Mercurial > public > mercurial-scm > hg

annotate rust/hg-core/build.rs @ 44713:97c10b157665

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
rust: add option of static linking a local Re2 install Previously, only dynamically linking the system-wide install was possible. We force the user to provide one to prevent hard-to-track errors. Differential Revision: https://phab.mercurial-scm.org/D8451
author Rapha?l Gom?s <rgomes@octobus.net>
date Thu, 16 Apr 2020 17:31:11 +0200
parents d8d4fa9a7f18
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
44305
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
1 // build.rs
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
2 //
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
3 // Copyright 2020 Raphaël Gomès <rgomes@octobus.net>
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
4 //
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
5 // This software may be used and distributed according to the terms of the
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
6 // GNU General Public License version 2 or any later version.
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
7
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
8 #[cfg(feature = "with-re2")]
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
9 use cc;
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
10
44713
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
11 /// Uses either the system Re2 install as a dynamic library or the provided
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
12 /// build as a static library
44305
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
13 #[cfg(feature = "with-re2")]
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
14 fn compile_re2() {
44713
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
15 use cc;
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
16 use std::path::Path;
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
17 use std::process::exit;
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
18
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
19 let msg = r"HG_RE2_PATH must be one of `system|<path to build source clone of Re2>`";
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
20 let re2 = match std::env::var_os("HG_RE2_PATH") {
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
21 None => {
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
22 eprintln!("{}", msg);
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
23 exit(1)
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
24 }
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
25 Some(v) => {
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
26 if v == "system" {
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
27 None
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
28 } else {
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
29 Some(v)
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
30 }
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
31 }
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
32 };
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
33
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
34 let mut options = cc::Build::new();
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
35 options
44305
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
36 .cpp(true)
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
37 .flag("-std=c++11")
44713
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
38 .file("src/re2/rust_re2.cpp");
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
39
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
40 if let Some(ref source) = re2 {
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
41 options.include(Path::new(source));
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
42 };
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
43
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
44 options.compile("librustre.a");
44305
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
45
44713
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
46 if let Some(ref source) = &re2 {
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
47 // Link the local source statically
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
48 println!(
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
49 "cargo:rustc-link-search=native={}",
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
50 Path::new(source).join(Path::new("obj")).display()
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
51 );
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
52 println!("cargo:rustc-link-lib=static=re2");
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
53 } else {
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
54 println!("cargo:rustc-link-lib=re2");
97c10b157665 rust: add option of static linking a local Re2 install
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44305
diff changeset
55 }
44305
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
56 }
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
57
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
58 fn main() {
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
59 #[cfg(feature = "with-re2")]
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
60 compile_re2();
d8d4fa9a7f18 rust-re2: add wrapper for calling Re2 from Rust
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
61 }