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Simplify a few things in build.rs

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This commit is contained in:
Mahmoud Al-Qudsi 2024-01-19 15:31:00 -06:00 committed by Fabian Boehm
parent 6be6890fa3
commit 66a4beadce
1 changed files with 32 additions and 35 deletions
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67
build.rs
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@ -11,32 +11,28 @@ fn main() {
let rust_dir = env!("CARGO_MANIFEST_DIR");
// Add our default to enable tools that don't go through CMake, like "cargo test" and the
// language server.
let build_dir =
PathBuf::from(std::env::var("FISH_BUILD_DIR").unwrap_or(format!("{rust_dir}/build")));
println!("cargo:rustc-env=FISH_BUILD_DIR={}", build_dir.display());
let build_dir = std::env::var("FISH_BUILD_DIR").unwrap_or(format!("{rust_dir}/build"));
rsconf::set_env_value("FISH_BUILD_DIR", &build_dir);
let cached_curses_libnames = Path::join(&build_dir, "cached-curses-libnames");
let cached_curses_libnames = Path::join(Path::new(&build_dir), "cached-curses-libnames");
let curses_libnames: Vec<String> = if let Ok(lib_path_list) = env::var("CURSES_LIBRARY_LIST") {
let lib_paths = lib_path_list
.split(',')
.filter(|s| !s.is_empty())
.map(|s| s.to_string());
let lib_paths = lib_path_list.split(',').filter(|s| !s.is_empty());
let curses_libnames: Vec<_> = lib_paths
.map(|libpath| {
let stem = Path::new(&libpath).file_stem().unwrap().to_str().unwrap();
// Ubuntu-32bit-fetched-pcre2's ncurses doesn't have the "lib" prefix.
stem.strip_prefix("lib").unwrap_or(stem).to_owned()
stem.strip_prefix("lib").unwrap_or(stem).to_string()
})
.collect();
std::fs::write(cached_curses_libnames, curses_libnames.join("\n") + "\n").unwrap();
curses_libnames
} else {
let lib_cache = std::fs::read(cached_curses_libnames).unwrap_or_default();
let lib_cache = String::from_utf8(lib_cache).unwrap();
let lib_cache = std::str::from_utf8(&lib_cache).unwrap();
lib_cache
.split('\n')
.filter(|s| !s.is_empty())
.map(|s| s.to_owned())
.map(|s| s.to_string())
.collect()
};
if !curses_libnames.is_empty() {
@ -154,7 +150,7 @@ fn have_gettext(target: &Target) -> Result<bool, Box<dyn Error>> {
for symbol in &symbols {
// Historically, libintl was required in order to use gettext() and co, but that
// functionality was subsumed by some versions of libc.
if target.has_symbol_in::<&str>(symbol, &[]) {
if target.has_symbol(symbol, None) {
// No need to link anything special for this symbol
found += 1;
continue;
@ -177,38 +173,39 @@ fn have_gettext(target: &Target) -> Result<bool, Box<dyn Error>> {
}
}
fn get_path(name: &str, default: &str, onvar: PathBuf) -> PathBuf {
let mut var = PathBuf::from(env::var(name).unwrap_or(default.to_string()));
if var.is_relative() {
var = onvar.join(var);
}
var
}
fn setup_paths() {
rsconf::rebuild_if_env_changed("PREFIX");
rsconf::rebuild_if_env_changed("DATADIR");
rsconf::rebuild_if_env_changed("BINDIR");
rsconf::rebuild_if_env_changed("SYSCONFDIR");
rsconf::rebuild_if_env_changed("LOCALEDIR");
rsconf::rebuild_if_env_changed("DOCDIR");
fn get_path(name: &str, default: &str, onvar: PathBuf) -> PathBuf {
let mut var = PathBuf::from(env::var(name).unwrap_or(default.to_string()));
if var.is_relative() {
var = onvar.join(var);
}
var
}
let prefix = PathBuf::from(env::var("PREFIX").unwrap_or("/usr/local".to_string()));
if prefix.is_relative() {
panic!("Can't have relative prefix");
}
println!("cargo:rustc-env=PREFIX={}", prefix.to_str().unwrap());
rsconf::rebuild_if_env_changed("PREFIX");
rsconf::set_env_value("PREFIX", prefix.to_str().unwrap());
let datadir = get_path("DATADIR", "share/", prefix.clone());
println!("cargo:rustc-env=DATADIR={}", datadir.to_str().unwrap());
rsconf::set_env_value("DATADIR", datadir.to_str().unwrap());
rsconf::rebuild_if_env_changed("DATADIR");
let bindir = get_path("BINDIR", "bin/", prefix.clone());
println!("cargo:rustc-env=BINDIR={}", bindir.to_str().unwrap());
rsconf::set_env_value("BINDIR", bindir.to_str().unwrap());
rsconf::rebuild_if_env_changed("BINDIR");
let sysconfdir = get_path("SYSCONFDIR", "etc/", datadir.clone());
println!(
"cargo:rustc-env=SYSCONFDIR={}",
sysconfdir.to_str().unwrap()
);
rsconf::set_env_value("SYSCONFDIR", sysconfdir.to_str().unwrap());
rsconf::rebuild_if_env_changed("SYSCONFDIR");
let localedir = get_path("LOCALEDIR", "locale/", datadir.clone());
println!("cargo:rustc-env=LOCALEDIR={}", localedir.to_str().unwrap());
rsconf::set_env_value("LOCALEDIR", localedir.to_str().unwrap());
rsconf::rebuild_if_env_changed("LOCALEDIR");
let docdir = get_path("DOCDIR", "doc/fish", datadir.clone());
println!("cargo:rustc-env=DOCDIR={}", docdir.to_str().unwrap());
rsconf::set_env_value("DOCDIR", docdir.to_str().unwrap());
rsconf::rebuild_if_env_changed("DOCDIR");
}