Michel de Graaf
62c99e4ab8
The e2e job caught this: adding status and file columns to the text record broke `room_users_lists_who_is_in_the_room`, which asserts the line equals the username. That test encodes a real contract -- the text output is a roster to pipe into other commands -- and reformatting it was scope this change did not need. The statistics stay on the record for `--json`. Reproduced the failure locally against soulfind, then confirmed the same test passing with the fix.
706 lines
19 KiB
Rust
706 lines
19 KiB
Rust
//! Output discipline for the one-shot commands.
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//!
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//! stdout carries records and nothing else, stderr carries progress, and the
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//! process exit code carries the verdict. Records render either as
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//! newline-delimited JSON (`--json`) or as tab-separated text, so both `jq`
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//! and `cut` are first-class consumers.
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use serde::Serialize;
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use std::io::{IsTerminal, Write};
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/// Documented exit statuses. Anything a wrapper script needs to branch on has
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/// its own code; clap already uses 2 for argument errors, so config problems
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/// share it.
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#[derive(Copy, Clone, Debug, PartialEq, Eq)]
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pub enum Exit {
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Ok = 0,
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/// Something unexpected went wrong (also the panic/TUI bucket).
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Failure = 1,
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/// Bad arguments, missing credentials, unusable configuration.
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Usage = 2,
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/// Could not reach the server, or the server rejected the login.
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Connection = 3,
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/// The operation succeeded but produced nothing.
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NoResults = 4,
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/// Gave up waiting for a response or a transfer.
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Timeout = 5,
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/// A transfer started but did not complete.
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Transfer = 6,
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/// The server session ended mid-command, so nothing this run saw (or did
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/// not see) means anything. Retry rather than believe it.
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SessionLost = 7,
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}
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impl Exit {
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#[must_use]
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pub const fn code(self) -> u8 {
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self as u8
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}
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}
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impl From<Exit> for std::process::ExitCode {
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fn from(exit: Exit) -> Self {
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Self::from(exit.code())
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}
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}
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/// A failure carrying the exit code it should produce.
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub struct CliError {
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pub exit: Exit,
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pub message: String,
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}
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impl CliError {
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pub fn new(exit: Exit, message: impl Into<String>) -> Self {
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Self {
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exit,
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message: message.into(),
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}
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}
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pub fn usage(message: impl Into<String>) -> Self {
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Self::new(Exit::Usage, message)
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}
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pub fn connection(message: impl Into<String>) -> Self {
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Self::new(Exit::Connection, message)
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}
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pub fn timeout(message: impl Into<String>) -> Self {
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Self::new(Exit::Timeout, message)
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}
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pub fn transfer(message: impl Into<String>) -> Self {
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Self::new(Exit::Transfer, message)
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}
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pub fn no_results(message: impl Into<String>) -> Self {
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Self::new(Exit::NoResults, message)
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}
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pub fn session_lost(message: impl Into<String>) -> Self {
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Self::new(Exit::SessionLost, message)
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}
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}
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impl std::fmt::Display for CliError {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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f.write_str(&self.message)
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}
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}
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impl std::error::Error for CliError {}
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pub type CliResult<T = ()> = Result<T, CliError>;
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/// One line of machine-readable output.
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pub trait Record: Serialize {
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/// Tab-separated rendering. Fields must already be free of tabs and
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/// newlines — use [`sanitize`].
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fn text(&self) -> String;
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}
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/// Strip the field and record separators out of peer-supplied text so one
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/// record always occupies exactly one line with stable columns.
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#[must_use]
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pub fn sanitize(value: &str) -> String {
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value.replace(['\t', '\r', '\n'], " ")
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}
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/// Where records go and whether progress is shown.
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#[derive(Clone)]
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pub struct Out {
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json: bool,
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quiet: bool,
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color: bool,
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}
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impl Out {
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#[must_use]
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pub fn new(json: bool, quiet: bool) -> Self {
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Self {
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json,
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quiet,
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color: std::env::var_os("NO_COLOR").is_none()
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&& std::io::stderr().is_terminal(),
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}
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}
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/// Write one record to stdout.
