Trailer tool (Movie Maker + ffmpeg) and a static download page built per release

tools/site/make_site.sh

@@ -0,0 +1,45 @@
+#!/bin/sh
+# Builds the download page into build/site/ for the release in
+# build/version.json (made by tools/export.sh):
+#
+#   tools/site/make_site.sh
+#
+#   build/site/index.html    the page, with this release's download links
+#   build/site/poster.jpg    the trailer's title frame
+#   build/site/trailer.mp4   the trailer (tools/trailer/make_trailer.sh)
+#
+# Copy the folder to any static web host. Gitea itself won't serve HTML, so
+# the page lives elsewhere and links to the files on the Gitea release.
+# Rebuild it after each release (the links name the version).
+
+cd "$(dirname "$0")/../.." || exit 1
+REPO=${REPO:-https://git.psbailey.uk/Admin/Emberwild}
+[ -f build/version.json ] || { echo "no build/version.json: run tools/export.sh first"; exit 1; }
+[ -f build/Emberwild-trailer.mp4 ] || { echo "no trailer: run tools/trailer/make_trailer.sh first"; exit 1; }
+
+rm -rf build/site && mkdir -p build/site
+cp build/Emberwild-trailer.mp4 build/site/trailer.mp4
+cp build/trailer/poster.jpg build/site/poster.jpg
+python3 - "$REPO" <<'EOF'
+import html, json, sys
+repo = sys.argv[1].rstrip("/")
+v = json.load(open("build/version.json"))
+tag = "v" + v["version"]
+def dl(plat):
+    d = v["downloads"].get(plat)
+    if not d:
+        return repo + "/releases", "see all releases"
+    return "%s/releases/download/%s/%s" % (repo, tag, d["file"]), "%.0f MB" % (d["size"] / 1e6)
+mac_url, mac_size = dl("macos")
+win_url, win_size = dl("windows")
+page = open("tools/site/index.html").read()
+for k, val in {
+    "VERSION": v["version"], "DATE": v.get("date", ""), "NOTES": v.get("notes", ""),
+    "MAC_URL": mac_url, "MAC_SIZE": mac_size, "WIN_URL": win_url, "WIN_SIZE": win_size,
+    "RELEASES_URL": repo + "/releases",
+}.items():
+    page = page.replace("{{%s}}" % k, html.escape(str(val), quote=True))
+assert "{{" not in page, "a placeholder was left unfilled"
+open("build/site/index.html", "w").write(page)
+print("built build/site/ for %s:\n  %s\n  %s" % (v["version"], mac_url, win_url))
+EOF