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object orientated

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George 2023-10-28 16:51:23 -04:00
parent ade02bfe22
commit 82474262b8
2 changed files with 71 additions and 53 deletions
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prebuilt-x86-64-linux/find-images
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src/main.rs
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@ -26,7 +26,7 @@ struct CLIArguments {
quote: bool,
#[structopt(short, long, value_name="EXT",
help="File extensions to filter for (default: jpg jpeg png webp gif heic tiff dpx exr svg)")]
help="File extensions to filter for (default: dpx exr gif heic jpeg jpg png svg tiff webp)")]
extensions: Vec<String>,
#[structopt(value_name="TARGET",
@ -44,78 +44,96 @@ fn main() -> Result<(), Box<dyn std::error::Error>>{
};
let valid_extensions: HashSet<&str> = if args.extensions.is_empty() {
["jpg", "jpeg", "png", "webp", "gif", "heic", "tiff", "dpx", "exr", "svg"].into_iter().collect()
["dpx", "exr", "gif", "heic", "jpeg", "jpg", "png", "svg", "tiff", "webp"].into_iter().collect()
} else {
args.extensions.iter().map(|s| s.as_str()).collect()
};
let mut registry: Vec<(std::fs::Metadata,PathBuf)> = Vec::new();
let mut registry = Registry::new(valid_extensions);
args.targets.into_iter().map(|target| Path::new(&target).to_path_buf() ).for_each(
|path| {
if path.is_file() {
if let Ok(metadata) = std::fs::metadata(&path) { // intentionally not symlink_metadata
register_file(&mut registry, path, metadata, &valid_extensions);
}
} else if path.is_dir() {
register_dir(&mut registry, path, &valid_extensions, args.dohidden);
}
}
);
registry.populate(args.targets.into_iter().map(|target| Path::new(&target).to_path_buf() ), args.dohidden);
if !args.no_sort {
registry.sort_by_key(|(meta,_)| {
registry.sort_by_modified();
}
let stdout = std::io::stdout();
let mut stdout_buffer = std::io::BufWriter::new(stdout.lock());
registry.write_all(&mut stdout_buffer, args.null, args.quote)?;
Ok(())
}
struct Registry<'a> {
registry: Vec<(std::fs::Metadata,PathBuf)>,
valid_extensions: HashSet<&'a str>
}
impl<'a> Registry<'a> {
pub fn new(valid_extensions: HashSet<&'a str>) -> Self {
Self { registry: Vec::new(), valid_extensions }
}
pub fn write_all(&self, writer: &mut impl Write, separator_null: bool, quote: bool) -> std::io::Result<()> {
if separator_null {
if quote { for (_,file) in &self.registry { write!(writer, "{}\0", shlex::quote(&file.to_string_lossy()))?; } }
else { for (_,file) in &self.registry { write!(writer, "{}\0", &file.to_string_lossy() )?; } }
} else {
if quote { for (_,file) in &self.registry { writeln!(writer, "{}", shlex::quote(&file.to_string_lossy()))?; } }
else { for (_,file) in &self.registry { writeln!(writer, "{}", &file.to_string_lossy() )?; } }
}
Ok(())
}
pub fn sort_by_modified(&mut self) {
self.registry.sort_by_key(|(meta,_)| {
meta.modified().ok().unwrap_or_else(
|| std::time::SystemTime::UNIX_EPOCH,
)
});
}
let stdout = std::io::stdout();
let mut stdout_buffer = std::io::BufWriter::new(stdout.lock());
if args.null {
if args.quote { for (_,file) in registry { write!(stdout_buffer, "{}\0", shlex::quote(&file.to_string_lossy()))?; } }
else { for (_,file) in registry { write!(stdout_buffer, "{}\0", &file.to_string_lossy() )?; } }
} else {
if args.quote { for (_,file) in registry { writeln!(stdout_buffer, "{}", shlex::quote(&file.to_string_lossy()))?; } }
else { for (_,file) in registry { writeln!(stdout_buffer, "{}", &file.to_string_lossy() )?; } }
}
Ok(())
}
fn register_file(registry: &mut Vec<(std::fs::Metadata,PathBuf)>, path: PathBuf, metadata: std::fs::Metadata, valid_extensions: &HashSet<&str>) {
if let Some(osstr_ext) = path.extension() {
match osstr_ext.to_str() {
Some(ext) => {
if valid_extensions.contains(ext) {
registry.push((metadata,path));
pub fn populate(&mut self, source_paths: impl Iterator<Item=PathBuf>, dohidden: bool) {
for path in source_paths {
if path.is_file() {
if let Ok(metadata) = std::fs::metadata(&path) { // intentionally not symlink_metadata
self.add_file(path, metadata);
}
},
None => eprintln!(
"Cannot read non-utf-8 file extension: {} on {}",
shlex::quote(&osstr_ext.to_string_lossy()),
shlex::quote(&path.to_string_lossy())
)
} else if path.is_dir() {
self.add_dir(path, dohidden);
}
}
}
}
fn register_dir(registry: &mut Vec<(std::fs::Metadata,PathBuf)>, path: PathBuf, valid_extensions: &HashSet<&str>, dohidden: bool) {
if let Ok(entries) = std::fs::read_dir(path) {
for path in entries.filter_map(|e| e.ok() ).map(|e| e.path() ) {
if !dohidden && path.file_name().map(|name| name.to_string_lossy().starts_with('.')).unwrap_or(true) { // this unwraps to None if the file_name is .. or is root / (neither of which would happen in this scenario)
continue
fn add_file(&mut self, path: PathBuf, metadata: std::fs::Metadata) {
if let Some(osstr_ext) = path.extension() {
match osstr_ext.to_str() {
Some(ext) => if self.valid_extensions.contains(ext) {
self.registry.push((metadata,path));
},
None => eprintln!(
"Cannot read non-utf-8 file extension: {} on {}",
shlex::quote(&osstr_ext.to_string_lossy()),
shlex::quote(&path.to_string_lossy())
)
}
if let Ok(metadata) = std::fs::symlink_metadata(&path) {
if metadata.file_type().is_symlink() {
}
}
fn add_dir(&mut self, path: PathBuf, dohidden: bool) {
if let Ok(entries) = std::fs::read_dir(path) {
for path in entries.filter_map(|e| e.ok() ).map(|e| e.path() ) {
if !dohidden && path.file_name().map(|name| name.to_string_lossy().starts_with('.')).unwrap_or(true) { // this unwraps to None if the file_name is .. or is root / (neither of which would happen in this scenario)
continue
}
if path.is_file() {
register_file(registry, path, metadata, &valid_extensions)
} else if path.is_dir() {
register_dir(registry, path, &valid_extensions, dohidden);
if let Ok(metadata) = std::fs::symlink_metadata(&path) {
if metadata.file_type().is_symlink() {
continue
}
if path.is_file() {
self.add_file(path, metadata)
} else if path.is_dir() {
self.add_dir(path, dohidden);
}
}
}
}