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
68
69
70
71
72
73
74
75
pub use bstr;
use once_cell::sync::Lazy;
use std::{collections::BTreeMap, path::Path, path::PathBuf, sync::Mutex};
pub use tempfile;
static SCRIPT_IDENTITY: Lazy<Mutex<BTreeMap<PathBuf, u32>>> = Lazy::new(|| Mutex::new(BTreeMap::new()));
pub fn hex_to_id(hex: &str) -> git_hash::ObjectId {
git_hash::ObjectId::from_hex(hex.as_bytes()).expect("40 bytes hex")
}
pub fn fixture_path(path: impl AsRef<str>) -> PathBuf {
PathBuf::from("tests").join("fixtures").join(path.as_ref())
}
pub fn scripted_fixture_repo_read_only(script_name: &str) -> std::result::Result<PathBuf, Box<dyn std::error::Error>> {
scripted_fixture_repo_read_only_with_args(script_name, None)
}
pub fn scripted_fixture_repo_read_only_with_args(
script_name: &str,
args: impl IntoIterator<Item = &'static str>,
) -> std::result::Result<PathBuf, Box<dyn std::error::Error>> {
use bstr::ByteSlice;
let script_path = fixture_path(script_name);
let args: Vec<String> = args.into_iter().map(Into::into).collect();
let mut map = SCRIPT_IDENTITY.lock().unwrap();
let script_identity = map
.entry(args.iter().fold(script_path.clone(), |p, a| p.join(a)))
.or_insert_with(|| {
let mut crc_value = crc::crc32::update(
0,
&crc::crc32::IEEE_TABLE,
&std::fs::read(&script_path).expect("file can be read entirely"),
);
for arg in args.iter() {
crc_value = crc::crc32::update(crc_value, &crc::crc32::IEEE_TABLE, arg.as_bytes());
}
crc_value
})
.to_owned();
let script_result_directory = fixture_path(
Path::new("generated")
.join(format!("{}", script_identity))
.to_string_lossy(),
);
if !script_result_directory.is_dir() {
std::fs::create_dir_all(&script_result_directory)?;
let script_absolute_path = std::env::current_dir()?.join(script_path);
let output = std::process::Command::new("bash")
.arg(script_absolute_path)
.args(args)
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
.current_dir(&script_result_directory)
.env_remove("GIT_DIR")
.env("GIT_AUTHOR_DATE", "2000-01-01 00:00:00 +0000")
.env("GIT_AUTHOR_EMAIL", "author@example.com")
.env("GIT_AUTHOR_NAME", "author")
.env("GIT_COMMITTER_DATE", "2000-01-02 00:00:00 +0000")
.env("GIT_COMMITTER_EMAIL", "committer@example.com")
.env("GIT_COMMITTER_NAME", "committer")
.output()?;
assert!(
output.status.success(),
"repo script failed: stdout: {}\nstderr: {}",
output.stdout.as_bstr(),
output.stderr.as_bstr()
);
}
Ok(script_result_directory)
}