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pub fn emit<R: Record>(&self, record: &R) {
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let line = if self.json {
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serde_json::to_string(record)
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.expect("a record is plain data and always serializes")
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} else {
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record.text()
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};
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Self::write_line(&line);
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}
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/// Progress and narration. Suppressed by `--quiet`, never on stdout.
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pub fn status(&self, message: &str) {
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if !self.quiet {
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let _ = writeln!(std::io::stderr(), "{message}");
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}
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}
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/// A problem worth reporting that is not fatal. Shown even when quiet,
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/// because silently doing less than asked is worse than a stray line.
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pub fn warn(&self, message: &str) {
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let _ = if self.color {
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writeln!(std::io::stderr(), "\x1b[33mwarning:\x1b[0m {message}")
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} else {
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writeln!(std::io::stderr(), "warning: {message}")
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};
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}
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pub fn error(&self, message: &str) {
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let _ = if self.color {
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writeln!(std::io::stderr(), "\x1b[31merror:\x1b[0m {message}")
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} else {
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writeln!(std::io::stderr(), "error: {message}")
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};
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}
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// a closed downstream (`| head -1`) is a normal end for a
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// pipeline, so exit quietly instead of letting println! panic on EPIPE.
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fn write_line(line: &str) {
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if writeln!(std::io::stdout(), "{line}").is_err() {
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std::process::exit(Exit::Ok.code().into());
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}
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}
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}
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/// One file found by `search`.
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#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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pub struct SearchRecord {
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pub user: String,
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pub path: String,
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pub size: u64,
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pub bitrate: Option<u32>,
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pub duration: Option<u32>,
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pub free_slot: bool,
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/// The peer's free upload slots as it reported them, for a picker that
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/// wants to rank rather than just filter.
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pub slots: u8,
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pub speed: u32,
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}
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impl Record for SearchRecord {
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fn text(&self) -> String {
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format!(
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"{}\t{}\t{}\t{}",
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sanitize(&self.user),
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self.size,
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self.bitrate
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.map_or_else(|| "-".to_string(), |b| b.to_string()),
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sanitize(&self.path)
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)
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}
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}
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/// One file in a peer's share listing.
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#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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pub struct BrowseRecord {
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pub user: String,
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pub directory: String,
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pub path: String,
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pub size: u64,
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}
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impl Record for BrowseRecord {
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fn text(&self) -> String {
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format!(
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"{}\t{}\t{}",
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sanitize(&self.user),
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self.size,
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sanitize(&self.path)
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)
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}
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}
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/// The outcome of one transfer.
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#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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pub struct DownloadRecord {
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pub user: String,
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pub path: String,
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pub size: u64,
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pub file: String,
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}
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impl Record for DownloadRecord {
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fn text(&self) -> String {
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sanitize(&self.file)
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}
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}
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/// One public chat room.
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#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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pub struct RoomRecord {
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pub room: String,
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pub users: u32,
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}
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impl Record for RoomRecord {
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fn text(&self) -> String {
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format!("{}\t{}", self.users, sanitize(&self.room))
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}
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}
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/// Something that happened in a room.
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#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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pub struct RoomEventRecord {
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#[serde(rename = "type")]
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pub kind: &'static str,
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pub room: String,
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pub user: String,
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pub message: String,
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}
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impl Record for RoomEventRecord {
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fn text(&self) -> String {
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format!(
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"{}\t{}\t{}\t{}",
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self.kind,
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sanitize(&self.room),
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sanitize(&self.user),
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sanitize(&self.message)
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)
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}
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}
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/// One incoming private message.
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#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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pub struct PrivateMessageRecord {
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pub timestamp: u32,
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pub user: String,
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pub message: String,
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}
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impl Record for PrivateMessageRecord {
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fn text(&self) -> String {
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format!(
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"{}\t{}\t{}",
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self.timestamp,
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sanitize(&self.user),
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sanitize(&self.message)
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)
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}
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}
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/// One upload being served to a peer, reported by `serve` as it changes.
