Launch miner - runs miner_sync_simple.rb - deal with no internet connection

[neoneye]

The script cannot deal with missing internet. It fails like this:

PROMPT> loda-rust mine

██╗      ██████╗ ██████╗  █████╗       ██████╗ ██╗   ██╗███████╗████████╗
██║     ██╔═══██╗██╔══██╗██╔══██╗      ██╔══██╗██║   ██║██╔════╝╚══██╔══╝
██║     ██║   ██║██║  ██║███████║█████╗██████╔╝██║   ██║███████╗   ██║   
██║     ██║   ██║██║  ██║██╔══██║╚════╝██╔══██╗██║   ██║╚════██║   ██║   
███████╗╚██████╔╝██████╔╝██║  ██║      ██║  ██║╚██████╔╝███████║   ██║   
╚══════╝ ╚═════╝ ╚═════╝ ╚═╝  ╚═╝      ╚═╝  ╚═╝ ╚═════╝ ╚══════╝   ╚═╝
LODA-RUST version: 2022.12.4, build: RELEASE

metrics mode: NoMetricsServer
number of workers: 4
Press CTRL-C to stop the miner.


analytics_worker: child 19b0ec47-fa24-4e30-8062-301cd125fc32, received broadcast message: PerformSyncAndAnalytics
thread 'tokio-runtime-worker' panicked at 'Problem executing MinerSyncExecute: MinerSyncExecute with failing error code. executable_path: "/home/euclid/git/loda-rust/script/miner_sync_simple.rb" output: "error: no commit_id found in command output\noutput from command: git ls-remote origin HEAD"', loda-rust-cli/src/mine/analytics_worker.rs:67:13
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
PROMPT> curl: (6) Could not resolve host: api.loda-lang.org

Solution

In miner_sync_simple.rb - Check for internet connectivity, before doing git commands.

In the Rust code - stop the executable when the miner_sync_simple.rb returns with an error.