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use anyhow::{bail, Context, Result};
#[cfg(not(test))]
use crate::client::Client;
#[cfg(test)]
use crate::client::MockConnect;
use crate::{
cli_interactor::{Interactor, InteractorPrompt, PromptChoiceParms, PromptConfirmParms},
client::Connect,
git::{Repo, RepoActions},
repo_ref,
sub_commands::prs::create::{PATCH_KIND, PR_KIND},
Cli,
};
#[derive(Debug, clap::Args)]
pub struct SubCommandArgs {
/// TODO ignore merged, and closed
#[arg(long, action)]
open_only: bool,
}
pub async fn launch(
_cli_args: &Cli,
_pr_args: &super::SubCommandArgs,
_args: &SubCommandArgs,
) -> Result<()> {
let git_repo = Repo::discover().context("cannot find a git repository")?;
let (main_or_master_branch_name, _) = git_repo
.get_main_or_master_branch()
.context("no main or master branch")?;
let root_commit = git_repo
.get_root_commit(main_or_master_branch_name)
.context("failed to get root commit of the repository")?;
// TODO: check for empty repo
// TODO: check for existing maintaiers file
// TODO: check for other claims
#[cfg(not(test))]
let client = Client::default();
#[cfg(test)]
let client = <MockConnect as std::default::Default>::default();
let repo_ref = repo_ref::fetch(
&git_repo,
root_commit.to_string(),
&client,
client.get_fallback_relays().clone(),
)
.await?;
println!("finding PRs...");
let pr_events: Vec<nostr::Event> = client
.get_events(
repo_ref.relays.clone(),
vec![
nostr::Filter::default()
.kind(nostr::Kind::Custom(PR_KIND))
.reference(format!("r-{root_commit}")),
],
)
.await?
.iter()
.filter(|e| {
e.kind.as_u64() == PR_KIND
&& e.tags
.iter()
.any(|t| t.as_vec().len() > 1 && t.as_vec()[1].eq(&format!("r-{root_commit}")))
})
.map(std::borrow::ToOwned::to_owned)
.collect();
// let pr_branch_names: Vec<String> = pr_events
// .iter()
// .map(|e| {
// format!(
// "{}-{}",
// &e.id.to_string()[..5],
// if let Some(t) = e.tags.iter().find(|t| t.as_vec()[0] ==
// "branch-name") { t.as_vec()[1].to_string()
// } else {
// "".to_string()
// } // git_repo.get_checked_out_branch_name(),
// )
// })
// .collect();
let selected_index = Interactor::default().choice(
PromptChoiceParms::default()
.with_prompt("All PRs")
.with_choices(
pr_events
.iter()
.map(|e| {
if let Ok(name) = tag_value(e, "name") {
name
} else {
e.id.to_string()
}
})
.collect(),
),
)?;
// println!("prs:{:?}", &pr_events);
println!("finding commits...");
let commits_events: Vec<nostr::Event> = client
.get_events(
repo_ref.relays.clone(),
vec![
nostr::Filter::default()
.kind(nostr::Kind::Custom(PATCH_KIND))
.event(pr_events[selected_index].id),
],
)
.await?
.iter()
.filter(|e| {
e.kind.as_u64() == PATCH_KIND
&& e.tags.iter().any(|t| {
t.as_vec().len() > 2
&& t.as_vec()[1].eq(&pr_events[selected_index].id.to_string())
})
})
.map(std::borrow::ToOwned::to_owned)
.collect();
confirm_checkout(&git_repo)?;
let most_recent_pr_patch_chain = get_most_recent_patch_with_ancestors(commits_events)
.context("cannot get most recent patch for PR")?;
let branch_name = tag_value(&pr_events[selected_index], "branch-name")?;
let applied = git_repo
.apply_patch_chain(&branch_name, most_recent_pr_patch_chain)
.context("cannot apply patch chain")?;
if applied.is_empty() {
println!("checked out PR branch. no new commits to pull");
} else {
println!(
"checked out PR branch. pulled {} new commits",
applied.len(),
);
}
Ok(())
}
fn confirm_checkout(git_repo: &Repo) -> Result<()> {
if !Interactor::default().confirm(
PromptConfirmParms::default()
.with_prompt("check out branch?")
.with_default(true),
)? {
bail!("Exiting...");
}
if git_repo.has_outstanding_changes()? {
bail!(
"cannot pull PR branch when repository is not clean. discard or stash (un)staged changes and try again."
);
}
Ok(())
}
pub fn tag_value(event: &nostr::Event, tag_name: &str) -> Result<String> {
Ok(event
.tags
.iter()
.find(|t| t.as_vec()[0].eq(tag_name))
.context(format!("tag '{tag_name}'not present"))?
.as_vec()[1]
.clone())
}
pub fn get_most_recent_patch_with_ancestors(
mut patches: Vec<nostr::Event>,
) -> Result<Vec<nostr::Event>> {
patches.sort_by_key(|e| e.created_at);
let mut res = vec![];
let latest_commit_id = tag_value(patches.first().context("no patches found")?, "commit")?;
let mut commit_id_to_search = latest_commit_id;
while let Some(event) = patches.iter().find(|e| {
tag_value(e, "commit")
.context("patch event doesnt contain commit tag")
.unwrap()
.eq(&commit_id_to_search)
}) {
res.push(event.clone());
commit_id_to_search = tag_value(event, "parent-commit")?;
}
Ok(res)
}
|