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use async_trait::async_trait;
use reqwest::header::USER_AGENT;
use tracing::instrument;
use crate::entity::Entity;
use crate::error::Error;
use crate::error::Result;
use crate::updater;
use crate::version::Version;
#[derive(Debug)]
pub struct Github {
re_ref: regex::Regex,
}
impl Default for Github {
fn default() -> Github {
Github {
re_ref: regex::Regex::new(r"^refs/tags/(?P<version>.+)$").unwrap(),
}
}
}
#[async_trait]
impl updater::Updater for Github {
fn url(&self, resource: &str) -> Option<String> {
url(resource)
}
async fn get_versions(&self, url: &str) -> Result<Vec<Version>> {
get_versions(self, url).await
}
fn updated_line(&self, entity: &Entity) -> Option<String> {
let path = entity.resource.strip_prefix("github://")?;
entity.latest.as_ref().map(|v| format!("{}@{}", path, v))
}
}
#[instrument(level = "debug")]
pub fn url(resource: &str) -> Option<String> {
resource.strip_prefix("github://").map(|path| {
format!(
"https://api.github.com/repos/{}/git/matching-refs/tags",
path
)
})
}
#[instrument(level = "debug")]
async fn get_json(url: &str) -> Result<serde_json::Value> {
let client = reqwest::Client::new();
let mut builder = client.get(url);
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.into(), response.status()));
}
Ok(response.json::<serde_json::Value>().await?)
}
#[instrument(level = "debug")]
fn parse_versions(github: &Github, data: serde_json::Value) -> Result<Vec<Version>> {
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 = github.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(github: &Github, url: &str) -> Result<Vec<Version>> {
let data = get_json(url).await?;
let versions = parse_versions(github, 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 gh = Github::default();
let mut versions = parse_versions(&gh, 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(())
}
