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use std::path::{Path, PathBuf};
use tracing::warn;
use super::snapshot::{parse_snapshot, snapshot_file_version, SessionSnapshot, SNAPSHOT_VERSION};
fn session_path() -> PathBuf {
crate::config::config_dir().join("session.json")
}
pub(super) fn save_to_path(path: &Path, snapshot: &SessionSnapshot) -> std::io::Result<()> {
if let Some(parent) = path.parent() {
std::fs::create_dir_all(parent)?;
}
let json = serde_json::to_string_pretty(snapshot)?;
let tmp_path = path.with_extension("json.tmp");
std::fs::write(&tmp_path, &json)?;
if let Err(err) = std::fs::rename(&tmp_path, path) {
let _ = std::fs::remove_file(&tmp_path);
return Err(err);
}
Ok(())
}
pub(super) fn clear_path(path: &Path) -> std::io::Result<()> {
match std::fs::remove_file(path) {
Ok(()) => Ok(()),
Err(err) if err.kind() == std::io::ErrorKind::NotFound => Ok(()),
Err(err) => Err(err),
}
}
pub fn save(snapshot: &SessionSnapshot) {
let path = session_path();
if let Err(err) = save_to_path(&path, snapshot) {
crate::logging::session_save_failed(&path, &err.to_string());
return;
}
crate::logging::session_saved(&path, snapshot.workspaces.len());
}
pub fn clear() {
let path = session_path();
if let Err(err) = clear_path(&path) {
crate::logging::session_clear_failed(&path, &err.to_string());
return;
}
crate::logging::session_cleared(&path);
}
pub fn load() -> Option<SessionSnapshot> {
let path = session_path();
if !path.exists() {
return None;
}
let content = match std::fs::read_to_string(&path) {
Ok(content) => content,
Err(err) => {
warn!(err = %err, "failed to read session file");
return None;
}
};
match parse_snapshot(&content) {
Ok(snapshot) => Some(snapshot),
Err(err) => {
if let Some(version) = snapshot_file_version(&content) {
if version > SNAPSHOT_VERSION {
warn!(
file_version = version,
supported = SNAPSHOT_VERSION,
"session file is from a newer herdr version, ignoring"
);
return None;
}
}
warn!(err = %err, "failed to parse session file, ignoring");
None
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::app::state::AgentPanelScope;
fn temp_session_path(name: &str) -> PathBuf {
let unique = format!(
"herdr-session-tests-{}-{}-{}",
name,
std::process::id(),
std::time::SystemTime::now()
.duration_since(std::time::UNIX_EPOCH)
.unwrap()
.as_nanos()
);
std::env::temp_dir().join(unique).join("session.json")
}
fn empty_snapshot() -> SessionSnapshot {
SessionSnapshot {
version: SNAPSHOT_VERSION,
workspaces: vec![],
active: None,
selected: 0,
agent_panel_scope: AgentPanelScope::CurrentWorkspace,
sidebar_width: Some(26),
sidebar_section_split: Some(0.5),
}
}
#[test]
fn clear_path_removes_existing_session_file() {
let path = temp_session_path("clear-existing");
save_to_path(&path, &empty_snapshot()).unwrap();
clear_path(&path).unwrap();
assert!(!path.exists());
}
#[test]
fn clear_path_ignores_missing_session_file() {
let path = temp_session_path("clear-missing");
clear_path(&path).unwrap();
assert!(!path.exists());
}
}
|
