zebra/zebra-consensus/examples/download-params.rs

12 lines
486 B
Rust
Raw Normal View History

Download Zcash Sapling parameters and load them from cached files (#3057) * Replace Zcash parameters crates with pre-downloaded local parameter files * Download Zcash parameters using the `zcashd` script in CI and Docker * Add a zcash_proofs dependency to zebra-consensus * Download Sapling parameters using zcash_proofs, rather than fetch-params.sh * Add a new `zebrad download` subcommand This command isn't required for nomrmal usage. But it's useful when testing, or launching multiple Zebra instances. * Use `zebrad download` in CI to pre-download parameters * Log a helpful hint if downloading fails * Allow some duplicate dependencies currently hidden by orchard * Spawn a separate task to download Groth16 parameters * Run the parameter download with code coverage This avoids re-compining Zebra with and without coverage. * Update Cargo.lock after rebase * Try to pass `download` as an argument to `zebrad` in coverage CI * Fix copy and paste comment typos * Add path and download examples, like zcash_proofs * Download params in CI just like zcash_proofs does * Delete a redundant build step * Implement graceful shutdown for zebrad start * Send coverage summary to /dev/null when getting the params path * Use the correct parameters path and download commands in CI * Explain pre-downloads * Avoid calling params_folder twice * Rename parameter types and methods for consistency ```sh fastmod SaplingParams SaplingParameters zebra* fastmod Groth16Params Groth16Parameters zebra* fastmod PARAMS GROTH16_PARAMETERS zebra* fastmod params_folder directory zebra* ``` And a manual variable name tweak. * rustfmt * Remove a redundant coverage step Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
2021-11-19 15:02:56 -08:00
//! Download the Sapling and Sprout Groth16 parameters if needed,
//! check they were downloaded correctly, and load them into Zebra.
// Has the same functionality as:
// https://github.com/zcash/librustzcash/blob/c48bb4def2e122289843ddb3cb2984c325c03ca0/zcash_proofs/examples/download-params.rs
fn main() {
// The lazy static initializer does the download, if needed,
// and the file hash checks.
lazy_static::initialize(&zebra_consensus::groth16::GROTH16_PARAMETERS);
}