Rename swift-ci folder to main (swiftlang#407)

* Move the folder from master -> main

* Remove .github/.DS_Store

* Add support for logs in GitHub Actions

* Prune after building docker images

Author: shahmishal

.github/.DS_Store

@@ -10,5 +10,14 @@ jobs:
      name: Build Docker images
      runs-on: ubuntu-latest
      steps:
-      - uses: actions/checkout@v4
-      - run: env && ./ci_test.py
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Build Docker images
+        run: ./ci_test.py
+      - name: Archive production artifacts
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: docker-logs
+          path: |
+            *.log

.github/workflows/pull_request.yml

@@ -69,15 +69,15 @@ def main():
         sys.stdout.flush()
         log_file = dockerfile.replace(docker_dir,"").replace("/", "_")
         log_file = "{}.log".format(log_file)
-        cmd = "docker build --no-cache=true --build-arg http_proxy={} --build-arg https_proxy={} {}".format(os.environ['http_proxy'], os.environ['https_proxy'], dockerfile)
+        cmd = f"docker build --no-cache=true {dockerfile}"
         if "buildx" in dockerfile:
             # if "buildx" is part of the path, we want to use the new buildx build system and build
             # for both amd64 and arm64.
-            cmd = "docker buildx create --use --driver-opt env.http_proxy={} --driver-opt env.https_proxy={}".format(os.environ['http_proxy'], os.environ['https_proxy'])
+            cmd = "docker buildx create --use"
             run_command(cmd, log_file)
             cmd = "docker buildx inspect --bootstrap"
             run_command(cmd, log_file)
-            cmd = "docker buildx build --platform linux/arm64,linux/amd64 --no-cache=true --build-arg env.http_proxy={} --build-arg env.https_proxy={} {}".format(os.environ['http_proxy'], os.environ['https_proxy'], dockerfile)
+            cmd = f"docker buildx build --platform linux/arm64,linux/amd64 --no-cache=true {dockerfile}"
         status = run_command(cmd, log_file)
         results[dockerfile] = status
         if status != 0:
@@ -90,6 +90,7 @@ def main():
         run_command(cmd)
         print("[{}] - {}".format(results[dockerfile], dockerfile))
         sys.stdout.flush()
+        run_command("docker image prune -f")
 
     for dockerfile in dockerfiles:
         if results[dockerfile] == "FAILED":