chore: Release zfsbackup version 0.4.0

Also clean up some match arms.

Cargo.lock

@@ -154,12 +154,24 @@ version = "0.8.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "773648b94d0e5d620f64f280777445740e61fe701025087ec8b57f45c791888b"
 
+[[package]]
+name = "equivalent"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
+
 [[package]]
 name = "find-msvc-tools"
 version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5baebc0774151f905a1a2cc41989300b1e6fbb29aff0ceffa1064fdd3088d582"
 
+[[package]]
+name = "hashbrown"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4f467dd6dccf739c208452f8014c75c18bb8301b050ad1cfb27153803edb0f51"
+
 [[package]]
 name = "heck"
 version = "0.5.0"
@@ -190,6 +202,16 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "indexmap"
+version = "2.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d466e9454f08e4a911e14806c24e16fba1b4c121d1ea474396f396069cf949d9"
+dependencies = [
+ "equivalent",
+ "hashbrown",
+]
+
 [[package]]
 name = "is_terminal_polyfill"
 version = "1.70.2"
@@ -413,8 +435,9 @@ dependencies = [
 
 [[package]]
 name = "zfsbackup"
-version = "0.2.3"
+version = "0.4.0"
 dependencies = [
  "chrono",
  "clap",
+ "indexmap",
 ]

Cargo.toml

@@ -1,9 +1,10 @@
 [package]
 name = "zfsbackup"
-version = "0.2.3"
+version = "0.4.0"
 edition = "2024"
 publish = false
 
 [dependencies]
 chrono = "0.4.44"
 clap = { version = "4.6.1", features = ["derive"] }
+indexmap = "2.14.0"

src/command.rs

@@ -6,7 +6,12 @@ pub trait Filter {
     fn filter(&self, reader: Box<dyn Read>) -> Box<dyn Read>;
 }
 
-pub fn exec_command(command: &Vec<&str>) -> Result<String, String> {
+// TODO: Make this support quoting for args with spaces (and escape nested quotes)
+fn display_command(command: &Vec<&str>) -> String {
+    command.join(" ")
+}
+
+pub fn exec(command: &Vec<&str>) -> Result<String, String> {
     if command.is_empty() {
         return Err("Command is empty".to_string());
     }
@@ -14,11 +19,13 @@ pub fn exec_command(command: &Vec<&str>) -> Result<String, String> {
     if command.len() > 1 {
         cmd.args(&command[1..]);
     }
-    let output = cmd.output().map_err(|e| e.to_string())?;
+    let output = cmd
+        .output()
+        .map_err(|e| format!("Failed to run command {}: {}", command[0], e))?;
     if !output.status.success() {
         return Err(format!(
-            "Command {:?} failed with status {}: {}",
-            command,
+            "Command '{}' failed with status {}: {}",
+            display_command(command),
             output.status,
             String::from_utf8_lossy(&output.stderr)
         ));
@@ -27,7 +34,10 @@ pub fn exec_command(command: &Vec<&str>) -> Result<String, String> {
     Ok(output_str)
 }
 
-pub fn exec_piped_commands(
+/// Executes a pipeline of commands, where the output of the source command is passed through a
+/// series of filters before being piped into the destination command. The filters are applied in
+/// the order they are provided.
+pub fn exec_pipe(
     source: &Vec<&str>,
     dest: &Vec<&str>,
     filters: Vec<Box<dyn Filter>>,

src/job.rs

@@ -2,40 +2,39 @@ use crate::command;
 use crate::progress::BackupEvent;
 use crate::progress::filter;
 use chrono::{Local, NaiveDateTime};
+use indexmap::set::IndexSet;
 use std::collections::HashSet;
+use std::fmt;
 use std::sync::mpsc::Sender;
 
 pub struct Job {
-    datasets: HashSet<String>,
+    datasets: IndexSet<String>,
     target: String,
     source_zfs_command: Vec<String>,
     target_zfs_command: Vec<String>,
-    dryrun: bool,
     retain: usize,
     sender: Option<Sender<BackupEvent>>,
 }
 
-#[derive(Debug)]
+#[derive(Copy, Clone)]
 enum JobSide {
     Source,
-    Destination,
+    Target,
 }
 
-#[derive(Debug)]
 struct Snapshot {
-    snapshot: String,
+    dataset: String,
+    snapshot_id: String,
     side: JobSide,
 }
 
