Charlie Marsh
52 lines
1.5 KiB
Rust
52 lines
1.5 KiB
Rust
use std::io;
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use std::path::PathBuf;
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use clap::Parser;
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use directories::ProjectDirs;
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use crate::Cache;
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#[derive(Parser, Debug, Clone)]
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pub struct CacheArgs {
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/// Avoid reading from or writing to the cache.
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#[arg(
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global = true,
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long,
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short,
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alias = "no-cache-dir",
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env = "UV_NO_CACHE"
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)]
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no_cache: bool,
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/// Path to the cache directory.
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///
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/// Defaults to `$HOME/Library/Caches/uv` on macOS, `$XDG_CACHE_HOME/uv` or `$HOME/.cache/uv` on
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/// Linux, and `$HOME/.cache/<project_path> {FOLDERID_LocalAppData}/<project_path>/cache/uv`
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/// on Windows.
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#[arg(global = true, long, env = "UV_CACHE_DIR")]
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cache_dir: Option<PathBuf>,
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}
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impl TryFrom<CacheArgs> for Cache {
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type Error = io::Error;
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/// Prefer, in order:
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/// 1. A temporary cache directory, if the user requested `--no-cache`.
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/// 2. The specific cache directory specified by the user via `--cache-dir` or `UV_CACHE_DIR`.
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/// 3. The system-appropriate cache directory.
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/// 4. A `.uv_cache` directory in the current working directory.
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///
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/// Returns an absolute cache dir.
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fn try_from(value: CacheArgs) -> Result<Self, Self::Error> {
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if value.no_cache {
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Self::temp()
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} else if let Some(cache_dir) = value.cache_dir {
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Self::from_path(cache_dir)
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} else if let Some(project_dirs) = ProjectDirs::from("", "", "uv") {
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Self::from_path(project_dirs.cache_dir())
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} else {
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Self::from_path(".uv_cache")
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}
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}
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}
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