git-next/crates/forge/src/lib.rs

#![allow(dead_code)]

use git::OpenRepository;
use git_next_config::{BranchName, GitDir, RepoConfig};
use git_next_git::{self as git, GitRef, RepoDetails};
use kxio::network::Network;

#[cfg(feature = "forgejo")]
mod forgejo;

#[cfg(feature = "github")]
mod github;

mod mock_forge;

#[async_trait::async_trait]
pub trait ForgeLike {
    fn name(&self) -> String;

    /// Returns a list of all branches in the repo.
    async fn branches_get_all(&self) -> Result<Vec<BranchName>, branch::Error>;

    /// Returns the contents of the file.
    async fn file_contents_get(
        &self,
        branch: &BranchName,
        file_path: &str,
    ) -> Result<String, file::Error>;

    /// Assesses the relative positions of the main, next and dev branch and updates their
    /// positions as needed.
    async fn branches_validate_positions(
        &self,
        repository: OpenRepository,
        repo_config: RepoConfig,
    ) -> validation::Result;

    /// Moves a branch to a new commit.
    fn branch_reset(
        &self,
        repository: &OpenRepository,
        branch_name: BranchName,
        to_commit: GitRef,
        force: git::push::Force,
    ) -> git::push::Result;

    /// Checks the results of any (e.g. CI) status checks for the commit.
    async fn commit_status(&self, commit: &git::Commit) -> git::commit::Status;

    /// Clones a repo to disk.
    fn repo_clone(&self, gitdir: GitDir) -> Result<OpenRepository, git::repository::Error>;
}

#[derive(Clone, Debug)]
pub enum Forge {
    Mock(mock_forge::MockForgeEnv),
    #[allow(clippy::enum_variant_names)]
    #[cfg(feature = "forgejo")]
    ForgeJo(forgejo::ForgeJoEnv),
    #[cfg(feature = "github")]
    Github(github::GithubEnv),
}
impl Forge {
    pub const fn new_mock() -> Self {
        Self::Mock(mock_forge::MockForgeEnv::new())
    }
    #[cfg(feature = "forgejo")]
    pub const fn new_forgejo(
        repo_details: RepoDetails,
        net: Network,
        repo: git::Repository,
    ) -> Self {
        Self::ForgeJo(forgejo::ForgeJoEnv::new(repo_details, net, repo))
    }
    #[cfg(feature = "github")]
    pub const fn new_github(net: Network) -> Self {
        Self::Github(github::GithubEnv::new(net))
    }
}
impl std::ops::Deref for Forge {
    type Target = dyn ForgeLike;
    fn deref(&self) -> &Self::Target {
        match self {
            Self::Mock(env) => env,
            #[cfg(feature = "forgejo")]
            Self::ForgeJo(env) => env,
            #[cfg(feature = "github")]
            Forge::Github(env) => env,
        }
    }
}

pub mod branch {
    #[derive(Debug, derive_more::Display)]
    pub enum Error {
        #[display("Branch not found: {}", 0)]
        NotFound(git_next_config::BranchName),
        #[display("Unable to find any branches")]
        NoneFound,
    }
    impl std::error::Error for Error {}
}

pub mod file {
    #[derive(Debug, derive_more::Display)]
    pub enum Error {
        #[display("File not found: {}", 0)]
        NotFound(String),
        #[display("Unable to parse file contents")]
        ParseContent,
        #[display("Unable to decode from base64")]
        DecodeFromBase64,
        #[display("Unable to decoce from UTF-8")]
        DecodeFromUtf8,
        #[display("Unknown file encoding: {}", 0)]
        UnknownEncoding(String),
        #[display("Not a file: {}", 0)]
        NotFile(String),
        #[display("Unknown error (status: {})", 0)]
        Unknown(String),
    }
    impl std::error::Error for Error {}
}

pub mod validation {
    use git_next_config::BranchName;
    use git_next_git as git;

    pub type Result = core::result::Result<Positions, Error>;

    pub struct Positions {
        pub main: git::Commit,
        pub next: git::Commit,
        pub dev: git::Commit,
        pub dev_commit_history: Vec<git::Commit>,
    }

    #[derive(Debug, derive_more::Display)]
    pub enum Error {
        Network(Box<kxio::network::NetworkError>),
        #[display("Failed to Reset Branch {branch} to {commit}")]
        FailedToResetBranch {
            branch: BranchName,
            commit: git::Commit,
        },
        BranchReset(BranchName),
        BranchHasNoCommits(BranchName),
        DevBranchNotBasedOn(BranchName),
    }
    impl std::error::Error for Error {}
}

#[cfg(test)]
pub mod tests;