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var JSZip = require("jszip");
exports.openArrayBuffer = openArrayBuffer;
exports.splitPath = splitPath;
exports.joinPath = joinPath;
function openArrayBuffer(arrayBuffer) {
return JSZip.loadAsync(arrayBuffer).then(function(zipFile) {
function exists(name) {
return zipFile.file(name) !== null;
}
function read(name, encoding) {
return zipFile.file(name).async("uint8array").then(function(array) {
var buffer = uint8ArrayToBuffer(array);
if (encoding) {
return buffer.toString(encoding);
} else {
return buffer;
}
});
}
function write(name, contents) {
zipFile.file(name, contents);
}
function toBuffer() {
return zipFile.generateAsync({type: "nodebuffer"});
}
return {
exists: exists,
read: read,
write: write,
toBuffer: toBuffer
};
});
}
function uint8ArrayToBuffer(array) {
if (Buffer.from && Buffer.from !== Uint8Array.from) {
return Buffer.from(array);
} else {
return new Buffer(array);
}
}
function splitPath(path) {
var lastIndex = path.lastIndexOf("/");
if (lastIndex === -1) {
return {dirname: "", basename: path};
} else {
return {
dirname: path.substring(0, lastIndex),
basename: path.substring(lastIndex + 1)
};
}
}
function joinPath() {
var nonEmptyPaths = Array.prototype.filter.call(arguments, function(path) {
return path;
});
var relevantPaths = [];
nonEmptyPaths.forEach(function(path) {
if (/^\//.test(path)) {
relevantPaths = [path];
} else {
relevantPaths.push(path);
}
});
return relevantPaths.join("/");
}
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