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use std::collections::BTreeMap;
use std::fmt;
use std::fmt::{Display, Formatter};
use std::ops::AddAssign;
use std::sync::Arc;
use std::sync::{Mutex, MutexGuard};
use std::time::{Duration, Instant};
use thousands::Separable;
use super::ui;
use super::ui::plain::PlainUI;
use super::ui::{compression_ratio, mbps_rate, UI};
use super::*;
const M: u64 = 1_000_000;
#[rustfmt::skip]
static KNOWN_COUNTERS: &'static [&'static str] = &[
"dir",
"file",
"file.empty",
"file.medium",
"file.large",
"symlink",
"backup.error.stat",
"block.read",
"block.write",
"block.corrupt",
"block.misplaced",
"block.already_present",
"index.hunk",
"source.error.metadata",
"source.selected",
"skipped.unsupported_file_kind",
"source.visited.directories",
"skipped.excluded.directories",
"skipped.excluded.files",
"skipped.excluded.symlinks",
"skipped.excluded.unknown",
];
#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
pub struct Sizes {
pub compressed: u64,
pub uncompressed: u64,
}
static KNOWN_SIZES: &'static [&'static str] = &["block", "file.bytes", "index"];
#[derive(Debug)]
pub struct Counts {
count: BTreeMap<&'static str, u64>,
sizes: BTreeMap<&'static str, Sizes>,
start: Instant,
latest_filename: String,
pub phase: String,
pub total_work: u64,
pub done_work: u64,
}
#[derive(Clone, Debug)]
pub struct Report {
counts: Arc<Mutex<Counts>>,
ui: Arc<Mutex<Box<UI + Send>>>,
print_filenames: bool,
}
pub trait HasReport {
fn report(&self) -> &Report;
}
impl AddAssign for Sizes {
fn add_assign(&mut self, other: Sizes) {
self.compressed += other.compressed;
self.uncompressed += other.uncompressed;
}
}
impl<'a> AddAssign<&'a Sizes> for Sizes {
fn add_assign(&mut self, other: &'a Sizes) {
self.compressed += other.compressed;
self.uncompressed += other.uncompressed;
}
}
impl Report {
pub fn new() -> Report {
Report::with_ui(Box::new(PlainUI::new()))
}
pub fn with_ui(ui_box: Box<UI + Send>) -> Report {
Report {
counts: Arc::new(Mutex::new(Counts::new())),
ui: Arc::new(Mutex::new(ui_box)),
print_filenames: false,
}
}
pub fn set_print_filenames(&mut self, p: bool) {
self.print_filenames = p;
}
fn mut_counts(&self) -> MutexGuard<Counts> {
self.counts.lock().unwrap()
}
pub fn borrow_counts(&self) -> MutexGuard<Counts> {
self.counts.lock().unwrap()
}
pub fn increment(&self, counter_name: &'static str, delta: u64) {
if let Some(c) = self.mut_counts().count.get_mut(counter_name) {
*c += delta;
} else {
panic!("unregistered counter {:?}", counter_name);
}
self.show_progress();
}
fn show_progress(&self) {
if let Ok(mut ui) = self.ui.try_lock() {
ui.show_progress(self);
}
}
pub fn increment_size(&self, counter_name: &str, sizes: Sizes) {
let mut counts = self.mut_counts();
let e = counts
.sizes
.get_mut(counter_name)
.expect("unregistered size counter");
*e += sizes;
}
pub fn merge_from(&self, from_report: &Report) {
let from_counts = from_report.mut_counts();
for (name, value) in &from_counts.count {
self.increment(name, *value);
}
for (name, s) in &from_counts.sizes {
self.increment_size(name, s.clone());
}
}
pub fn get_size(&self, counter_name: &str) -> Sizes {
self.borrow_counts().get_size(counter_name)
}
pub fn get_count(&self, counter_name: &str) -> u64 {
self.borrow_counts().get_count(counter_name)
}
pub fn start_entry(&self, entry: &Entry) {
if self.print_filenames {
self.print(&format!("{}", entry.apath()));
}
self.mut_counts().latest_filename = entry.apath().to_string();
}
pub fn set_phase<S: Into<String>>(&self, phase: S) {
self.mut_counts().phase = phase.into();
}
pub fn clear_phase(&self) {
self.set_phase("");
}
pub fn print(&self, s: &str) {
self.ui.lock().unwrap().print(s)
}
pub fn problem(&self, s: &str) {
self.ui.lock().unwrap().problem(s)
}
pub fn finish(&self) {
self.ui.lock().unwrap().finish()
}
pub fn set_total_work(&self, w: u64) {
let mut c = self.mut_counts();
c.total_work = w;
c.done_work = 0;
}
pub fn increment_work(&self, w: u64) {
self.mut_counts().done_work += w;
}
}
impl Default for Report {
fn default() -> Self {
Self::new()
}
}
impl Display for Report {
fn fmt(&self, f: &mut Formatter) -> std::result::Result<(), fmt::Error> {
writeln!(f, "Counts:")?;
let counts = self.mut_counts();
for (key, value) in &counts.count {
if *value > 0 {
writeln!(f, " {:<40} {:>9}", *key, *value)?;
}
}
writeln!(f, "Bytes (before and after compression):")?;
for (key, s) in &counts.sizes {
if s.uncompressed > 0 {
let ratio = ui::compression_ratio(s);
writeln!(
f,
" {:<40} {:>9} {:>9} {:>9.1}x",
