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Support monorepo projects that use npm workspaces #266

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63 changes: 44 additions & 19 deletions src/dependencies.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -6,9 +6,17 @@ import type { PackageManager } from "./types.js";

const { valid } = semver;

type DependencyData = {
required?: { version?: string } | string;
version?: string;
resolved?: string;
dependencies?: ParsedDependency;
devDependencies?: ParsedDependency;
};

type ParsedDependency = Record<
string,
{ required?: { version?: string } | string; version?: string }
DependencyData
>;
type ParsedDependencies = Record<
"dependencies" | "devDependencies",
Expand Down Expand Up @@ -58,6 +66,19 @@ const getParsedDependencies = async (
}
});

const transformDependency = ([dependency, data]: [string, DependencyData]): [string, string] => {
return [
dependency,
data.version ??
(
(data.required as { version?: string })?.version ||
(data.required as string)
).replace(/[<=>^~]+/u, ""),
];
}

const isLocalDependency = (data: DependencyData) => data.resolved?.startsWith('file:');

export const getDependencies = async (
packageManager: PackageManager,
flags?: { all?: boolean },
Expand All @@ -70,22 +91,26 @@ export const getDependencies = async (
} as Record<PackageManager, string>
)[packageManager] ?? "npm ls --depth=0 --json --silent";

return getParsedDependencies(packageManager, cmd).then(
(json) =>
new Map(
Object.entries({
...json.dependencies,
...json.devDependencies,
})
.map(([dependency, data]) => [
dependency,
data.version ??
(
(data.required as { version?: string })?.version ||
(data.required as string)
).replace(/[<=>^~]+/u, ""),
])
.filter(([_, version]) => valid(version)) as [[string, string]],
),
);
const json = await getParsedDependencies(packageManager, cmd);

const dependencies = Object.entries({
...json.dependencies,
...json.devDependencies,
});

// Keep track of which dependencies are linked locally, ie: monorepos
const localDeps = new Map(dependencies.filter(([_, data]) => isLocalDependency(data)));

return new Map(dependencies
.flatMap(([dependency, data]) => {
if (isLocalDependency(data)) {
// This is a local package, recursively add its dependencies instead, but only up to 1 level deep
return Object.entries({ ...data.dependencies, ...data.devDependencies })
.map(transformDependency)
.filter(([depName]) => !localDeps.has(depName));
}
return [transformDependency([dependency, data])];
})
.filter(([_, version]) => valid(version)));
};