51 lines
1.2 KiB
JavaScript
51 lines
1.2 KiB
JavaScript
const Seven = require("node-7z");
|
|
const which = require('which');
|
|
const path = require("path");
|
|
const fs = require("fs");
|
|
|
|
let sevenBin = null;
|
|
|
|
try {
|
|
sevenBin = which.sync('7z')
|
|
} catch(e) {
|
|
sevenBin = require('7zip-bin').path7za
|
|
console.error("Couldn't find 7-zip installed. Using the 7zip-bin package, which uses an older version of 7-zip. Not all files may work properly.")
|
|
}
|
|
|
|
module.exports = {
|
|
readFileContents: function(archive, filepath, dir, cb) {
|
|
let stream = Seven.extract(archive, dir, {
|
|
recursive: true,
|
|
$cherryPick: filepath,
|
|
$bin: sevenBin
|
|
});
|
|
let fn = path.basename(filepath);
|
|
stream.on("end", ()=>{
|
|
cb(fs.readFileSync(`${dir}/${fn}`, {encoding: 'utf8'}))
|
|
});
|
|
},
|
|
extractSomeFiles: function(archive, list, dir, cb) {
|
|
let stream = Seven.extract(archive, dir, {
|
|
$cherryPick: list,
|
|
$bin: sevenBin
|
|
})
|
|
stream.on('end', ()=>{
|
|
cb()
|
|
})
|
|
},
|
|
listFileContents: function(archive, cb) {
|
|
let zip = Seven.list(archive, {
|
|
$bin: sevenBin,
|
|
alternateStreamExtract: true,
|
|
alternateStreamReplace: true,
|
|
});
|
|
let entries = [];
|
|
zip.on("data", (data) => {
|
|
entries.push(data);
|
|
});
|
|
zip.on("end", () => {
|
|
cb(entries);
|
|
});
|
|
},
|
|
};
|