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use std::path::{Path, PathBuf};
#[derive(clap::Parser)]
struct Options {
/// Show more verbose statement.
#[clap(long, short)]
#[clap(global = true)]
#[clap(action = clap::ArgAction::Count)]
verbose: u8,
/// The subcommand.
#[clap(subcommand)]
command: Command,
}
#[derive(clap::Subcommand)]
enum Command {
Clone(CloneCommand),
Fetch(FetchCommand),
Push(PushCommand),
}
/// Clone a repository.
#[derive(clap::Parser)]
struct CloneCommand {
/// The URL of the repository to clone.
#[clap(value_name = "URL")]
repo: String,
/// The path where to clone the repository.
#[clap(value_name = "PATH")]
local_path: Option<PathBuf>,
}
/// Fetch from a remote.
#[derive(clap::Parser)]
struct FetchCommand {
/// The repository to operate on.
#[clap(value_name = "PATH")]
#[clap(short = 'C', long)]
repo: PathBuf,
/// The repository to operate on.
#[clap(value_name = "REMOTE")]
remote: String,
/// The refs to fetch.
#[clap(trailing_var_arg = true)]
#[clap(required = true)]
refspec: Vec<String>,
}
/// Push to a remote.
#[derive(clap::Parser)]
struct PushCommand {
/// The repository to operate on.
#[clap(value_name = "PATH")]
#[clap(short = 'C', long)]
#[clap(default_value = ".")]
repo: PathBuf,
/// The repository to operate on.
#[clap(value_name = "REMOTE")]
remote: String,
/// The refs to fetch.
#[clap(trailing_var_arg = true)]
#[clap(required = true)]
refspec: Vec<String>,
}
fn main() {
if let Err(()) = do_main(clap::Parser::parse()) {
std::process::exit(1);
}
}
fn log_level(verbose: u8) -> log::LevelFilter {
match verbose {
0 => log::LevelFilter::Info,
1 => log::LevelFilter::Debug,
2.. => log::LevelFilter::Trace,
}
}
fn do_main(options: Options) -> Result<(), ()> {
let log_level = log_level(options.verbose);
env_logger::builder()
.parse_default_env()
.filter_module(module_path!(), log_level)
.filter_module("auth_git2", log_level)
.init();
match options.command {
Command::Clone(command) => clone(command),
Command::Fetch(command) => fetch(command),
Command::Push(command) => push(command),
}
}
fn clone(command: CloneCommand) -> Result<(), ()> {
let local_path = command.local_path.as_deref()
.unwrap_or_else(|| Path::new(repo_name_from_url(&command.repo)));
log::info!("Cloning {} into {}", command.repo, local_path.display());
let auth = auth_git2::GitAuthenticator::default();
auth.clone_repo(&command.repo, local_path)
.map_err(|e| log::error!("Failed to clone {}: {}", command.repo, e))?;
Ok(())
}
fn fetch(command: FetchCommand) -> Result<(), ()> {
let repo = git2::Repository::open(&command.repo)
.map_err(|e| log::error!("Failed to open git repo at {}: {e}", command.repo.display()))?;
let refspecs: Vec<_> = command.refspec.iter().map(|x| x.as_str()).collect();
let auth = auth_git2::GitAuthenticator::default();
let mut remote = repo.find_remote(&command.remote)
.map_err(|e| log::error!("Failed to find remote {:?}: {e}", command.remote))?;
auth.fetch(&repo, &mut remote, &refspecs, None)
.map_err(|e| log::error!("Failed to fetch from remote {:?}: {e}", command.remote))?;
Ok(())
}
fn push(command: PushCommand) -> Result<(), ()> {
let repo = git2::Repository::open(&command.repo)
.map_err(|e| log::error!("Failed to open git repo at {}: {e}", command.repo.display()))?;
log::info!("Fetching {:?} from remote {:?}", command.refspec, command.remote);
let refspecs: Vec<_> = command.refspec.iter().map(|x| x.as_str()).collect();
let auth = auth_git2::GitAuthenticator::default();
let mut remote = repo.find_remote(&command.remote)
.map_err(|e| log::error!("Failed to find remote {:?}: {e}", command.remote))?;
auth.push(&repo, &mut remote, &refspecs,)
.map_err(|e| log::error!("Failed to push to remote {:?}: {e}", command.remote))?;
Ok(())
}
fn repo_name_from_url(url: &str) -> &str {
url.rsplit_once('/')
.map(|(_head, tail)| tail)
.unwrap_or(url)
}
|
