nbted 1.4.1

Command-line NBT editor
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use std::env;
use std::fs::File;
use std::process::Command;
use std::io::prelude::*;
use std::path::Path;

/* All the build file currently does is try to figure out the current
 * git revision, and write it to the OUT_DIR/git-revision.txt file */
fn main() {
    /* Figure out the current git revision */
    let git: String =
        match Command::new("git").arg("rev-parse").arg("HEAD").output() {
            Ok(x) => {
                match String::from_utf8(x.stdout) {
                    Ok(x) => format!(r#""{}""#, x.trim().to_string()),
                    Err(e) => {
                        println!("cargo:warning=build script got invalid output trying to get latest git revision: {:?}",
                                 e);
                        "unknown git revision".to_string()
                    },
                }
            },
            Err(e) => {
                println!("cargo:warning=build script unable to get latest git revision: {:?}",
                         e);
                "unknown git revision".to_string()
            },
        };

    let out_dir = env::var("OUT_DIR").unwrap();
    let dest_path = Path::new(&out_dir).join("git-revision.txt");
    let mut f = File::create(&dest_path).unwrap();

    f.write_all(git.as_bytes()).unwrap();
}