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vectorcraft/apps/vectorcraft-cli/src/main.rs

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//! `vectorcraft-cli`: VectorCraft from the command line.
//!
//! ```text
//! vectorcraft-cli mcp [--connect 127.0.0.1:7979 | --headless]
//! vectorcraft-cli run [--in FILE] [--cmd id [--params '{json}']]... [--export out.svg]... [--scale 2]
//! vectorcraft-cli commands
//! vectorcraft-cli convert IN OUT [--scale 2] [--artboard 0 | --range 1-3,5] [--outline-text]
//! vectorcraft-cli info FILE
//! vectorcraft-cli bench FILE [--size 2880x1800] [--iters 5]
//! vectorcraft-cli perf [--paths 50000]
//! ```
#![forbid(unsafe_code)]
use std::io::Write;
use std::process::ExitCode;
/// `println!` / `print!` that end the program quietly when stdout is closed
/// (`vectorcraft-cli commands | head`) instead of panicking with "failed printing to stdout:
/// Broken pipe (os error 32)".
macro_rules! outln {
($($arg:tt)*) => {{
use std::io::Write as _;
if let Err(e) = writeln!(std::io::stdout(), $($arg)*) {
$crate::stdout_failed(e);
}
}};
}
macro_rules! out {
($($arg:tt)*) => {{
use std::io::Write as _;
if let Err(e) = write!(std::io::stdout(), $($arg)*) {
$crate::stdout_failed(e);
}
}};
}
mod perf;
use serde_json::{Value, json};
use vectorcraft_mcp::{Backend, DEFAULT_ADDR, Headless, Remote, Server};
/// stdout went away. A reader that stopped early (a closed pipe) ends the program quietly, as
/// ripgrep does; any other write error is reported.
fn stdout_failed(e: std::io::Error) -> ! {
if e.kind() == std::io::ErrorKind::BrokenPipe {
std::process::exit(0);
}
eprintln!("vectorcraft-cli: can't write to stdout: {e}");
std::process::exit(1);
}
const USAGE: &str = "\
vectorcraft-cli — VectorCraft automation
USAGE:
vectorcraft-cli mcp [--connect ADDR | --headless]
Run the MCP server on stdio. Default: connect to a running app at 127.0.0.1:7979
(vectorcraft --control 7979), falling back to a headless in-process session.
vectorcraft-cli run [--in FILE] [--cmd ID [--params JSON]]... [--export FILE]... [--scale N]
Headless batch: open FILE (any readable format) or start a new document, run commands in
order, export each FILE in the format its extension picks (see Writable formats). Prints one
JSON result per step.
vectorcraft-cli commands
Print the command catalogue as JSON.
vectorcraft-cli convert IN OUT [--scale N] [--artboard I | --range R] [--outline-text]
Open IN (any readable format) and export OUT in the format its extension picks (see Writable
formats). --artboard is 0-based, --range 1-based (\"1-3,5\"); a PDF gets every artboard
unless one of them is given, EPS the bounds of the art, the other formats the first artboard.
Live effects are kept; --outline-text writes SVG text as paths.
vectorcraft-cli info FILE
Print a JSON summary: title, colour mode, units, artboards, object counts by kind, fonts.
vectorcraft-cli bench FILE [--size WxH] [--iters N]
Render FILE (any readable format) fitted to WxH (default 2880x1800) and print ms per frame
(warm), multithreaded and single-threaded.
vectorcraft-cli perf [--paths N]
Check the performance budgets (render, pan, hit test, save/load, SVG, Pathfinder) on a
synthetic N-path document (default 50000). Exits non-zero if a budget is exceeded.
";
/// The usage text plus the formats `document.open` reads and `document.export` writes.
fn usage() -> String {
use vectorcraft_engine::cmd::fileio::{OPEN_EXTS, export_extensions};
format!("{USAGE}\nReadable formats: .{}\nWritable formats: .{}\n", OPEN_EXTS.join(", ."), export_extensions().join(", ."))
