ae80a20690
Fixes #15175.
One question I have: I see that the scene_viewer example uses the
CARGO_MANIFEST_DIR. Should that line be removed, or would that break the
tool?
1fd478277e/examples/tools/scene_viewer/main.rs (L40)
89 lines
2.4 KiB
Rust
89 lines
2.4 KiB
Rust
#[cfg(feature = "file_watcher")]
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mod file_watcher;
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#[cfg(feature = "multi_threaded")]
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mod file_asset;
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#[cfg(not(feature = "multi_threaded"))]
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mod sync_file_asset;
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use bevy_utils::tracing::{debug, error};
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#[cfg(feature = "file_watcher")]
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pub use file_watcher::*;
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use std::{
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env,
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path::{Path, PathBuf},
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};
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pub(crate) fn get_base_path() -> PathBuf {
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if let Ok(manifest_dir) = env::var("BEVY_ASSET_ROOT") {
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PathBuf::from(manifest_dir)
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} else if let Ok(manifest_dir) = env::var("CARGO_MANIFEST_DIR") {
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PathBuf::from(manifest_dir)
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} else {
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env::current_exe()
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.map(|path| path.parent().map(ToOwned::to_owned).unwrap())
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.unwrap()
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}
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}
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/// I/O implementation for the local filesystem.
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///
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/// This asset I/O is fully featured but it's not available on `android` and `wasm` targets.
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pub struct FileAssetReader {
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root_path: PathBuf,
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}
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impl FileAssetReader {
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/// Creates a new `FileAssetIo` at a path relative to the executable's directory, optionally
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/// watching for changes.
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///
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/// See `get_base_path` below.
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pub fn new<P: AsRef<Path>>(path: P) -> Self {
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let root_path = Self::get_base_path().join(path.as_ref());
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debug!(
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"Asset Server using {} as its base path.",
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root_path.display()
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);
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Self { root_path }
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}
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/// Returns the base path of the assets directory, which is normally the executable's parent
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/// directory.
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///
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/// To change this, set [`AssetPlugin.file_path`].
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pub fn get_base_path() -> PathBuf {
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get_base_path()
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}
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/// Returns the root directory where assets are loaded from.
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///
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/// See `get_base_path`.
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pub fn root_path(&self) -> &PathBuf {
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&self.root_path
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}
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}
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pub struct FileAssetWriter {
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root_path: PathBuf,
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}
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impl FileAssetWriter {
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/// Creates a new `FileAssetIo` at a path relative to the executable's directory, optionally
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/// watching for changes.
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///
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/// See `get_base_path` below.
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pub fn new<P: AsRef<Path> + std::fmt::Debug>(path: P, create_root: bool) -> Self {
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let root_path = get_base_path().join(path.as_ref());
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if create_root {
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if let Err(e) = std::fs::create_dir_all(&root_path) {
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error!(
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"Failed to create root directory {:?} for file asset writer: {:?}",
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root_path, e
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);
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}
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}
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Self { root_path }
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}
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}
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