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Check if path exists before returning from opendirSync #17846

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evanrittenhouse wants to merge 1 commit into from
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Check if path exists before returning from opendirSync #17846

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4 changes: 4 additions & 0 deletions src/js/node/fs.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1021,6 +1021,10 @@ function _toUnixTimestamp(time: any, name = "time") {
function opendirSync(path, options) {
// TODO: validatePath
// validateString(path, "path");
if (!fs.existsSync(path)) {

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@Jarred-Sumner Jarred-Sumner Mar 3, 2025

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accessSync won't error if it's not a directory

@paperclover paperclover Mar 3, 2025 •
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true. then instead, this PR should expose an opendir binding in src/bun.js/node/node_fs_binding.zig to fs.ts, and have a matching implementation function in src/bun.js/node/node_fs.zig. this function would return a directory file descriptor. Then, there can be internal variants of readdir that work on this file descriptor.

@evanrittenhouse evanrittenhouse Mar 9, 2025

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Thanks for the pointers. I figured this would involve some Zig bindings, but wanted to ensure that there wasn't anything in JS-land that I was missing. I'm starting to work on the bindings now, should hopefully have something up this week, time permitting

throw new Error("ENOENT");
}

return new Dir(1, path, options);
}

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8 changes: 8 additions & 0 deletions test/js/node/fs/fs.test.ts
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Expand Up @@ -19,6 +19,7 @@ import fs, {
mkdtempSync,
openAsBlob,
openSync,
opendirSync,
promises,
statfsSync,
statfs,
Expand Down Expand Up @@ -572,6 +573,13 @@ describe("copyFileSync", () => {
}
});

describe("opendirSync", () => {
it("should throw ENOENT on a nonexistent directory", () => {
const dirName = Math.random().toString(8);
expect(() => opendirSync(dirName)).toThrow("ENOENT");

@paperclover paperclover Mar 3, 2025

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.toThrow({ code: "ENOENT" })

})
});

describe("mkdirSync", () => {
it("should create a directory", () => {
const now = Date.now().toString();
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