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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
use reqwest::header::USER_AGENT;
use tracing::instrument;
use url::Url;
use crate::error::Error;
use crate::error::Result;
use crate::version::Version;
#[instrument(level = "debug")]
async fn get_json(url: &Url) -> Result<serde_json::Value> {
let client = reqwest::Client::new();
let mut builder = client.get(url.as_str());
builder = builder.header(USER_AGENT, "reqwest");
builder = builder.header("Accept", "application/vnd.github.v3+json");
if let Ok(token) = std::env::var("PERSONAL_TOKEN") {
builder = builder.header("Authorization", format!("token {}", token));
}
let response = builder.send().await?;
if !response.status().is_success() {
return Err(Error::HttpError(url.clone(), response.status()));
}
Ok(response.json::<serde_json::Value>().await?)
}
#[instrument(level = "debug")]
fn parse_versions(data: serde_json::Value) -> Result<Vec<Version>> {
let re_ref = regex::Regex::new(r"^refs/tags/(?P<version>.+)$").unwrap();
data.as_array()
.ok_or_else(|| Error::JsonParsing("invalid type for layer object list".into()))?
.iter()
.map(|tag_obj| {
tag_obj
.as_object()
.ok_or_else(|| Error::JsonParsing("invalid type for tag object".into()))?
.get("ref")
.ok_or_else(|| Error::JsonParsing("ref field not found in tag object".into()))
.map(|ref_value| {
let version_str = ref_value.as_str().ok_or_else(|| {
Error::JsonParsing("invalid type for ref field in tag object".into())
})?;
let m = re_ref.captures(version_str).ok_or_else(|| {
Error::JsonParsing(format!(
"could not match github ref {} to tag regex",
version_str
))
})?;
let version_str = m.name("version").unwrap().as_str();
Version::new(version_str)
.ok_or_else(|| Error::VersionParsing(version_str.into()))
})?
})
.collect::<Result<Vec<Version>>>()
}
#[instrument(level = "debug")]
pub async fn get_versions(url: &Url) -> Result<Vec<Version>> {
let data = get_json(url).await?;
let versions = parse_versions(data)?;
Ok(versions)
}
#[test]
fn test_docker_parse_versions() -> Result<()> {
let json_str = r#"
[
{
"ref": "refs/tags/v0.1",
"node_id": "REF_kwDOHcsoLq5yZWZzL3RhZ3MvdjAuMQ",
"url": "https://api.github.com/repos/lpenz/ghworkflow-rust/git/refs/tags/v0.1",
"object": {
"sha": "ca550057e88e5885030e756b90bd040ad7840cee",
"type": "commit",
"url": "https://api.github.com/repos/lpenz/ghworkflow-rust/git/commits/ca550057e88e5885030e756b90bd040ad7840cee"
}
},
{
"ref": "refs/tags/0.2",
"node_id": "REF_kwDOHcsoLq5yZWZzL3RhZ3MvdjAuMg",
"url": "https://api.github.com/repos/lpenz/ghworkflow-rust/git/refs/tags/v0.2",
"object": {
"sha": "2b80e7d13e4b1738a17887b4d66143433267cea6",
"type": "commit",
"url": "https://api.github.com/repos/lpenz/ghworkflow-rust/git/commits/2b80e7d13e4b1738a17887b4d66143433267cea6"
}
},
{
"ref": "refs/tags/latest",
"node_id": "REF_kwDOHcsoLq5yZWZzL3RhZ3MvdjAuMw",
"url": "https://api.github.com/repos/lpenz/ghworkflow-rust/git/refs/tags/v0.3",
"object": {
"sha": "c7d367f5f10a2605aa43a540f9f88177d5fa12ac",
"type": "commit",
"url": "https://api.github.com/repos/lpenz/ghworkflow-rust/git/commits/c7d367f5f10a2605aa43a540f9f88177d5fa12ac"
}
},
{
"ref": "refs/tags/v0.4",
"node_id": "REF_kwDOHcsoLq5yZWZzL3RhZ3MvdjAuNA",
"url": "https://api.github.com/repos/lpenz/ghworkflow-rust/git/refs/tags/v0.4",
"object": {
"sha": "04bb04c23563d3302fe6ca0c2b832e9e67c47d58",
"type": "commit",
"url": "https://api.github.com/repos/lpenz/ghworkflow-rust/git/commits/04bb04c23563d3302fe6ca0c2b832e9e67c47d58"
}
}
]
"#;
let json_value: serde_json::Value = serde_json::from_str(json_str)?;
let mut versions = parse_versions(json_value)?.into_iter().collect::<Vec<_>>();
versions.sort();
let versions = versions
.into_iter()
.map(|v| format!("{}", v))
.collect::<Vec<_>>();
assert_eq!(versions, ["latest", "v0.1", "0.2", "v0.4"]);
Ok(())
}