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#[derive(Debug, Clone, PartialEq, Serialize)]
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pub struct UploadRecord {
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pub user: String,
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pub path: String,
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pub size: u64,
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pub bytes_sent: u64,
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pub speed: f64,
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/// `queued`, `uploading`, `completed`, `cancelled`, or `failed`.
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pub status: String,
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/// Why it failed, when it did.
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pub reason: Option<String>,
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}
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impl Record for UploadRecord {
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fn text(&self) -> String {
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format!(
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"{}\t{}\t{}/{}\t{}",
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self.status,
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sanitize(&self.user),
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self.bytes_sent,
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self.size,
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sanitize(&self.path)
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)
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}
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}
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/// Who we are and what this session offers the network.
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#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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pub struct WhoamiRecord {
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pub user: String,
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pub server: String,
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pub listening: bool,
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pub listen_port: u16,
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pub shared_folders: u32,
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pub shared_files: u32,
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pub download_dir: String,
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/// Seconds of privileges left on this account, or `null` when the server
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/// did not answer in time. Zero means an ordinary account.
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pub privilege_seconds: Option<u32>,
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}
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impl Record for WhoamiRecord {
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fn text(&self) -> String {
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format!(
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"{}\t{}\t{}\t{}",
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sanitize(&self.user),
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sanitize(&self.server),
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self.shared_folders,
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self.shared_files
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)
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}
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}
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/// What the server knows about another user.
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/// Each field is `None` when the server has not answered that half yet, so a
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/// consumer never reads "offline" or "shares nothing" from a missing reply.
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#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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pub struct UserRecord {
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pub user: String,
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/// `online`, `away`, or `offline`.
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pub status: Option<String>,
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pub privileged: Option<bool>,
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pub average_speed: Option<u32>,
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pub shared_files: Option<u32>,
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pub shared_folders: Option<u32>,
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}
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impl Record for UserRecord {
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fn text(&self) -> String {
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let unknown = || "-".to_string();
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format!(
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"{}\t{}\t{}\t{}",
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sanitize(&self.user),
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self.status.clone().unwrap_or_else(unknown),
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self.average_speed.map_or_else(unknown, |v| v.to_string()),
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self.shared_files.map_or_else(unknown, |v| v.to_string())
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)
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}
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}
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/// One member of a chat room, with the server's description of them.
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///
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/// The statistics come from the reply that named the members, and are `None`
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/// for a server that sent none — so a consumer never reads "shares nothing"
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/// from a missing answer.
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#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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pub struct RoomMemberRecord {
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pub room: String,
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pub user: String,
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/// `online`, `away`, or `offline`.
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pub status: Option<String>,
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pub average_speed: Option<u32>,
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pub shared_files: Option<u32>,
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pub shared_folders: Option<u32>,
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pub slots_full: Option<bool>,
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pub country: Option<String>,
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}
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impl Record for RoomMemberRecord {
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/// The username alone, unchanged by the statistics added alongside it:
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/// the text line is a roster a caller pipes into other commands, and the
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/// statistics are there for `--json` to carry.
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fn text(&self) -> String {
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sanitize(&self.user)
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}
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}
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/// One configured share folder.
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#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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pub struct ShareRecord {
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pub directory: String,
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/// False when the folder is configured but missing on disk.
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pub usable: bool,
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}
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impl Record for ShareRecord {
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fn text(&self) -> String {
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format!(
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"{}\t{}",
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if self.usable { "ok" } else { "missing" },
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sanitize(&self.directory)
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)
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}
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}
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/// What the share index currently holds.
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#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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pub struct ShareStatusRecord {
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pub folders: u32,
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pub files: u32,
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pub directories: Vec<String>,
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}
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impl Record for ShareStatusRecord {
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fn text(&self) -> String {
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format!("{}\t{}", self.folders, self.files)
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}
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}
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/// One standing search on the wishlist.
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#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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pub struct WishRecord {
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pub query: String,
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}
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impl Record for WishRecord {
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fn text(&self) -> String {
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sanitize(&self.query)
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}
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}
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/// One configuration setting.
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#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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pub struct ConfigRecord {
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pub key: String,
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pub value: Option<String>,
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}
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impl Record for ConfigRecord {
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fn text(&self) -> String {
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format!(
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"{}\t{}",
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sanitize(&self.key),
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sanitize(self.value.as_deref().unwrap_or_default())
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)
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}
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}
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/// What happened to one agent's copy of the skill.
