2021-05-09 11:34:15 -06:00
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use std::{
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fs::File,
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io::{BufRead, BufReader},
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path::{Path, PathBuf},
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};
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use atuin_common::utils::uuid_v4;
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use chrono::{TimeZone, Utc};
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use directories::UserDirs;
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use eyre::{eyre, Result};
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2021-05-08 10:29:46 -06:00
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2021-05-09 11:34:15 -06:00
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use super::{count_lines, Importer};
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use crate::history::History;
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2021-05-08 10:29:46 -06:00
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#[derive(Deserialize, Debug)]
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2021-05-09 11:34:15 -06:00
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#[serde(rename_all = "camelCase")]
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2021-05-08 10:29:46 -06:00
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pub struct ReshEntry {
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pub cmd_line: String,
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pub exit_code: i64,
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pub shell: String,
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pub uname: String,
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pub session_id: String,
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pub home: String,
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pub lang: String,
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pub lc_all: String,
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pub login: String,
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pub pwd: String,
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pub pwd_after: String,
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pub shell_env: String,
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pub term: String,
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pub real_pwd: String,
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pub real_pwd_after: String,
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pub pid: i64,
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pub session_pid: i64,
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pub host: String,
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pub hosttype: String,
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pub ostype: String,
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pub machtype: String,
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pub shlvl: i64,
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pub timezone_before: String,
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pub timezone_after: String,
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pub realtime_before: f64,
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pub realtime_after: f64,
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pub realtime_before_local: f64,
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pub realtime_after_local: f64,
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pub realtime_duration: f64,
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pub realtime_since_session_start: f64,
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pub realtime_since_boot: f64,
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pub git_dir: String,
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pub git_real_dir: String,
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pub git_origin_remote: String,
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pub git_dir_after: String,
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pub git_real_dir_after: String,
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pub git_origin_remote_after: String,
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pub machine_id: String,
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pub os_release_id: String,
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pub os_release_version_id: String,
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pub os_release_id_like: String,
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pub os_release_name: String,
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pub os_release_pretty_name: String,
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pub resh_uuid: String,
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pub resh_version: String,
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pub resh_revision: String,
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pub parts_merged: bool,
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pub recalled: bool,
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pub recall_last_cmd_line: String,
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pub cols: String,
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pub lines: String,
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}
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2021-05-09 11:34:15 -06:00
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#[derive(Debug)]
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pub struct Resh {
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file: BufReader<File>,
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strbuf: String,
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loc: usize,
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}
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impl Importer for Resh {
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const NAME: &'static str = "resh";
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fn histpath() -> Result<PathBuf> {
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let user_dirs = UserDirs::new().unwrap();
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let home_dir = user_dirs.home_dir();
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Ok(home_dir.join(".resh_history.json"))
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}
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fn parse(path: impl AsRef<Path>) -> Result<Self> {
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let file = File::open(path)?;
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let mut buf = BufReader::new(file);
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let loc = count_lines(&mut buf)?;
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Ok(Self {
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file: buf,
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strbuf: String::new(),
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loc,
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})
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}
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}
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impl Iterator for Resh {
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type Item = Result<History>;
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fn next(&mut self) -> Option<Self::Item> {
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self.strbuf.clear();
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match self.file.read_line(&mut self.strbuf) {
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Ok(0) => return None,
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Ok(_) => (),
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Err(e) => return Some(Err(eyre!("failed to read line: {}", e))), // we can skip past things like invalid utf8
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}
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2021-05-09 13:09:09 -06:00
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// .resh_history.json lies about being a json. It is actually a file containing valid json
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// on every line. This means that the last line will throw an error, as it is just an EOF.
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// Without the special case here, that will crash the importer.
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2021-05-09 11:34:15 -06:00
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let entry = match serde_json::from_str::<ReshEntry>(&self.strbuf) {
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Ok(e) => e,
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2021-05-09 13:09:09 -06:00
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Err(e) if e.is_eof() => return None,
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2021-05-09 11:34:15 -06:00
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Err(e) => {
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return Some(Err(eyre!(
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"Invalid entry found in resh_history file: {}",
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e
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)))
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}
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};
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#[allow(clippy::cast_possible_truncation)]
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#[allow(clippy::cast_sign_loss)]
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let timestamp = {
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let secs = entry.realtime_before.floor() as i64;
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let nanosecs = (entry.realtime_before.fract() * 1_000_000_000_f64).round() as u32;
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Utc.timestamp(secs, nanosecs)
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};
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#[allow(clippy::cast_possible_truncation)]
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#[allow(clippy::cast_sign_loss)]
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let duration = {
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let secs = entry.realtime_after.floor() as i64;
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let nanosecs = (entry.realtime_after.fract() * 1_000_000_000_f64).round() as u32;
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let difference = Utc.timestamp(secs, nanosecs) - timestamp;
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difference.num_nanoseconds().unwrap_or(0)
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};
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Some(Ok(History {
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id: uuid_v4(),
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timestamp,
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duration,
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exit: entry.exit_code,
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command: entry.cmd_line,
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cwd: entry.pwd,
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session: uuid_v4(),
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hostname: entry.host,
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}))
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}
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fn size_hint(&self) -> (usize, Option<usize>) {
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(self.loc, Some(self.loc))
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}
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}
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