treewide: migrate to multi-crate layout

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I11a2103f3530f07409177404577b90136a6a6964

crates/pakker-cli/src/cli/commands/fetch.rs

@@ -0,0 +1,51 @@
+use std::path::{Path, PathBuf};
+
+use crate::{
+  cli::FetchArgs,
+  error::Result,
+  fetch::Fetcher,
+  ipc::{IpcCoordinator, OperationGuard, OperationType},
+  model::{Config, LockFile},
+};
+
+pub async fn execute(
+  args: FetchArgs,
+  lockfile_path: &Path,
+  config_path: &Path,
+) -> Result<()> {
+  // Load expects directory path, so get parent directory
+  let lockfile_dir = lockfile_path.parent().unwrap_or_else(|| Path::new("."));
+  let config_dir = config_path.parent().unwrap_or_else(|| Path::new("."));
+
+  let lockfile = LockFile::load(lockfile_dir)?;
+  let config = Config::load(config_dir)?;
+
+  // Create IPC coordinator for this modpack
+  let working_dir = PathBuf::from(".");
+  let coordinator = IpcCoordinator::new(&working_dir)?;
+
+  // Check for conflicting operations
+  if coordinator.has_running_operation(OperationType::Fetch) {
+    // Wait for conflicting operations to complete with timeout
+    let timeout = std::time::Duration::from_secs(args.timeout.unwrap_or(300));
+    coordinator
+      .wait_for_conflicts(OperationType::Fetch, timeout)
+      .await?;
+  }
+
+  // Register this fetch operation
+  let operation_id = coordinator.register_operation(OperationType::Fetch)?;
+  let _guard = OperationGuard::new(coordinator, operation_id);
+
+  // Create fetcher with shelve option
+  let fetcher = Fetcher::new(".")
+    .with_shelve(args.shelve)
+    .with_retry(args.retry);
+
+  // Fetch all projects (progress indicators handled in fetch.rs)
+  fetcher.fetch_all(&lockfile, &config).await?;
+
+  println!("Fetch complete");
+
+  Ok(())
+}