*key, s.uncompressed, s.compressed, ratio
)?;
}
}
Ok(())
}
}
impl Counts {
fn new() -> Counts {
let mut count = BTreeMap::new();
for counter_name in KNOWN_COUNTERS {
count.insert(*counter_name, 0);
}
let mut sizes = BTreeMap::new();
for counter_name in KNOWN_SIZES {
sizes.insert(*counter_name, Sizes::default());
}
Counts {
count,
sizes,
start: Instant::now(),
latest_filename: String::new(),
phase: String::new(),
total_work: 0,
done_work: 0,
}
}
pub fn get_count(&self, counter_name: &str) -> u64 {
*self
.count
.get(counter_name)
.unwrap_or_else(|| panic!("unknown counter {:?}", counter_name))
}
pub fn get_size(&self, counter_name: &str) -> Sizes {
*self
.sizes
.get(counter_name)
.unwrap_or_else(|| panic!("unknown counter {:?}", counter_name))
}
pub fn elapsed_time(&self) -> Duration {
self.start.elapsed()
}
pub fn get_latest_filename(&self) -> &str {
&self.latest_filename
}
pub fn summary_for_restore(&self) -> String {
format!(
"{:>12} MB in {} files, {} directories, {} symlinks.\n\
{:>12} MB/s output rate.\n\
{:>12} MB after deduplication.\n\
{:>12} MB in {} blocks after {:.1}x compression.\n\
{:>12} MB in {} compressed index hunks.\n\
{:>12} s elapsed.\n",
(self.get_size("file.bytes").uncompressed / M).separate_with_commas(),
self.get_count("file").separate_with_commas(),
self.get_count("dir").separate_with_commas(),
self.get_count("symlink").separate_with_commas(),
(mbps_rate(
self.get_size("file.bytes").uncompressed,
self.elapsed_time()
) as u64)
.separate_with_commas(),
(self.get_size("block").uncompressed / M).separate_with_commas(),
(self.get_size("block").compressed / M).separate_with_commas(),
self.get_count("block.read").separate_with_commas(),
compression_ratio(&self.get_size("block")),
(self.get_size("index").compressed / M).separate_with_commas(),
self.get_count("index.hunk").separate_with_commas(),
self.elapsed_time().as_secs(),
)
}
pub fn summary_for_backup(&self) -> String {
format!(
"{:>12} MB in {} files, {} directories, {} symlinks.\n\
{:>12} MB/s input rate.\n\
{:>12} MB after deduplication.\n\
{:>12} MB in {} blocks after {:.1}x compression.\n\
{:>12} MB in {} compressed index hunks.\n\
{:>12} s elapsed.\n",
(self.get_size("file.bytes").uncompressed / M).separate_with_commas(),
self.get_count("file").separate_with_commas(),
self.get_count("dir").separate_with_commas(),
self.get_count("symlink").separate_with_commas(),
(mbps_rate(
self.get_size("file.bytes").uncompressed,
self.elapsed_time()
) as u64)
.separate_with_commas(),
(self.get_size("block").uncompressed / M).separate_with_commas(),
(self.get_size("block").compressed / M).separate_with_commas(),
self.get_count("block.write").separate_with_commas(),
compression_ratio(&self.get_size("block")),
(self.get_size("index").compressed / M).separate_with_commas(),
self.get_count("index.hunk").separate_with_commas(),
self.elapsed_time().as_secs(),
)
}
pub fn summary_for_validate(&self) -> String {
format!(
"{:>12} MB in {} blocks.\n\
{:>12} MB/s block validation rate.\n\
{:>12} s elapsed.\n",
(self.get_size("block").uncompressed / M).separate_with_commas(),
self.get_count("block.read").separate_with_commas(),
(mbps_rate(self.get_size("block").uncompressed, self.elapsed_time()) as u64)
.separate_with_commas(),
self.elapsed_time().as_secs(),
)
}
}
#[cfg(test)]
mod tests {
use super::{Report, Sizes};
#[test]
pub fn count() {
let r = Report::new();
assert_eq!(r.borrow_counts().get_count("block.read"), 0);
r.increment("block.read", 1);
assert_eq!(r.borrow_counts().get_count("block.read"), 1);
r.increment("block.read", 10);
assert_eq!(r.borrow_counts().get_count("block.read"), 11);
}
#[test]
pub fn merge_reports() {
let r1 = Report::new();
let r2 = Report::new();
r1.increment("block.write", 1);
r1.increment("block.corrupt", 2);
r2.increment("block.write", 1);
r2.increment("block.corrupt", 10);
r2.increment_size(
"block",
Sizes {
uncompressed: 300,
compressed: 100,
},
);
r1.merge_from(&r2);
let cs = r1.borrow_counts();
assert_eq!(cs.get_count("block.write"), 2);
assert_eq!(cs.get_count("block.corrupt"), 12);
assert_eq!(
cs.get_size("block"),
Sizes {
uncompressed: 300,
compressed: 100,
}
);
}
#[rustfmt::skip]
#[test]
pub fn display() {
let r1 = Report::new();
r1.increment("block.write", 10);
r1.increment("block.write", 5);
r1.increment_size(
"block",
Sizes {
uncompressed: 300,
compressed: 100,
},
);
let formatted = format!("{}", r1);
assert_eq!(
formatted,
"\
Counts:
block.write 15
Bytes (before and after compression):
block 300 100 3.0x
"
);
}
}