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session: add TranscriptInfo struct, consolidate transcript lookups

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TranscriptInfo provides cached transcript metadata (path, size)
with a single read. Replaces scattered fs::metadata calls in
surface_observe_cycle, reflection_cycle, resolve_conversation,
and resolve_memory_ratio.

Session::transcript() resolves the path from transcript_path or
by searching projects dir, returning a TranscriptInfo.

Co-Authored-By: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
ProofOfConcept 2026-03-26 23:24:25 -04:00
parent 8ccc30d97e
commit bb2e3b9fbb
3 changed files with 79 additions and 45 deletions
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48
src/subconscious/defs.rs
View file

@ -572,26 +572,14 @@ fn resolve(
/// Reads POC_SESSION_ID to find the transcript, extracts the last
/// segment (post-compaction), returns the tail (~100K chars).
fn resolve_conversation(budget: Option<usize>) -> String {
let session_id = std::env::var("POC_SESSION_ID").unwrap_or_default();
if session_id.is_empty() { return String::new(); }
let session = crate::session::Session::from_env();
let transcript = session.as_ref()
.map(|s| s.transcript())
.unwrap_or_else(crate::session::TranscriptInfo::empty);
let projects = crate::config::get().projects_dir.clone();
// Find the transcript file matching this session
let mut transcript = None;
if let Ok(dirs) = std::fs::read_dir(&projects) {
for dir in dirs.filter_map(|e| e.ok()) {
let path = dir.path().join(format!("{}.jsonl", session_id));
if path.exists() {
transcript = Some(path);
break;
}
}
}
if !transcript.exists() { return String::new(); }
let Some(path) = transcript else { return String::new() };
let path_str = path.to_string_lossy();
let Some(iter) = crate::transcript::TailMessages::open(&path_str) else {
let Some(iter) = crate::transcript::TailMessages::open(&transcript.path) else {
return String::new();
};
@ -680,22 +668,14 @@ fn resolve_memory_ratio() -> String {
let state_dir = std::path::PathBuf::from("/tmp/claude-memory-search");
// Get post-compaction transcript size
let projects = crate::config::get().projects_dir.clone();
let transcript_size: u64 = std::fs::read_dir(&projects).ok()
.and_then(|dirs| {
for dir in dirs.filter_map(|e| e.ok()) {
let path = dir.path().join(format!("{}.jsonl", session_id));
if path.exists() {
let file_len = path.metadata().map(|m| m.len()).unwrap_or(0);
let compaction_offset: u64 = std::fs::read_to_string(
state_dir.join(format!("compaction-{}", session_id))
).ok().and_then(|s| s.trim().parse().ok()).unwrap_or(0);
return Some(file_len.saturating_sub(compaction_offset));
}
}
None
})
.unwrap_or(0);
let session = crate::session::Session::from_env();
let transcript = session.as_ref()
.map(|s| s.transcript())
.unwrap_or_else(crate::session::TranscriptInfo::empty);
let compaction_offset: u64 = std::fs::read_to_string(
state_dir.join(format!("compaction-{}", session_id))
).ok().and_then(|s| s.trim().parse().ok()).unwrap_or(0);
let transcript_size = transcript.size.saturating_sub(compaction_offset);
if transcript_size == 0 {
return "0% of context is recalled memories (new session)".to_string();