291 lines
8.9 KiB
Rust
291 lines
8.9 KiB
Rust
use std::collections::{HashMap, HashSet};
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use anyhow::{Result, anyhow};
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use serde::{Deserialize, Serialize};
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use tauri::{AppHandle, Emitter};
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use tokio::fs;
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use tokio::task::JoinSet;
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use crate::model::local::{PackageList, PackageListEntry};
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use crate::model::misc::Game;
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use crate::model::rainy;
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use crate::pkg::{Feature, Package, PackageSource, PkgKey, Remote, Status};
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use crate::util;
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use crate::download_handler::DownloadHandler;
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pub struct PackageStore {
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store: HashMap<PkgKey, Package>,
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meta_list: PackageList,
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dlh: DownloadHandler,
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app: AppHandle,
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offline: bool,
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}
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#[derive(Clone, Serialize, Deserialize, Debug)]
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pub struct Payload {
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pub pkg: PkgKey
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}
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#[derive(Clone, Copy, Serialize, Deserialize, Debug)]
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pub enum InstallResult {
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Ready, Deferred
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}
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impl PackageStore {
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pub fn new(app: AppHandle) -> PackageStore {
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let meta_list = std::fs::read_to_string(util::config_dir().join("package-list.json"))
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.map_err(|e| anyhow!(e))
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.and_then(|s| serde_json::from_str::<PackageList>(&s).map_err(|e| anyhow!(e)))
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.unwrap_or_else(|e| {
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log::warn!("unable to read package-list: {e}");
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PackageList::new()
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});
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PackageStore {
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store: HashMap::new(),
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meta_list,
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app: app.clone(),
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dlh: DownloadHandler::new(app),
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offline: true
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}
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}
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pub fn get(&self, key: &PkgKey) -> Result<&Package> {
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self.store.get(key)
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.ok_or_else(|| anyhow!("Invalid package key"))
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}
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pub fn get_all(&self) -> HashMap<PkgKey, Package> {
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self.store.clone()
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}
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pub fn get_game_list(&self, game: Game) -> Vec<PkgKey> {
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self.meta_list.iter()
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.filter(|(_, v)| v.games.contains(&game))
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.map(|(k, _)| k.clone())
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.collect()
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}
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#[allow(dead_code)]
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pub fn get_by_feature(&self, feature: Feature) -> Vec<PkgKey> {
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self.store.iter()
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.filter(|(_, v)| {
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if let Some(loc) = &v.loc {
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if let Status::OK(flags, _) = loc.status {
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return flags.contains(feature);
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}
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}
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return false
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})
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.map(|(k, _)| k.clone())
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.collect()
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}
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pub async fn reload_package(&mut self, key: PkgKey) {
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let dir = util::pkg_dir().join(&key.0);
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if let Ok((pkg, _)) = Package::from_dir(dir, PackageSource::Rainy).await {
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self.update_nonremote(key, pkg);
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} else {
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log::error!("couldn't reload {}", key);
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}
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}
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pub async fn reload_all(&mut self) -> Result<()> {
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let dirents = std::fs::read_dir(util::pkg_dir())?;
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let mut futures = JoinSet::new();
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for dir in dirents {
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if let Ok(dir) = dir {
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let path = dir.path();
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futures.spawn(Package::from_dir(path, PackageSource::Rainy));
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}
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}
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while let Some(res) = futures.join_next().await {
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if let Ok(Ok((pkg, locally_declared_games))) = res {
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if let Some(games) = locally_declared_games {
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self.meta_list.insert(pkg.key(), PackageListEntry {
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version: pkg.loc.as_ref().unwrap().version.clone(),
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games
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});
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}
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self.update_nonremote(pkg.key(), pkg);
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}
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}
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Ok(())
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}
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pub async fn save(&self) -> Result<()> {
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tokio::fs::write(
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util::config_dir().join("package-list.json"),
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serde_json::to_string_pretty(&self.meta_list)?
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).await?;
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Ok(())
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}
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pub async fn fetch_listings(game: Game) -> Result<Vec<rainy::V1Package>> {
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use async_compression::futures::bufread::GzipDecoder;
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use futures::{
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io::{self, BufReader, ErrorKind},
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prelude::*,
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};
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let response = reqwest::get(format!("https://www.rainycolor.org/c/{game}/api/v1/package/")).await?;
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let reader = response
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.bytes_stream()
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.map_err(|e| io::Error::new(ErrorKind::Other, e))
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.into_async_read();
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let mut decoder = GzipDecoder::new(BufReader::new(reader));
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let mut data = String::new();
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decoder.read_to_string(&mut data).await?;
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Ok(serde_json::from_str(&data)?)
