mirror of
https://github.com/uutils/coreutils
synced 2024-07-22 02:14:38 +00:00
9d8abbcb06
Builds the uutils multicall binary containing all utils (except stdbuf)
by default. To only build a subset
`cargo --no-default-features --features <utils>`
can be used.
Whats missing is building the standalone binaries and a mechanism to
automatically disable the build of unix only utils on windows.
62 lines
2.5 KiB
Rust
62 lines
2.5 KiB
Rust
use std::env;
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use std::fs::File;
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use std::io::Write;
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use std::path::Path;
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pub fn main() {
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let feature_prefix = "CARGO_FEATURE_";
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let out_dir = env::var("OUT_DIR").unwrap();
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let mut crates = Vec::new();
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for (key, val) in env::vars() {
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if val == "1" && key.starts_with(feature_prefix) {
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let krate = key[feature_prefix.len()..].to_lowercase();
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match krate.as_ref() {
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"default" => continue,
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"all" => continue,
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_ => {},
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}
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crates.push(krate.to_string());
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}
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}
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crates.sort();
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let mut cf = File::create(Path::new(&out_dir).join("uutils_crates.rs")).unwrap();
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let mut mf = File::create(Path::new(&out_dir).join("uutils_map.rs")).unwrap();
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mf.write_all("
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type UtilityMap = HashMap<&'static str, fn(Vec<String>) -> i32>;
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fn util_map() -> UtilityMap {
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let mut map: UtilityMap = HashMap::new();\n".as_bytes()).unwrap();
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for krate in crates {
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match krate.as_ref() {
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"false" => continue,
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"true" => continue,
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_ => cf.write_all(format!("extern crate {krate} as uu{krate};\n", krate=krate).as_bytes()).unwrap(),
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}
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match krate.as_ref() {
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"hashsum" => {
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mf.write_all("map.insert(\"hashsum\", uuhashsum::uumain);
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map.insert(\"md5sum\", uuhashsum::uumain);
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map.insert(\"sha1sum\", uuhashsum::uumain);
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map.insert(\"sha224sum\", uuhashsum::uumain);
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map.insert(\"sha256sum\", uuhashsum::uumain);
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map.insert(\"sha384sum\", uuhashsum::uumain);
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map.insert(\"sha512sum\", uuhashsum::uumain);\n".as_bytes()).unwrap();
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},
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"false" =>
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mf.write_all("fn uufalse(_: Vec<String>) -> i32 { 1 }
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map.insert(\"false\", uufalse as fn(Vec<String>) -> i32);\n".as_bytes()).unwrap(),
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"true" =>
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mf.write_all("fn uutrue(_: Vec<String>) -> i32 { 0 }
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map.insert(\"true\", uutrue as fn(Vec<String>) -> i32);\n".as_bytes()).unwrap(),
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_ =>
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mf.write_all(format!("map.insert(\"{krate}\", uu{krate}::uumain as fn(Vec<String>) -> i32);\n", krate= krate).as_bytes()).unwrap(),
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}
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}
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mf.write_all("map
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}\n".as_bytes()).unwrap();
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cf.flush().unwrap();
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mf.flush().unwrap();
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}
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