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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
use anyhow::{anyhow, Result};
use futures::future::join_all;
use regex::Regex;
use serde_yaml::Value;
use std::collections::HashSet;
use std::io;
use std::path;
use tokio::io::AsyncReadExt;
use tokio::io::AsyncWriteExt;
use tracing::event;
use tracing::instrument;
use tracing::Level;
use crate::entity::Entity;
use crate::resolver;
use crate::version::Version;
#[derive(Debug)]
pub struct Workflow {
pub filename: path::PathBuf,
pub contents: String,
pub entities: HashSet<Entity>,
}
impl Workflow {
#[instrument(level="debug", fields(filename = ?filename.as_ref().display()))]
pub async fn new(filename: impl AsRef<path::Path>) -> Result<Workflow> {
let filename = filename.as_ref();
let mut file = tokio::fs::File::open(filename).await?;
let mut contents = String::new();
file.read_to_string(&mut contents).await?;
let entities = buf_parse(contents.as_bytes())?;
Ok(Workflow {
filename: filename.to_owned(),
contents,
entities,
})
}
#[instrument(level = "debug")]
pub async fn resolve_entities(&mut self, resolver: &resolver::Server) {
let entities = std::mem::take(&mut self.entities);
let resolve_entity_tasks = entities
.into_iter()
.map(|e| (e, resolver.new_client()))
.map(|(e, resolver_client)| async move { resolver_client.resolve_entity(e).await });
self.entities = join_all(resolve_entity_tasks)
.await
.into_iter()
.collect::<HashSet<_>>();
}
#[instrument(level = "debug")]
pub async fn update_file(&self) -> Result<bool> {
let mut contents = self.contents.clone();
for entity in &self.entities {
if let Some(updated_line) = &entity.updated_line {
contents = contents.replace(&entity.line, updated_line);
}
}
let updated = contents != self.contents;
if updated {
let mut file = tokio::fs::File::create(&self.filename).await?;
file.write_all(contents.as_bytes()).await?;
}
Ok(updated)
}
}
#[instrument(level = "debug")]
fn reference_parse_version(
re_docker: &Regex,
re_github: &Regex,
reference: &str,
) -> Option<(String, Version)> {
if let Some(m) = re_docker.captures(reference) {
return Some((
m.name("resource").unwrap().as_str().into(),
Version::new(m.name("version").unwrap().as_str())?,
));
}
if let Some(m) = re_github.captures(reference) {
return Some((
format!("github://{}", m.name("userrepo").unwrap().as_str()),
Version::new(m.name("version").unwrap().as_str())?,
));
}
None
}
#[instrument(level = "debug", skip(r))]
fn buf_parse(r: impl io::BufRead) -> Result<HashSet<Entity>> {
let data: serde_yaml::Mapping = serde_yaml::from_reader(r)?;
let jobs = data
.get(&Value::String("jobs".into()))
.ok_or_else(|| anyhow!("jobs entry not found"))?
.as_mapping()
.ok_or_else(|| anyhow!("invalid type for jobs entry"))?;
let mut ret = HashSet::default();
let re_docker = Regex::new(r"^(?P<resource>docker://[^:]+):(?P<version>[^:]+)$").unwrap();
let re_github = Regex::new(r"^(?P<userrepo>[^/]+/[^@]+)@(?P<version>[^@]+)$").unwrap();
for (_, job) in jobs {
if let Some(steps) = job.get(&Value::String("steps".into())) {
let steps = steps
.as_sequence()
.ok_or_else(|| anyhow!("invalid type for steps entry"))?;
for step in steps {
if let Some(uses) = step.get(&Value::String("uses".into())) {
let reference = uses
.as_str()
.ok_or_else(|| anyhow!("invalid type for uses entry"))?;
if let Some((resource, version)) =
reference_parse_version(&re_docker, &re_github, reference)
{
let entity = Entity {
line: reference.into(),
resource,
version,
..Default::default()
};
event!(Level::INFO, reference = reference, "parsed entity");
ret.insert(entity);
} else {
event!(Level::WARN, reference = reference, "entity not parsed");
}
}
}
}
}
Ok(ret)
}
#[test]
fn test_parse() -> Result<()> {
let s = r"
---
name: test
jobs:
omnilint:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- uses: docker://lpenz/omnilint:0.4
- run: ls
";
buf_parse(s.as_bytes())?;
Ok(())
}
