132 lines
2.9 KiB
Rust
132 lines
2.9 KiB
Rust
// cargo.rs - Rust package manager
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import rustc::syntax::{ast, codemap, visit};
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import rustc::syntax::parse::parser;
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import std::io;
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import std::option;
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import std::option::{none, some};
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import std::run;
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import std::str;
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import std::tempfile;
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import std::vec;
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type pkg = {
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name: str,
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vers: str,
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uuid: str,
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desc: option::t<str>,
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sigs: option::t<str>
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};
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fn load_link(mis: [@ast::meta_item]) -> (option::t<str>,
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option::t<str>,
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option::t<str>) {
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let name = none;
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let vers = none;
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let uuid = none;
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for a: @ast::meta_item in mis {
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alt a.node {
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ast::meta_name_value(v, {node: ast::lit_str(s), span: _}) {
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alt v {
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"name" { name = some(s); }
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"vers" { vers = some(s); }
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"uuid" { uuid = some(s); }
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_ { }
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}
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}
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}
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}
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(name, vers, uuid)
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}
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fn load_pkg(filename: str) -> option::t<pkg> {
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let sess = @{cm: codemap::new_codemap(), mutable next_id: 0};
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let c = parser::parse_crate_from_crate_file(filename, [], sess);
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let name = none;
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let vers = none;
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let uuid = none;
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let desc = none;
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let sigs = none;
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for a in c.node.attrs {
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alt a.node.value.node {
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ast::meta_name_value(v, {node: ast::lit_str(s), span: _}) {
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alt v {
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"desc" { desc = some(v); }
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"sigs" { sigs = some(v); }
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_ { }
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}
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}
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ast::meta_list(v, mis) {
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if v == "link" {
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let (n, v, u) = load_link(mis);
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name = n;
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vers = v;
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uuid = u;
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}
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}
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}
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}
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alt (name, vers, uuid) {
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(some(name0), some(vers0), some(uuid0)) {
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some({
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name: name0,
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vers: vers0,
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uuid: uuid0,
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desc: desc,
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sigs: sigs})
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}
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_ { ret none; }
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}
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}
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fn print(s: str) {
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io::stdout().write_line(s);
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}
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fn rest(s: str, start: uint) -> str {
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if (start >= str::char_len(s)) {
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""
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} else {
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str::char_slice(s, start, str::char_len(s))
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}
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}
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fn install_file(_path: str) -> option::t<str> {
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let wd = tempfile::mkdtemp("/tmp/cargo-work-", "");
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ret wd;
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}
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fn cmd_install(argv: [str]) {
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// cargo install <pkg>
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if vec::len(argv) < 3u {
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cmd_usage();
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ret;
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}
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let _wd = if str::starts_with(argv[2], "file:") {
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let path = rest(argv[2], 5u);
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install_file(path)
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} else {
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none
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};
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}
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fn cmd_usage() {
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print("Usage: cargo <verb> [args...]");
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}
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fn main(argv: [str]) {
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if vec::len(argv) < 2u {
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cmd_usage();
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ret;
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}
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alt argv[1] {
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"usage" { cmd_usage(); }
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_ { cmd_usage(); }
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}
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}
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