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Replace the temp lib to tmp #775

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Merged
merged 1 commit into from
Apr 4, 2019
Merged

Replace the temp lib to tmp #775

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53 changes: 34 additions & 19 deletions lib/stream/xlsx/workbook-reader.js
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ var events = require('events');
var Stream = require('stream');
var unzip = require('unzipper');
var Sax = require('sax');
var tmp = require('tmp');

var utils = require('../../utils/utils');
var FlowControl = require('../../utils/flow-control');
Expand All @@ -15,7 +16,7 @@ var WorkbookPropertiesManager = require('../../xlsx/xform/book/workbook-properti
var WorksheetReader = require('./worksheet-reader');
var HyperlinkReader = require('./hyperlink-reader');

var Temp = require('temp');
tmp.setGracefulCleanup();

var WorkbookReader = module.exports = function(options) {
this.options = options = options || {};
Expand All @@ -37,8 +38,11 @@ var WorkbookReader = module.exports = function(options) {
// end of stream check
this.atEnd = false;

Temp.track();
// worksheets, deferred for parsing after shared strings reading
this.waitingWorkSheets = [];

// callbacks for temp files cleanup
this.tempFileCleanupCallbacks = [];
};

utils.inherits(WorkbookReader, events.EventEmitter, {
Expand Down Expand Up @@ -94,9 +98,17 @@ utils.inherits(WorkbookReader, events.EventEmitter, {
if (this.sharedStrings) {
this._parseWorksheet(entry, sheetNo, options);
} else {
var stream = Temp.createWriteStream();
this.waitingWorkSheets.push({sheetNo: sheetNo, options: options, path: stream.path});
entry.pipe(stream);
// create temp file for each worksheet
tmp.file((err, path, fd, cleanupCallback) => {
if (err) throw err;

var tempStream = fs.createWriteStream(path);

this.waitingWorkSheets.push({sheetNo: sheetNo, options: options, path: path});
entry.pipe(tempStream);

this.tempFileCleanupCallbacks.push(cleanupCallback);
});
}
} else if (entry.path.match(/xl\/worksheets\/_rels\/sheet\d+[.]xml.rels/)) {
match = entry.path.match(/xl\/worksheets\/_rels\/sheet(\d+)[.]xml.rels/);
Expand All @@ -110,29 +122,32 @@ utils.inherits(WorkbookReader, events.EventEmitter, {
});

zip.on('close', () => {
var self = this;
if (this.waitingWorkSheets.length) {
var currentBook = 0;

var processBooks = function () {
var worksheetInfo = self.waitingWorkSheets[currentBook];
var processBooks = () => {
var worksheetInfo = this.waitingWorkSheets[currentBook];
var entry = fs.createReadStream(worksheetInfo.path);

var sheetNo = worksheetInfo.sheetNo;
var options = worksheetInfo.options;
var worksheet = self._parseWorksheet(entry, sheetNo, options);
var worksheet = this._parseWorksheet(entry, sheetNo, options);

worksheet.on('finished', function (node) {
worksheet.on('finished', (node) => {
++currentBook;
if (currentBook == self.waitingWorkSheets.length) {
Temp.cleanupSync();
// setImmediate(this.emit.bind(this), 'finished');

self.emit('end');
self.atEnd = true;
if (!self.readers) {
self.emit('finished');
}
if (currentBook === this.waitingWorkSheets.length) {
// temp files cleaning up
this.tempFileCleanupCallbacks.forEach(function (cb) {
cb();
});

this.tempFileCleanupCallbacks = [];

this.emit('end');
this.atEnd = true;
if (!this.readers) {
this.emit('finished');
}
} else {
setImmediate(processBooks);
}
Expand Down
2 changes: 1 addition & 1 deletion package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -66,7 +66,7 @@
"unzipper": "^0.9.7",
"promish": ">=5.0.2",
"sax": "^1.2.2",
"temp": "0.8.3"
"tmp": "^0.1.0"
},
"devDependencies": {
"babel-eslint": "^7.2.0",
Expand Down