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refactor: git: replace Mutex with RwLock in Repository
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This commit is contained in:
Paul Campbell 2024-06-30 13:12:43 +01:00
parent 52df2114e5
commit 73b416e3a0
5 changed files with 39 additions and 34 deletions
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6
crates/git/src/repository/mod.rs
View file

@ -1,5 +1,5 @@
// //
use std::sync::{atomic::AtomicBool, Arc, Mutex}; use std::sync::{atomic::AtomicBool, Arc, RwLock};
use derive_more::Deref as _; use derive_more::Deref as _;
@ -80,7 +80,7 @@ struct RealRepositoryFactory;
impl RepositoryFactory for RealRepositoryFactory { impl RepositoryFactory for RealRepositoryFactory {
fn open(&self, gitdir: &GitDir) -> Result<Box<dyn OpenRepositoryLike>> { fn open(&self, gitdir: &GitDir) -> Result<Box<dyn OpenRepositoryLike>> {
let gix_repo = gix::ThreadSafeRepository::open(gitdir.to_path_buf())?.to_thread_local(); let gix_repo = gix::ThreadSafeRepository::open(gitdir.to_path_buf())?.to_thread_local();
let repo = RealOpenRepository::new(Arc::new(Mutex::new(gix_repo))); let repo = RealOpenRepository::new(Arc::new(RwLock::new(gix_repo.into())));
Ok(Box::new(repo)) Ok(Box::new(repo))
} }
@ -93,7 +93,7 @@ impl RepositoryFactory for RealRepositoryFactory {
)? )?
.fetch_only(gix::progress::Discard, &AtomicBool::new(false))?; .fetch_only(gix::progress::Discard, &AtomicBool::new(false))?;
tracing::info!("created"); tracing::info!("created");
let repo = RealOpenRepository::new(Arc::new(Mutex::new(gix_repo))); let repo = RealOpenRepository::new(Arc::new(RwLock::new(gix_repo.into())));
Ok(Box::new(repo)) Ok(Box::new(repo))
} }

6
crates/git/src/repository/open/mod.rs
View file

@ -10,7 +10,7 @@ pub mod ofake;
use std::{ use std::{
path::Path, path::Path,
sync::{Arc, Mutex}, sync::{Arc, RwLock},
}; };
use crate as git; use crate as git;
@ -39,8 +39,8 @@ pub enum OpenRepository {
#[cfg(not(tarpaulin_include))] #[cfg(not(tarpaulin_include))]
pub fn real(gix_repo: gix::Repository) -> OpenRepository { pub fn real(gix_repo: gix::Repository) -> OpenRepository {
OpenRepository::Real(oreal::RealOpenRepository::new(Arc::new(Mutex::new( OpenRepository::Real(oreal::RealOpenRepository::new(Arc::new(RwLock::new(
gix_repo, gix_repo.into(),
)))) ))))
} }

