feat: signed releases, release feed, notification (read-only)

Taskfile.yml

@@ -122,14 +122,37 @@ tasks:
       - go build -trimpath -ldflags "{{.LDFLAGS}}" -o bin/{{.BINARY}}{{exeExt}} ./cmd/server
 
   release:
-    desc: Cross-compile production binaries for all release targets → bin/
-    deps: [build:web]
+    desc: Cross-compile and sign production binaries for all release targets → bin/ (needs RELEASE_SIGNING_KEY)
     cmds:
+      - task: release:check
+      - task: build:web
       - for: { var: RELEASE_TARGETS }
         task: build:target
         vars:
           GOOS: '{{index (splitList "/" .ITEM) 0}}'
           GOARCH: '{{index (splitList "/" .ITEM) 1}}'
+      - go run ./cmd/releasesign checksums bin --match "{{.BINARY}}_{{.VERSION}}_*"
+      - go run ./cmd/releasesign sign bin/checksums.txt
+      - go run ./cmd/releasesign verify bin/checksums.txt
+
+  release:check:
+    internal: true
+    cmds:
+      - cmd: 'test -n "$RELEASE_SIGNING_KEY" || { echo "RELEASE_SIGNING_KEY is not set. Point it at the private release key file (see task release:keygen)." >&2; exit 1; }'
+        silent: true
+      - cmd: 'test -f "$RELEASE_SIGNING_KEY" || { echo "RELEASE_SIGNING_KEY points to a missing file: $RELEASE_SIGNING_KEY" >&2; exit 1; }'
+        silent: true
+      - mkdir -p tmp
+      - echo probe > tmp/release-probe.txt
+      - defer: rm -f tmp/release-probe.txt tmp/release-probe.txt.sig
+      - go run ./cmd/releasesign sign tmp/release-probe.txt
+
+  release:keygen:
+    desc: One-time release key pair. Usage, task release:keygen -- <private key path outside the repository>
+    cmds:
+      - cmd: 'test -n "{{.CLI_ARGS}}" || { echo "usage: task release:keygen -- <private key path outside the repository>" >&2; exit 1; }'
+        silent: true
+      - go run ./cmd/releasesign keygen {{.CLI_ARGS}}
 
   build:target:
     internal: true