Function getRustVersions

src/config.ts:388–411

(cmdFormat: string)

}

async function getRustVersions(cmdFormat: string): Promise<Set<RustVersion>> {
  const versions = new Set<RustVersion>();

  versions.add(parseRustVersion(await getCmdOutput(cmdFormat, "rustc -vV")));

  const stdout = await (async () => {
    try {
      return await getCmdOutput(cmdFormat, "rustup toolchain list --quiet");
    } catch (e) {
      core.warning(`Error running rustup toolchain list, falling back to default toolchain only: ${e}`);
      return undefined;
    }
  })();
  if (stdout !== undefined) {
    for (const toolchain of stdout.split(/[\n\r]+/)) {
      const trimmed = toolchain.trim();
      if (!trimmed) {
        continue;
      }
      versions.add(parseRustVersion(await getCmdOutput(cmdFormat, `rustup run ${toolchain} rustc -vV`)));
    }
  }
  return versions;
}

function parseRustVersion(stdout: string): RustVersion {
  const splits = stdout