utilities/fd
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Reduce number of 'stat' syscalls from 3 to 1, see #36

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This commit is contained in:
sharkdp 2017-09-18 19:27:19 +02:00
parent d8c588d805
commit adaf4f6d73
1 changed files with 8 additions and 7 deletions
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15
src/main.rs
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@ -118,10 +118,8 @@ fn print_entry(base: &Path, entry: &PathBuf, config: &FdOptions) {
let path_str = entry.to_string_lossy();
#[cfg(target_family = "unix")]
let is_executable = |p: &std::path::PathBuf| {
p.metadata()
.ok()
.map(|f| f.permissions().mode() & 0o111 != 0)
let is_executable = |p: Option<&std::fs::Metadata>| {
p.map(|f| f.permissions().mode() & 0o111 != 0)
.unwrap_or(false)
};
@ -150,14 +148,17 @@ fn print_entry(base: &Path, entry: &PathBuf, config: &FdOptions) {
component_path.push(Path::new(comp_str.deref()));
let metadata = component_path.metadata().ok();
let is_directory = metadata.as_ref().map(|md| md.is_dir()).unwrap_or(false);
let style =
if component_path.symlink_metadata()
.map(|md| md.file_type().is_symlink())
.unwrap_or(false) {
&ls_colors.symlink
} else if component_path.is_dir() {
} else if is_directory {
&ls_colors.directory
} else if is_executable(&component_path) {
} else if is_executable(metadata.as_ref()) {
&ls_colors.executable
} else {
// Look up file name
@ -179,7 +180,7 @@ fn print_entry(base: &Path, entry: &PathBuf, config: &FdOptions) {
write!(handle, "{}", style.paint(comp_str)).ok();
if component_path.is_dir() && component_path != path_full {
if is_directory && component_path != path_full {
let sep = std::path::MAIN_SEPARATOR.to_string();
write!(handle, "{}", style.paint(sep)).ok();
}