1 files changed, 99 insertions, 0 deletions
diff --git a/vendor/filetime/src/windows.rs b/vendor/filetime/src/windows.rs
new file mode 100644
index 000000000..932e1017f
--- /dev/null
+++ b/vendor/filetime/src/windows.rs
@@ -0,0 +1,99 @@
+use crate::FileTime;
+use std::fs::{self, File, OpenOptions};
+use std::io;
+use std::os::windows::prelude::*;
+use std::path::Path;
+use std::ptr;
+use windows_sys::Win32::Foundation::{FILETIME, HANDLE};
+use windows_sys::Win32::Storage::FileSystem::*;
+
+pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    let f = OpenOptions::new()
+        .write(true)
+        .custom_flags(FILE_FLAG_BACKUP_SEMANTICS)
+        .open(p)?;
+    set_file_handle_times(&f, Some(atime), Some(mtime))
+}
+
+pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
+    let f = OpenOptions::new()
+        .write(true)
+        .custom_flags(FILE_FLAG_BACKUP_SEMANTICS)
+        .open(p)?;
+    set_file_handle_times(&f, None, Some(mtime))
+}
+
+pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
+    let f = OpenOptions::new()
+        .write(true)
+        .custom_flags(FILE_FLAG_BACKUP_SEMANTICS)
+        .open(p)?;
+    set_file_handle_times(&f, Some(atime), None)
+}
+
+pub fn set_file_handle_times(
+    f: &File,
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+) -> io::Result<()> {
+    let atime = atime.map(to_filetime);
+    let mtime = mtime.map(to_filetime);
+    return unsafe {
+        let ret = SetFileTime(
+            f.as_raw_handle() as HANDLE,
+            ptr::null(),
+            atime
+                .as_ref()
+                .map(|p| p as *const FILETIME)
+                .unwrap_or(ptr::null()),
+            mtime
+                .as_ref()
+                .map(|p| p as *const FILETIME)
+                .unwrap_or(ptr::null()),
+        );
+        if ret != 0 {
+            Ok(())
+        } else {
+            Err(io::Error::last_os_error())
+        }
+    };
+
+    fn to_filetime(ft: FileTime) -> FILETIME {
+        let intervals = ft.seconds() * (1_000_000_000 / 100) + ((ft.nanoseconds() as i64) / 100);
+        FILETIME {
+            dwLowDateTime: intervals as u32,
+            dwHighDateTime: (intervals >> 32) as u32,
+        }
+    }
+}
+
+pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    use std::os::windows::fs::OpenOptionsExt;
+
+    let f = OpenOptions::new()
+        .write(true)
+        .custom_flags(FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS)
+        .open(p)?;
+    set_file_handle_times(&f, Some(atime), Some(mtime))
+}
+
+pub fn from_last_modification_time(meta: &fs::Metadata) -> FileTime {
+    from_intervals(meta.last_write_time())
+}
+
+pub fn from_last_access_time(meta: &fs::Metadata) -> FileTime {
+    from_intervals(meta.last_access_time())
+}
+
+pub fn from_creation_time(meta: &fs::Metadata) -> Option<FileTime> {
+    Some(from_intervals(meta.creation_time()))
+}
+
+fn from_intervals(ticks: u64) -> FileTime {
+    // Windows write times are in 100ns intervals, so do a little math to
+    // get it into the right representation.
+    FileTime {
+        seconds: (ticks / (1_000_000_000 / 100)) as i64,
+        nanos: ((ticks % (1_000_000_000 / 100)) * 100) as u32,
+    }
+}