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Make roc_cache_dir() panic if it can't find $HOME

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Richard Feldman 2022-11-20 20:48:09 -05:00
parent 4987fe1656
commit 7d2fa63dca
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7 changed files with 31 additions and 61 deletions
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32
crates/packaging/src/cache.rs
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@ -107,30 +107,38 @@ const ROC_VERSION: &str = include_str!("../../../version.txt");
///
/// Returns None if XDG_CACHE_HOME is not set, and also we can't determine the home directory
/// (or if %APPDATA% is missing on Windows) on this system.
pub fn roc_cache_dir() -> Option<PathBuf> {
pub fn roc_cache_dir() -> PathBuf {
// Respect XDG, if the system appears to be using it.
// https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html
match env::var_os("XDG_CACHE_HOME") {
Some(xdg_cache_home) => Some(
Path::new(&xdg_cache_home)
.join(ROC_CACHE_DIR_NAME)
.join(ROC_VERSION),
),
Some(xdg_cache_home) => Path::new(&xdg_cache_home)
.join(ROC_CACHE_DIR_NAME)
.join(ROC_VERSION),
None => {
#[cfg(windows)]
{
// e.g. %APPDATA%\\Roc
Some(Path::new(&env::var_os("APPDATA")?).join(ROC_CACHE_DIR_NAME))
if let Some(appdata) =
// CSIDL_APPDATA is the same as APPDATA, according to:
// https://learn.microsoft.com/en-us/windows/deployment/usmt/usmt-recognized-environment-variables
env::var_os("APPDATA").or_else(|| env::var_os("CSIDL_APPDATA"))
{
Path::new(&appdata).join(ROC_CACHE_DIR_NAME)
} else {
eprintln!("roc needs either the %APPDATA% or else the %XDG_CACHE_HOME% environment variables set. Please set one of these environment variables and re-run roc!");
std::process::exit(1);
}
}
#[cfg(unix)]
{
// e.g. $HOME/.cache/roc
Some(
Path::new(&env::var_os("HOME")?)
.join(".cache")
.join(ROC_CACHE_DIR_NAME),
)
if let Some(home) = env::var_os("HOME") {
Path::new(&home).join(".cache").join(ROC_CACHE_DIR_NAME)
} else {
eprintln!("roc needs either the $HOME or else the $XDG_CACHE_HOME environment variables set. Please set one of these environment variables and re-run roc!");
std::process::exit(1);
}
}
}
}