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1 | // Copyright 2015 The Rust Project Developers. See the COPYRIGHT |
2 | // file at the top-level directory of this distribution and at | |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
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11 | //! Build configuration for Rust's release channels. |
12 | //! | |
13 | //! Implements the stable/beta/nightly channel distinctions by setting various | |
14 | //! flags like the `unstable_features`, calculating variables like `release` and | |
15 | //! `package_vers`, and otherwise indicating to the compiler what it should | |
16 | //! print out as part of its version information. | |
17 | ||
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18 | use std::fs::{self, File}; |
19 | use std::io::prelude::*; | |
7453a54e SL |
20 | use std::process::Command; |
21 | ||
22 | use build_helper::output; | |
54a0048b | 23 | use md5; |
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24 | |
25 | use build::Build; | |
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26 | |
27 | pub fn collect(build: &mut Build) { | |
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28 | // Currently the canonical source for the release number (e.g. 1.10.0) and |
29 | // the prerelease version (e.g. `.1`) is in `mk/main.mk`. We "parse" that | |
30 | // here to learn about those numbers. | |
7453a54e SL |
31 | let mut main_mk = String::new(); |
32 | t!(t!(File::open(build.src.join("mk/main.mk"))).read_to_string(&mut main_mk)); | |
33 | let mut release_num = ""; | |
34 | let mut prerelease_version = ""; | |
35 | for line in main_mk.lines() { | |
36 | if line.starts_with("CFG_RELEASE_NUM") { | |
37 | release_num = line.split('=').skip(1).next().unwrap().trim(); | |
38 | } | |
39 | if line.starts_with("CFG_PRERELEASE_VERSION") { | |
40 | prerelease_version = line.split('=').skip(1).next().unwrap().trim(); | |
41 | } | |
42 | } | |
43 | ||
a7813a04 XL |
44 | // Depending on the channel, passed in `./configure --release-channel`, |
45 | // determine various properties of the build. | |
7453a54e SL |
46 | match &build.config.channel[..] { |
47 | "stable" => { | |
48 | build.release = release_num.to_string(); | |
54a0048b | 49 | build.package_vers = build.release.clone(); |
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50 | build.unstable_features = false; |
51 | } | |
52 | "beta" => { | |
53 | build.release = format!("{}-beta{}", release_num, | |
54 | prerelease_version); | |
54a0048b | 55 | build.package_vers = "beta".to_string(); |
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56 | build.unstable_features = false; |
57 | } | |
58 | "nightly" => { | |
59 | build.release = format!("{}-nightly", release_num); | |
54a0048b | 60 | build.package_vers = "nightly".to_string(); |
7453a54e SL |
61 | build.unstable_features = true; |
62 | } | |
63 | _ => { | |
64 | build.release = format!("{}-dev", release_num); | |
54a0048b | 65 | build.package_vers = build.release.clone(); |
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66 | build.unstable_features = true; |
67 | } | |
68 | } | |
69 | build.version = build.release.clone(); | |
70 | ||
a7813a04 XL |
71 | // If we have a git directory, add in some various SHA information of what |
72 | // commit this compiler was compiled from. | |
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73 | if fs::metadata(build.src.join(".git")).is_ok() { |
74 | let ver_date = output(Command::new("git").current_dir(&build.src) | |
75 | .arg("log").arg("-1") | |
76 | .arg("--date=short") | |
77 | .arg("--pretty=format:%cd")); | |
78 | let ver_hash = output(Command::new("git").current_dir(&build.src) | |
79 | .arg("rev-parse").arg("HEAD")); | |
80 | let short_ver_hash = output(Command::new("git") | |
81 | .current_dir(&build.src) | |
82 | .arg("rev-parse") | |
83 | .arg("--short=9") | |
84 | .arg("HEAD")); | |
85 | let ver_date = ver_date.trim().to_string(); | |
86 | let ver_hash = ver_hash.trim().to_string(); | |
87 | let short_ver_hash = short_ver_hash.trim().to_string(); | |
88 | build.version.push_str(&format!(" ({} {})", short_ver_hash, | |
89 | ver_date)); | |
90 | build.ver_date = Some(ver_date.to_string()); | |
91 | build.ver_hash = Some(ver_hash); | |
92 | build.short_ver_hash = Some(short_ver_hash); | |
93 | } | |
94 | ||
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95 | // Calculate this compiler's bootstrap key, which is currently defined as |
96 | // the first 8 characters of the md5 of the release string. | |
54a0048b SL |
97 | let key = md5::compute(build.release.as_bytes()); |
98 | build.bootstrap_key = format!("{:02x}{:02x}{:02x}{:02x}", | |
99 | key[0], key[1], key[2], key[3]); | |
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100 | |
101 | // Slurp up the stage0 bootstrap key as we're bootstrapping from an | |
102 | // otherwise stable compiler. | |
103 | let mut s = String::new(); | |
104 | t!(t!(File::open(build.src.join("src/stage0.txt"))).read_to_string(&mut s)); | |
105 | if let Some(line) = s.lines().find(|l| l.starts_with("rustc_key")) { | |
106 | if let Some(key) = line.split(": ").nth(1) { | |
107 | build.bootstrap_key_stage0 = key.to_string(); | |
108 | } | |
109 | } | |
7453a54e | 110 | } |