-impl Job {
-    pub fn dump(&self) {
-        println!("Datasets: {:?}", self.datasets);
-        println!("Target: {}", self.target);
-        println!("Source ZFS Command: {:?}", self.source_zfs_command);
-        println!("Target ZFS Command: {:?}", self.target_zfs_command);
-        println!("Dryrun: {}", self.dryrun);
+impl fmt::Display for Snapshot {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{}@{}", self.dataset, self.snapshot_id)
     }
+}
 
+impl Job {
     fn send_event(&self, event: BackupEvent) {
         if let Some(sender) = &self.sender {
             sender.send(event).ok();
@@ -45,16 +44,21 @@ impl Job {
     fn get_side_command(&self, side: JobSide) -> Vec<&str> {
         match side {
             JobSide::Source => self.source_zfs_command.iter().map(|s| s.as_str()).collect(),
-            JobSide::Destination => self.target_zfs_command.iter().map(|s| s.as_str()).collect(),
+            JobSide::Target => self.target_zfs_command.iter().map(|s| s.as_str()).collect(),
         }
     }
 
-    fn create_snapshot(&self, dataset: &str, side: JobSide) -> Result<String, String> {
-        let snapshot = format!("{}@{}", dataset, Local::now().format("%Y-%m-%dT%H:%M:%S"));
+    fn create_snapshot(&self, dataset: &str, side: JobSide) -> Result<Snapshot, String> {
+        let snapshot = Snapshot {
+            dataset: dataset.to_string(),
+            snapshot_id: Local::now().format("%Y-%m-%dT%H:%M:%S").to_string(),
+            side,
+        };
+        let name = snapshot.to_string();
         let mut cmd = self.get_side_command(side);
-        cmd.extend(["snapshot", &snapshot]);
-        command::exec_command(&cmd)?;
-        self.send_event(BackupEvent::SnapshotCreated(snapshot.clone()));
+        cmd.extend(["snapshot", &name]);
+        command::exec(&cmd)?;
+        self.send_event(BackupEvent::SnapshotCreated(name.clone()));
         Ok(snapshot)
     }
 
@@ -66,7 +70,7 @@ impl Job {
         }
         cmd.extend(["-n", "-P"]);
         cmd.push(source);
-        let output = command::exec_command(&cmd)?;
+        let output = command::exec(&cmd)?;
         let size = output
             .lines()
             .last()
@@ -79,6 +83,7 @@ impl Job {
         self.send_event(BackupEvent::Estimate(size));
         Ok(size)
     }
+
     fn send_receive(
         &self,
         source: &str,
@@ -93,21 +98,24 @@ impl Job {
         }
         send_cmd.push(source);
 
-        let mut receive_cmd = self.get_side_command(JobSide::Destination);
+        let mut receive_cmd = self.get_side_command(JobSide::Target);
         receive_cmd.extend(["receive", "-F", dest]);
-        let filters = match self.sender.as_ref() {
-            Some(sender) => vec![filter::CountingReaderBuilder::build(sender.clone(), total)],
+        let filters: Vec<Box<dyn command::Filter>> = match self.sender.as_ref() {
+            Some(sender) => vec![Box::new(filter::ByteCountFilter::new(
+                sender.clone(),
+                total,
+            ))],
             None => vec![],
         };
-        command::exec_piped_commands(&send_cmd, &receive_cmd, filters)?;
+        command::exec_pipe(&send_cmd, &receive_cmd, filters)?;
         self.send_event(BackupEvent::DatasetCompleted(source.to_string()));
         Ok(())
     }
 
-    fn list_snapshots(&self, source: &str, side: JobSide) -> Result<Vec<String>, String> {
+    fn list_snapshot_ids(&self, source: &str, side: JobSide) -> Result<Vec<String>, String> {
         let mut cmd = self.get_side_command(side);
         cmd.extend(["list", "-H", "-o", "name", "-t", "snapshot", source]);
-        let output = command::exec_command(&cmd)?;
+        let output = command::exec(&cmd)?;
         let snapshots: Vec<&str> = output
             .split_whitespace()
             .map(|s| {
@@ -127,16 +135,16 @@ impl Job {
         Ok(result)
     }
 
-    fn find_latest_matching_snapshot(&self, source: &str, dest: &str) -> Result<String, String> {
-        self.find_matching_snapshots(source, dest)?
+    fn find_latest_matching_snapshot_id(&self, source: &str, dest: &str) -> Result<String, String> {
+        self.find_matching_snapshot_ids(source, dest)?
             .into_iter()
             .next()
             .ok_or(String::from("no matching snapshots"))
     }
 
