refactor: Reduce cognitive complexity of 'validate_position'

Closes kemitix/git-next#83
This commit is contained in:
Paul Campbell 2024-07-16 19:59:11 +01:00
parent c104dfedc1
commit 92ebd45307

View file

@ -12,7 +12,6 @@ pub struct Positions {
pub dev_commit_history: Vec<git::Commit>,
}
#[allow(clippy::cognitive_complexity)] // TODO: (#83) reduce complexity
pub fn validate_positions(
open_repository: &dyn git::repository::OpenRepositoryLike,
repo_details: &git::RepoDetails,
@ -21,39 +20,31 @@ pub fn validate_positions(
let main_branch = repo_config.branches().main();
let next_branch = repo_config.branches().next();
let dev_branch = repo_config.branches().dev();
tracing::debug!(%main_branch, %next_branch, %dev_branch, "branches");
// Collect Commit Histories for `main`, `next` and `dev` branches
open_repository.fetch()?;
tracing::debug!("fetch okay");
let commit_histories = get_commit_histories(open_repository, &repo_config)?;
tracing::debug!(?commit_histories, "get commit histories okay");
// branch tips
let main =
commit_histories.main.first().cloned().ok_or_else(|| {
Error::NonRetryable(format!("Branch has no commits: {}", main_branch))
})?;
tracing::debug!("main branch okay");
let next =
commit_histories.next.first().cloned().ok_or_else(|| {
Error::NonRetryable(format!("Branch has no commits: {}", next_branch))
})?;
tracing::debug!("next branch okay");
let dev = commit_histories
.dev
.first()
.cloned()
.ok_or_else(|| Error::NonRetryable(format!("Branch has no commits: {}", dev_branch)))?;
tracing::debug!("dev branch okay");
// Validations:
// Dev must be on main branch, else the USER must rebase it
if is_not_based_on(&commit_histories.dev, &main) {
tracing::warn!("Dev '{dev_branch}' not based on main '{main_branch}' - user must rebase",);
return Err(Error::NonRetryable(format!(
"Branch '{}' not based on '{}'",
dev_branch, main_branch
)));
}
tracing::debug!("dev based on main okay");
// verify that next is on main or at most one commit on top of main, else reset it back to main
if is_not_based_on(
commit_histories
@ -68,14 +59,11 @@ pub fn validate_positions(
tracing::info!("Main not on same commit as next, or it's parent - resetting next to main",);
return reset_next_to_main(open_repository, repo_details, &main, &next, &next_branch);
}
tracing::debug!("next on or near main okay");
// verify that next is an ancestor of dev, else reset it back to main
if is_not_based_on(&commit_histories.dev, &next) {
tracing::info!("Next is not an ancestor of dev - resetting next to main");
return reset_next_to_main(open_repository, repo_details, &main, &next, &next_branch);
}
tracing::debug!("dev based on next okay");
Ok(git::validation::positions::Positions {
main,
next,