use std::process::Command;
fn main() {
#[cfg(windows)]
{
let mut res = winres::WindowsResource::new();
res.set_icon("../../images/icon.ico");
if let Err(e) = res.compile() {
eprintln!("Warning: Failed to embed icon: {}", e);
}
}
let cargo_version = env!("CARGO_PKG_VERSION");
let git_tag = get_git_output(&["git", "describe", "--tags", "--abbrev=0"])
.filter(|s| !s.is_empty() && s != "unknown");
let git_commit =
get_git_output(&["git", "rev-parse", "--short", "HEAD"]).filter(|s| !s.is_empty());
let version = if let Some(tag) = &git_tag {
tag.strip_prefix('v').unwrap_or(tag).to_string()
} else {
cargo_version.to_string()
};
let git_tag_display = git_tag.unwrap_or_else(|| format!("v{}", cargo_version));
let git_commit_display = git_commit.unwrap_or_else(|| "unknown".to_string());
let build_date = {
use std::time::SystemTime;
let now = SystemTime::now()
.duration_since(SystemTime::UNIX_EPOCH)
.expect("System time before UNIX EPOCH");
let secs = now.as_secs();
let days = secs / 86400;
let hours = (secs % 86400) / 3600;
let minutes = (secs % 3600) / 60;
let seconds = secs % 60;
let (year, month, day) = days_to_ymd(days);
format!(
"{:04}-{:02}-{:02} {:02}:{:02}:{:02} UTC",
year, month, day, hours, minutes, seconds
)
};
println!("cargo:rustc-env=VERSION={}", version);
println!("cargo:rustc-env=GIT_TAG={}", git_tag_display);
println!("cargo:rustc-env=GIT_COMMIT={}", git_commit_display);
println!("cargo:rustc-env=BUILD_DATE={}", build_date);
println!("cargo:rerun-if-changed=.git/HEAD");
println!("cargo:rerun-if-changed=.git/refs/tags");
println!("cargo:rerun-if-changed=.git/packed-refs");
}
fn get_git_output(args: &[&str]) -> Option<String> {
Command::new(args[0])
.args(&args[1..])
.output()
.ok()
.and_then(|output| {
if output.status.success() {
String::from_utf8(output.stdout)
.ok()
.map(|s| s.trim().to_string())
} else {
None
}
})
}
fn days_to_ymd(days: u64) -> (u64, u64, u64) {
let mut year = 1970;
let mut remaining_days = days;
loop {
let days_in_year = if is_leap_year(year) { 366 } else { 365 };
if remaining_days < days_in_year {
break;
}
remaining_days -= days_in_year;
year += 1;
}
let days_in_months = if is_leap_year(year) {
[31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
} else {
[31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
};
let mut month = 1;
for &days_in_month in &days_in_months {
if remaining_days < days_in_month as u64 {
break;
}
remaining_days -= days_in_month as u64;
month += 1;
}
(year, month, remaining_days + 1)
}
fn is_leap_year(year: u64) -> bool {
(year.is_multiple_of(4) && !year.is_multiple_of(100)) || year.is_multiple_of(400)
}