-    fn find_matching_snapshots(&self, source: &str, dest: &str) -> Result<Vec<String>, String> {
-        let source_snapshots = self.list_snapshots(source, JobSide::Source)?;
-        let mut dest_snapshots = self.list_snapshots(dest, JobSide::Destination)?;
+    fn find_matching_snapshot_ids(&self, source: &str, dest: &str) -> Result<Vec<String>, String> {
+        let source_snapshots = self.list_snapshot_ids(source, JobSide::Source)?;
+        let mut dest_snapshots = self.list_snapshot_ids(dest, JobSide::Target)?;
         dest_snapshots.sort_by(|a, b| b.cmp(a));
 
         let source_set: HashSet<String> = source_snapshots.into_iter().collect();
@@ -154,9 +162,9 @@ impl Job {
     }
 
     fn find_old_snapshots(&self, source: &str, dest: &str) -> Result<Vec<Snapshot>, String> {
-        let source_snapshots = self.list_snapshots(source, JobSide::Source)?;
-        let dest_snapshots = self.list_snapshots(dest, JobSide::Destination)?;
-        let matching_snapshots = self.find_matching_snapshots(source, dest)?;
+        let source_snapshots = self.list_snapshot_ids(source, JobSide::Source)?;
+        let dest_snapshots = self.list_snapshot_ids(dest, JobSide::Target)?;
+        let matching_snapshots = self.find_matching_snapshot_ids(source, dest)?;
         if matching_snapshots.is_empty() {
             return Err(String::from("no matching snapshots found"));
         }
@@ -165,7 +173,8 @@ impl Job {
             .into_iter()
             .filter(|s| !retain.contains(s))
             .map(|s| Snapshot {
-                snapshot: format!("{}@{}", source, s),
+                dataset: source.to_string(),
+                snapshot_id: s,
                 side: JobSide::Source,
             })
             .chain(
@@ -173,38 +182,38 @@ impl Job {
                     .into_iter()
                     .filter(|s| !retain.contains(s))
                     .map(|s| Snapshot {
-                        snapshot: format!("{}@{}", dest, s),
-                        side: JobSide::Destination,
+                        dataset: dest.to_string(),
+                        snapshot_id: s,
+                        side: JobSide::Target,
                     }),
             )
             .collect();
         Ok(result)
     }
 
-    fn delete_snapshot(&self, snapshot: Snapshot) -> Result<String, String> {
+    fn delete_snapshot(&self, snapshot: Snapshot) -> Result<(), String> {
         let mut cmd = self.get_side_command(snapshot.side);
-        cmd.extend(["destroy", &snapshot.snapshot]);
-        let res = command::exec_command(&cmd);
-        if res.is_ok() {
-            self.send_event(BackupEvent::SnapshotDeleted(snapshot.snapshot.clone()));
-        }
-        res
+        let name = snapshot.to_string();
+        cmd.extend(["destroy", &name]);
+        command::exec(&cmd)?;
+        self.send_event(BackupEvent::SnapshotDeleted(name.clone()));
+        Ok(())
     }
 
-    pub fn run(&self) -> Result<(), String> {
+    pub fn run(&self, execute: bool) -> Result<(), String> {
         for (index, source) in self.datasets.iter().enumerate() {
             // Check the source exists
             let mut cmd = self.get_side_command(JobSide::Source);
             cmd.extend(["list", "-H", "-o", "name", source]);
-            let _ = command::exec_command(&cmd)?;
+            let _ = command::exec(&cmd)?;
 
             // Check whether the destination exists
             // TODO: This will assume the destination doesn't exist if the
             // command fails for any reason.
             let dest = format!("{}/{}", self.target, source);
-            cmd = self.get_side_command(JobSide::Destination);
+            cmd = self.get_side_command(JobSide::Target);
             cmd.extend(["list", "-H", "-o", "name", &dest]);
-            let dest_exists = command::exec_command(&cmd).is_ok();
+            let dest_exists = command::exec(&cmd).is_ok();
 
