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High-performance document intelligence library with OCR support
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checksum-Elixir.exs
defmodule RustlerPrecompiled.ChecksumGenerator do
@moduledoc """
Generates checksums for precompiled NIFs downloaded from GitHub releases.
This script is used during the release process to generate SHA256 checksums
for all platform-specific binaries. The checksums are used by rustler_precompiled
to verify the integrity of downloaded binaries.
Usage:
mix run checksum-Elixir.exs
"""
def generate do
version = Mix.Project.config()[:version]
base_url = "https://github.com/kreuzberg-dev/kreuzberg/releases/download/v#{version}"
targets = [
"aarch64-apple-darwin",
"x86_64-apple-darwin",
"x86_64-unknown-linux-gnu",
"x86_64-unknown-linux-musl",
"aarch64-unknown-linux-gnu",
"aarch64-unknown-linux-musl",
"x86_64-pc-windows-msvc",
"x86_64-pc-windows-gnu"
]
nif_versions = ["2.16", "2.17"]
IO.puts("Generating checksums for Kreuzberg v#{version}\n")
IO.puts("Base URL: #{base_url}\n")
checksums =
for target <- targets,
nif_version <- nif_versions do
ext = if String.contains?(target, "windows"), do: "dll", else: "so"
filename = "libkreuzberg_rustler-v#{version}-nif-#{nif_version}-#{target}.#{ext}.tar.gz"
url = "#{base_url}/#{filename}"
case download_and_checksum(url, filename) do
{:ok, checksum} ->
IO.puts("✓ #{filename}: #{checksum}")
{filename, checksum}
{:error, reason} ->
IO.puts("✗ #{filename}: #{reason}")
nil
end
end
|> Enum.reject(&is_nil/1)
|> Map.new()
if Enum.empty?(checksums) do
IO.puts("\n⚠ Warning: No checksums generated!")
IO.puts("Make sure binaries are published to GitHub releases first.")
else
write_checksum_file(checksums)
IO.puts("\n✓ Checksums written to checksum-Elixir.exs")
IO.puts("Total files: #{map_size(checksums)}")
end
end
defp download_and_checksum(url, filename) do
cache_dir = Path.join([System.tmp_dir!(), "kreuzberg-checksums"])
File.mkdir_p!(cache_dir)
local_path = Path.join(cache_dir, filename)
# Try to download the file
case System.cmd("curl", ["-fsSL", "-o", local_path, url], stderr_to_stdout: true) do
{_, 0} ->
# Calculate SHA256
case System.cmd("shasum", ["-a", "256", local_path]) do
{output, 0} ->
[checksum | _] = String.split(output)
{:ok, String.trim(checksum)}
{error, _} ->
{:error, "Failed to calculate checksum: #{error}"}
end
{error, _} ->
{:error, "Download failed: #{String.slice(error, 0..100)}"}
end
end
defp write_checksum_file(checksums) do
content = """
%{
#{Enum.map_join(checksums, ",\n", fn {filename, hash} ->
" \"#{filename}\" => \"sha256:#{hash}\""
end)}
}
"""
File.write!("checksum-Elixir.exs", content)
end
end
# Run the generator
RustlerPrecompiled.ChecksumGenerator.generate()