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libstd/os: set tmp dir to /data/tmp on Android #8901

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libstd/os: set tmp dir to /data/tmp on Android #8901

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8 changes: 7 additions & 1 deletion src/libstd/os.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -584,6 +584,8 @@ pub fn homedir() -> Option<Path> {
*
* On Unix, returns the value of the 'TMPDIR' environment variable if it is
* set and non-empty and '/tmp' otherwise.
* On Android, there is no global temporary folder (it is usually allocated
* per-app), hence returns '/data/tmp' which is commonly used.
*
* On Windows, returns the value of, in order, the 'TMP', 'TEMP',
* 'USERPROFILE' environment variable if any are set and not the empty
Expand All @@ -606,7 +608,11 @@ pub fn tmpdir() -> Path {

#[cfg(unix)]
fn lookup() -> Path {
getenv_nonempty("TMPDIR").unwrap_or_default(Path("/tmp"))
if cfg!(target_os = "android") {
Path("/data/tmp")
} else {
getenv_nonempty("TMPDIR").unwrap_or_default(Path("/tmp"))
}
}

#[cfg(windows)]
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