feat: implement a basic backend #1

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reya merged 5 commits from feat/backend into master 2026-08-05 00:57:53 +00:00
4 changed files with 1079 additions and 92 deletions
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+1 -1
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@@ -28,7 +28,7 @@ nostr-gossip-memory = { git = "https://github.com/rust-nostr/nostr", rev = "d0a1
nostr-connect = { git = "https://github.com/rust-nostr/nostr", rev = "d0a1d67d3c9e5cf9710807a6a414c155a5f47215" }
nostr-sdk = { git = "https://github.com/rust-nostr/nostr", rev = "d0a1d67d3c9e5cf9710807a6a414c155a5f47215" }
git2 = { version = "0.20", features = ["vendored-libgit2"] }
gix = { version = "0.86", default-features = false, features = ["sha1", "blocking-network-client", "blocking-http-transport-reqwest-rust-tls", "worktree-mutation"] }
chrono = { version = "0.4.38", features = ["wasmbind"] }
smol = "2"
+1 -1
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@@ -8,5 +8,5 @@ publish.workspace = true
signed_core = { path = "../signed_core" }
nostr.workspace = true
git2.workspace = true
gix.workspace = true
anyhow.workspace = true
+26 -15
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@@ -7,7 +7,8 @@ use std::path::{Path, PathBuf};
use std::process::{Command, Stdio};
use anyhow::{Context, Result, bail};
use git2::Repository;
use gix::interrupt::IS_INTERRUPTED;
use gix::progress::Discard;
use signed_core::RepoAddr;
/// On-disk cache of cloned repositories, keyed by owner pubkey / repo id.
@@ -29,18 +30,19 @@ impl GitCache {
}
/// Open an existing clone.
pub fn open(&self, addr: &RepoAddr) -> Result<Option<Repository>> {
pub fn open(&self, addr: &RepoAddr) -> Result<Option<gix::Repository>> {
let path = self.repo_path(addr);
match Repository::open(&path) {
match gix::open(&path) {
Ok(repo) => Ok(Some(repo)),
Err(e) if e.code() == git2::ErrorCode::NotFound => Ok(None),
Err(gix::open::Error::NotARepository { .. }) => Ok(None),
Err(gix::open::Error::Io(e)) if e.kind() == std::io::ErrorKind::NotFound => Ok(None),
Err(e) => Err(e.into()),
}
}
/// Open the local clone if it exists (fetching first), otherwise clone
/// from the first working URL in `clone_urls` (the announcement's `clone` tag).
pub fn ensure_clone(&self, addr: &RepoAddr, clone_urls: &[String]) -> Result<Repository> {
pub fn ensure_clone(&self, addr: &RepoAddr, clone_urls: &[String]) -> Result<gix::Repository> {
let path = self.repo_path(addr);
if let Some(repo) = self.open(addr)? {
@@ -53,9 +55,10 @@ impl GitCache {
.with_context(|| format!("failed to create {}", parent.display()))?;
}
let mut last_err: Option<git2::Error> = None;
let mut last_err: Option<anyhow::Error> = None;
for url in clone_urls {
match Repository::clone(url, &path) {
match clone(url, &path) {
Ok(repo) => return Ok(repo),
Err(e) => last_err = Some(e),
}
@@ -68,14 +71,12 @@ impl GitCache {
}
}
/// Fetch all heads from `origin`.
pub fn fetch_all(repo: &Repository) -> Result<()> {
let mut remote = repo.find_remote("origin")?;
remote.fetch(
&["+refs/heads/*:refs/remotes/origin/*", "+refs/tags/*:refs/tags/*"],
None,
None,
)?;
/// Fetch all configured refspecs from `origin`.
pub fn fetch_all(repo: &gix::Repository) -> Result<()> {
repo.find_remote("origin")?
.connect(gix::remote::Direction::Fetch)?
.prepare_fetch(Discard, Default::default())?
.receive(Discard, &IS_INTERRUPTED)?;
Ok(())
}
@@ -105,6 +106,16 @@ pub fn apply_patch(repo_path: &Path, patch: &str) -> Result<()> {
Ok(())
}
fn clone(url: &str, path: &Path) -> Result<gix::Repository> {
let url = gix::url::parse(url).context("invalid clone URL")?;
let mut prepare = gix::prepare_clone(url, path)?;
let (mut checkout, _fetch) = prepare.fetch_then_checkout(Discard, &IS_INTERRUPTED)?;
let (repo, _checkout) = checkout.main_worktree(Discard, &IS_INTERRUPTED)?;
Ok(repo)
}
fn sanitize_path_component(id: &str) -> String {
id.chars()
.map(|c| {