             // Run backup
             if dest_exists {
@@ -217,20 +226,19 @@ impl Job {
                 let inc_snapshot = format!(
                     "{}@{}",
                     source,
-                    self.find_latest_matching_snapshot(source, &dest)?
+                    self.find_latest_matching_snapshot_id(source, &dest)?
                 );
 
                 let snapshot = self.create_snapshot(source, JobSide::Source)?;
-                let total = self.estimate(&snapshot, Some(&inc_snapshot)).ok();
-                if self.dryrun {
+                let total = self
+                    .estimate(&snapshot.to_string(), Some(&inc_snapshot))
+                    .ok();
+                if !execute {
                     self.send_event(BackupEvent::DryrunCompleted(source.clone()));
-                    self.delete_snapshot(Snapshot {
-                        snapshot: snapshot.clone(),
-                        side: JobSide::Source,
-                    })?;
-                    return Ok(());
+                    self.delete_snapshot(snapshot)?;
+                    continue;
                 }
-                self.send_receive(&snapshot, &dest, Some(&inc_snapshot), total)?;
+                self.send_receive(&snapshot.to_string(), &dest, Some(&inc_snapshot), total)?;
             } else {
                 self.send_event(BackupEvent::StartingFullBackup {
                     source: source.clone(),
@@ -239,16 +247,13 @@ impl Job {
                     total: self.datasets.len(),
                 });
                 let snapshot = self.create_snapshot(source, JobSide::Source)?;
-                let total = self.estimate(&snapshot, None).ok();
-                if self.dryrun {
+                let total = self.estimate(&snapshot.to_string(), None).ok();
+                if !execute {
                     self.send_event(BackupEvent::DryrunCompleted(source.clone()));
-                    self.delete_snapshot(Snapshot {
-                        snapshot: snapshot.clone(),
-                        side: JobSide::Source,
-                    })?;
-                    return Ok(());
+                    self.delete_snapshot(snapshot)?;
+                    continue;
                 }
-                self.send_receive(&snapshot, &dest, None, total)?;
+                self.send_receive(&snapshot.to_string(), &dest, None, total)?;
             }
 
             // Clean up snapshots
@@ -266,7 +271,6 @@ pub struct JobBuilder {
     target: String,
     source_zfs_command: Vec<String>,
     target_zfs_command: Vec<String>,
-    dryrun: bool,
     retain: usize,
     sender: Option<Sender<BackupEvent>>,
 }
@@ -281,24 +285,23 @@ fn parse_command(commandstr: &str) -> Vec<String> {
 
     for c in commandstr.chars() {
         match c {
+            '\'' if !in_double_quote => {
+                in_single_quote = !in_single_quote;
+            }
             '\'' => {
-                if !in_double_quote {
-                    in_single_quote = !in_single_quote;
-                } else {
-                    arg.push(c);
-                }
+                arg.push(c);
+            }
+            '"' if !in_single_quote => {
+                in_double_quote = !in_double_quote;
             }
             '"' => {
-                if !in_single_quote {
-                    in_double_quote = !in_double_quote;
-                } else {
-                    arg.push(c);
-                }
+                arg.push(c);
+            }
+            ' ' if in_single_quote || in_double_quote => {
+                arg.push(c);
             }
             ' ' => {
-                if in_single_quote || in_double_quote {
-                    arg.push(c);
-                } else if !arg.is_empty() {
+                if !arg.is_empty() {
                     command.push(arg.clone());
                     arg.clear();
                 }
@@ -324,7 +327,6 @@ impl JobBuilder {
             target,
             source_zfs_command: vec!["zfs".to_string()],
             target_zfs_command: vec!["zfs".to_string()],
-            dryrun: false,
             retain: 2,
             sender: None,
         }
@@ -349,11 +351,6 @@ impl JobBuilder {
         self
     }
 
-    pub fn dryrun(mut self) -> Self {
-        self.dryrun = true;
-        self
-    }
-
     pub fn retain(mut self, retain: usize) -> Self {
         self.retain = retain;
         self
@@ -365,7 +362,7 @@ impl JobBuilder {
     }
 
     pub fn build(self) -> Result<Job, String> {
-        let mut datasets: HashSet<String> = HashSet::new();
+        let mut datasets: IndexSet<String> = IndexSet::new();
         for source in &self.sources {
             let recurse = source.ends_with("/...");
             let source = source.trim_end_matches("/...");
@@ -378,18 +375,17 @@ impl JobBuilder {
 
             let mut cmd: Vec<&str> = self.source_zfs_command.iter().map(|s| s.as_str()).collect();
             cmd.extend(args);
-            let output = command::exec_command(&cmd)?;
+            let output = command::exec(&cmd)?;
             datasets.extend(output.lines().map(str::to_string));
         }
         if datasets.is_empty() {
             return Err(String::from("no matching source datasets found"));
         }
         Ok(Job {
-            datasets: datasets,
+            datasets,
             target: self.target,
             source_zfs_command: self.source_zfs_command,
             target_zfs_command: self.target_zfs_command,
-            dryrun: self.dryrun,
             retain: self.retain,
             sender: self.sender,
         })

