Add create yaml script

scripts/releasing/create-yaml-snippet.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+
+set -eu
+set -o pipefail
+
+RELEASE=$1
+
+get_sha() {
+    sha256sum "$1" | awk '{ print $1 }'
+}
+
+cd "gh-release-artifacts/v${RELEASE}"
+
+cat <<EOF > /dev/stdout
+  GHCup:
+    ${RELEASE}:
+      viTags:
+      - Recommended
+      - Latest
+      viChangeLog: https://github.com/haskell/ghcup-hs/blob/master/CHANGELOG.md
+      viSourceDL:
+        dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/ghcup-${RELEASE}-src.tar.gz
+        dlSubdir: ghcup-${RELEASE}
+        dlHash: $(get_sha "ghcup-${RELEASE}-src.tar.gz")
+      viArch:
+        A_64:
+          Linux_UnknownLinux:
+            unknown_versioning: &ghcup-64
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/x86_64-linux-ghcup-${RELEASE}
+              dlHash: $(get_sha "x86_64-linux-ghcup-${RELEASE}")
+          Darwin:
+            unknown_versioning:
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/x86_64-apple-darwin-ghcup-${RELEASE}
+              dlHash: $(get_sha "x86_64-apple-darwin-ghcup-${RELEASE}")
+          FreeBSD:
+            unknown_versioning:
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/x86_64-portbld-freebsd-ghcup-${RELEASE}
+              dlHash: $(get_sha "x86_64-portbld-freebsd-ghcup-${RELEASE}")
+          Windows:
+            unknown_versioning:
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/x86_64-mingw64-ghcup-${RELEASE}.exe
+              dlHash: $(get_sha "x86_64-mingw64-ghcup-${RELEASE}.exe")
+          Linux_Alpine:
+            unknown_versioning: *ghcup-64
+        A_32:
+          Linux_UnknownLinux:
+            unknown_versioning: &ghcup-32
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/i386-linux-ghcup-${RELEASE}
+              dlHash: $(get_sha "i386-linux-ghcup-${RELEASE}")
+          Linux_Alpine:
+            unknown_versioning: *ghcup-32
+        A_ARM64:
+          Linux_UnknownLinux:
+            unknown_versioning:
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/aarch64-linux-ghcup-${RELEASE}
+              dlHash: $(get_sha "aarch64-linux-ghcup-${RELEASE}")
+          Darwin:
+            unknown_versioning:
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/aarch64-apple-darwin-ghcup-${RELEASE}
+              dlHash: $(get_sha "aarch64-apple-darwin-ghcup-${RELEASE}")
+        A_ARM:
+          Linux_UnknownLinux:
+            unknown_versioning:
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/armv7-linux-ghcup-${RELEASE}
+              dlHash: $(get_sha "armv7-linux-ghcup-${RELEASE}")
+EOF
+