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Fix compile family detection: Use C macros instead of
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| #ifdef __clang__ | ||
| #pragma message "clang" | ||
| #endif | ||
|
|
||
| #ifdef __GNUC__ | ||
| #pragma message "gcc" | ||
| #endif | ||
|
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||
| #ifdef _MSC_VER | ||
| #pragma message "msvc" | ||
| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| use std::{ | ||
| collections::hash_map::RandomState, | ||
| fs::{remove_file, File, OpenOptions}, | ||
| hash::{BuildHasher, Hasher}, | ||
| io, os, | ||
| path::{Path, PathBuf}, | ||
| }; | ||
|
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| #[cfg(not(any(unix, target_os = "wasi", windows)))] | ||
| compile_error!("Your system is not supported since cc cannot create named tempfile"); | ||
|
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| fn rand() -> u64 { | ||
| RandomState::new().build_hasher().finish() | ||
| } | ||
|
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| fn tmpname(suffix: &str) -> String { | ||
| format!("{}{}", rand(), suffix) | ||
| } | ||
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| fn create_named(path: &Path) -> io::Result<File> { | ||
| let mut open_options = OpenOptions::new(); | ||
|
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| open_options.read(true).write(true).create_new(true); | ||
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| #[cfg(all(unix, not(target_os = "wasi")))] | ||
| <OpenOptions as os::unix::fs::OpenOptionsExt>::mode(&mut open_options, 0o600); | ||
|
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| #[cfg(windows)] | ||
| <OpenOptions as os::windows::fs::OpenOptionsExt>::custom_flags( | ||
| &mut open_options, | ||
| crate::windows::windows_sys::FILE_ATTRIBUTE_TEMPORARY, | ||
| ); | ||
|
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| open_options.open(path) | ||
| } | ||
|
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| pub(super) struct NamedTempfile { | ||
| path: PathBuf, | ||
| file: Option<File>, | ||
| } | ||
|
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| impl NamedTempfile { | ||
| pub(super) fn new(base: &Path, suffix: &str) -> io::Result<Self> { | ||
| for _ in 0..10 { | ||
| let path = base.join(tmpname(suffix)); | ||
| match create_named(&path) { | ||
| Ok(file) => { | ||
| return Ok(Self { | ||
| file: Some(file), | ||
| path, | ||
| }) | ||
| } | ||
| Err(e) if e.kind() == io::ErrorKind::AlreadyExists => continue, | ||
| Err(e) => return Err(e), | ||
| }; | ||
| } | ||
|
|
||
| Err(io::Error::new( | ||
| io::ErrorKind::AlreadyExists, | ||
| format!( | ||
| "too many temporary files exist in base `{}` with suffix `{}`", | ||
| base.display(), | ||
| suffix | ||
| ), | ||
| )) | ||
| } | ||
|
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| pub(super) fn path(&self) -> &Path { | ||
| &self.path | ||
| } | ||
|
|
||
| pub(super) fn file(&self) -> &File { | ||
| self.file.as_ref().unwrap() | ||
| } | ||
| } | ||
|
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||
| impl Drop for NamedTempfile { | ||
| fn drop(&mut self) { | ||
| // On Windows you have to close all handle to it before | ||
| // removing the file. | ||
| self.file.take(); | ||
| let _ = remove_file(&self.path); | ||
| } | ||
| } |
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