First Commit
This commit is contained in:
user
commit
e21a9fad3f
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@ -0,0 +1,2 @@
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|||
[*]
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indent_size = 3
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@ -0,0 +1 @@
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node_modules/
|
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|
|
@ -0,0 +1,19 @@
|
|||
{
|
||||
"name": "simplevsc",
|
||||
"version": "1.0.0",
|
||||
"description": "",
|
||||
"main": "index.js",
|
||||
"scripts": {
|
||||
"test": "echo \"Error: no test specified\" && exit 1"
|
||||
},
|
||||
"keywords": [],
|
||||
"author": "",
|
||||
"license": "ISC",
|
||||
"devDependencies": {
|
||||
"ts-node": "^10.2.0",
|
||||
"typescript": "^4.3.5"
|
||||
},
|
||||
"dependencies": {
|
||||
"jssha": "^3.2.0"
|
||||
}
|
||||
}
|
||||
|
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@ -0,0 +1,116 @@
|
|||
lockfileVersion: 5.3
|
||||
|
||||
specifiers:
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||||
jssha: ^3.2.0
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||||
ts-node: ^10.2.0
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||||
typescript: ^4.3.5
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||||
|
||||
dependencies:
|
||||
jssha: 3.2.0
|
||||
|
||||
devDependencies:
|
||||
ts-node: 10.2.0_typescript@4.3.5
|
||||
typescript: 4.3.5
|
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packages:
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||||
engines: {node: '>= 12'}
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dev: true
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||||
engines: {node: '>=12'}
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dependencies:
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||||
'@cspotcode/source-map-consumer': 0.8.0
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dev: true
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dev: true
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dev: true
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dev: true
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dev: true
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engines: {node: '>=0.4.0'}
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dev: true
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/acorn/8.4.1:
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resolution: {integrity: sha512-asabaBSkEKosYKMITunzX177CXxQ4Q8BSSzMTKD+FefUhipQC70gfW5SiUDhYQ3vk8G+81HqQk7Fv9OXwwn9KA==}
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engines: {node: '>=0.4.0'}
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hasBin: true
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dev: true
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dev: true
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engines: {node: '>=0.3.1'}
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dev: true
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engines: {node: '>=12.0.0'}
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||||
hasBin: true
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||||
peerDependencies:
|
||||
'@swc/core': '>=1.2.50'
|
||||
'@swc/wasm': '>=1.2.50'
|
||||
'@types/node': '*'
|
||||
typescript: '>=2.7'
|
||||
peerDependenciesMeta:
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||||
'@swc/core':
|
||||
optional: true
|
||||
'@swc/wasm':
|
||||
optional: true
|
||||
dependencies:
|
||||
'@cspotcode/source-map-support': 0.6.1
|
||||
'@tsconfig/node10': 1.0.8
|
||||
'@tsconfig/node12': 1.0.9
|
||||
'@tsconfig/node14': 1.0.1
|
||||
'@tsconfig/node16': 1.0.2
|
||||
acorn: 8.4.1
|
||||
acorn-walk: 8.1.1
|
||||
arg: 4.1.3
|
||||
create-require: 1.1.1
|
||||
diff: 4.0.2
|
||||
make-error: 1.3.6
|
||||
typescript: 4.3.5
|
||||
yn: 3.1.1
|
||||
dev: true
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/typescript/4.3.5:
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resolution: {integrity: sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==}
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||||
engines: {node: '>=4.2.0'}
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||||
hasBin: true
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||||
dev: true
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||||
/yn/3.1.1:
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resolution: {integrity: sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q==}
|
||||
engines: {node: '>=6'}
|
||||
dev: true
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
// Pre-Init
|
||||
const LUT_HEX_4b = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'];
|
||||
const LUT_HEX_8b = new Array(0x100);
|
||||
for (let n = 0; n < 0x100; n++) {
|
||||
LUT_HEX_8b[n] = `${LUT_HEX_4b[(n >>> 4) & 0xF]}${LUT_HEX_4b[n & 0xF]}`;
|
||||
}
|
||||
// End Pre-Init
|
||||
export function toHex(buffer: Uint8Array): string {
|
||||
let out = '';
|
||||
for (let idx = 0, edx = buffer.length; idx < edx; idx++) {
|
||||
out += LUT_HEX_8b[buffer[idx]];
|
||||
}
|
||||
return out;
|
||||
}
|
||||
|
|
@ -0,0 +1,269 @@
|
|||
// Copyright Joyent, Inc. and other Node contributors.
