56 lines
1.8 KiB
Rust
56 lines
1.8 KiB
Rust
use clap::{App, Arg, ArgMatches, SubCommand};
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use std::fs;
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mod data;
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fn main() {
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let matches = App::new("rgit vcs")
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.version("0.1.0")
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.author("Gonçalo Valério <gon@ovalerio.net>")
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.about("A watered-down git clone")
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.subcommand(SubCommand::with_name("init").about("creates new repository"))
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.subcommand(
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SubCommand::with_name("hash-object")
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.about("created an hash for an object")
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.arg(Arg::with_name("file").index(1).required(true)),
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)
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.subcommand(
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SubCommand::with_name("cat-file")
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.about("outputs the original object from the provided hash")
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.arg(Arg::with_name("hash").index(1).required(true)),
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)
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.get_matches();
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match matches.subcommand_name() {
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Some("init") => init(),
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Some("hash-object") => hash_object(matches),
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Some("cat-file") => cat_file(matches),
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_ => println!("unknown sub command"),
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}
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}
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fn init() {
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match data::init() {
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Ok(()) => println!("Repository created"),
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_ => println!("Failed. Perhaps the repository already exists."),
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}
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}
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fn hash_object(matches: ArgMatches) {
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if let Some(cmd_matches) = matches.subcommand_matches("hash-object") {
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let content = fs::read(cmd_matches.value_of("file").unwrap())
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.expect("Something went wrong reading the provided file");
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let hash = data::hash_object(&content, "blob".to_owned());
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println!("{}", hash);
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}
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}
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fn cat_file(matches: ArgMatches) {
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if let Some(cmd_matches) = matches.subcommand_matches("cat-file") {
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let file_contents = data::get_object(
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cmd_matches.value_of("hash").unwrap().to_owned(),
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"".to_owned(),
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);
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println!("{}", file_contents)
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}
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}
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