tenzen-studio-bin: new package

tenzen-studio-bin/pkg.sh

@@ -0,0 +1,33 @@
+# tenzen-studio-bin - Tenzen Studio (https://tenzen.studio), a proprietary
+# Electron app for recording and editing product demos.
+#
+# Upstream publishes no source, so there is only this -bin package. For Linux
+# it ships nothing but a Flatpak bundle, versioned on its own download host:
+# the PKGBUILD unpacks that with ostree (a Flatpak bundle is an OSTree static
+# delta) and takes the icon out of app.asar, so the test build needs both.
+#
+# The release API names the current version and lists every artifact with its
+# sha256, so nothing has to be downloaded to refresh the checksum - makepkg's
+# test build verifies it against the real download anyway.
+
+API="https://tenzen.studio/api/v1/desktop/releases/latest?channel=stable"
+
+BUILD_DEPS=(ostree asar)
+
+latest_version() {
+  curl -sf "$API" | jq -r '.release.version'
+}
+
+# refresh_checksums <version> <pkgbuild-path>
+refresh_checksums() {
+  local ver="$1" pkgbuild="$2" sha
+
+  sha="$(curl -sf "$API" | jq -r --arg f "Tenzen-$ver-linux-x64.flatpak" \
+    '.release.artifacts[] | select(.file_name == $f) | .sha256')"
+  if [[ ! "$sha" =~ ^[0-9a-f]{64}$ ]]; then
+    echo "the release API lists no Tenzen-$ver-linux-x64.flatpak" >&2
+    return 1
+  fi
+
+  sed -i "s|^sha256sums=.*|sha256sums=('$sha')|" "$pkgbuild"
+}