Vendor things

third-party/vendor/filetime/src/unix/mod.rs

@@ -0,0 +1,101 @@
+use crate::FileTime;
+use libc::{time_t, timespec};
+use std::fs;
+use std::os::unix::prelude::*;
+
+cfg_if::cfg_if! {
+    if #[cfg(target_os = "linux")] {
+        mod utimes;
+        mod linux;
+        pub use self::linux::*;
+    } else if #[cfg(target_os = "android")] {
+        mod android;
+        pub use self::android::*;
+    } else if #[cfg(target_os = "macos")] {
+        mod utimes;
+        mod macos;
+        pub use self::macos::*;
+    } else if #[cfg(any(target_os = "aix",
+                        target_os = "solaris",
+                        target_os = "illumos",
+                        target_os = "emscripten",
+                        target_os = "freebsd",
+                        target_os = "netbsd",
+                        target_os = "openbsd",
+                        target_os = "haiku"))] {
+        mod utimensat;
+        pub use self::utimensat::*;
+    } else {
+        mod utimes;
+        pub use self::utimes::*;
+    }
+}
+
+#[allow(dead_code)]
+fn to_timespec(ft: &Option<FileTime>) -> timespec {
+    cfg_if::cfg_if! {
+        if #[cfg(any(target_os = "macos",
+                     target_os = "illumos",
+                     target_os = "freebsd"))] {
+            // https://github.com/apple/darwin-xnu/blob/a449c6a3b8014d9406c2ddbdc81795da24aa7443/bsd/sys/stat.h#L541
+            // https://github.com/illumos/illumos-gate/blob/master/usr/src/boot/sys/sys/stat.h#L312
+            // https://svnweb.freebsd.org/base/head/sys/sys/stat.h?view=markup#l359
+            const UTIME_OMIT: i64 = -2;
+        } else if #[cfg(target_os = "openbsd")] {
+            // https://github.com/openbsd/src/blob/master/sys/sys/stat.h#L189
+            const UTIME_OMIT: i64 = -1;
+        } else if #[cfg(target_os = "haiku")] {
+            // https://git.haiku-os.org/haiku/tree/headers/posix/sys/stat.h?#n106
+            const UTIME_OMIT: i64 = 1000000001;
+        } else if #[cfg(target_os = "aix")] {
+            // AIX hasn't disclosed system header files yet.
+            // https://github.com/golang/go/blob/master/src/cmd/vendor/golang.org/x/sys/unix/zerrors_aix_ppc64.go#L1007
+            const UTIME_OMIT: i64 = -3;
+        } else {
+            // http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/sys/stat.h?annotate=1.68.30.1
+            // https://github.com/emscripten-core/emscripten/blob/master/system/include/libc/sys/stat.h#L71
+            const UTIME_OMIT: i64 = 1_073_741_822;
+        }
+    }
+
+    let mut ts: timespec = unsafe { std::mem::zeroed() };
+    if let &Some(ft) = ft {
+        ts.tv_sec = ft.seconds() as time_t;
+        ts.tv_nsec = ft.nanoseconds() as _;
+    } else {
+        ts.tv_sec = 0;
+        ts.tv_nsec = UTIME_OMIT as _;
+    }
+
+    ts
+}
+
+pub fn from_last_modification_time(meta: &fs::Metadata) -> FileTime {
+    FileTime {
+        seconds: meta.mtime(),
+        nanos: meta.mtime_nsec() as u32,
+    }
+}
+
+pub fn from_last_access_time(meta: &fs::Metadata) -> FileTime {
+    FileTime {
+        seconds: meta.atime(),
+        nanos: meta.atime_nsec() as u32,
+    }
+}
+
+pub fn from_creation_time(meta: &fs::Metadata) -> Option<FileTime> {
+    #[cfg(target_os = "bitrig")]
+    {
+        use std::os::bitrig::fs::MetadataExt;
+        Some(FileTime {
+            seconds: meta.st_birthtime(),
+            nanos: meta.st_birthtime_nsec() as u32,
+        })
+    }
+
+    #[cfg(not(target_os = "bitrig"))]
+    {
+        meta.created().map(|i| i.into()).ok()
+    }
+}