}
fn main() -> ExitCode {
let args: Vec<String> = std::env::args().skip(1).collect();
let r = match args.first().map(String::as_str) {
Some("mcp") => mcp(&args[1..]),
Some("run") => run(&args[1..]),
Some("commands") => commands(),
Some("convert") => convert(&args[1..]),
Some("info") => info(&args[1..]),
Some("bench") => bench(&args[1..]),
Some("perf") => perf::run(&args[1..]),
Some("-h" | "--help" | "help") | None => {
out!("{}", usage());
Ok(())
}
Some("-V" | "--version") => {
outln!("vectorcraft-cli {}", env!("CARGO_PKG_VERSION"));
Ok(())
}
Some(other) => Err(format!("unknown subcommand `{other}`\n\n{}", usage())),
};
match r {
Ok(()) => ExitCode::SUCCESS,
Err(e) => {
eprintln!("vectorcraft-cli: {e}");
ExitCode::FAILURE
}
}
}
fn mcp(args: &[String]) -> Result<(), String> {
let mut connect: Option<String> = None;
let mut headless = false;
let mut it = args.iter();
while let Some(a) = it.next() {
match a.as_str() {
"--connect" => connect = Some(it.next().cloned().ok_or("--connect needs an address")?),
"--headless" => headless = true,
other => return Err(format!("unknown mcp option `{other}`")),
}
}
if headless && connect.is_some() {
return Err("use either --connect or --headless".into());
}
let backend: Box<dyn Backend> = if headless {
Box::new(Headless::with_document())
} else if let Some(addr) = connect {
// Explicit address: fail loudly if the app isn't there.
Box::new(Remote::connect(&addr).map_err(|e| format!("cannot connect to {addr}: {e}"))?)
} else {
match Remote::connect(DEFAULT_ADDR) {
Ok(r) => Box::new(r),
Err(_) => Box::new(Headless::with_document()),
}
};
eprintln!("vectorcraft-cli: MCP server on stdio ({})", backend.describe());
// The binary owns the logger, not the library: installing one here keeps an embedder that
// uses `vectorcraft_mcp` free to bring its own. Silent until a client sends logging/setLevel.
vectorcraft_mcp::logging::install();
let stdin = std::io::stdin();
let stdout = std::io::stdout();
Server::new(backend).serve(stdin.lock(), stdout.lock()).map_err(|e| e.to_string())
}
fn commands() -> Result<(), String> {
let mut h = Headless::new();
let v = h.call("engine.commands", json!({}))?;
outln!("{}", serde_json::to_string_pretty(&v).unwrap_or_default());
Ok(())
}
fn convert(args: &[String]) -> Result<(), String> {
let mut files = vec![];
let (mut scale, mut artboard, mut range, mut outline_text) = (1.0f64, None::<u64>, None::<String>, false);
let mut it = args.iter();
while let Some(a) = it.next() {
match a.as_str() {
"--scale" | "-s" => scale = it.next().and_then(|v| v.parse().ok()).ok_or("--scale needs a number")?,
"--artboard" | "-a" => artboard = Some(it.next().and_then(|v| v.parse().ok()).ok_or("--artboard needs an index")?),
"--range" | "-r" => range = Some(it.next().cloned().ok_or("--range needs artboards such as 1-3,5")?),
"--outline-text" => outline_text = true,
f => files.push(f.to_string()),
}
}
let [input, output] = <[String; 2]>::try_from(files).map_err(|_| "convert needs IN and OUT")?;
let mut h = Headless::new();
h.call("app.open", json!({"path": input})).map_err(|e| format!("open {input}: {e}"))?;
let r = h
.call(
"engine.execute",
json!({"command": "document.export", "params": {"path": output, "scale": scale, "artboard": artboard, "range": range, "outlineText": outline_text}}),
)
.map_err(|e| format!("export {output}: {e}"))?;
outln!("{r}");
Ok(())
}
fn info(args: &[String]) -> Result<(), String> {
let file = args.first().ok_or("info needs a FILE")?;
let mut h = Headless::new();
h.call("app.open", json!({"path": file})).map_err(|e| format!("open {file}: {e}"))?;
let base = h.call("engine.execute", json!({"command": "file.info", "params": {}}))?;
let doc = h.session.doc().map_err(|e| e.to_string())?.doc.clone();
let mut kinds: std::collections::BTreeMap<&'static str, usize> = Default::default();
doc.walk(|n| *kinds.entry(n.kind_label()).or_default() += 1);
let fonts = h.call("engine.execute", json!({"command": "text.fonts", "params": {}})).unwrap_or(Value::Null);
let artboards: Vec<Value> =
