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fix: normalize Windows extended-length paths in import ledger lookup (#513) #551

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fix: normalize Windows extended-length paths in import ledger lookup (#513) #551

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20 changes: 19 additions & 1 deletion plugins/codex/scripts/lib/codex.mjs
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Original file line number Diff line number Diff line change
Expand Up @@ -658,19 +658,37 @@ function sourceContentSha256(sourcePath) {
return crypto.createHash("sha256").update(fs.readFileSync(sourcePath)).digest("hex");
}

function normalizeLedgerPath(sourcePath) {
// On Windows, Codex records ledger paths with the \\?\ extended-length
// prefix (e.g. \\?\C:\Users\...), while fs.realpathSync returns the plain
// form. Strip the prefix (including the \\?\UNC\ variant) and compare
// case-insensitively so ledger records match realpath output.
let normalized = String(sourcePath);
if (process.platform === "win32") {
if (normalized.startsWith("\\\\?\\UNC\\")) {
normalized = `\\\\${normalized.slice(8)}`;
} else if (normalized.startsWith("\\\\?\\")) {
normalized = normalized.slice(4);
}
return normalized.toLowerCase();
}
return normalized;
}

function importedThreadIdForSource(sourcePath) {
const ledgerPath = path.join(resolveCodexHome(), "external_agent_session_imports.json");
if (!fs.existsSync(ledgerPath)) {
return null;
}
const ledger = readJsonFile(ledgerPath);
const canonicalSource = fs.realpathSync(sourcePath);
const normalizedSource = normalizeLedgerPath(canonicalSource);
const contentSha256 = sourceContentSha256(canonicalSource);
const records = Array.isArray(ledger?.records) ? ledger.records : [];
const match = records
.filter(
(record) =>
record?.source_path === canonicalSource &&
normalizeLedgerPath(record?.source_path) === normalizedSource &&
record?.content_sha256 === contentSha256 &&
typeof record?.imported_thread_id === "string"
)
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