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}
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pub fn is_offline(&self) -> bool {
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self.offline
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}
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pub fn process_fetched_listings(&mut self, listings: Vec<rainy::V1Package>, game: Game) {
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for listing in listings {
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// This is None if the package has no versions for whatever reason
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if let Some(r) = Package::from_rainy(listing) {
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let mut meta_entry = self.meta_list.remove(&r.key()).unwrap_or_else(|| {
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PackageListEntry {
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// from_rainy() is guaranteed to include rmt
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version: r.rmt.as_ref().unwrap().version.clone(),
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games: vec![ game ],
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}
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});
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if !meta_entry.games.contains(&game) {
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meta_entry.games.push(game);
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}
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self.meta_list.insert(r.key(), meta_entry);
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match self.store.get_mut(&r.key()) {
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Some(l) => {
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l.rmt = r.rmt;
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}
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None => {
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self.store.insert(r.key(), r);
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}
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}
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}
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}
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self.offline = false;
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}
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pub async fn install_package(&mut self, key: &PkgKey, force: bool, install_deps: bool) -> Result<InstallResult> {
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log::info!("installation request: {}/{}/{}", key, force, install_deps);
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let pkg = self.store.get(key)
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.ok_or_else(|| anyhow!("Attempted to install a nonexistent pkg"))?
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.clone();
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if pkg.loc.is_some() && !force {
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log::debug!("installation skipped");
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return Ok(InstallResult::Ready);
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}
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self.app.emit("install-start", Payload {
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pkg: key.to_owned()
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})?;
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let rmt = pkg.rmt.as_ref()
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.ok_or_else(|| anyhow!("Attempted to install a pkg without remote data"))?;
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if install_deps {
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let mut set = HashSet::new();
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self.resolve_deps(rmt.clone(), &mut set)?;
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for dep in set {
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Box::pin(self.install_package(&dep, false, false)).await?;
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}
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}
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let zip_path = util::cache_dir().join(format!(
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"{}-{}-{}.zip",
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pkg.namespace, pkg.name, rmt.version
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));
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let part_path = zip_path.join(".part");
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if !zip_path.exists() && !part_path.exists() {
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self.dlh.download_zip(&zip_path, &pkg)?;
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log::debug!("deferring {}", key);
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return Ok(InstallResult::Deferred);
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}
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let cache_file_r = std::fs::File::open(&zip_path)?;
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let mut archive = zip::ZipArchive::new(cache_file_r)?;
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self.delete_package(key, false).await?;
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let path = pkg.path();
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fs::create_dir(&path).await?;
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archive.extract(path)?;
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self.reload_package(key.to_owned()).await;
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self.app.emit("install-end-prelude", Payload {
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pkg: key.to_owned()
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})?;
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log::info!("installed {}", key);
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Ok(InstallResult::Ready)
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}
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pub async fn delete_package(&mut self, key: &PkgKey, force: bool) -> Result<()> {
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log::debug!("will delete {} {}", key, force);
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let pkg = self.store.get_mut(key)
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.ok_or_else(|| anyhow!("Attempted to delete a nonexistent pkg"))?;
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let path = pkg.path();
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if path.exists() && path.join("manifest.json").exists() {
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pkg.loc = None;
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let rv = util::remove_dir_all(&path).await;
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if rv.is_ok() {
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self.app.emit("install-end-prelude", Payload {
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pkg: key.to_owned()
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})?;
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log::info!("deleted {}", key);
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}
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rv
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} else {
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if force {
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Err(anyhow!("Nothing to delete"))
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} else {
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Ok(())
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}
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}
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}
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fn update_nonremote(&mut self, key: PkgKey, mut new: Package) {
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if let Some(old) = self.store.remove(&key) {
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new.rmt = old.rmt;
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}
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self.store.insert(key, new);
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}
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fn resolve_deps(&self, rmt: Remote, set: &mut HashSet<PkgKey>) -> Result<()> {
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for d in rmt.dependencies {
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set.insert(d.clone());
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let subrmt = self.store.get(&d)
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.ok_or_else(|| anyhow!("Attempted to delete a nonexistent pkg"))?
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.rmt
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.clone()
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.ok_or_else(|| anyhow!("Attempted to resolve deps without fetching"))?;
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self.resolve_deps(subrmt, set)?;
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}
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Ok(())
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}
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}
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