src/main.rs

@@ -35,9 +35,6 @@ struct Args {
 fn main() -> Result<(), Box<dyn Error>> {
     let args = Args::parse();
     let mut builder = JobBuilder::new(args.datasets, args.target);
-    if args.dry_run {
-        builder = builder.dryrun();
-    }
     if let Some(cmd) = args.zfs_command {
         builder = builder.zfs_command(&cmd);
     }
@@ -57,11 +54,15 @@ fn main() -> Result<(), Box<dyn Error>> {
     } else {
         Box::new(log::Progressor::new(rx))
     };
-    thread::spawn(move || pr.run());
-
+    let handle = thread::spawn(move || pr.run());
     builder = builder.sender(tx);
 
-    let job = builder.build()?;
-    job.run()?;
+    // Create the job in a block so the sender is dropped before
+    // joining the progress thread, allowing it to exit cleanly.
+    {
+        let job = builder.build()?;
+        job.run(!args.dry_run)?;
+    }
+    handle.join().unwrap();
     Ok(())
 }

src/progress/filter.rs

@@ -4,7 +4,7 @@ use std::io::{self, Read};
 use std::sync::mpsc::Sender;
 use std::time::{Duration, Instant};
 
-struct CountingReader<R: Read> {
+struct ByteCountReader<R: Read> {
     inner: R,
     sender: Sender<BackupEvent>,
     bytes: u64,
@@ -12,7 +12,7 @@ struct CountingReader<R: Read> {
     total: Option<u64>,
 }
 
-impl<R: Read> Read for CountingReader<R> {
+impl<R: Read> Read for ByteCountReader<R> {
     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
         let n = self.inner.read(buf)?;
         self.bytes += n as u64;
@@ -29,31 +29,31 @@ impl<R: Read> Read for CountingReader<R> {
     }
 }
 
-impl<R: Read> CountingReader<R> {
+impl<R: Read> ByteCountReader<R> {
     fn new(inner: R, sender: Sender<BackupEvent>, total: Option<u64>) -> Self {
         Self {
             inner,
             sender,
-            total,
             bytes: 0,
             last_send: Instant::now() - Duration::from_secs(1),
+            total,
         }
     }
 }
 
-pub struct CountingReaderBuilder {
+pub(crate) struct ByteCountFilter {
     sender: Sender<BackupEvent>,
     total: Option<u64>,
 }
 
-impl Filter for CountingReaderBuilder {
-    fn filter(&self, reader: Box<dyn Read>) -> Box<dyn Read> {
-        Box::new(CountingReader::new(reader, self.sender.clone(), self.total))
+impl ByteCountFilter {
+    pub(crate) fn new(sender: Sender<BackupEvent>, total: Option<u64>) -> Self {
+        Self { sender, total }
     }
 }
 
-impl CountingReaderBuilder {
-    pub fn build(sender: Sender<BackupEvent>, total: Option<u64>) -> Box<dyn Filter> {
-        Box::new(Self { sender, total })
+impl Filter for ByteCountFilter {
+    fn filter(&self, inner: Box<dyn Read>) -> Box<dyn Read> {
+        Box::new(ByteCountReader::new(inner, self.sender.clone(), self.total))
     }
 }

src/progress/mod.rs

@@ -1,21 +1,30 @@
 pub mod filter;
 pub mod log;
+mod rate;
 pub mod terminal;
 
 pub trait Progressor: Send {
     fn run(&mut self);
 }
 
-fn human_bytes(bytes: u64) -> String {
+fn human_bytes(bytes: f64) -> String {
     let units = ["B", "kB", "MB", "GB", "TB"];
 
-    let mut value = bytes as f64;
-    let mut index = 0;
-    while value >= 1024.0 && index < units.len() - 1 {
-        value /= 1024.0;
-        index += 1;
+    let mut a = bytes;
+    let mut i = 0;
+    while a >= 1024.0 && i < units.len() - 1 {
+        a /= 1024.0;
+        i += 1;
     }
-    format!("{:.2} {:2}", value, units[index])
+    format!("{:.2} {:2}", a, units[i])
+}
+
+fn format_eta(seconds: f64) -> String {
+    let secs = seconds as u64;
+    let h = secs / 3600;
+    let m = (secs % 3600) / 60;
+    let s = secs % 60;
+    format!("{:02}:{:02}:{:02}", h, m, s)
 }
 
