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fix: workspaces run at root #175

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fix: workspaces run at root #175

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reggi
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@reggi reggi commented Oct 9, 2024

I was looking into npm/cli#7563 where npm run -w packages/workspace doesn't work when the cwd is root / (docker issue).

Turns out it's because this returns false here https://github.com/npm/map-workspaces/blob/main/lib/index.js#L128

minimatch('/packages/workspace','packages/workspace', { partial: true, windowsPathsNoEscape: true })

I wish we could catch these. It is not possible to test this kind of code that uses cwd /.

@reggi reggi requested a review from a team as a code owner October 9, 2024 14:13
@wraithgar
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I wish we could catch these. It is not possible to test this kind of code that uses cwd /.

We don't "support" running out of root, and there are other issues where we've said that the kinds of bugs folks have from doing so won't be fixed. Running from / is a best-effort deal in npm, and it's possible we need better docs explaining this.

* it's not feasible to test the codepath where cwd is root `/`
* tap doesn't support it and an attempt with mock-fs broke nyc
*/
if (sep[0] === '') {
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This will stream the leading slash off all globs, won't it?

@@ -125,7 +139,7 @@ async function mapWorkspaces (opts = {}) {
const orderedMatches = []
for (const pattern of patterns) {
orderedMatches.push(...matches.filter((m) => {
return minimatch(m, pattern, { partial: true, windowsPathsNoEscape: true })
return minimatch(removeRootPath(m), pattern, { partial: true, windowsPathsNoEscape: true })
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If we filter these out of the matches we don't have to call this new function. every time for every pattern.

A .map in line 135 seems appropriate, no?

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