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make sure patchFindDir works with Next.js 15 and add patching validation check #184

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merged 2 commits into from
Dec 17, 2024
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make sure patchFindDir works with Next.js 15 and add patching validation check #184

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make sure `patchFindDir` works with Next.js 15 and add patching valid…
dario-piotrowicz Dec 17, 2024
9d8ccd5
use named capturing groups in regex replacement
dario-piotrowicz Dec 17, 2024
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20 changes: 13 additions & 7 deletions packages/cloudflare/src/cli/build/patches/to-investigate/patch-find-dir.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -11,18 +11,24 @@ import { Config } from "../../../config";
*/
export function patchFindDir(code: string, config: Config): string {
console.log("# patchFindDir");
return code.replace(
"function findDir(dir, name) {",
`function findDir(dir, name) {
if (dir.endsWith(".next/server")) {
if (name === "app") {
const patchedCode = code.replace(
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Maybe add a comment here with the pre-15.1 code and 15.1 code

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are you sure? it feels a bit overkill to me here 😕

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It might help if we later need to convert the patch to AST but your call :)

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(and to be clear I meant fn signature, not the whole function)

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I'd leave it as is if it's ok by you 🙂

but if you do prefer a comment, could you please add a code suggestion here and I'd be happy to just go with whatever you'd fine useful here 🙂

/function findDir\((dir\d*), (name\d*)\) {/,
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`function findDir($1, $2) {
if ($1.endsWith(".next/server")) {
if ($2 === "app") {
return ${existsSync(`${join(config.paths.output.standaloneAppServer, "app")}`)};
}
if (name === "pages") {
if ($2 === "pages") {
return ${existsSync(`${join(config.paths.output.standaloneAppServer, "pages")}`)};
}
}
throw new Error("Unknown findDir call: " + dir + " " + name);
throw new Error("Unknown findDir call: " + $1 + " " + $2);
`
);

if (patchedCode === code) {
throw new Error("Patch `patchFindDir` not applied");
}

return patchedCode;
}
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