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|
#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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pub struct SkillRecord {
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/// The agent the directory belongs to, or `custom` for a `--dir`.
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pub agent: String,
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pub path: String,
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/// `installed` (written), `unchanged` (already identical), `outdated`
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/// (present but different, reported by `list`), `removed`, or `absent`.
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pub action: String,
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}
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impl Record for SkillRecord {
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fn text(&self) -> String {
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format!(
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"{}\t{}\t{}",
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sanitize(&self.action),
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sanitize(&self.agent),
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sanitize(&self.path)
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)
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}
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}
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|
|
/// What happened to one shell's completion script.
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|
#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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|
pub struct CompletionRecord {
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|
/// `bash`, `zsh`, or `fish`.
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|
pub shell: String,
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|
pub path: String,
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|
/// `installed` (written), `unchanged` (already identical), `removed`, or
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/// `absent`.
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pub action: String,
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}
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|
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impl Record for CompletionRecord {
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|
fn text(&self) -> String {
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|
format!(
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|
"{}\t{}\t{}",
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sanitize(&self.action),
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sanitize(&self.shell),
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|
sanitize(&self.path)
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)
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}
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}
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|
|
/// The token a remote client authenticates with.
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|
#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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|
pub struct TokenRecord {
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|
pub token: String,
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|
}
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|
|
impl Record for TokenRecord {
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|
fn text(&self) -> String {
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sanitize(&self.token)
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}
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}
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|
|
/// What a running daemon is and what its session is doing.
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|
#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
|
|
pub struct DaemonStatusRecord {
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|
pub user: String,
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|
pub server: String,
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|
pub version: String,
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|
pub protocol: u32,
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|
pub listening: bool,
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|
pub listen_port: u16,
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pub shared_folders: u32,
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|
pub shared_files: u32,
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pub download_dir: String,
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|
/// `displaced` or `disconnected` when the server session has ended.
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|
pub session_loss: Option<String>,
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/// Control connections currently attached.
