use std::{io, sync::atomic::Ordering};
use anyhow::bail;
use crate::OutputFormat;
#[cfg_attr(not(feature = "serde"), allow(unused_variables))]
pub fn info(
repo: gix::Repository,
format: OutputFormat,
out: impl io::Write,
mut err: impl io::Write,
) -> anyhow::Result<()> {
if format == OutputFormat::Human {
writeln!(err, "Only JSON is implemented - using that instead")?;
}
#[cfg_attr(feature = "serde", derive(serde::Serialize))]
pub struct Statistics {
#[cfg_attr(not(feature = "serde"), allow(dead_code))]
pub path: std::path::PathBuf,
#[cfg_attr(not(feature = "serde"), allow(dead_code))]
pub object_hash: String,
#[cfg_attr(not(feature = "serde"), allow(dead_code))]
pub use_multi_pack_index: bool,
#[cfg_attr(not(feature = "serde"), allow(dead_code))]
pub structure: Vec<gix::odb::store::structure::Record>,
#[cfg_attr(not(feature = "serde"), allow(dead_code))]
pub metrics: gix::odb::store::Metrics,
}
let store = repo.objects.store_ref();
let stats = Statistics {
path: store.path().into(),
object_hash: store.object_hash().to_string(),
use_multi_pack_index: store.use_multi_pack_index(),
structure: store.structure()?,
metrics: store.metrics(),
};
#[cfg(feature = "serde")]
{
serde_json::to_writer_pretty(out, &stats)?;
}
Ok(())
}
pub mod statistics {
use crate::OutputFormat;
pub const PROGRESS_RANGE: std::ops::RangeInclusive<u8> = 0..=3;
#[derive(Debug, Copy, Clone)]
pub struct Options {
pub format: OutputFormat,
pub thread_limit: Option<usize>,
pub extra_header_lookup: bool,
}
}
#[cfg_attr(not(feature = "serde"), allow(unused_variables))]
pub fn statistics(
repo: gix::Repository,
mut progress: impl gix::Progress,
out: impl io::Write,
mut err: impl io::Write,
statistics::Options {
format,
thread_limit,
extra_header_lookup,
}: statistics::Options,
) -> anyhow::Result<()> {
use bytesize::ByteSize;
use gix::odb::{find, HeaderExt};
if format == OutputFormat::Human {
writeln!(err, "Only JSON is implemented - using that instead")?;
}
progress.init(None, gix::progress::count("objects"));
progress.set_name("counting".into());
let counter = progress.counter();
let start = std::time::Instant::now();
#[cfg_attr(feature = "serde", derive(serde::Serialize))]
#[derive(Default)]
struct Statistics {
#[cfg_attr(feature = "serde", serde(skip_serializing))]
ids: Option<Vec<gix::ObjectId>>,
total_objects: usize,
loose_objects: usize,
packed_objects: usize,
packed_delta_objects: usize,
total_delta_chain_length: u64,
trees: usize,
trees_size: ByteSize,
tags: usize,
tags_size: ByteSize,
commits: usize,
commits_size: ByteSize,
blobs: usize,
blobs_size: ByteSize,
}
impl Statistics {
fn count(&mut self, kind: gix::object::Kind, size: u64) {
use gix::object::Kind::*;
match kind {
Commit => {
self.commits += 1;
self.commits_size += size;
}
Tree => {
self.trees += 1;
self.trees_size += size;
}
Tag => {
self.tags += 1;
self.tags_size += size;
}
Blob => {
self.blobs += 1;
self.blobs_size += size;
}
}
}
fn consume(&mut self, item: gix::odb::find::Header) {
match item {
find::Header::Loose { size, kind } => {
self.loose_objects += 1;
self.count(kind, size);
}
find::Header::Packed(packed) => {
self.packed_objects += 1;
self.packed_delta_objects += usize::from(packed.num_deltas > 0);
self.total_delta_chain_length += u64::from(packed.num_deltas);
