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use futures_util::StreamExt;
use serde::{Deserialize, Serialize};
use std::path::PathBuf;
use tokio::{fs, io::AsyncWriteExt};
use crate::{appimages_dir, index_dir, make_progress_bar};
#[derive(Debug, Serialize, Deserialize)]
pub struct AppImage {
pub file_path: PathBuf,
pub executable: String,
pub source: Source,
}
#[derive(Debug, Serialize, Deserialize)]
pub struct Source {
pub identifier: String,
pub meta: SourceMetadata,
}
#[derive(Debug, Serialize, Deserialize)]
pub struct SourceMetadata {
pub url: String,
}
#[derive(Debug)]
pub struct PackageManager {
pub downloader: Downloader,
pub index: Index,
pub symlink_manager: SymlinkManager,
}
#[derive(Debug, Default)]
pub struct Downloader {}
#[derive(Debug, Default)]
pub struct Index {}
#[derive(Debug, Default)]
pub struct SymlinkManager {}
impl PackageManager {
pub async fn install(
appimage: &AppImage,
appname: &str,
) -> Result<(), Box<dyn std::error::Error>> {
if index_dir()
.join(format!("{}.json", &appimage.executable))
.exists()
{
Err(format!("{} is already installed.", &appimage.executable).into())
} else {
// Try to extract filename from URL or use default
let url = &appimage.source.meta.url;
let filename = match url.split('/').next_back() {
Some(name) => name.to_string(),
None => format!("{}.AppImage", appimage.executable),
};
let path = &appimages_dir().join(filename);
let downloader = crate::Downloader::new();
downloader.download_with_progress(url, path).await?;
let index = crate::Index::new();
index.add(appimage, appname).await?;
let sm = crate::SymlinkManager::new();
sm.create(appimage).await?;
Ok(())
}
}
pub async fn remove(appname: &str) -> Result<(), Box<dyn std::error::Error>> {
let index_file_path = index_dir().join(format!("{appname}.json"));
let index_file_content = fs::read_to_string(&index_file_path).await?;
let appimage: AppImage = serde_json::from_str(&index_file_content)?;
let home = std::env::var("HOME")?;
let symlink_path = PathBuf::from(home)
.join(".local/bin")
.join(&appimage.executable);
let index_path = index_dir().join(format!("{}.json", &appimage.executable));
fs::remove_file(&appimage.file_path).await?;
fs::remove_file(symlink_path).await?;
fs::remove_file(index_path).await?;
Ok(())
}
}
impl Downloader {
pub fn new() -> Self {
Self {}
}
pub async fn download_with_progress(
&self,
url: &str,
path: &PathBuf,
) -> Result<(), Box<dyn std::error::Error>> {
fs::create_dir_all(&appimages_dir()).await?;
let resp = reqwest::get(&url.to_string()).await?;
let total_size = resp.content_length().unwrap_or(0);
let bar = make_progress_bar(total_size);
let mut out = tokio::fs::File::create(&path).await?;
// Stream download with progress updates
let mut stream = resp.bytes_stream();
while let Some(chunk) = stream.next().await {
let chunk = chunk?;
let len = chunk.len() as u64;
out.write_all(&chunk).await?;
bar.inc(len);
}
bar.finish_with_message("Download complete!");
// Make executable
#[cfg(unix)]
{
use std::os::unix::fs::PermissionsExt;
let mut perms = fs::metadata(&path).await?.permissions();
perms.set_mode(0o755);
fs::set_permissions(&path, perms).await?;
}
Ok(())
}
}
impl Index {
pub fn new() -> Self {
Self {}
}
pub async fn add(
&self,
appimage: &AppImage,
appname: &str,
) -> Result<(), Box<dyn std::error::Error>> {
fs::create_dir_all(&index_dir()).await?;
let index_file = &index_dir().join(format!("{appname}.json"));
let json = serde_json::to_string_pretty(appimage)?;
fs::write(index_file, json).await?;
Ok(())
}
}
impl SymlinkManager {
pub fn new() -> Self {
Self {}
}
pub async fn create(&self, appimage: &AppImage) -> Result<(), Box<dyn std::error::Error>> {
let home = std::env::var("HOME")?;
let local_bin = PathBuf::from(home).join(".local/bin");
fs::create_dir_all(&local_bin).await?;
let symlink_path = local_bin.join(&appimage.executable);
#[cfg(unix)]
{
use tokio::fs;
if symlink_path.exists() {
fs::remove_file(&symlink_path).await?;
}
std::os::unix::fs::symlink(&appimage.file_path, &symlink_path)?;
}
Ok(())
}
}
|