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|
pub clients: usize,
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|
pub uptime_secs: u64,
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}
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|
|
impl Record for DaemonStatusRecord {
|
|
fn text(&self) -> String {
|
|
format!(
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|
"{}\t{}\t{}\t{}",
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sanitize(&self.user),
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|
sanitize(&self.server),
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|
self.clients,
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|
self.uptime_secs
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|
)
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|
}
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}
|
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|
|
/// The result of probing automatic port mapping.
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|
#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
|
|
pub struct PortmapRecord {
|
|
pub ok: bool,
|
|
pub backend: String,
|
|
pub external: Option<String>,
|
|
pub port: u16,
|
|
}
|
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|
|
impl Record for PortmapRecord {
|
|
fn text(&self) -> String {
|
|
format!(
|
|
"{}\t{}\t{}",
|
|
if self.ok { "ok" } else { "failed" },
|
|
sanitize(&self.backend),
|
|
self.external.as_deref().unwrap_or("-")
|
|
)
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
|
|
fn search_record() -> SearchRecord {
|
|
SearchRecord {
|
|
user: "bob".into(),
|
|
path: "@@dir\\01 - Track.mp3".into(),
|
|
size: 4096,
|
|
bitrate: Some(320),
|
|
duration: Some(210),
|
|
free_slot: true,
|
|
slots: 1,
|
|
speed: 1000,
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn exit_codes_are_stable() {
|
|
assert_eq!(Exit::Ok.code(), 0);
|
|
assert_eq!(Exit::Failure.code(), 1);
|
|
assert_eq!(Exit::Usage.code(), 2);
|
|
assert_eq!(Exit::Connection.code(), 3);
|
|
assert_eq!(Exit::NoResults.code(), 4);
|
|
assert_eq!(Exit::Timeout.code(), 5);
|
|
assert_eq!(Exit::Transfer.code(), 6);
|
|
assert_eq!(Exit::SessionLost.code(), 7);
|
|
}
|
|
|
|
#[test]
|
|
fn sanitize_keeps_records_on_one_line_with_stable_columns() {
|
|
assert_eq!(sanitize("a\tb\nc\r\nd"), "a b c d");
|
|
assert_eq!(
|
|
sanitize("plain (name) [2024].mp3"),
|
|
"plain (name) [2024].mp3"
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn search_text_is_user_size_bitrate_path() {
|
|
let text = search_record().text();
|
|
let fields: Vec<&str> = text.split('\t').collect();
|
|
assert_eq!(fields, ["bob", "4096", "320", "@@dir\\01 - Track.mp3"]);
|
|
}
|
|
|
|
#[test]
|
|
fn unknown_bitrate_renders_as_a_dash() {
|
|
let record = SearchRecord {
|
|
bitrate: None,
|
|
..search_record()
|
|
};
|
|
assert_eq!(record.text().split('\t').nth(2), Some("-"));
|
|
}
|
|
|
|
#[test]
|
|
fn search_json_carries_every_field() {
|
|
let json = serde_json::to_value(search_record()).unwrap();
|
|
assert_eq!(json["user"], "bob");
|
|
assert_eq!(json["size"], 4096);
|
|
assert_eq!(json["bitrate"], 320);
|
|
assert_eq!(json["duration"], 210);
|
|
assert_eq!(json["free_slot"], true);
|
|
assert_eq!(json["slots"], 1);
|
|
assert_eq!(json["speed"], 1000);
|
|
assert_eq!(json["path"], "@@dir\\01 - Track.mp3");
|
|
}
|
|
|
|
#[test]
|
|
fn a_tab_in_a_filename_cannot_forge_a_column() {
|
|
let record = SearchRecord {
|
|
path: "evil\tname.mp3".into(),
|
|
..search_record()
|
|
};
|
|
assert_eq!(record.text().split('\t').count(), 4);
|
|
}
|
|
|
|
#[test]
|
|
fn browse_text_is_user_size_path() {
|
|
let record = BrowseRecord {
|
|
user: "bob".into(),
|
|
directory: "@@music".into(),
|
|
path: "@@music\\a.flac".into(),
|
|
size: 12,
|
|
};
|
|
assert_eq!(record.text(), "bob\t12\t@@music\\a.flac");
|
|
}
|
|
|
|
#[test]
|
|
fn download_text_is_just_the_local_path() {
|
|
let record = DownloadRecord {
|
|
user: "bob".into(),
|
|
path: "@@music\\a.flac".into(),
|
|
size: 12,
|
|
file: "/music/a.flac".into(),
|
|
};
|
|
assert_eq!(record.text(), "/music/a.flac");
|
|
}
|
|
|
|
#[test]
|
|
fn room_text_leads_with_the_user_count() {
|
|
let record = RoomRecord {
|
|
room: "indie rock".into(),
|
|
users: 42,
|
|
};
|
|
assert_eq!(record.text(), "42\tindie rock");
|
|
}
|
|
|
|
#[test]
|
|
fn room_event_type_is_first_and_serializes_as_type() {
|
|
let record = RoomEventRecord {
|
|
kind: "message",
|
|
room: "lobby".into(),
|
|
user: "bob".into(),
|
|
message: "hi".into(),
|
|
};
|
|
assert_eq!(record.text(), "message\tlobby\tbob\thi");
|
|
let json = serde_json::to_value(&record).unwrap();
|
|
assert_eq!(json["type"], "message");
|
|
}
|
|
|
|
#[test]
|
|
fn portmap_text_reports_status_backend_and_address() {
|
|
let ok = PortmapRecord {
|
|
ok: true,
|
|
backend: "upnp".into(),
|
|
external: Some("1.2.3.4:2234".into()),
|
|
port: 2234,
|
|
};
|
|
assert_eq!(ok.text(), "ok\tupnp\t1.2.3.4:2234");
|
|
let failed = PortmapRecord {
|
|
ok: false,
|
|
backend: "none".into(),
|
|
external: None,
|
|
port: 2234,
|
|
};
|
|
assert_eq!(failed.text(), "failed\tnone\t-");
|
|
}
|
|
}
|