refactor: rimuove cache destinazione e forza rescansione completa

- elimina cache su disco in destination scanner
- rimuove integrazione cache da main process
- allinea messaggi progresso UI alla scansione completa
- aggiorna README con comportamento senza cache
This commit is contained in:
2026-03-16 16:27:55 +01:00
parent 65b1777a60
commit 9aec9d3a50
4 changed files with 5 additions and 181 deletions

View File

@@ -4,64 +4,12 @@ const { getCadInfo } = require('./router');
const CODE_FOLDER_REGEX = /^\d{3}$/;
const MAX_SCAN_DEPTH = 6;
const CACHE_FILENAME = 'dest-index.cache.json';
let _cacheDir = null;
function setCacheDir(dir) {
_cacheDir = dir;
}
function toCadKey(cadInfo) {
return String(cadInfo?.key || '').toLowerCase();
}
function getCacheFilePath() {
return _cacheDir ? path.join(_cacheDir, CACHE_FILENAME) : null;
}
// ── Cache su disco (solo folderIndex — struttura cartelle) ─────────────────
async function tryLoadFolderIndexCache(destinationRoot) {
const cacheFile = getCacheFilePath();
if (!cacheFile) return null;
try {
const raw = await fs.readJson(cacheFile);
if (raw?.destination !== destinationRoot) return null;
return { folderIndex: new Map(raw.folderIndex || []), savedAt: raw.savedAt };
} catch {
return null;
}
}
async function saveFolderIndexCache(destinationRoot, folderIndex) {
const cacheFile = getCacheFilePath();
if (!cacheFile) return;
try {
await fs.writeJson(cacheFile, {
destination: destinationRoot,
savedAt: new Date().toISOString(),
folderIndex: [...folderIndex.entries()],
});
} catch {
// cache non critica
}
}
async function clearCache() {
const cacheFile = getCacheFilePath();
if (!cacheFile) return;
try {
await fs.remove(cacheFile);
} catch {
// ignora
}
}
// ── Scansione completa (folderIndex + cadKeyIndex in un unico passaggio) ───
async function fullScan(destinationRoot, onProgress) {
async function buildDestinationIndexes(destinationRoot, onProgress) {
const folderIndex = new Map();
const cadKeyIndex = new Set();
@@ -148,117 +96,4 @@ async function fullScan(destinationRoot, onProgress) {
return { folderIndex, cadKeyIndex };
}
// ── Scansione veloce dei file (usa il folderIndex già noto dalla cache) ────
//
// Invece di traversare l'intero albero, legge direttamente SOLO le cartelle
// a 3 cifre già note. Questo riduce drasticamente le chiamate readdir su SMB.
async function scanCadKeysFromFolderIndex(folderIndex, onProgress) {
const cadKeyIndex = new Set();
const allFolderPaths = [...folderIndex.values()].flat();
const total = allFolderPaths.length;
let completed = 0;
await Promise.all(
allFolderPaths.map(async (folderPath) => {
for (const sub of ['A', 'M_B']) {
const subPath = path.join(folderPath, sub);
let entries;
try {
entries = await fs.readdir(subPath, { withFileTypes: true });
} catch {
continue;
}
for (const entry of entries) {
if (!entry.isFile()) continue;
const cadInfo = getCadInfo(entry.name);
if (cadInfo) {
cadKeyIndex.add(toCadKey(cadInfo));
}
}
}
completed += 1;
onProgress?.({ phase: 'index-dup', current: completed, total });
})
);
return cadKeyIndex;
}
// ── Entry point ────────────────────────────────────────────────────────────
async function isCacheStillValid(destinationRoot, cached) {
// Controlla le cartelle top-level E le cartelle a 3 cifre al loro interno.
// Costa 1 + N_top_level readdir — rileva nuove cartelle aggiunte da colleghi.
let currentEntries;
try {
currentEntries = await fs.readdir(destinationRoot, { withFileTypes: true });
} catch {
return false;
}
const currentDirNames = new Set(
currentEntries.filter((e) => e.isDirectory()).map((e) => e.name)
);
// Ricostruisce: topLevelDir → Set<group> dalla cache
const cachedGroupsByTopDir = new Map();
for (const [group, paths] of cached.folderIndex.entries()) {
for (const p of paths) {
const topDir = path.relative(destinationRoot, p).split(path.sep)[0];
if (!cachedGroupsByTopDir.has(topDir)) cachedGroupsByTopDir.set(topDir, new Set());
cachedGroupsByTopDir.get(topDir).add(group);
}
}
const cachedDirNames = new Set(cachedGroupsByTopDir.keys());
// Controlla top-level
for (const name of currentDirNames) {
if (!cachedDirNames.has(name)) return false;
}
for (const name of cachedDirNames) {
if (!currentDirNames.has(name)) return false;
}
// Controlla cartelle a 3 cifre dentro ogni top-level (solo nuove aggiunte)
for (const topDir of currentDirNames) {
let subEntries;
try {
subEntries = await fs.readdir(path.join(destinationRoot, topDir), { withFileTypes: true });
} catch {
return false;
}
const cachedGroups = cachedGroupsByTopDir.get(topDir) || new Set();
for (const e of subEntries) {
if (e.isDirectory() && CODE_FOLDER_REGEX.test(e.name) && !cachedGroups.has(e.name)) {
return false; // nuova cartella a 3 cifre rilevata
}
}
}
return true;
}
async function buildDestinationIndexes(destinationRoot, onProgress) {
if (!destinationRoot) {
return { folderIndex: new Map(), cadKeyIndex: new Set() };
}
const cached = await tryLoadFolderIndexCache(destinationRoot);
if (cached && (await isCacheStillValid(destinationRoot, cached))) {
// folderIndex dalla cache (istantaneo), cadKeyIndex sempre fresco
onProgress?.({ phase: 'index-cache', savedAt: cached.savedAt, total: cached.folderIndex.size });
const cadKeyIndex = await scanCadKeysFromFolderIndex(cached.folderIndex, onProgress);
return { folderIndex: cached.folderIndex, cadKeyIndex };
}
// Prima volta, cache invalidata o struttura cambiata: scansione completa
const result = await fullScan(destinationRoot, onProgress);
await saveFolderIndexCache(destinationRoot, result.folderIndex);
return result;
}
module.exports = { buildDestinationIndexes, setCacheDir, clearCache, toCadKey };
module.exports = { buildDestinationIndexes, toCadKey };