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DeeJanuz--frametop/framedrop/build.sh
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DeeJanuzandClaude Opus 5.5 06f2dd63c1 FrameDrop: proof of concept for installing Frametop from FrameDrop (#25)
FrameDrop sideloads a Linux zip as a Steam Devkit Game. Frametop can't be
copied over as an app, so the zip holds a small installer: playing it runs
get.sh --yes in a transient user service (Steam reaps the title's process
tree on quit) and shows progress in a GTK window.

- probe/probe.sh records what a Devkit Game can reach. On SteamOS 0.3.0 it
  runs on the host with git, podman, systemd and GTK, even with the SLR4
  compat tool set; inside SLR4, flatpak-spawn --host reaches the host.
- devkit.sh registers a folder the way FrameDrop does (Valve's devkit-utils),
  for testing without a PC.
- build.sh makes a reproducible Frametop.zip and the FrameDrop manifest.

Nothing is published. Open: whether FrameDrop keeps the exec bit, and its
start command and runtime choice.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-04 21:19:30 -06:00

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#!/usr/bin/env bash
# Build the FrameDrop download: framedrop/build/Frametop.zip (the installer in a "Frametop"
# folder) and framedrop/build/frametop.framedrop.json, the manifest an "Install with
# FrameDrop" button points at. The zip is reproducible: same files, same sha256.
#
# Usage: framedrop/build.sh [ZIP_URL]
# ZIP_URL where the zip will be downloaded from (default: the framedrop-installer release)
set -euo pipefail
here=$(cd "$(dirname "$0")" && pwd)
url=${1:-https://github.com/DeeJanuz/frametop/releases/download/framedrop-installer/Frametop.zip}
out=$here/build
mkdir -p "$out"
python3 - "$here/installer" "$out/Frametop.zip" <<'EOF'
import os, sys, zipfile
src, dest = sys.argv[1:]
with zipfile.ZipFile(dest, "w", zipfile.ZIP_DEFLATED) as z:
for name in ("frametop-install.sh", "progress.py"):
info = zipfile.ZipInfo(f"Frametop/{name}", date_time=(2026, 1, 1, 0, 0, 0))
info.create_system = 3 # unix, so the permissions below count
info.external_attr = (0o100755 if os.access(os.path.join(src, name), os.X_OK) else 0o100644) << 16
info.compress_type = zipfile.ZIP_DEFLATED
with open(os.path.join(src, name), "rb") as f:
z.writestr(info, f.read())
EOF
sha=$(sha256sum "$out/Frametop.zip" | cut -d' ' -f1)
python3 - "$url" "$sha" >"$out/frametop.framedrop.json" <<'EOF'
import json, sys
url, sha = sys.argv[1:]
print(json.dumps({
"schema": "framedrop.install/v1",
"name": "Frametop",
"files": [{"url": url, "sha256": sha}],
}, indent=2))
EOF
echo "built $out/Frametop.zip ($sha)"
echo " $out/frametop.framedrop.json"