Add schedule for nightly, remove sysroot caching

.github/actions/build-for-distribution/action.yml

@@ -28,7 +28,6 @@ runs:
     with:
       swift-tag: ${{ inputs.swift-tag }}
       swift-workspace-cache: ${{ inputs.swift-workspace-cache }}
-      sysroot-id: sysroot-${{ inputs.distribution }}
       sysroot-name: sysroot-${{ inputs.distribution }}-armv7
       distribution: ${{ inputs.distribution }}
       builder-tag: ${{ inputs.builder-tag }}

.github/actions/build-with-sysroot/action.yml

@@ -7,9 +7,6 @@ inputs:
   swift-workspace-cache:
     description: The name of the Swift workspace directory to restore
     required: true
-  sysroot-id:
-    description: The sysroot ID to use when caching and publishing
-    required: true
   sysroot-name:
     description: The name of the sysroot to use to build Swift
     required: true
@@ -22,28 +19,14 @@ inputs:
 runs:
   using: "composite"
   steps:
-  - name: Restore Sysroot
-    id: restore-sysroot
-    uses: actions/cache/restore@v4
-    with:
-      key: ${{ inputs.sysroot-id }}
-      path: ${{ inputs.sysroot-name }}
-  - if: ${{ steps.restore-sysroot.outputs.cache-hit != 'true' }}
-    name: Build
+  - name: Build
     shell: bash
     env:
       DISTRIBUTION: ${{ inputs.distribution }}
     run: ./build-sysroot.sh `echo ${DISTRIBUTION/-/:}` ${{ inputs.sysroot-name }}
   - name: Compress
     shell: bash
     run: tar -czf ${{ inputs.sysroot-name }}.tar.gz ${{ inputs.sysroot-name }}
-  - name: Cache Sysroot
-    id: cache-sysroot
-    if: steps.restore-sysroot.outputs.cache-hit != 'true'
-    uses: actions/cache/save@v4
-    with:
-      key: ${{ inputs.sysroot-id }}
-      path: ${{ inputs.sysroot-name }}
   - name: Build Swift
     shell: bash
     run: |

.github/workflows/build-swift-nightly.yml

@@ -1,10 +1,9 @@
 name: Build Swift Nightly
 
 on:
-  push:
-    branches: [ "feature/swift-6.1" ]
   pull_request:
-    branches: [ "main" ]
+  schedule:
+    - cron: '0 21 * * *'
 
 env:
   DISTRIBUTION: debian-bookworm