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rewrite small part of the input argument handling

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the commit rewrite a small part of the input argument handling, trying
to follow besr rust practices.
We get rid of a variable and of a mutable reference while keeping the
code a bit more coincise.
pull/318/head
Simone Mosciatti 2 years ago committed by Sunshine
parent 89ce5029b9
commit db7ee697b3
1 changed files with 43 additions and 47 deletions
Show Stats Download Patch File Download Diff File

90
src/main.rs
Unescape Escape View File

@ -65,10 +65,9 @@ pub fn read_stdin() -> Vec<u8> {
fn main() { fn main() {
let options = Options::from_args(); let options = Options::from_args();
let mut target: String = options.target.clone();
// Check if target was provided // Check if target was provided
if target.len() == 0 { if options.target.len() == 0 {
if !options.silent { if !options.silent {
eprintln!("No target specified"); eprintln!("No target specified");
} }
@ -83,65 +82,62 @@ fn main() {
} }
} }
let target_url: Url;
let mut use_stdin: bool = false; let mut use_stdin: bool = false;
// Determine exact target URL let target_url = match options.target.as_str() {
if target.clone() == "-" { "-" => {
// Read from pipe (stdin) // Read from pipe (stdin)
use_stdin = true; use_stdin = true;
// Set default target URL to an empty data URL; the user can set it via --base-url // Set default target URL to an empty data URL; the user can set it via --base-url
target_url = Url::parse("data:text/html,").unwrap(); Url::parse("data:text/html,").unwrap()
} else { }
match Url::parse(&target.clone()) { target => match Url::parse(&target) {
Ok(parsed_url) => { Ok(url) => match url.scheme() {
if parsed_url.scheme() == "data" "data" | "file" | "http" | "https" => url,
|| parsed_url.scheme() == "file" unsupported_scheme => {
|| (parsed_url.scheme() == "http" || parsed_url.scheme() == "https")
{
target_url = parsed_url;
} else {
if !options.silent { if !options.silent {
eprintln!("Unsupported target URL type: {}", &parsed_url.scheme()); eprintln!("Unsupported target URL type: {}", unsupported_scheme);
} }
process::exit(1); process::exit(1)
} }
} },
Err(_err) => { Err(_) => {
// Failed to parse given base URL (perhaps it's a filesystem path?) // Failed to parse given base URL (perhaps it's a filesystem path?)
let path: &Path = Path::new(&target); let path: &Path = Path::new(&target);
match path.exists() {
if path.exists() { true => match path.is_file() {
if path.is_file() { true => {
match Url::from_file_path(fs::canonicalize(&path).unwrap()) { let canonical_path = fs::canonicalize(&path).unwrap();
Ok(file_url) => { match Url::from_file_path(canonical_path) {
target_url = file_url; Ok(url) => url,
} Err(_) => {
Err(_err) => { if !options.silent {
if !options.silent { eprintln!(
eprintln!( "Could not generate file URL out of given path: {}",
"Could not generate file URL out of given path: {}", &target
"err" );
); }
process::exit(1);
} }
process::exit(1);
} }
} }
} else { false => {
if !options.silent { if !options.silent {
eprintln!("Local target is not a file: {}", &options.target); eprintln!("Local target is not a file: {}", &target);
}
process::exit(1);
} }
process::exit(1); },
false => {
// It is not a FS path, now we do what browsers do:
// prepend "http://" and hope it points to a website
Url::parse(&format!("https://{hopefully_url}", hopefully_url = &target))
.unwrap()
} }
} else {
// Last chance, now we do what browsers do:
// prepend "http://" and hope it points to a website
target.insert_str(0, "http://");
target_url = Url::parse(&target).unwrap();
} }
} }
} },
} };
// Initialize client // Initialize client
let mut cache = HashMap::new(); let mut cache = HashMap::new();

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