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use crate::utilities::{die, ConfigHashMap};
use ini::ini;
use std::collections::HashMap;
use std::fs::{create_dir, File};
use std::io::Write;
use std::path::PathBuf;
use configparser::ini::Ini;
pub struct GitRepository {
pub worktree: PathBuf,
gitdir: PathBuf,
conf: HashMap<String, HashMap<String, Option<String>>>
}
impl GitRepository {
pub fn new(worktree: PathBuf) -> Self {
let gitdir = worktree.join(".git");
let conf: ConfigHashMap = HashMap::new();
Self { worktree, gitdir, conf }
}
pub fn from_dir(worktree: PathBuf) -> Self {
if !worktree.exists() {
die("Worktree does not exist");
}
let gitdir = worktree.join(".git");
if !gitdir.exists() {
die("Not a valid git repository");
}
let conf_file = gitdir.join("config");
if !conf_file.exists() {
die("Config file does not exist");
}
let conf = ini!(conf_file.to_str().unwrap());
let repo_format_version = conf["core"]["repositoryformatversion"].clone();
if let Some(version) = repo_format_version {
if version != "0" {
die("Unsupported format version");
}
} else {
die("Could not determine repository format version");
}
Self {
worktree,
gitdir,
conf
}
}
pub fn create_new_repo(worktree: PathBuf) {
let repo = GitRepository::new(worktree);
if repo.worktree.exists() {
if repo.gitdir.exists() {
die("Repo already exists");
}
}
let create_gitdir = create_dir(repo.gitdir.clone());
if let Err(_) = create_gitdir {
die("Failed to initialize repository");
}
if let Err(_) = create_dir(repo.gitdir.clone().join("objects")) {
die("Failed to create objects directory");
}
if let Err(_) = create_dir(repo.gitdir.clone().join("refs").join("heads")) {
die("Failed to create git refs/head directory");
}
if let Err(_) = create_dir(repo.gitdir.clone().join("refs").join("tags")) {
die("Failed to create git refs/tags directory");
}
if let Ok(mut head_file) = File::create(repo.gitdir.clone().join("HEAD")) {
if let Err(_) = head_file.write_all(&"ref: refs/heads/master\n".as_ref()) {
die("Failed to write HEAD file");
}
} else {
die("Failed to create HEAD file");
}
let mut config = Ini::new();
config.set("core", "repositoryformatversion", Some("0".to_owned()));
config.set("core", "filemode", Some("false".to_owned()));
config.set("core", "bare", Some("false".to_owned()));
if let Err(_) = config.write(repo.gitdir.join("config")) {
die("Failed to write config file");
}
if let Ok(mut description_file) = File::create(repo.gitdir.clone().join("config")) {
if let Err(_) = description_file.write("Unnamed repository; edit this file 'description' to name the repository.\n".as_ref()) {
die("Failed to write description file");
}
}
}
}
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