asimov-cli 25.2.0

// This is free and unencumbered software released into the public domain.

use crate::timestamps::format_ts_diff;
use asimov_env::paths::asimov_root;
use asimov_module::normalization::normalize_url;
use asimov_registry::Registry;
use asimov_snapshot::{Options, Snapshotter};
use clientele::{StandardOptions, SysexitsError};
use color_print::cprintln;
use jiff::{Zoned, tz::TimeZone};

pub async fn log(url: &str, _flags: &StandardOptions) -> Result<(), SysexitsError> {
    let storage = asimov_snapshot::storage::Fs::for_dir(asimov_root().join("snapshots"))?;
    let ss = Snapshotter::new(Registry::default(), storage, Options::default());

    let url = normalize_url(url).unwrap_or_else(|e| {
        tracing::error!(
            url,
            "proceeding with given unmodified URL, normalization failed: {e}"
        );
        url.into()
    });

    let mut snapshots = ss
        .log(&url)
        .await
        .inspect_err(|e| tracing::error!("failed to fetch snapshot log for `{url}`: {e}"))?;
    snapshots.sort();

    let now = Zoned::now();
    for ts in snapshots {
        let snapshot = ss.read(&url, ts).await.inspect_err(|e| {
            tracing::error!("failed to read snapshot `{ts}` for url `{url}`: {e}")
        })?;

        let hash = <sha2::Sha256 as sha2::Digest>::digest(&snapshot.data);
        let hash = &hex::encode(hash)[..8];

        let diff = format_ts_diff(&now, &ts.to_zoned(TimeZone::UTC))
            .expect("Unexpectedly failed to format timestamp difference");

        cprintln!("<s>{hash}</> ({diff:#})");
    }
    Ok(())
}