 pub enum BackupEvent {

src/progress/rate.rs

@@ -0,0 +1,74 @@
+use std::time::Instant;
+
+#[derive(Clone, Copy)]
+struct Sample {
+    at: Instant,
+    bytes: u64,
+}
+
+pub(crate) struct RateTracker {
+    samples: Vec<Sample>,
+    head: usize,
+    count: usize,
+    smoothed: f64,
+    alpha: f64,
+}
+
+impl RateTracker {
+    pub(crate) fn new(capacity: usize) -> Self {
+        RateTracker {
+            samples: vec![
+                Sample {
+                    at: Instant::now(),
+                    bytes: 0,
+                };
+                capacity
+            ],
+            head: 0,
+            count: 0,
+            smoothed: 0.0,
+            alpha: 0.05,
+        }
+    }
+
+    pub(crate) fn push(&mut self, bytes: u64) {
+        let sample = Sample {
+            at: Instant::now(),
+            bytes,
+        };
+        self.samples[self.head] = sample;
+        self.head = (self.head + 1) % self.samples.capacity();
+        self.count = (self.count + 1).min(self.samples.capacity())
+    }
+
+    pub(crate) fn rate(&mut self) -> Option<f64> {
+        if self.count < 2 {
+            return None;
+        }
+
+        let cap = self.samples.capacity();
+
+        let oldest_idx = (cap + self.head - self.count) % cap;
+        let newest_idx = (cap + self.head - 1) % cap;
+
+        let oldest = self.samples[oldest_idx];
+        let newest = self.samples[newest_idx];
+
+        let elapsed = newest.at.duration_since(oldest.at).as_secs_f64();
+        if elapsed == 0.0 {
+            return None;
+        }
+
+        // If for any reason oldest < newest, the subtraction will overflow
+        if newest.bytes < oldest.bytes {
+            return None;
+        }
+
+        let rate = (newest.bytes - oldest.bytes) as f64 / elapsed;
+
+        // exponentially weighted moving average to smooth those spikes
+        self.smoothed = self.alpha * rate + (1.0 - self.alpha) * self.smoothed;
+
+        Some(self.smoothed)
+    }
+}

src/progress/terminal.rs

@@ -1,9 +1,13 @@
+use crate::progress::format_eta;
+
+use super::rate::RateTracker;
 use super::{BackupEvent, human_bytes};
 use std::{io::Write, sync::mpsc::Receiver};
 
 pub struct Progressor {
     receiver: Receiver<BackupEvent>,
     estimated_size: u64,
+    rate_tracker: RateTracker,
 }
 
 impl super::Progressor for Progressor {
@@ -11,7 +15,7 @@ impl super::Progressor for Progressor {
         while let Ok(event) = self.receiver.recv() {
             match event {
                 BackupEvent::Estimate(size) => {
-                    println!("Estimated total backup size: {}", human_bytes(size));
+                    println!("Estimated total backup size: {}", human_bytes(size as f64));
                     self.estimated_size = size;
                 }
                 BackupEvent::StartingFullBackup {
@@ -53,15 +57,34 @@ impl super::Progressor for Progressor {
                             } else {
                                 0.0
                             };
+                            self.rate_tracker.push(bytes);
+                            let rate = self.rate_tracker.rate();
+                            let rate_display = match rate {
+                                None => String::from("[unknown]"),
+                                Some(0.0) => {
+                                    String::from("[stalled] ETA heat death of the universe")
+                                }
+                                Some(rate) => {
+                                    let eta = if bytes > total {
+                                        String::from("any moment now")
+                                    } else {
+                                        let eta = (total - bytes) as f64 / rate;
+                                        format_eta(eta)
+                                    };
+                                    format!("{}/s ETA {}", human_bytes(rate), eta)
+                                }
+                            };
+
                             print!(
-                                "{:>3.0}% {}/{} transferred\r",
+                                "\x1b[2K{:>3.0}% {}/{} @ {}\r",
                                 percent * 100.0,
-                                human_bytes(bytes),
-                                human_bytes(total)
+                                human_bytes(bytes as f64),
+                                human_bytes(total as f64),
+                                rate_display,
                             );
                         }
                         None => {
-                            print!("{} transferred\r", human_bytes(bytes));
+                            print!("\x1b[2K{} transferred\r", human_bytes(bytes as f64));
                         }
                     }
                     std::io::stdout().flush().ok();
@@ -82,6 +105,7 @@ impl Progressor {
         Self {
             receiver,
             estimated_size: 0,
+            rate_tracker: RateTracker::new(100),
         }
     }
 }