22
crates/git/src/repository/open/ofake.rs
View file

@ -4,14 +4,14 @@ use git_next_config as config;
use std::{ use std::{
path::Path, path::Path,
sync::{Arc, Mutex}, sync::{Arc, RwLock},
}; };
#[derive(Clone, Debug, Default)] #[derive(Clone, Debug, Default)]
pub struct FakeOpenRepository { pub struct FakeOpenRepository {
default_push_remote: Arc<Mutex<Option<git::GitRemote>>>, default_push_remote: Arc<RwLock<Option<git::GitRemote>>>,
default_fetch_remote: Arc<Mutex<Option<git::GitRemote>>>, default_fetch_remote: Arc<RwLock<Option<git::GitRemote>>>,
operations: Arc<Mutex<Vec<String>>>, operations: Arc<RwLock<Vec<String>>>,
} }
impl FakeOpenRepository { impl FakeOpenRepository {
pub fn new() -> Self { pub fn new() -> Self {
@ -26,7 +26,7 @@ impl FakeOpenRepository {
match direction { match direction {
git::repository::Direction::Push => self git::repository::Direction::Push => self
.default_push_remote .default_push_remote
.lock() .write()
.map(|mut o| match remote { .map(|mut o| match remote {
Some(gr) => o.replace(gr), Some(gr) => o.replace(gr),
None => o.take(), None => o.take(),
@ -34,7 +34,7 @@ impl FakeOpenRepository {
.unwrap(), .unwrap(),
git::repository::Direction::Fetch => self git::repository::Direction::Fetch => self
.default_fetch_remote .default_fetch_remote
.lock() .write()
.map(|mut o| match remote { .map(|mut o| match remote {
Some(gr) => o.replace(gr), Some(gr) => o.replace(gr),
None => o.take(), None => o.take(),
@ -45,7 +45,7 @@ impl FakeOpenRepository {
pub fn operations(&self) -> Vec<String> { pub fn operations(&self) -> Vec<String> {
self.operations self.operations
.lock() .read()
.map(|operations| operations.clone()) .map(|operations| operations.clone())
.unwrap_or_default() .unwrap_or_default()
} }
@ -60,12 +60,12 @@ impl git::repository::OpenRepositoryLike for FakeOpenRepository {
match direction { match direction {
git::repository::Direction::Push => self git::repository::Direction::Push => self
.default_push_remote .default_push_remote
.lock() .read()
.map(|r| r.clone()) .map(|r| r.clone())
.unwrap_or(None), .unwrap_or(None),
git::repository::Direction::Fetch => self git::repository::Direction::Fetch => self
.default_fetch_remote .default_fetch_remote
.lock() .read()
.map(|r| r.clone()) .map(|r| r.clone())
.unwrap_or(None), .unwrap_or(None),
} }
@ -73,7 +73,7 @@ impl git::repository::OpenRepositoryLike for FakeOpenRepository {
fn fetch(&self) -> core::result::Result<(), crate::fetch::Error> { fn fetch(&self) -> core::result::Result<(), crate::fetch::Error> {
self.operations self.operations
.lock() .write()
.map_err(|_| crate::fetch::Error::Lock) .map_err(|_| crate::fetch::Error::Lock)
.map(|mut operations| operations.push("fetch".to_string()))?; .map(|mut operations| operations.push("fetch".to_string()))?;
Ok(()) Ok(())
@ -89,7 +89,7 @@ impl git::repository::OpenRepositoryLike for FakeOpenRepository {
let forge_alias = repo_details.forge.forge_alias(); let forge_alias = repo_details.forge.forge_alias();
let repo_alias = &repo_details.repo_alias; let repo_alias = &repo_details.repo_alias;
self.operations self.operations
.lock() .write()
.map_err(|_| crate::fetch::Error::Lock) .map_err(|_| crate::fetch::Error::Lock)
.map(|mut operations| { .map(|mut operations| {
operations.push(format!( operations.push(format!(

