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Use std for dir reads, impl cd, and print errors right

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This commit is contained in:
pjht 2024-10-04 12:39:41 -05:00
parent 645af427ca
commit 7eaf3b933c
Signed by: pjht
GPG Key ID: CA239FC6934E6F3A
3 changed files with 85 additions and 252 deletions
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244
Cargo.lock generated
View File

@ -1,6 +1,6 @@
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name = "dir_rpc"
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name = "heck"
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@ -197,58 +109,6 @@ version = "1.70.1"
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name = "parking_lot_core"
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@ -263,9 +123,7 @@ name = "pts_tester"
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]
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@ -277,83 +135,12 @@ dependencies = [
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@ -383,15 +170,6 @@ version = "0.2.2"
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[[patch.unused]]
name = "serde"
version = "1.0.210"
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name = "serde_derive"
version = "1.0.210"

6
Cargo.toml
View File

@ -5,6 +5,8 @@ edition = "2021"
[dependencies]
clap = { version = "4.5.18", features = ["derive"] }
dir_rpc = { version = "0.1.0", path = "../dir_rpc" }
shlex = "1.3.0"
vfs_rpc = { version = "0.1.0", path = "../vfs/vfs_rpc" }
[patch.crates-io]
serde = { path = "../serde/serde" }
serde_derive = { path = "../serde/serde_derive" }

87
src/main.rs
View File

@ -1,7 +1,6 @@
use std::{
io::{self, Write},
os::mikros::syscalls,
path::{Path, PathBuf},
path::{Component, Path, PathBuf},
};
use clap::Parser;
@ -16,17 +15,31 @@ struct Cat {
path: PathBuf,
}
fn main() {
let vfs_pid = loop {
if let Some(pid) = syscalls::try_get_registered(0) {
break pid;
}
};
let vfs_client = vfs_rpc::Client::new(vfs_pid);
#[derive(Parser, Debug)]
struct Cd {
path: PathBuf,
}
fn canonicalize_path(path: &Path) -> PathBuf {
path.components()
.fold(PathBuf::from("/"), |mut buf, component| match component {
Component::Prefix(_) => unreachable!(),
Component::RootDir | Component::Normal(_) => {
buf.push(component);
buf
}
Component::CurDir => buf,
Component::ParentDir => {
buf.pop();
buf
}
})
}
fn main() {
let mut line = String::new();
let cwd = Path::new("/").to_owned();
let mut cwd = Path::new("/").to_owned();
loop {
print!(
@ -62,17 +75,20 @@ fn main() {
let abs_path = if cmd_path.is_relative() {
let mut abs_path = cwd.clone();
abs_path.push(cmd_path.clone());
abs_path
canonicalize_path(&abs_path)
} else {
cmd_path.clone()
};
let Ok((fs_pid, dir_fd)) = vfs_client.open_dir(&abs_path) else {
println!("ls: {}: failed to open", cmd_path.display());
continue;
let dir = match std::fs::read_dir(&abs_path) {
Ok(val) => val,
Err(e) => {
println!("ls: {}: {}", cmd_path.display(), e);
continue;
}
};
let fs_client = dir_rpc::Client::new(fs_pid);
while let Some(entry) = fs_client.next_entry(dir_fd).unwrap() {
println!("{}", entry);
for entry in dir {
let entry = entry.unwrap();
println!("{}", entry.file_name().to_string_lossy());
}
}
"cat" => {
@ -86,13 +102,16 @@ fn main() {
let abs_path = if cmd.path.is_relative() {
let mut abs_path = cwd.clone();
abs_path.push(cmd.path.clone());
abs_path
canonicalize_path(&abs_path)
} else {
cmd.path.clone()
};
let Ok(contents) = std::fs::read(&abs_path) else {
println!("cat: {}: failed to read", cmd.path.display());
continue;
let contents = match std::fs::read(&abs_path) {
Ok(val) => val,
Err(e) => {
println!("cat: {}: {}", cmd.path.display(), e);
continue;
}
};
io::stdout().lock().write_all(&contents).unwrap();
if let Some(&last_byte) = contents.last() {
@ -101,6 +120,32 @@ fn main() {
}
}
}
"cd" => {
let cmd = match Cd::try_parse_from(&cmd) {
Ok(cmd) => cmd,
Err(err) => {
err.print().unwrap();
continue;
}
};
let abs_path = if cmd.path.is_relative() {
let mut abs_path = cwd.clone();
abs_path.push(cmd.path.clone());
canonicalize_path(&abs_path)
} else {
cmd.path.clone()
};
// Try to open the given directory, if it fails it's not a valid directory.
// Use Metadata instead once it's implemented.
match std::fs::read_dir(&abs_path) {
Ok(_) => (),
Err(e) => {
println!("cd: {}: {}", cmd.path.display(), e);
continue;
}
};
cwd = abs_path;
}
"exit" => {
break;
}