holey-bytes/xtask/src/main.rs
2024-10-12 15:04:58 +02:00

141 lines
4 KiB
Rust

mod utils;
use {
crate::utils::IterExt,
std::{
fs::File,
io::{self, BufRead, BufReader, BufWriter, Seek, Write},
path::Path,
},
};
fn root() -> &'static Path {
Path::new(env!("CARGO_MANIFEST_DIR")).parent().unwrap()
}
fn build_cmd(cmd: impl AsRef<str>) -> std::process::Command {
let mut args = cmd.as_ref().split_whitespace();
let mut c = std::process::Command::new(args.next().unwrap());
for arg in args {
c.arg(arg);
}
c
}
fn exec(mut cmd: std::process::Command) -> io::Result<()> {
if !cmd.status()?.success() {
return Err(io::Error::other(format!("command failed: {:?}", cmd)));
}
Ok(())
}
fn build_wasm_blob(name: &str, debug: bool) -> io::Result<()> {
let mut c = build_cmd(if debug { "cargo wasm-build-debug" } else { "cargo wasm-build" });
c.arg(format!("wasm-{name}"));
exec(c)?;
let profile = if debug { "small-dev" } else { "small" };
let out_path = format!("target/wasm32-unknown-unknown/{profile}/wasm_{name}.wasm");
if !debug {
exec(build_cmd(format!("wasm-opt -Oz {out_path} -o {out_path}")))?;
}
exec(build_cmd(format!("cp {out_path} depell/src/{name}.wasm")))?;
exec(build_cmd(format!("gzip -f depell/src/{name}.wasm")))?;
Ok(())
}
fn main() -> io::Result<()> {
let args = std::env::args().skip(1).collect::<Vec<_>>();
match args[0].as_str() {
"fmt" => fmt(args[1] == "-r" || args[1] == "--renumber"),
"build-depell-debug" => {
build_wasm_blob("hbfmt", true)?;
build_wasm_blob("hbc", true)?;
exec(build_cmd("gzip -k -f depell/src/index.js"))?;
exec(build_cmd("gzip -k -f depell/src/index.css"))?;
exec(build_cmd("cargo run -p depell --features gzip"))?;
Ok(())
}
"build-depell" => {
build_wasm_blob("hbfmt", false)?;
build_wasm_blob("hbc", false)?;
exec(build_cmd("gzip -k -f depell/src/index.js"))?;
exec(build_cmd("gzip -k -f depell/src/index.css"))?;
exec(build_cmd("cargo run -p depell --features gzip --release"))?;
Ok(())
}
_ => Ok(()),
}
}
pub fn fmt(renumber: bool) -> io::Result<()> {
let mut file = File::options()
.read(true)
.write(true)
.open(crate::root().join("bytecode/instructions.in"))?;
// Extract records
let reader = BufReader::new(&file);
let mut recs = vec![];
let mut lens = [0_usize; 4];
for rec in reader.split(b';').filter_map(|r| {
r.map(|ln| {
let s = String::from_utf8_lossy(&ln);
let s = s.trim_matches('\n');
if s.is_empty() {
return None;
}
s.split(',').map(|s| Box::<str>::from(s.trim())).collect_array::<4>().map(Ok::<_, ()>)
})
.transpose()
}) {
let rec = rec?.expect("Valid record format");
for (current, next) in lens.iter_mut().zip(rec.iter()) {
*current = (*current).max(next.len());
}
recs.push(rec);
}
// Clear file!
file.set_len(0)?;
file.seek(std::io::SeekFrom::Start(0))?;
let mut writer = BufWriter::new(file);
let ord_opco_len = digit_count(recs.len()) as usize;
for (n, rec) in recs.iter().enumerate() {
// Write opcode number
if renumber {
let n = format!("{n:#04X}");
write!(writer, "{n}, {}", padding(ord_opco_len, &n))?;
} else {
write!(writer, "{}, {}", rec[0], padding(lens[0], &rec[0]))?;
}
// Write other fields
writeln!(
writer,
"{}, {}{},{} {}{};",
rec[1],
padding(lens[1], &rec[1]),
rec[2],
padding(lens[2], &rec[2]),
rec[3],
padding(lens[3], &rec[3]),
)?;
}
Ok(())
}
fn padding(req: usize, s: &str) -> Box<str> {
" ".repeat(req.saturating_sub(s.len())).into()
}
#[inline]
fn digit_count(n: usize) -> u32 {
n.checked_ilog10().unwrap_or(0) + 1
}