mono/packages/fs/dist/utils/tree_walker.js
2025-03-21 00:53:11 +01:00

101 lines
8.0 KiB
JavaScript

import { Readable } from 'node:stream';
import * as pathUtil from 'node:path';
import { sync as inspectSync, async as inspectASync } from '../inspect.js';
import { ENodeType } from '../interfaces.js';
import { sync as listSync, async as listASync } from '../list.js';
// ---------------------------------------------------------
// SYNC
// ---------------------------------------------------------
export function sync(path, options, callback, currentLevel) {
const item = inspectSync(path, options.inspectOptions);
if (options.maxLevelsDeep === undefined) {
options.maxLevelsDeep = Infinity;
}
if (currentLevel === undefined) {
currentLevel = 0;
}
let children = [];
const hasChildren = item && item.type === ENodeType.DIR && currentLevel < options.maxLevelsDeep;
if (hasChildren) {
children = listSync(path);
}
callback(path, item);
if (hasChildren) {
children.forEach(child => sync(path + pathUtil.sep + child, options, callback, currentLevel + 1));
}
}
export function stream(path, options) {
const rs = new Readable({ objectMode: true });
let nextTreeNode = {
path: path,
parent: undefined,
level: 0
};
let running = false;
let readSome;
const error = (err) => {
rs.emit('error', err);
};
const findNextUnprocessedNode = (node) => {
if (node.nextSibling) {
return node.nextSibling;
}
else if (node.parent) {
return findNextUnprocessedNode(node.parent);
}
return undefined;
};
const pushAndContinueMaybe = (data) => {
const theyWantMore = rs.push(data);
running = false;
if (!nextTreeNode) {
// Previous was the last node. The job is done.
rs.push(null);
}
else if (theyWantMore) {
readSome();
}
};
if (options.maxLevelsDeep === undefined) {
options.maxLevelsDeep = Infinity;
}
readSome = () => {
const theNode = nextTreeNode;
running = true;
inspectASync(theNode.path, options.inspectOptions)
.then((inspected) => {
theNode.inspected = inspected;
if (inspected && inspected.type === ENodeType.DIR && theNode.level < options.maxLevelsDeep) {
listASync(theNode.path)
.then((childrenNames) => {
const children = childrenNames.map((name) => {
return {
name: name,
path: theNode.path + pathUtil.sep + name,
parent: theNode,
level: theNode.level + 1
};
});
children.forEach((child, index) => {
child.nextSibling = children[index + 1];
});
nextTreeNode = children[0] || findNextUnprocessedNode(theNode);
pushAndContinueMaybe({ path: theNode.path, item: inspected });
})
.catch(error);
}
else {
nextTreeNode = findNextUnprocessedNode(theNode);
pushAndContinueMaybe({ path: theNode.path, item: inspected });
}
})
.catch(error);
};
rs['_read'] = () => {
if (!running) {
readSome();
}
};
return rs;
}
//# sourceMappingURL=data:application/json;base64,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