lang/smithy-swift' || github.event_name == 'pull_request'
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
@@ -275,6 +278,7 @@ jobs:
         run: swift test
 
   linux-downstream:
+    if: github.repository == 'smithy-lang/smithy-swift' || github.event_name == 'pull_request'
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false

.github/workflows/lint.yml

@@ -8,6 +8,7 @@ on:
 
 jobs:
   ktlint:
+    if: github.repository == 'smithy-lang/smithy-swift' || github.event_name == 'pull_request'
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
@@ -16,6 +17,7 @@ jobs:
         run: ./gradlew ktlint
 
   swiftlint:
+    if: github.repository == 'smithy-lang/smithy-swift' || github.event_name == 'pull_request'
     runs-on: ubuntu-latest
     container:
       image: ghcr.io/realm/swiftlint:0.54.0

.github/workflows/repo-sync.yml

@@ -7,6 +7,7 @@ on:
 
 jobs:
   git-sync:
+    if: github.repository == 'smithy-lang/smithy-swift'
     runs-on: ubuntu-latest
 
     steps: