ic_testkit/artifacts/
wasm.rs

1use std::{
2    fs,
3    path::{Path, PathBuf},
4    process::Command,
5};
6
7/// Resolve the wasm artifact path for one crate under a target directory.
8#[must_use]
9pub fn wasm_path(target_dir: &Path, crate_name: &str, profile_target_dir: &str) -> PathBuf {
10    target_dir
11        .join("wasm32-unknown-unknown")
12        .join(profile_target_dir)
13        .join(format!("{crate_name}.wasm"))
14}
15
16/// Check whether all requested wasm artifacts already exist.
17#[must_use]
18pub fn wasm_artifacts_ready(
19    target_dir: &Path,
20    canisters: &[&str],
21    profile_target_dir: &str,
22) -> bool {
23    canisters
24        .iter()
25        .all(|name| wasm_path(target_dir, name, profile_target_dir).is_file())
26}
27
28/// Read a compiled wasm artifact for one crate.
29#[must_use]
30pub fn read_wasm(target_dir: &Path, crate_name: &str, profile_target_dir: &str) -> Vec<u8> {
31    let path = wasm_path(target_dir, crate_name, profile_target_dir);
32    fs::read(&path).unwrap_or_else(|err| panic!("failed to read {crate_name} wasm: {err}"))
33}
34
35/// Build one or more wasm canisters into the provided target directory.
36pub fn build_wasm_canisters(
37    workspace_root: &Path,
38    target_dir: &Path,
39    packages: &[&str],
40    cargo_profile_args: &[&str],
41    extra_env: &[(&str, &str)],
42) {
43    let mut cmd = cargo_command();
44    cmd.current_dir(workspace_root);
45    cmd.env("CARGO_TARGET_DIR", target_dir);
46    cmd.args(["build", "--target", "wasm32-unknown-unknown"]);
47    cmd.args(cargo_profile_args);
48
49    for (key, value) in extra_env {
50        cmd.env(key, value);
51    }
52
53    for name in packages {
54        cmd.args(["-p", name]);
55    }
56
57    let output = cmd.output().expect("failed to run cargo build");
58    assert!(
59        output.status.success(),
60        "cargo build failed: {}",
61        String::from_utf8_lossy(&output.stderr)
62    );
63}
64
65fn cargo_command() -> Command {
66    let cargo = std::env::var_os("CARGO").unwrap_or_else(|| "cargo".into());
67    let mut command = Command::new(cargo);
68
69    if let Some(toolchain) = std::env::var_os("RUSTUP_TOOLCHAIN") {
70        command.env("RUSTUP_TOOLCHAIN", toolchain);
71    }
72
73    command
74}
ic_testkit/artifacts/wasm.rs

ic_testkit/artifacts/
wasm.rs
