ci: add s3 cache

.woodpecker.yml

@@ -1,4 +1,25 @@
 pipeline:
+  cache:get:
+    image: meltwater/drone-cache:v1
+    pull: true
+    settings:
+      restore: true
+      endpoint:
+        from_secret: S3_ENDPOINT
+      access-key:
+        from_secret: S3_ACCESS_KEY
+      secret-key:
+        from_secret: S3_SECRET_KEY
+      bucket: "upend-ci-cache"
+      cache_key: "{{ .Commit.Branch }}"
+      path-style: true
+      mount:
+        - ".cargo"
+        - ".pnpm"
+    secrets: [S3_ENDPOINT, S3_ACCESS_KEY, S3_SECRET_KEY]
+    when:
+      event: push
+
   prepare:cache:frontend:
     group: init
     image: albedo.lan:5000/upend-node:latest
@@ -13,7 +34,7 @@ pipeline:
     environment:
       CARGO_HOME: ${CI_WORKSPACE}/.cargo
     commands:
-      - cp -r /usr/local/cargo $CARGO_HOME
+      - test -d $CARGO_HOME || cp -r /usr/local/cargo $CARGO_HOME
 
   prepare:build:wasmlib:
     image: albedo.lan:5000/upend-rust:latest
@@ -112,6 +133,27 @@ pipeline:
     # volumes:
     #   - rust_registry:/usr/local/cargo
 
+  cache:push:
+    image: meltwater/drone-cache:v1
+    pull: true
+    settings:
+      rebuild: true
+      endpoint:
+        from_secret: S3_ENDPOINT
+      access-key:
+        from_secret: S3_ACCESS_KEY
+      secret-key:
+        from_secret: S3_SECRET_KEY
+      bucket: "upend-ci-cache"
+      cache_key: "{{ .Commit.Branch }}"
+      path-style: true
+      mount:
+        - ".cargo"
+        - ".pnpm"
+    secrets: [S3_ENDPOINT, S3_ACCESS_KEY, S3_SECRET_KEY]
+    when:
+      event: push
+
   package:
     image: albedo.lan:5000/upend-deploy:latest
     pull: true