35
crates/git/src/repository/open/oreal.rs
View file

@ -7,20 +7,20 @@ use git_next_config as config;
use gix::bstr::BStr; use gix::bstr::BStr;
use std::{ use std::{
path::Path, path::Path,
sync::{Arc, Mutex}, sync::{Arc, RwLock},
}; };
use tracing::{info, warn}; use tracing::{info, warn};
#[derive(Clone, Debug, Constructor)] #[derive(Clone, Debug, Constructor)]
pub struct RealOpenRepository(Arc<Mutex<gix::Repository>>); pub struct RealOpenRepository(Arc<RwLock<gix::ThreadSafeRepository>>);
impl super::OpenRepositoryLike for RealOpenRepository { impl super::OpenRepositoryLike for RealOpenRepository {
fn remote_branches(&self) -> git::push::Result<Vec<config::BranchName>> { fn remote_branches(&self) -> git::push::Result<Vec<config::BranchName>> {
let refs = self let refs = self
.0 .0
.lock() .read()
.map_err(|_| git::push::Error::Lock) .map_err(|_| git::push::Error::Lock)
.and_then(|repo| { .and_then(|repo| {
Ok(repo.references()?).and_then(|refs| { Ok(repo.to_thread_local().references()?).and_then(|refs| {
Ok(refs.remote_branches().map(|rb| { Ok(refs.remote_branches().map(|rb| {
rb.filter_map(|rbi| rbi.ok()) rb.filter_map(|rbi| rbi.ok())
.map(|r| r.name().to_owned()) .map(|r| r.name().to_owned())
@ -37,11 +37,12 @@ impl super::OpenRepositoryLike for RealOpenRepository {
Ok(refs) Ok(refs)
} }
fn find_default_remote(&self, direction: git::repository::Direction) -> Option<git::GitRemote> { fn find_default_remote(&self, direction: git::repository::Direction) -> Option<git::GitRemote> {
let Ok(repository) = self.0.lock() else { let Ok(repository) = self.0.read() else {
#[cfg(not(tarpaulin_include))] // don't test mutex lock failure #[cfg(not(tarpaulin_include))] // don't test mutex lock failure
return None; return None;
}; };
let Some(Ok(remote)) = repository.find_default_remote(direction.into()) else { let thread_local = repository.to_thread_local();
let Some(Ok(remote)) = thread_local.find_default_remote(direction.into()) else {
#[cfg(not(tarpaulin_include))] // test is on local repo - should always have remotes #[cfg(not(tarpaulin_include))] // test is on local repo - should always have remotes
return None; return None;
}; };
@ -51,12 +52,13 @@ impl super::OpenRepositoryLike for RealOpenRepository {
#[tracing::instrument(skip_all)] #[tracing::instrument(skip_all)]
#[cfg(not(tarpaulin_include))] // would require writing to external service #[cfg(not(tarpaulin_include))] // would require writing to external service
fn fetch(&self) -> Result<(), git::fetch::Error> { fn fetch(&self) -> Result<(), git::fetch::Error> {
let Ok(repository) = self.0.lock() else { let Ok(repository) = self.0.read() else {
#[cfg(not(tarpaulin_include))] // don't test mutex lock failure #[cfg(not(tarpaulin_include))] // don't test mutex lock failure
return Err(git::fetch::Error::Lock); return Err(git::fetch::Error::Lock);
}; };
let thread_local = repository.to_thread_local();
let Some(Ok(remote)) = let Some(Ok(remote)) =
repository.find_default_remote(git::repository::Direction::Fetch.into()) thread_local.find_default_remote(git::repository::Direction::Fetch.into())
else { else {
#[cfg(not(tarpaulin_include))] // test is on local repo - should always have remotes #[cfg(not(tarpaulin_include))] // test is on local repo - should always have remotes
return Err(git::fetch::Error::NoFetchRemoteFound); return Err(git::fetch::Error::NoFetchRemoteFound);
@ -98,7 +100,7 @@ impl super::OpenRepositoryLike for RealOpenRepository {
.into(); .into();
let git_dir = self let git_dir = self
.0 .0
.lock() .read()
.map_err(|_| git::push::Error::Lock) .map_err(|_| git::push::Error::Lock)
.map(|r| r.git_dir().to_path_buf())?; .map(|r| r.git_dir().to_path_buf())?;
let ctx = gix::diff::command::Context { let ctx = gix::diff::command::Context {
@ -125,12 +127,13 @@ impl super::OpenRepositoryLike for RealOpenRepository {
false => 50, false => 50,
}; };
self.0 self.0
.lock() .read()
.map_err(|_| git::commit::log::Error::Lock) .map_err(|_| git::commit::log::Error::Lock)
.map(|repo| { .map(|repo| {
let branch = format!("remotes/origin/{branch_name}"); let branch = format!("remotes/origin/{branch_name}");
let branch = BStr::new(&branch); let branch = BStr::new(&branch);
let branch_head = repo let thread_local = repo.to_thread_local();
let branch_head = thread_local
.rev_parse_single(branch) .rev_parse_single(branch)
.map_err(|e| e.to_string()) .map_err(|e| e.to_string())
.map_err(as_gix_error(branch_name.clone()))?; .map_err(as_gix_error(branch_name.clone()))?;
@ -142,7 +145,7 @@ impl super::OpenRepositoryLike for RealOpenRepository {
.try_into_commit() .try_into_commit()
.map_err(|e| e.to_string()) .map_err(|e| e.to_string())
.map_err(as_gix_error(branch_name.clone()))?; .map_err(as_gix_error(branch_name.clone()))?;
let walk = repo let walk = thread_local
.rev_walk([commit.id]) .rev_walk([commit.id])
.all() .all()
.map_err(|e| e.to_string()) .map_err(|e| e.to_string())
@ -183,13 +186,15 @@ impl super::OpenRepositoryLike for RealOpenRepository {
file_name: &Path, file_name: &Path,
) -> git::file::Result<String> { ) -> git::file::Result<String> {
self.0 self.0
.lock() .read()
.map_err(|_| git::file::Error::Lock) .map_err(|_| git::file::Error::Lock)
.and_then(|repo| { .and_then(|repo| {
let fref = repo.find_reference(format!("origin/{}", branch_name).as_str())?; let thread_local = repo.to_thread_local();
let fref =
thread_local.find_reference(format!("origin/{}", branch_name).as_str())?;
let id = fref.try_id().ok_or(git::file::Error::TryId)?; let id = fref.try_id().ok_or(git::file::Error::TryId)?;
let oid = id.detach(); let oid = id.detach();
let obj = repo.find_object(oid)?; let obj = thread_local.find_object(oid)?;
let commit = obj.into_commit(); let commit = obj.into_commit();
let tree = commit.tree()?; let tree = commit.tree()?;
let ent = tree let ent = tree

4
crates/git/src/repository/open/otest.rs
View file

@ -5,7 +5,7 @@ use git_next_config as config;
use std::{ use std::{
path::Path, path::Path,
sync::{Arc, Mutex, RwLock}, sync::{Arc, RwLock},
}; };
pub type OnFetchFn = pub type OnFetchFn =
@ -154,7 +154,7 @@ impl TestOpenRepository {
fetch_counter: Arc::new(RwLock::new(0)), fetch_counter: Arc::new(RwLock::new(0)),
on_push, on_push,
push_counter: Arc::new(RwLock::new(0)), push_counter: Arc::new(RwLock::new(0)),
real: git::repository::RealOpenRepository::new(Arc::new(Mutex::new(gix))), real: git::repository::RealOpenRepository::new(Arc::new(RwLock::new(gix.into()))),
} }
} }