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use core::str;
use std::collections::HashMap;
use anyhow::{Context, Result};
use auth_git2::GitAuthenticator;
use client::get_state_from_cache;
use git::RepoActions;
use git_events::{event_to_cover_letter, get_commit_id_from_patch};
use ngit::{client, git, git_events, login::get_curent_user, repo_ref};
use nostr_sdk::hashes::sha1::Hash as Sha1Hash;
use repo_ref::RepoRef;
use crate::{
git::Repo,
utils::{
get_open_proposals, get_short_git_server_name, switch_clone_url_between_ssh_and_https,
},
};
pub async fn run_list(
git_repo: &Repo,
repo_ref: &RepoRef,
for_push: bool,
) -> Result<HashMap<String, HashMap<String, String>>> {
let nostr_state =
if let Ok(nostr_state) = get_state_from_cache(git_repo.get_path()?, repo_ref).await {
Some(nostr_state)
} else {
None
};
let term = console::Term::stderr();
let remote_states = list_from_remotes(&term, git_repo, &repo_ref.git_server)?;
let mut state = if let Some(nostr_state) = nostr_state {
for (name, value) in &nostr_state.state {
for (url, remote_state) in &remote_states {
let remote_name = get_short_git_server_name(git_repo, url);
if let Some(remote_value) = remote_state.get(name) {
if value.ne(remote_value) {
term.write_line(
format!(
"WARNING: {remote_name} {name} is {} nostr ",
if let Ok((ahead, behind)) =
get_ahead_behind(git_repo, value, remote_value)
{
format!("{} ahead {} behind", ahead.len(), behind.len())
} else {
"out of sync with".to_string()
}
)
.as_str(),
)?;
}
} else {
term.write_line(
format!("WARNING: {remote_name} {name} is missing but tracked on nostr")
.as_str(),
)?;
}
}
}
nostr_state.state
} else {
repo_ref
.git_server
.iter()
.filter_map(|server| remote_states.get(server))
.cloned()
.collect::<Vec<HashMap<String, String>>>()
.first()
.context("failed to get refs from git server")?
.clone()
};
state.retain(|k, _| !k.starts_with("refs/heads/pr/"));
let open_proposals = get_open_proposals(git_repo, repo_ref).await?;
let current_user = get_curent_user(git_repo)?;
for (_, (proposal, patches)) in open_proposals {
if let Ok(cl) = event_to_cover_letter(&proposal) {
if let Ok(mut branch_name) = cl.get_branch_name() {
branch_name = if let Some(public_key) = current_user {
if proposal.author().eq(&public_key) {
cl.branch_name.to_string()
} else {
branch_name
}
} else {
branch_name
};
if let Some(patch) = patches.first() {
// TODO this isn't resilient because the commit id stated may not be correct
// we will need to check whether the commit id exists in the repo or apply the
// proposal and each patch to check
if let Ok(commit_id) = get_commit_id_from_patch(patch) {
state.insert(format!("refs/heads/{branch_name}"), commit_id);
}
}
}
}
}
// TODO 'for push' should we check with the git servers to see if any of them
// allow push from the user?
for (name, value) in state {
if value.starts_with("ref: ") {
if !for_push {
println!("{} {name}", value.replace("ref: ", "@"));
}
} else {
println!("{value} {name}");
}
}
println!();
Ok(remote_states)
}
pub fn list_from_remotes(
term: &console::Term,
git_repo: &Repo,
git_servers: &Vec<String>,
) -> Result<HashMap<String, HashMap<String, String>>> {
let mut remote_states = HashMap::new();
for url in git_servers {
let short_name = get_short_git_server_name(git_repo, url);
term.write_line(format!("fetching refs list: {short_name}...").as_str())?;
match list_from_remote(git_repo, url) {
Ok(remote_state) => {
remote_states.insert(url.clone(), remote_state);
}
Err(error1) => {
if let Ok(alternative_url) = switch_clone_url_between_ssh_and_https(url) {
match list_from_remote(git_repo, &alternative_url) {
Ok(remote_state) => {
remote_states.insert(url.clone(), remote_state);
}
Err(error2) => {
term.write_line(
format!("WARNING: {short_name} failed to list refs error: {error1}\r\nand alternative protocol {alternative_url}: {error2}").as_str(),
)?;
}
}
} else {
term.write_line(
format!("WARNING: {short_name} failed to list refs error: {error1}",)
.as_str(),
)?;
}
}
}
term.clear_last_lines(1)?;
}
Ok(remote_states)
}
fn list_from_remote(
git_repo: &Repo,
git_server_remote_url: &str,
) -> Result<HashMap<String, String>> {
let git_config = git_repo.git_repo.config()?;
let mut git_server_remote = git_repo.git_repo.remote_anonymous(git_server_remote_url)?;
// authentication may be required
let auth = GitAuthenticator::default();
let mut remote_callbacks = git2::RemoteCallbacks::new();
remote_callbacks.credentials(auth.credentials(&git_config));
git_server_remote.connect_auth(git2::Direction::Fetch, Some(remote_callbacks), None)?;
let mut state = HashMap::new();
for head in git_server_remote.list()? {
if let Some(symbolic_reference) = head.symref_target() {
state.insert(
head.name().to_string(),
format!("ref: {symbolic_reference}"),
);
} else {
state.insert(head.name().to_string(), head.oid().to_string());
}
}
git_server_remote.disconnect()?;
Ok(state)
}
fn get_ahead_behind(
git_repo: &Repo,
base_ref_or_oid: &str,
latest_ref_or_oid: &str,
) -> Result<(Vec<Sha1Hash>, Vec<Sha1Hash>)> {
let base = git_repo.get_commit_or_tip_of_reference(base_ref_or_oid)?;
let latest = git_repo.get_commit_or_tip_of_reference(latest_ref_or_oid)?;
git_repo.get_commits_ahead_behind(&base, &latest)
}
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