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fix: add shell: true on Windows for execFileSync calls #742

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fix: add shell: true on Windows for execFileSync calls #742

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5220036
fix: add `shell: true` on Windows for execFileSync calls
evil1morty Apr 1, 2026
ae574e6
style: break long execFileSync lines to fit printWidth: 100
evil1morty Apr 2, 2026
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24 changes: 20 additions & 4 deletions packages/vinext/src/cli.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -403,7 +403,11 @@ async function buildApp() {
const installCmd = detectPackageManager(process.cwd()).replace(/ -D$/, "");
const [pm, ...pmArgs] = installCmd.split(" ");
console.log(" Upgrading React for RSC compatibility...");
execFileSync(pm, [...pmArgs, ...reactUpgrade], { cwd: process.cwd(), stdio: "inherit" });
execFileSync(pm, [...pmArgs, ...reactUpgrade], {
cwd: process.cwd(),
stdio: "inherit",
shell: process.platform === "win32",
});
}
}

Expand Down Expand Up @@ -567,13 +571,25 @@ async function lint() {
try {
if (hasEslint && hasNextLintConfig) {
console.log(" Using eslint (with existing config)\n");
execFileSync("npx", ["eslint", "."], { cwd, stdio: "inherit" });
execFileSync("npx", ["eslint", "."], {
cwd,
stdio: "inherit",
shell: process.platform === "win32",
});
} else if (hasOxlint) {
console.log(" Using oxlint\n");
execFileSync("npx", ["oxlint", "."], { cwd, stdio: "inherit" });
execFileSync("npx", ["oxlint", "."], {
cwd,
stdio: "inherit",
shell: process.platform === "win32",
});
} else if (hasEslint) {
console.log(" Using eslint\n");
execFileSync("npx", ["eslint", "."], { cwd, stdio: "inherit" });
execFileSync("npx", ["eslint", "."], {
cwd,
stdio: "inherit",
shell: process.platform === "win32",
});
} else {
console.log(
" No linter found. Install eslint or oxlint:\n\n" +
Expand Down
11 changes: 10 additions & 1 deletion packages/vinext/src/deploy.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1059,6 +1059,7 @@ function installDeps(root: string, deps: MissingDep[]): void {
execFileSync(pm, [...pmArgs, ...depSpecs], {
cwd: root,
stdio: "inherit",
shell: process.platform === "win32",
});
}

Expand Down Expand Up @@ -1210,6 +1211,10 @@ function runWranglerDeploy(root: string, options: Pick<DeployOptions, "preview"
cwd: root,
stdio: "pipe",
encoding: "utf-8",
// On Windows, .bin/wrangler is a .cmd wrapper; execFileSync can't run
// it without a shell. Enabling shell only on win32 keeps the
// no-shell-injection guarantee on other platforms.
shell: process.platform === "win32",
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@ask-bonk ask-bonk bot Apr 1, 2026

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Nice — the comment here is clear and well-scoped. Just noting that the other comment a few lines below (line 1228: "Use execFileSync to avoid shell injection") is now slightly inaccurate on Windows. Consider updating that one too to acknowledge the platform split, since both comments describe the same call site.

};

const { args, env } = buildWranglerDeployArgs(options);
Expand Down Expand Up @@ -1275,7 +1280,11 @@ export async function deploy(options: DeployOptions): Promise<void> {
console.log(
` Upgrading ${reactUpgrade.map((d) => d.replace(/@latest$/, "")).join(", ")}...`,
);
execFileSync(pm, [...pmArgs, ...reactUpgrade], { cwd: root, stdio: "inherit" });
execFileSync(pm, [...pmArgs, ...reactUpgrade], {
cwd: root,
stdio: "inherit",
shell: process.platform === "win32",
});
}
}
const missingDeps = getMissingDeps(info);
Expand Down
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