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Fix: Fix error reading matches of null when install dependencies #7588

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Fix: Fix error reading matches of null when install dependencies #7588

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eb982f4
fix: add null check for link's target when calling matches to dedupe …
GiveMeSomething Jun 5, 2024
2ab308c
chore: add test to simulate null target link
GiveMeSomething Jun 16, 2024
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8 changes: 6 additions & 2 deletions workspaces/arborist/lib/node.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1113,8 +1113,12 @@ class Node {
}

// if they're links, they match if the targets match
if (this.isLink) {
return node.isLink && this.target.matches(node.target)
if (node.isLink) {
// Linked to nothing, cannot matches
if (!this.target || !node.target) {
return false;
}
return this.target.matches(node.target);
}

// if they're two project root nodes, they're different if the paths differ
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8 changes: 8 additions & 0 deletions workspaces/arborist/test/node.js
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Expand Up @@ -8,6 +8,7 @@ const { resolve } = require('node:path')
const treeCheck = require('../lib/tree-check.js')

const { normalizePath, normalizePaths } = require('./fixtures/utils.js')
const { realpath } = require('node:fs')

t.cleanSnapshot = str =>
str.split(process.cwd()).join('{CWD}')
Expand Down Expand Up @@ -1548,6 +1549,13 @@ t.test('detect that two nodes are the same thing', async t => {
const b = new Node({ parent: a, pkg: pkgb })
check(a, b, false, 'name/version mismatch, if no resolved/integrity')
}

{
const root = new Node({ path: '/x' })
const a = new Link({ root, path: '/a', realpath: '/a', target: null })
const b = new Link({ root, path: '/b', realpath: '/b', target: null })
check(a, b, false, 'links does not match if target to null')
}
})

t.test('node.satisfies(requested)', t => {
Expand Down