gps 7.3.3

Official CLI & library for Git Patch Stack
Documentation 
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use super::super::private::git;
use super::super::private::utils;

#[derive(Debug)]
pub enum RebaseError {
    RepositoryMissing,
    GetHeadBranchNameFailed,
    GetUpstreamBranchNameFailed,
    RebaseFailed(utils::ExecuteError),
}

pub fn rebase(continue_rebase: bool) -> Result<(), RebaseError> {
    if continue_rebase {
        utils::execute("git", &["rebase", "--continue"]).map_err(RebaseError::RebaseFailed)
    } else {
        let repo = git::create_cwd_repo().map_err(|_| RebaseError::RepositoryMissing)?;

        let head_ref = repo
            .head()
            .map_err(|_| RebaseError::GetHeadBranchNameFailed)?;
        let head_branch_shorthand = head_ref
            .shorthand()
            .ok_or(RebaseError::GetHeadBranchNameFailed)?;
        let head_branch_name = head_ref
            .name()
            .ok_or(RebaseError::GetHeadBranchNameFailed)?;

        let upstream_branch_name = git::branch_upstream_name(&repo, head_branch_name)
            .map_err(|_| RebaseError::GetUpstreamBranchNameFailed)?;

        utils::execute(
            "git",
            &[
                "rebase",
                "-i",
                "--onto",
                upstream_branch_name.as_str(),
                upstream_branch_name.as_str(),
                head_branch_shorthand,
            ],
        )
        .map_err(RebaseError::RebaseFailed)
    }
}