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use super::{
downloader::{http_get, write_bytes},
includes::{parse_includes, resolve_include},
provider::{FetchResult, Provider, RepoRef},
};
use std::{
collections::{HashSet, VecDeque},
fs,
path::{Path, PathBuf},
};
use url::Url;
pub struct Codeberg;
impl Codeberg {
// Gitea/Codeberg raw:
// https://codeberg.org/<owner>/<repo>/raw/<branch>/<path>
fn raw_url(r: &RepoRef, repo_rel: &str) -> String {
format!(
"https://codeberg.org/{}/{}/raw/{}/{}",
r.owner, r.repo, r.branch, repo_rel
)
}
// fn try_entry(r: &RepoRef, out: &Path, repo_rel: &str) -> Option<PathBuf> {
// let url = Self::raw_url(r, repo_rel);
// if let Ok(bytes) = http_get(&url) {
// let local = out.join(repo_rel);
// if write_bytes(&local, &bytes).is_ok() {
// return Some(local);
// }
// }
// None
// }
// fn branch_candidates(branch: &str) -> Vec<String> {
// if branch != "HEAD" {
// return vec![branch.to_string()];
// }
// // common defaults
// vec!["main".into(), "master".into(), "trunk".into()]
// }
fn fetch_file(
r: &RepoRef,
out_root: &Path,
repo_rel: &str,
) -> Result<PathBuf, Box<dyn std::error::Error>> {
let url = Self::raw_url(r, repo_rel);
let bytes = http_get(&url)?;
let local = out_root.join(repo_rel);
// Check for HTML/404 response
let is_html = bytes.starts_with(b"<!doctype html") || bytes.starts_with(b"<html");
if is_html {
let _ = std::fs::remove_file(&local);
return Err(format!("Codeberg: Got HTML/404 for {}", url).into());
}
if let Some(p) = local.parent() {
fs::create_dir_all(p)?;
}
write_bytes(&local, &bytes)?;
Ok(local)
}
}
impl Provider for Codeberg {
fn parse_url(&self, url: &str) -> Option<RepoRef> {
let u = Url::parse(url).ok()?;
if u.domain()? != "codeberg.org" {
return None;
}
let segs = u.path_segments()?.collect::<Vec<_>>();
if segs.len() < 2 {
return None;
}
let owner = segs[0].to_string();
let repo = segs[1].trim_end_matches(".git").to_string();
if segs.len() == 2 {
// repo root
return Some(RepoRef {
host: "codeberg.org".into(),
owner,
repo,
branch: "HEAD".into(),
path: None,
});
}
// Accept Gitea view routes: src/raw/tree/blob/blame and also tag/commit forms
match segs[2] {
// Standard: /<view>/<branch>/<path...>
"src" | "raw" | "tree" | "blob" | "blame" if segs.len() >= 4 => {
// handle multi-part ref: tag/<tag> or commit/<sha>
if segs[3] == "tag" && segs.len() >= 6 {
let branch = format!("tag/{}", segs[4]);
let path = if segs.len() > 5 {
Some(segs[5..].join("/"))
} else {
None
};
return Some(RepoRef {
host: "codeberg.org".into(),
owner,
repo,
branch,
path,
});
}
if segs[3] == "commit" && segs.len() >= 6 {
let branch = format!("commit/{}", segs[4]);
let path = if segs.len() > 5 {
Some(segs[5..].join("/"))
} else {
None
};
return Some(RepoRef {
host: "codeberg.org".into(),
owner,
repo,
branch,
path,
});
}
// Normal branch name
let branch = segs[3].to_string();
let path = if segs.len() > 4 {
Some(segs[4..].join("/"))
} else {
None
};
Some(RepoRef {
host: "codeberg.org".into(),
owner,
repo,
branch,
path,
})
}
_ => {
// Fallback: treat the rest as a path, unknown ref
let path = if segs.len() > 2 {
Some(segs[2..].join("/"))
} else {
None
};
Some(RepoRef {
host: "codeberg.org".into(),
owner,
repo,
branch: "HEAD".into(),
path,
})
}
}
}
fn fetch_tal_tree(
&self,
r: &RepoRef,
out_root: &Path,
) -> Result<FetchResult, Box<dyn std::error::Error>> {
let entry_rel = match &r.path {
Some(p)
if p.to_ascii_lowercase().ends_with(".tal")
|| p.to_ascii_lowercase().ends_with(".rom")
|| p.to_ascii_lowercase().ends_with(".rom.txt")
|| p.to_ascii_lowercase().ends_with(".orca") =>
{
p.replace('\\', "/")
}
_ => return Err(
"codeberg: URL must point to a .tal, .rom, .rom.txt, or .orca file; not guessing entries"
.into(),
),
};
// Check cache for entry file first
let entry_local = out_root.join(&entry_rel);
if entry_local.exists() {
eprintln!("[Codeberg] Using cached file: {}", entry_local.display());
return Ok(FetchResult {
entry_local: entry_local.clone(),
all_files: vec![entry_local],
});
}
let entry_local = Self::fetch_file(r, out_root, &entry_rel)?;
let mut all = vec![entry_local.clone()];
// Recursively fetch includes for .tal files
if entry_rel.to_ascii_lowercase().ends_with(".tal") {
let mut visited: HashSet<String> = [entry_rel.clone()].into_iter().collect();
let mut q: VecDeque<(String, PathBuf)> =
VecDeque::from([(entry_rel.clone(), entry_local.clone())]);
while let Some((curr_rel, curr_local)) = q.pop_front() {
let src = fs::read_to_string(&curr_local).unwrap_or_default();
for inc in parse_includes(&src) {
