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|
use anyhow::{bail, Context};
use rayon::slice::ParallelSliceMut;
use serde::Deserialize;
use std::{collections::HashMap, fmt};
use url::Url;
pub(super) fn packages(content: &str) -> anyhow::Result<Vec<Package>> {
let lockfile: Lockfile = serde_json::from_str(content)?;
let mut packages = match lockfile.version {
1 => {
let initial_url = get_initial_url()?;
lockfile
.dependencies
.map(|p| to_new_packages(p, &initial_url))
.transpose()?
}
2 | 3 => lockfile.packages.map(|pkgs| {
pkgs.into_iter()
.filter(|(n, p)| !n.is_empty() && matches!(p.resolved, Some(UrlOrString::Url(_))))
.map(|(n, p)| Package { name: Some(n), ..p })
.collect()
}),
_ => bail!(
"We don't support lockfile version {}, please file an issue.",
lockfile.version
),
}
.expect("lockfile should have packages");
packages.par_sort_by(|x, y| {
x.resolved
.partial_cmp(&y.resolved)
.expect("resolved should be comparable")
});
packages.dedup_by(|x, y| x.resolved == y.resolved);
Ok(packages)
}
#[derive(Deserialize)]
struct Lockfile {
#[serde(rename = "lockfileVersion")]
version: u8,
dependencies: Option<HashMap<String, OldPackage>>,
packages: Option<HashMap<String, Package>>,
}
#[derive(Deserialize)]
struct OldPackage {
version: UrlOrString,
#[serde(default)]
bundled: bool,
resolved: Option<UrlOrString>,
integrity: Option<String>,
dependencies: Option<HashMap<String, OldPackage>>,
}
#[derive(Debug, Deserialize, PartialEq, Eq)]
pub(super) struct Package {
#[serde(default)]
pub(super) name: Option<String>,
pub(super) resolved: Option<UrlOrString>,
pub(super) integrity: Option<String>,
}
#[derive(Debug, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
#[serde(untagged)]
pub(super) enum UrlOrString {
Url(Url),
String(String),
}
impl fmt::Display for UrlOrString {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
UrlOrString::Url(url) => url.fmt(f),
UrlOrString::String(string) => string.fmt(f),
}
}
}
#[allow(clippy::case_sensitive_file_extension_comparisons)]
fn to_new_packages(
old_packages: HashMap<String, OldPackage>,
initial_url: &Url,
) -> anyhow::Result<Vec<Package>> {
let mut new = Vec::new();
for (name, mut package) in old_packages {
// In some cases, a bundled dependency happens to have the same version as a non-bundled one, causing
// the bundled one without a URL to override the entry for the non-bundled instance, which prevents the
// dependency from being downloaded.
if package.bundled {
continue;
}
if let UrlOrString::Url(v) = &package.version {
for (scheme, host) in [
("github", "github.com"),
("bitbucket", "bitbucket.org"),
("gitlab", "gitlab.com"),
] {
if v.scheme() == scheme {
package.version = {
let mut new_url = initial_url.clone();
new_url.set_host(Some(host))?;
if v.path().ends_with(".git") {
new_url.set_path(v.path());
} else {
new_url.set_path(&format!("{}.git", v.path()));
}
new_url.set_fragment(v.fragment());
UrlOrString::Url(new_url)
};
break;
}
}
}
new.push(Package {
name: Some(name),
resolved: if matches!(package.version, UrlOrString::Url(_)) {
Some(package.version)
} else {
package.resolved
},
integrity: package.integrity,
});
if let Some(dependencies) = package.dependencies {
new.append(&mut to_new_packages(dependencies, initial_url)?);
}
}
Ok(new)
}
fn get_initial_url() -> anyhow::Result<Url> {
Url::parse("git+ssh://git@a.b").context("initial url should be valid")
}
#[cfg(test)]
mod tests {
use super::{get_initial_url, to_new_packages, OldPackage, Package, UrlOrString};
use std::collections::HashMap;
use url::Url;
#[test]
fn git_shorthand_v1() -> anyhow::Result<()> {
let old = {
let mut o = HashMap::new();
o.insert(
String::from("sqlite3"),
OldPackage {
version: UrlOrString::Url(
Url::parse(
"github:mapbox/node-sqlite3#593c9d498be2510d286349134537e3bf89401c4a",
)
.unwrap(),
),
bundled: false,
resolved: None,
integrity: None,
dependencies: None,
},
);
o
};
let initial_url = get_initial_url()?;
let new = to_new_packages(old, &initial_url)?;
assert_eq!(new.len(), 1, "new packages map should contain 1 value");
assert_eq!(new[0], Package {
name: Some(String::from("sqlite3")),
resolved: Some(UrlOrString::Url(Url::parse("git+ssh://git@github.com/mapbox/node-sqlite3.git#593c9d498be2510d286349134537e3bf89401c4a").unwrap())),
integrity: None
});
Ok(())
}
}
|
