48 lines
1.7 KiB
Rust
48 lines
1.7 KiB
Rust
use std::{env, fs::File, io::Write, path::Path, process::Command};
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fn get_git_version() -> Result<(u32, String), std::io::Error> {
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let output = Command::new("git")
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.args(["rev-list", "--count", "HEAD"])
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.output()?;
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let output = output.stdout;
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let version_code = String::from_utf8(output).expect("Failed to read git count stdout");
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let version_code: u32 = version_code
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.trim()
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.parse()
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.map_err(|_| std::io::Error::other("Failed to parse git count"))?;
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let version_code = 40000 - 2815 + version_code; // For historical reasons
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let version_name = String::from_utf8(
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Command::new("git")
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.args(["describe", "--tags", "--always"])
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.output()?
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.stdout,
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)
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.map_err(|_| std::io::Error::other("Failed to parse git count"))?;
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let version_name = version_name.trim_start_matches('v').to_string();
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Ok((version_code, version_name))
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}
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fn main() {
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let (code, name) = match get_git_version() {
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Ok((code, name)) => (code, name),
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Err(_) => {
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// show warning if git is not installed
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println!("cargo:warning=Failed to get git version, using 0.0.0");
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(0, "0.0.0".to_string())
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}
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};
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let out_dir = env::var("OUT_DIR").expect("Failed to get $OUT_DIR");
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let out_dir = Path::new(&out_dir);
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File::create(Path::new(out_dir).join("VERSION_CODE"))
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.expect("Failed to create VERSION_CODE")
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.write_all(code.to_string().as_bytes())
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.expect("Failed to write VERSION_CODE");
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File::create(Path::new(out_dir).join("VERSION_NAME"))
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.expect("Failed to create VERSION_NAME")
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.write_all(name.trim().as_bytes())
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.expect("Failed to write VERSION_NAME");
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}
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