|
||||
//
|
||||
// Permission is hereby granted, free of charge, to any person obtaining a
|
||||
// copy of this software and associated documentation files (the
|
||||
// "Software"), to deal in the Software without restriction, including
|
||||
// without limitation the rights to use, copy, modify, merge, publish,
|
||||
// distribute, sublicense, and/or sell copies of the Software, and to permit
|
||||
// persons to whom the Software is furnished to do so, subject to the
|
||||
// following conditions:
|
||||
//
|
||||
// The above copyright notice and this permission notice shall be included
|
||||
// in all copies or substantial portions of the Software.
|
||||
//
|
||||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
||||
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
|
||||
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
||||
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
||||
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
||||
// USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
|
||||
'use strict';
|
||||
|
||||
|
||||
|
||||
// resolves . and .. elements in a path array with directory names there
|
||||
// must be no slashes or device names (c:\) in the array
|
||||
// (so also no leading and trailing slashes - it does not distinguish
|
||||
// relative and absolute paths)
|
||||
function normalizeArray(parts, allowAboveRoot) {
|
||||
var res = [];
|
||||
for (var i = 0; i < parts.length; i++) {
|
||||
var p = parts[i];
|
||||
|
||||
// ignore empty parts
|
||||
if (!p || p === '.')
|
||||
continue;
|
||||
|
||||
if (p === '..') {
|
||||
if (res.length && res[res.length - 1] !== '..') {
|
||||
res.pop();
|
||||
} else if (allowAboveRoot) {
|
||||
res.push('..');
|
||||
}
|
||||
} else {
|
||||
res.push(p);
|
||||
}
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
// returns an array with empty elements removed from either end of the input
|
||||
// array or the original array if no elements need to be removed
|
||||
function trimArray(arr) {
|
||||
var lastIndex = arr.length - 1;
|
||||
var start = 0;
|
||||
for (; start <= lastIndex; start++) {
|
||||
if (arr[start])
|
||||
break;
|
||||
}
|
||||
|
||||
var end = lastIndex;
|
||||
for (; end >= 0; end--) {
|
||||
if (arr[end])
|
||||
break;
|
||||
}
|
||||
|
||||
if (start === 0 && end === lastIndex)
|
||||
return arr;
|
||||
if (start > end)
|
||||
return [];
|
||||
return arr.slice(start, end + 1);
|
||||
}
|
||||
|
||||
|
||||
// // Regex to split the tail part of the above into [*, dir, basename, ext]
|
||||
// const splitTailRe =
|
||||
// /^([\s\S]*?)((?:\.{1,2}|[^\\\/]+?|)(\.[^.\/\\]*|))(?:[\\\/]*)$/;
|
||||
|
||||
// function normalizeUNCRoot(device) {
|
||||
// return '\\\\' + device.replace(/^[\\\/]+/, '').replace(/[\\\/]+/g, '\\');
|
||||
// }
|
||||
|
||||
// Split a filename into [root, dir, basename, ext], unix version
|
||||
// 'root' is just a slash, or nothing.
|
||||
const splitPathRe =
|
||||
/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
|
||||
|
||||
|
||||
function posixSplitPath(filename) {
|
||||
return splitPathRe.exec(filename).slice(1);
|
||||
}
|
||||
|
||||
export class Posix {
|
||||
static readonly sep = '/';
|
||||
static readonly delimiter = ':';
|
||||
|
||||
static resolve(...paths: string[]) {
|
||||
var resolvedPath = '',
|
||||
resolvedAbsolute = false;
|
||||
|
||||
for (var i = paths.length - 1; i >= -1 && !resolvedAbsolute; i--) {
|
||||
var path = (i >= 0) ? paths[i] : "/";
|
||||
|
||||
// Skip empty and invalid entries
|
||||
if (typeof path !== "string") {
|
||||
throw new TypeError('Arguments to path.resolve must be strings');
|
||||
} else if (!path) {
|
||||
continue;
|
||||
}
|
||||
|
||||
resolvedPath = path + '/' + resolvedPath;
|
||||
resolvedAbsolute = path[0] === '/';
|
||||
}
|
||||
|
||||
// At this point the path should be resolved to a full absolute path, but
|
||||
// handle relative paths to be safe (might happen when process.cwd() fails)
|
||||
|
||||
// Normalize the path
|
||||
resolvedPath = normalizeArray(resolvedPath.split('/'),
