Mercurial > hg
annotate rust/hgcli/build.rs @ 36297:a59ff82154b8
httppeer: headers are native strings
# skip-blame just marking some native strings
Differential Revision: https://phab.mercurial-scm.org/D2313
author | Augie Fackler <augie@google.com> |
---|---|
date | Sun, 18 Feb 2018 00:03:39 -0500 |
parents | 24b5106e3e1e |
children | ce088b38f92b |
rev | line source |
---|---|
35569
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1 // build.rs -- Configure build environment for `hgcli` Rust package. |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
2 // |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
3 // Copyright 2017 Gregory Szorc <gregory.szorc@gmail.com> |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
4 // |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
5 // This software may be used and distributed according to the terms of the |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
6 // GNU General Public License version 2 or any later version. |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
7 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
8 use std::collections::HashMap; |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
9 use std::env; |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
10 use std::path::Path; |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
11 use std::process::Command; |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
12 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
13 struct PythonConfig { |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
14 python: String, |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
15 config: HashMap<String, String>, |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
16 } |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
17 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
18 fn get_python_config() -> PythonConfig { |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
19 // The python27-sys crate exports a Cargo variable defining the full |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
20 // path to the interpreter being used. |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
21 let python = env::var("DEP_PYTHON27_PYTHON_INTERPRETER").expect( |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
22 "Missing DEP_PYTHON27_PYTHON_INTERPRETER; bad python27-sys crate?", |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
23 ); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
24 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
25 if !Path::new(&python).exists() { |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
26 panic!( |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
27 "Python interpreter {} does not exist; this should never happen", |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
28 python |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
29 ); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
30 } |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
31 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
32 // This is a bit hacky but it gets the job done. |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
33 let separator = "SEPARATOR STRING"; |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
34 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
35 let script = "import sysconfig; \ |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
36 c = sysconfig.get_config_vars(); \ |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
37 print('SEPARATOR STRING'.join('%s=%s' % i for i in c.items()))"; |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
38 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
39 let mut command = Command::new(&python); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
40 command.arg("-c").arg(script); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
41 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
42 let out = command.output().unwrap(); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
43 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
44 if !out.status.success() { |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
45 panic!( |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
46 "python script failed: {}", |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
47 String::from_utf8_lossy(&out.stderr) |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
48 ); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
49 } |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
50 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
51 let stdout = String::from_utf8_lossy(&out.stdout); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
52 let mut m = HashMap::new(); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
53 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
54 for entry in stdout.split(separator) { |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
55 let mut parts = entry.splitn(2, "="); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
56 let key = parts.next().unwrap(); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
57 let value = parts.next().unwrap(); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
58 m.insert(String::from(key), String::from(value)); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
59 } |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
60 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
61 PythonConfig { |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
62 python: python, |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
63 config: m, |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
64 } |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
65 } |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
66 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
67 #[cfg(not(target_os = "windows"))] |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
68 fn have_shared(config: &PythonConfig) -> bool { |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
69 match config.config.get("Py_ENABLE_SHARED") { |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
70 Some(value) => value == "1", |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
71 None => false, |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
72 } |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
73 } |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
74 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
75 #[cfg(target_os = "windows")] |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
76 fn have_shared(config: &PythonConfig) -> bool { |
35603
11c86ab69e67
rust: move import of PathBuf
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35569
diff
changeset
|
77 use std::path::PathBuf; |
11c86ab69e67
rust: move import of PathBuf
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35569
diff
changeset
|
78 |
35569
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
79 // python27.dll should exist next to python2.7.exe. |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
80 let mut dll = PathBuf::from(&config.python); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
81 dll.pop(); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
82 dll.push("python27.dll"); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
83 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
84 return dll.exists(); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
85 } |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
86 |
35607
24b5106e3e1e
rust: avoid redundant 'static lifetime
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35603
diff
changeset
|
87 const REQUIRED_CONFIG_FLAGS: [&str; 2] = ["Py_USING_UNICODE", "WITH_THREAD"]; |
35569
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
88 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
89 fn main() { |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
90 let config = get_python_config(); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
91 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
92 println!("Using Python: {}", config.python); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
93 println!("cargo:rustc-env=PYTHON_INTERPRETER={}", config.python); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
94 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
95 let prefix = config.config.get("prefix").unwrap(); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
96 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
97 println!("Prefix: {}", prefix); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
98 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
99 // TODO Windows builds don't expose these config flags. Figure out another |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
100 // way. |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
101 #[cfg(not(target_os = "windows"))] |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
102 for key in REQUIRED_CONFIG_FLAGS.iter() { |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
103 let result = match config.config.get(*key) { |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
104 Some(value) => value == "1", |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
105 None => false, |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
106 }; |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
107 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
108 if !result { |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
109 panic!("Detected Python requires feature {}", key); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
110 } |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
111 } |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
112 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
113 // We need a Python shared library. |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
114 if !have_shared(&config) { |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
115 panic!("Detected Python lacks a shared library, which is required"); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
116 } |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
117 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
118 let ucs4 = match config.config.get("Py_UNICODE_SIZE") { |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
119 Some(value) => value == "4", |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
120 None => false, |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
121 }; |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
122 |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
123 if !ucs4 { |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
124 #[cfg(not(target_os = "windows"))] |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
125 panic!("Detected Python doesn't support UCS-4 code points"); |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
126 } |
964212780daf
rust: implementation of `hg`
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
127 } |