doc.artboards.iter().map(|a| json!({"name": a.name, "rect": [a.rect.x0, a.rect.y0, a.rect.width(), a.rect.height()]})).collect();
let v = json!({"file": file, "info": base, "artboards": artboards, "kinds": kinds, "fonts": fonts});
outln!("{}", serde_json::to_string_pretty(&v).unwrap_or_default());
Ok(())
}
enum Step {
Cmd(String, Value),
Export(String),
}
fn run(args: &[String]) -> Result<(), String> {
let mut input: Option<String> = None;
let mut steps: Vec<Step> = vec![];
let mut scale = 1.0;
let mut it = args.iter();
while let Some(a) = it.next() {
let mut val = |what: &str| it.next().cloned().ok_or_else(|| format!("{a} needs {what}"));
match a.as_str() {
"--in" | "-i" => input = Some(val("a file")?),
"--cmd" | "-c" => steps.push(Step::Cmd(val("a command id")?, json!({}))),
"--params" | "-p" => {
let raw = val("JSON")?;
let p: Value = serde_json::from_str(&raw).map_err(|e| format!("--params {raw}: {e}"))?;
if !p.is_object() {
return Err(format!("--params must be a JSON object, got {raw}"));
}
match steps.last_mut() {
Some(Step::Cmd(_, params)) => *params = p,
_ => return Err("--params must follow a --cmd".into()),
}
}
"--export" | "-o" => steps.push(Step::Export(val("a file")?)),
"--scale" | "-s" => {
let raw = val("a number")?;
scale = raw.parse::<f64>().map_err(|_| format!("--scale {raw}: not a number"))?;
}
other => return Err(format!("unknown run option `{other}`")),
}
}
let mut h = Headless::new();
let mut out = std::io::stdout().lock();
let mut emit = |v: Value| writeln!(out, "{v}").map_err(|e| e.to_string());
if let Some(path) = &input {
let r = h.call("app.open", json!({"path": path})).map_err(|e| format!("open {path}: {e}"))?;
emit(json!({"step": "open", "path": path, "result": r}))?;
} else if !matches!(steps.first(), Some(Step::Cmd(id, _)) if id == "file.new") {
h.ensure_document();
}
for step in steps {
match step {
Step::Cmd(id, params) => {
let r = h.call("engine.execute", json!({"command": id, "params": params})).map_err(|e| format!("{id}: {e}"))?;
emit(json!({"step": "cmd", "command": id, "result": r}))?;
}
Step::Export(path) => {
let r = h.call("app.export", json!({"path": path, "scale": scale})).map_err(|e| format!("export {path}: {e}"))?;
emit(json!({"step": "export", "result": r}))?;
}
}
}
Ok(())
}
fn bench(args: &[String]) -> Result<(), String> {
let mut file = None;
let (mut w, mut h, mut iters) = (2880u32, 1800u32, 5u32);
let mut it = args.iter();
while let Some(a) = it.next() {
match a.as_str() {
"--size" => {
let v = it.next().ok_or("--size needs WxH")?;
let (a, b) = v.split_once('x').ok_or("--size needs WxH")?;
w = a.parse().map_err(|_| "bad width")?;
h = b.parse().map_err(|_| "bad height")?;
}
"--iters" => iters = it.next().and_then(|v| v.parse().ok()).ok_or("--iters needs a number")?,
f if file.is_none() => file = Some(f.to_string()),
other => return Err(format!("unknown bench option `{other}`")),
}
}
let file = file.ok_or("bench needs a FILE")?;
let mut hl = Headless::new();
hl.call("app.open", json!({ "path": file })).map_err(|e| format!("open {file}: {e}"))?;
let doc = hl.session.doc().map_err(|e| e.to_string())?.doc.clone();
let b = doc.artboards.first().map(|a| a.rect).ok_or("document has no artboard")?;
let z = (w as f64 / b.width()).min(h as f64 / b.height()) * 0.95;
let view = vectorcraft_geom::Affine::translate((w as f64 / 2.0, h as f64 / 2.0))
* vectorcraft_geom::Affine::scale(z)
* vectorcraft_geom::Affine::translate(-b.center().to_vec2());
let opts = vectorcraft_render::RenderOptions::default();
outln!("{file}: {} nodes, {w}x{h}", doc.layers.iter().map(|l| l.count()).sum::<usize>());
for threads in [vectorcraft_render::default_threads(), 0] {
let mut r = vectorcraft_render::Renderer::new();
r.threads = threads;
r.render(&doc, w, h, view, &opts);
let t = std::time::Instant::now();
for _ in 0..iters {
r.render(&doc, w, h, view, &opts);
}
outln!(
" threads {threads}: {:.1} ms/frame (drawn {}, culled {})",
t.elapsed().as_secs_f64() * 1000.0 / iters as f64,
r.stats.drawn,
r.stats.culled
);
}
Ok(())
}
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