blob: 74ba2a2beb2a3ee837204fd62e0c5bb1ef996094 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
use std::borrow::Cow;
use std::path::Path;
use std::process::Command;
const VERSION: &str = include_str!("../VERSION");
fn main() {
let git_hash = Command::new("git")
.args(["rev-parse", "HEAD"])
.output()
.ok()
.filter(|output| output.status.success())
.and_then(|x| String::from_utf8(x.stdout).ok());
let version: Cow<_> = match &git_hash {
Some(git_hash) => format!("{} ({})", VERSION, &git_hash[..8]).into(),
None => VERSION.into(),
};
println!(
"cargo:rustc-env=BUILD_TARGET={}",
std::env::var("TARGET").unwrap()
);
println!("cargo:rerun-if-changed=../VERSION");
println!("cargo:rustc-env=VERSION_AND_GIT_HASH={}", version);
if git_hash.is_none() {
return;
}
// we need to revparse because the git dir could be anywhere if you are
// using detached worktrees but there is no good way to obtain an OsString
// from command output so for now we can't accept non-utf8 paths here
// probably rare enouch where it doesn't matter tough we could use gitoxide
// here but that would be make it a hard dependency and slow compile times
let Some(git_dir): Option<String> = Command::new("git")
.args(["rev-parse", "--git-dir"])
.output()
.ok()
.filter(|output| output.status.success())
.and_then(|x| String::from_utf8(x.stdout).ok())
else {
return;
};
// If heads starts pointing at something else (different branch)
// we need to return
let head = Path::new(&git_dir).join("HEAD");
if head.exists() {
println!("cargo:rerun-if-changed={}", head.display());
}
// if the thing head points to (branch) itself changes
// we need to return
let Some(head_ref): Option<String> = Command::new("git")
.args(["symbolic-ref", "HEAD"])
.output()
.ok()
.filter(|output| output.status.success())
.and_then(|x| String::from_utf8(x.stdout).ok())
else {
return;
};
let head_ref = Path::new(&git_dir).join(head_ref);
if head_ref.exists() {
println!("cargo:rerun-if-changed={}", head_ref.display());
}
}
|