let target = resolve_include(&curr_rel, &inc);
if !visited.insert(target.clone()) {
continue;
}
let mut attempts: Vec<(String, Option<std::path::PathBuf>)> =
vec![(target.clone(), None)];
let mut success: Option<(String, PathBuf)> = None;
let mut errors: Vec<(String, String)> = vec![];
// Try original
match Self::fetch_file(r, out_root, &target) {
Ok(loc) => {
success = Some((target.clone(), loc));
}
Err(e) => {
let local = out_root.join(&target);
let _ = std::fs::remove_file(&local);
errors.push((target.clone(), format!("{}", e)));
}
}
// Fallback 1: deduped path
if success.is_none() {
let parts: Vec<&str> = target.split('/').collect();
if parts.len() >= 3 && parts[0] == parts[1] {
let deduped = parts[1..].join("/");
attempts.push((deduped.clone(), None));
match Self::fetch_file(r, out_root, &deduped) {
Ok(loc) => {
success = Some((deduped.clone(), loc));
}
Err(e) => {
let local = out_root.join(&deduped);
let _ = std::fs::remove_file(&local);
errors.push((deduped.clone(), format!("{}", e)));
}
}
}
}
// Fallback 2: walk up ancestor directories
if success.is_none() {
if let Some(fname) = Path::new(&target).file_name() {
let mut ancestor = Path::new(&target);
while let Some(parent) = ancestor.parent() {
let try_path = parent.join(fname);
let try_str = try_path.to_string_lossy().replace('\\', "/");
if try_str == target {
break;
}
attempts.push((try_str.clone(), None));
match Self::fetch_file(r, out_root, &try_str) {
Ok(loc) => {
success = Some((try_str.clone(), loc));
break;
}
Err(e) => {
let local = out_root.join(&try_str);
let _ = std::fs::remove_file(&local);
errors.push((try_str.clone(), format!("{}", e)));
}
}
ancestor = parent;
}
}
}
// Fallback 3: try just the filename in the entry file's directory
if success.is_none() {
if let Some(fname) = Path::new(&target).file_name() {
if let Some(entry_dir) = Path::new(&entry_rel).parent() {
let entry_dir_path = entry_dir.join(fname);
let entry_dir_str =
entry_dir_path.to_string_lossy().replace('\\', "/");
attempts.push((entry_dir_str.clone(), None));
match Self::fetch_file(r, out_root, &entry_dir_str) {
Ok(loc) => {
success = Some((entry_dir_str.clone(), loc));
}
Err(e) => {
let local = out_root.join(&entry_dir_str);
let _ = std::fs::remove_file(&local);
errors.push((entry_dir_str.clone(), format!("{}", e)));
}
}
}
}
}
if let Some((path, loc)) = success {
all.push(loc.clone());
q.push_back((path, loc));
continue;
}
// No fallback possible, return error with all attempts
let error_msg = format!(
"Failed to fetch include '{}'. Attempts: {}. Errors: {}",
inc,
attempts
.iter()
.map(|(p, _)| format!("'{}'", p))
.collect::<Vec<_>>()
.join(", "),
errors
.iter()
.map(|(p, e)| format!("{}: {}", p, e))
.collect::<Vec<_>>()
.join("; ")
);
return Err(error_msg.into());
}
}
}
Ok(FetchResult {
entry_local: all[0].clone(),
all_files: all,
})
// for b in Self::branch_candidates(&r_in.branch) {
// let r = RepoRef {
// branch: b.clone(),
// ..r_in.clone()
// };
// // figure entry candidates
// let candidates: Vec<String> = match &r.path {
// Some(p) if p.ends_with(".tal") => vec![p.clone()],
// Some(p) if !p.is_empty() => repo_entry_guesses()
// .iter()
// .map(|g| format!("{}/{}", p.trim_end_matches('/'), g))
// .collect(),
// _ => repo_entry_guesses().iter().map(|s| s.to_string()).collect(),
// };
// if let Some((entry_rel, entry_local)) = candidates
// .into_iter()
// .find_map(|c| Self::try_entry(&r, out_root, &c).map(|l| (c, l)))
// {
// // BFS includes
// let mut visited = HashSet::new();
// let mut all = vec![entry_local.clone()];
// visited.insert(entry_rel.clone());
// let mut q = VecDeque::new();
// q.push_back((entry_rel, entry_local));
// let mut steps = 0usize;
// while let Some((repo_rel, local)) = q.pop_front() {
// if steps >= 200 {
// break;
// }
// steps += 1;
// let src = fs::read_to_string(&local).unwrap_or_default();
// for inc in parse_includes(&src) {
// let target = resolve_include(&repo_rel, &inc);
// if !visited.insert(target.clone()) {
// continue;
// }
// let url = Self::raw_url(&r, &target);
// match http_get(&url) {
// Ok(bytes) => {
// let loc = out_root.join(&target);
// if write_bytes(&loc, &bytes).is_ok() {
// all.push(loc.clone());
// q.push_back((target, loc));
// }
// }
// Err(_) => eprintln!(
// "warning: include not found in Codeberg repo: {} (branch {})",
// target, r.branch
// ),
// }
// }
// }
// return Ok(FetchResult {
// entry_local: all[0].clone(),
// all_files: all,
// });
// }
// }
// Err("Could not find an entry .tal in Codeberg repo across tried branches".into())
}
}