export_structural_catalog/
export_structural_catalog.rs

1//! Export the bundled structural catalog for a schema version.
2//!
3//! Writes the catalog to stdout, or to the path given as the first argument.
4
5use std::env;
6use std::io::{self, BufWriter, Write};
7
8use ifc_schema::{write_direct_structural_catalog, write_structural_catalog, SchemaVersion};
9
10fn main() -> Result<(), Box<dyn std::error::Error>> {
11    let requested = env::args().nth(1).ok_or_else(|| {
12        io::Error::new(
13            io::ErrorKind::InvalidInput,
14            "usage: cargo run -p ifc-schema --example export_structural_catalog -- <ifc2x3|ifc4|ifc4x3> [--direct]",
15        )
16    })?;
17    let version = match requested.to_ascii_lowercase().as_str() {
18        "ifc2x3" | "ifc2x3_tc1" => SchemaVersion::Ifc2x3,
19        "ifc4" | "ifc4_add2_tc1" => SchemaVersion::Ifc4,
20        "ifc4x3" | "ifc4x3_add2" => SchemaVersion::Ifc4x3,
21        _ => {
22            return Err(io::Error::new(
23                io::ErrorKind::InvalidInput,
24                format!("unsupported bundled IFC release: {requested}"),
25            )
26            .into());
27        }
28    };
29
30    let direct = match env::args().nth(2).as_deref() {
31        None => false,
32        Some("--direct") => true,
33        Some(value) => {
34            return Err(io::Error::new(
35                io::ErrorKind::InvalidInput,
36                format!("unsupported export option: {value}"),
37            )
38            .into());
39        }
40    };
41    if env::args().nth(3).is_some() {
42        return Err(io::Error::new(io::ErrorKind::InvalidInput, "too many arguments").into());
43    }
44
45    let stdout = io::stdout();
46    let mut output = BufWriter::new(stdout.lock());
47    let summary = if direct {
48        write_direct_structural_catalog(version, &mut output)?
49    } else {
50        write_structural_catalog(version, &mut output)?
51    };
52    output.flush()?;
53    eprintln!(
54        "exported {} entities and {} types for {}",
55        summary.entity_rows,
56        summary.type_count,
57        version.release_id()
58    );
59    Ok(())
60}
export_structural_catalog/export_structural_catalog.rs

export_structural_catalog/
export_structural_catalog.rs
