zebrad 4.0.0

The Zcash Foundation's independent, consensus-compatible implementation of a Zcash node
Documentation 
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//! Build script for zebrad.
//!
//! Turns Zebra version information into build-time environmental variables,
//! so that it can be compiled into `zebrad`, and used in diagnostics.
//!
//! When compiling the `lightwalletd` gRPC tests, also builds a gRPC client
//! Rust API for `lightwalletd`.

use vergen_git2::{CargoBuilder, Emitter, Git2Builder, RustcBuilder};

/// Process entry point for `zebrad`'s build script
#[allow(clippy::print_stderr)]
fn main() {
    let mut emitter = Emitter::default();

    // Configures an [`Emitter`] for everything except for `git` env vars.
    // This builder fails the build on error.
    emitter
        .fail_on_error()
        .add_instructions(
            &CargoBuilder::all_cargo().expect("all_cargo() should build successfully"),
        )
        .expect("adding all_cargo() instructions should succeed")
        .add_instructions(
            &RustcBuilder::all_rustc().expect("all_rustc() should build successfully"),
        )
        .expect("adding all_rustc() instructions should succeed");

    // Get git information. This is used by e.g. ZebradApp::register_components()
    // to log the commit hash
    let all_git = Git2Builder::default()
        .branch(true)
        .commit_author_email(true)
        .commit_author_name(true)
        .commit_count(true)
        .commit_date(true)
        .commit_message(true)
        .commit_timestamp(true)
        .describe(false, false, None)
        .sha(true)
        .dirty(false)
        .describe(true, true, Some("v*.*.*"))
        .build()
        .expect("all_git + describe + sha should build successfully");

    if let Err(e) = emitter.add_instructions(&all_git) {
        // The most common failure here is due to a missing `.git` directory,
        // e.g., when building from `cargo install zebrad`. We simply
        // proceed with the build.
        // Note that this won't be printed unless in cargo very verbose mode (-vv).
        // We could emit a build warning, but that might scare users.
        println!("git error in vergen build script: skipping git env vars: {e:?}",);
    }

    emitter.emit().expect("base emit should succeed");

    #[cfg(feature = "lightwalletd-grpc-tests")]
    tonic_prost_build::configure()
        .build_client(true)
        .build_server(false)
        .compile_protos(
            &["tests/common/lightwalletd/proto/service.proto"],
            &["tests/common/lightwalletd/proto"],
        )
        .expect("Failed to generate lightwalletd gRPC files");
}