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// Copyright 2025-2026 Dillution <[email protected]>.
//
// This file is part of DPIBreak.
//
// DPIBreak is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the
// Free Software Foundation, either version 3 of the License, or (at your
// option) any later version.
//
// DPIBreak is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License
// along with DPIBreak. If not, see <https://www.gnu.org/licenses/>.
use std::collections::HashMap;
use std::fs;
fn parse_defaults(src: &str) -> HashMap<String, String> {
let mut map = HashMap::new();
for line in src.lines() {
let line = line.trim();
let line = if let Some(rest) = line.strip_prefix("#[cfg(") {
rest.split_once(")] ").map_or(line, |(_, after)| after)
} else {
line
};
if !line.starts_with("const DEFAULT_") {
continue;
}
// `const DEFAULT_FOO: type = value;`
let Some(rest) = line.strip_prefix("const ") else { continue };
let Some((name, rest)) = rest.split_once(':') else { continue };
let Some((_, value)) = rest.split_once('=') else { continue };
let name = name.trim();
let value = value.trim().trim_end_matches(';').trim();
let value = value.trim_matches('"');
// `LogLevel::Warning` -> `warning`
let value = value.split("::").last().unwrap_or(value);
let value = value.to_lowercase();
map.insert(name.to_string(), value.to_string());
}
map
}
// fn build_date() -> String {
// chrono::Utc::now().format("%B %Y").to_string()
// }
fn version_for_man() -> String {
let ver = env!("CARGO_PKG_VERSION"); // "0.3.0"
let parts: Vec<&str> = ver.splitn(3, '.').collect();
format!("v{}.{}", parts[0], parts[1])
}
fn main() {
if std::env::var_os("DPIBREAK_SKIP_BUILD_RS").is_some() {
println!("cargo:warning=build.rs skipped (DPIBREAK_SKIP_BUILD_RS is set)");
return;
}
// preprocess dpibreak.1.in
let opt_rs = fs::read_to_string("src/opt.rs").expect("failed to read src/opt.rs");
let template = fs::read_to_string("dpibreak.1.in").expect("failed to read dpibreak.1.in");
let mut defaults = parse_defaults(&opt_rs);
// defaults.insert("BUILD_DATE".to_string(), build_date());
defaults.insert("VERSION".to_string(), version_for_man());
let mut out = template;
for (key, value) in &defaults {
out = out.replace(&format!("{{{{{key}}}}}"), value);
}
fs::write("dpibreak.1", &out).expect("failed to write dpibreak.1");
// windows
let target_os = std::env::var("CARGO_CFG_TARGET_OS").unwrap_or_default();
if target_os != "windows" {
eprintln!("target_os is not windows");
return;
}
let mut res = winres::WindowsResource::new();
res.set_manifest_file("res/app.manifest");
res.set_icon("res/myicon.ico");
res.compile().expect("Failed to compile manifest resource");
}
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