Add workaround for macOS notify problem.
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4a797b9565
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@ -166,7 +166,7 @@ pub fn copy_files_except_ext(
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.expect("a file should have a file name...")
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)
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);
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fs::copy(
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copy(
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entry.path(),
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&to.join(
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entry
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@ -180,6 +180,62 @@ pub fn copy_files_except_ext(
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Ok(())
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}
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/// Copies a file.
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fn copy<P: AsRef<Path>, Q: AsRef<Path>>(from: P, to: Q) -> Result<()> {
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let from = from.as_ref();
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let to = to.as_ref();
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return copy_inner(from, to)
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.with_context(|| format!("failed to copy `{}` to `{}`", from.display(), to.display()));
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// This is a workaround for an issue with the macOS file watcher.
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// Rust's `std::fs::copy` function uses `fclonefileat`, which creates
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// clones on APFS. Unfortunately fs events seem to trigger on both
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// sides of the clone, and there doesn't seem to be a way to differentiate
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// which side it is.
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// https://github.com/notify-rs/notify/issues/465#issuecomment-1657261035
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// contains more information.
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//
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// This is essentially a copy of the simple copy code path in Rust's
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// standard library.
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#[cfg(target_os = "macos")]
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fn copy_inner(from: &Path, to: &Path) -> Result<()> {
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use std::fs::OpenOptions;
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use std::os::unix::fs::{OpenOptionsExt, PermissionsExt};
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let mut reader = File::open(from)?;
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let metadata = reader.metadata()?;
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if !metadata.is_file() {
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anyhow::bail!(
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"expected a file, `{}` appears to be {:?}",
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from.display(),
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metadata.file_type()
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);
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}
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let perm = metadata.permissions();
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let mut writer = OpenOptions::new()
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.mode(perm.mode())
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.write(true)
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.create(true)
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.truncate(true)
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.open(to)?;
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let writer_metadata = writer.metadata()?;
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if writer_metadata.is_file() {
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// Set the correct file permissions, in case the file already existed.
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// Don't set the permissions on already existing non-files like
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// pipes/FIFOs or device nodes.
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writer.set_permissions(perm)?;
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}
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std::io::copy(&mut reader, &mut writer)?;
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Ok(())
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}
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#[cfg(not(target_os = "macos"))]
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fn copy_inner(from: &Path, to: &Path) -> Result<()> {
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fs::copy(from, to)?;
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Ok(())
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}
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}
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pub fn get_404_output_file(input_404: &Option<String>) -> String {
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input_404
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.as_ref()
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