self.count(packed.kind, packed.object_size);
}
}
}
}
#[derive(Default)]
struct Reduce {
stats: Statistics,
}
impl gix::parallel::Reduce for Reduce {
type Input = Result<Vec<(gix::ObjectId, gix::odb::find::Header)>, anyhow::Error>;
type FeedProduce = ();
type Output = Statistics;
type Error = anyhow::Error;
fn feed(&mut self, items: Self::Input) -> Result<Self::FeedProduce, Self::Error> {
for (id, item) in items? {
self.stats.consume(item);
if let Some(ids) = self.stats.ids.as_mut() {
ids.push(id);
}
}
Ok(())
}
fn finalize(mut self) -> Result<Self::Output, Self::Error> {
self.stats.total_objects = self.stats.loose_objects + self.stats.packed_objects;
Ok(self.stats)
}
}
let cancelled = || anyhow::anyhow!("Cancelled by user");
let object_ids = repo.objects.iter()?.filter_map(Result::ok);
let chunk_size = 1_000;
let mut stats = if gix::parallel::num_threads(thread_limit) > 1 {
gix::parallel::in_parallel(
gix::interrupt::Iter::new(
gix::features::iter::Chunks {
inner: object_ids,
size: chunk_size,
},
cancelled,
),
thread_limit,
{
let objects = repo.objects.clone();
move |_| (objects.clone().into_inner(), counter)
},
|ids, (handle, counter)| {
let ids = ids?;
counter.fetch_add(ids.len(), Ordering::Relaxed);
let out = ids
.into_iter()
.map(|id| handle.header(id).map(|hdr| (id, hdr)))
.collect::<Result<Vec<_>, _>>()?;
Ok(out)
},
Reduce {
stats: Statistics {
ids: extra_header_lookup.then(Vec::new),
..Default::default()
},
},
)?
} else {
if extra_header_lookup {
bail!("extra-header-lookup is only meaningful in threaded mode");
}
let mut stats = Statistics::default();
for (count, id) in object_ids.enumerate() {
if count % chunk_size == 0 && gix::interrupt::is_triggered() {
return Err(cancelled());
}
stats.consume(repo.objects.header(id)?);
progress.inc();
}
stats
};
progress.show_throughput(start);
if let Some(mut ids) = stats.ids.take() {
let start = std::time::Instant::now();
let repo = gix::open_opts(repo.git_dir(), repo.open_options().to_owned())?;
progress.set_name("re-counting".into());
progress.init(Some(ids.len()), gix::progress::count("objects"));
let counter = progress.counter();
counter.store(0, Ordering::Relaxed);
let errors = gix::parallel::in_parallel_with_slice(
&mut ids,
thread_limit,
{
let objects = repo.objects.clone();
move |_| (objects.clone().into_inner(), counter, false)
},
|id, (odb, counter, has_error), _threads_left, _stop_everything| -> anyhow::Result<()> {
counter.fetch_add(1, Ordering::Relaxed);
if let Err(_err) = odb.header(id) {
*has_error = true;
gix::trace::error!(err = ?_err, "Object that is known to be present wasn't found");
}
Ok(())
},
|| Some(std::time::Duration::from_millis(100)),
|(_, _, has_error)| has_error,
)?;
progress.show_throughput(start);
if errors.contains(&true) {
bail!("At least one object couldn't be looked up even though it must exist");
}
}
#[cfg(feature = "serde")]
{
serde_json::to_writer_pretty(out, &stats)?;
}
Ok(())
}
pub fn entries(repo: gix::Repository, format: OutputFormat, mut out: impl io::Write) -> anyhow::Result<()> {
if format != OutputFormat::Human {
bail!("Only human output format is supported at the moment");
}
for object in repo.objects.iter()? {
let object = object?;
writeln!(out, "{object}")?;
}
Ok(())
}