56 lines
2 KiB
Rust
56 lines
2 KiB
Rust
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// cli/journal.rs — journal subcommand handlers
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use crate::store;
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use crate::store::StoreView;
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pub fn cmd_tail(n: usize, full: bool) -> Result<(), String> {
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let path = crate::store::nodes_path();
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if !path.exists() {
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return Err("No node log found".into());
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}
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use std::io::BufReader;
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let file = std::fs::File::open(&path)
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.map_err(|e| format!("open {}: {}", path.display(), e))?;
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let mut reader = BufReader::new(file);
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// Read all entries, keep last N
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let mut entries: Vec<crate::store::Node> = Vec::new();
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while let Ok(msg) = capnp::serialize::read_message(&mut reader, capnp::message::ReaderOptions::new()) {
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let log = msg.get_root::<crate::memory_capnp::node_log::Reader>()
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.map_err(|e| format!("read log: {}", e))?;
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for node_reader in log.get_nodes()
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.map_err(|e| format!("get nodes: {}", e))? {
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let node = crate::store::Node::from_capnp_migrate(node_reader)?;
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entries.push(node);
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}
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}
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let start = entries.len().saturating_sub(n);
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for node in &entries[start..] {
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let ts = if node.timestamp > 0 && node.timestamp < 4_000_000_000 {
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crate::store::format_datetime(node.timestamp)
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} else {
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format!("(raw:{})", node.timestamp)
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};
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let del = if node.deleted { " [DELETED]" } else { "" };
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if full {
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eprintln!("--- {} (v{}) {} via {} w={:.3}{} ---",
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node.key, node.version, ts, node.provenance, node.weight, del);
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eprintln!("{}\n", node.content);
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} else {
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let preview = crate::util::first_n_chars(&node.content, 100).replace('\n', "\\n");
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eprintln!(" {} v{} w={:.2}{}",
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ts, node.version, node.weight, del);
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eprintln!(" {} via {}", node.key, node.provenance);
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if !preview.is_empty() {
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eprintln!(" {}", preview);
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}
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eprintln!();
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}
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}
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Ok(())
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}
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