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-rw-r--r--src/rust/build.rs192
1 files changed, 0 insertions, 192 deletions
diff --git a/src/rust/build.rs b/src/rust/build.rs
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index 5626b35f75..0000000000
--- a/src/rust/build.rs
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@@ -1,192 +0,0 @@
-//! Build script for Rust modules in Tor.
-//!
-//! We need to use this because some of our Rust tests need to use some
-//! of our C modules, which need to link some external libraries.
-//!
-//! This script works by looking at a "config.rust" file generated by our
-//! configure script, and then building a set of options for cargo to pass to
-//! the compiler.
-
-use std::collections::HashMap;
-use std::env;
-use std::fs::File;
-use std::io;
-use std::io::prelude::*;
-use std::path::PathBuf;
-
-/// Wrapper around a key-value map.
-struct Config(HashMap<String, String>);
-
-/// Locate a config.rust file generated by autoconf, starting in the OUT_DIR
-/// location provided by cargo and recursing up the directory tree. Note that
-/// we need to look in the OUT_DIR, since autoconf will place generated files
-/// in the build directory.
-fn find_cfg() -> io::Result<String> {
- let mut path = PathBuf::from(env::var("OUT_DIR").unwrap());
- loop {
- path.push("config.rust");
- if path.exists() {
- return Ok(path.to_str().unwrap().to_owned());
- }
- path.pop(); // remove config.rust
- if !path.pop() {
- // can't remove last part of directory
- return Err(io::Error::new(io::ErrorKind::NotFound, "No config.rust"));
- }
- }
-}
-
-impl Config {
- /// Find the config.rust file and try to parse it.
- ///
- /// The file format is a series of lines of the form KEY=VAL, with
- /// any blank lines and lines starting with # ignored.
- fn load() -> io::Result<Config> {
- let path = find_cfg()?;
- let f = File::open(&path)?;
- let reader = io::BufReader::new(f);
- let mut map = HashMap::new();
- for line in reader.lines() {
- let s = line?;
- if s.trim().starts_with("#") || s.trim() == "" {
- continue;
- }
- let idx = match s.find("=") {
- None => {
- return Err(io::Error::new(io::ErrorKind::InvalidData, "missing ="));
- }
- Some(x) => x,
- };
- let (var, eq_val) = s.split_at(idx);
- let val = &eq_val[1..];
- map.insert(var.to_owned(), val.to_owned());
- }
- Ok(Config(map))
- }
-
- /// Return a reference to the value whose key is 'key'.
- ///
- /// Panics if 'key' is not found in the configuration.
- fn get(&self, key: &str) -> &str {
- self.0.get(key).unwrap()
- }
-
- /// Add a dependency on a static C library that is part of Tor, by name.
- fn component(&self, s: &str) {
- println!("cargo:rustc-link-lib=static={}", s);
- }
-
- /// Add a dependency on a native library that is not part of Tor, by name.
- fn dependency(&self, s: &str) {
- println!("cargo:rustc-link-lib={}", s);
- }
-
- /// Add a link path, relative to Tor's build directory.
- fn link_relpath(&self, s: &str) {
- let builddir = self.get("BUILDDIR");
- println!("cargo:rustc-link-search=native={}/{}", builddir, s);
- }
-
- /// Add an absolute link path.
- fn link_path(&self, s: &str) {
- println!("cargo:rustc-link-search=native={}", s);
- }
-
- /// Parse the CFLAGS in s, looking for -l and -L items, and adding
- /// rust configuration as appropriate.
- fn from_cflags(&self, s: &str) {
- let mut next_is_lib = false;
- let mut next_is_path = false;
- for ent in self.get(s).split_whitespace() {
- if next_is_lib {
- self.dependency(ent);
- next_is_lib = false;
- } else if next_is_path {
- self.link_path(ent);
- next_is_path = false;
- } else if ent == "-l" {
- next_is_lib = true;
- } else if ent == "-L" {
- next_is_path = true;
- } else if ent.starts_with("-L") {
- self.link_path(&ent[2..]);
- } else if ent.starts_with("-l") {
- self.dependency(&ent[2..]);
- }
- }
- }
-}
-
-pub fn main() {
- let cfg = Config::load().unwrap();
- let package = env::var("CARGO_PKG_NAME").unwrap();
-
- match package.as_ref() {
- "crypto" => {
- // Right now, I'm having a separate configuration for each Rust
- // package, since I'm hoping we can trim them down. Once we have a
- // second Rust package that needs to use this build script, let's
- // extract some of this stuff into a module.
- //
- // This is a ridiculous amount of code to be pulling in just
- // to test our crypto library: modularity would be our
- // friend here.
- cfg.from_cflags("TOR_LDFLAGS_zlib");
- cfg.from_cflags("TOR_LDFLAGS_openssl");
- cfg.from_cflags("TOR_LDFLAGS_libevent");
-
- cfg.link_relpath("src/lib");
- cfg.link_relpath("src/ext/keccak-tiny");
- cfg.link_relpath("src/ext/ed25519/ref10");
- cfg.link_relpath("src/ext/ed25519/donna");
- cfg.link_relpath("src/trunnel");
-
- // Note that we can't pull in "libtor-testing", or else we
- // will have dependencies on all the other rust packages that
- // tor uses. We must be careful with factoring and dependencies
- // moving forward!
- cfg.component("tor-crypt-ops-testing");
- cfg.component("tor-sandbox-testing");
- cfg.component("tor-encoding-testing");
- cfg.component("tor-fs-testing");
- cfg.component("tor-net-testing");
- cfg.component("tor-buf-testing");
- cfg.component("tor-time-testing");
- cfg.component("tor-thread-testing");
- cfg.component("tor-memarea-testing");
- cfg.component("tor-log-testing");
- cfg.component("tor-lock-testing");
- cfg.component("tor-fdio-testing");
- cfg.component("tor-container-testing");
- cfg.component("tor-smartlist-core-testing");
- cfg.component("tor-string-testing");
- cfg.component("tor-malloc");
- cfg.component("tor-wallclock");
- cfg.component("tor-err-testing");
- cfg.component("tor-version-testing");
- cfg.component("tor-intmath-testing");
- cfg.component("tor-ctime-testing");
- cfg.component("curve25519_donna");
- cfg.component("keccak-tiny");
- cfg.component("ed25519_ref10");
- cfg.component("ed25519_donna");
- cfg.component("or-trunnel-testing");
-
- cfg.from_cflags("TOR_ZLIB_LIBS");
- cfg.from_cflags("TOR_LIB_MATH");
- cfg.from_cflags("NSS_LIBS");
- cfg.from_cflags("TOR_OPENSSL_LIBS");
- cfg.from_cflags("TOR_LIBEVENT_LIBS");
- cfg.from_cflags("TOR_LIB_WS32");
- cfg.from_cflags("TOR_LIB_GDI");
- cfg.from_cflags("TOR_LIB_USERENV");
- cfg.from_cflags("CURVE25519_LIBS");
- cfg.from_cflags("TOR_LZMA_LIBS");
- cfg.from_cflags("TOR_ZSTD_LIBS");
- cfg.from_cflags("LIBS");
- }
- _ => {
- panic!("No configuration in build.rs for package {}", package);
- }
- }
-}
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