|
||||
!resolvedAbsolute).join('/');
|
||||
|
||||
return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
|
||||
}
|
||||
|
||||
static normalize(path: string) {
|
||||
var isAbsolute = Posix.isAbsolute(path),
|
||||
trailingSlash = path && path[path.length - 1] === '/';
|
||||
|
||||
// Normalize the path
|
||||
path = normalizeArray(path.split('/'), !isAbsolute).join('/');
|
||||
|
||||
if (!path && !isAbsolute) {
|
||||
path = '.';
|
||||
}
|
||||
if (path && trailingSlash) {
|
||||
path += '/';
|
||||
}
|
||||
|
||||
return (isAbsolute ? '/' : '') + path;
|
||||
}
|
||||
|
||||
static join(...paths: string[]) {
|
||||
var path = '';
|
||||
for (var i = 0; i < arguments.length; i++) {
|
||||
var segment = arguments[i];
|
||||
if (typeof segment !== "string") {
|
||||
throw new TypeError('Arguments to path.join must be strings');
|
||||
}
|
||||
if (segment) {
|
||||
if (!path) {
|
||||
path += segment;
|
||||
} else {
|
||||
path += '/' + segment;
|
||||
}
|
||||
}
|
||||
}
|
||||
return Posix.normalize(path);
|
||||
}
|
||||
|
||||
static relative(from: string, to: string) {
|
||||
from = Posix.resolve(from).substr(1);
|
||||
to = Posix.resolve(to).substr(1);
|
||||
|
||||
var fromParts = trimArray(from.split('/'));
|
||||
var toParts = trimArray(to.split('/'));
|
||||
|
||||
var length = Math.min(fromParts.length, toParts.length);
|
||||
var samePartsLength = length;
|
||||
for (var i = 0; i < length; i++) {
|
||||
if (fromParts[i] !== toParts[i]) {
|
||||
samePartsLength = i;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
var outputParts = [];
|
||||
for (var i = samePartsLength; i < fromParts.length; i++) {
|
||||
outputParts.push('..');
|
||||
}
|
||||
|
||||
outputParts = outputParts.concat(toParts.slice(samePartsLength));
|
||||
|
||||
return outputParts.join('/');
|
||||
}
|
||||
|
||||
static dirname(path: string) {
|
||||
var result = posixSplitPath(path),
|
||||
root = result[0],
|
||||
dir = result[1];
|
||||
|
||||
if (!root && !dir) {
|
||||
// No dirname whatsoever
|
||||
return '.';
|
||||
}
|
||||
|
||||
if (dir) {
|
||||
// It has a dirname, strip trailing slash
|
||||
dir = dir.substr(0, dir.length - 1);
|
||||
}
|
||||
|
||||
return root + dir;
|
||||
}
|
||||
|
||||
static basename(path: string, ext?: string) {
|
||||
var f = posixSplitPath(path)[2];
|
||||
// TODO: make this comparison case-insensitive on windows?
|
||||
if (ext && f.substr(-1 * ext.length) === ext) {
|
||||
f = f.substr(0, f.length - ext.length);
|
||||
}
|
||||
return f;
|
||||
}
|
||||
|
||||
static extname(path: string) {
|
||||
return posixSplitPath(path)[3];
|
||||
}
|
||||
|
||||
static format(pathObject: any) {
|
||||
if (typeof pathObject !== "object") {
|
||||
throw new TypeError(
|
||||
"Parameter 'pathObject' must be an object, not " + typeof pathObject
|
||||
);
|
||||
}
|
||||
|
||||
var root = pathObject.root || '';
|
||||
|
||||
if (typeof root !== "string") {
|
||||
throw new TypeError(
|
||||
"'pathObject.root' must be a string or undefined, not " +
|
||||
typeof pathObject.root
|
||||
);
|
||||
}
|
||||
|
||||
var dir = pathObject.dir ? pathObject.dir + Posix.sep : '';
|
||||
var base = pathObject.base || '';
|
||||
return dir + base;
|
||||
}
|
||||
|
||||
static parse(pathString: string) {
|
||||
if (typeof pathString !== "string") {
|
||||
throw new TypeError(
|
||||
"Parameter 'pathString' must be a string, not " + typeof pathString
|
||||
);
|
||||
}
|
||||
var allParts = posixSplitPath(pathString);
|
||||
if (!allParts || allParts.length !== 4) {
|
||||
throw new TypeError("Invalid path '" + pathString + "'");
|
||||
}
|
||||
allParts[1] = allParts[1] || '';
|
||||
allParts[2] = allParts[2] || '';
|
||||
allParts[3] = allParts[3] || '';
|
||||
|
||||
return {
|
||||
root: allParts[0],
|
||||
dir: allParts[0] + allParts[1].slice(0, -1),
|
||||
base: allParts[2],
|
||||
ext: allParts[3],
|
||||
name: allParts[2].slice(0, allParts[2].length - allParts[3].length)
|
||||
};
|
||||
}
|
||||
|
||||
static isAbsolute(path: string) {
|
||||
return path.charAt(0) === '/';
|
||||
}
|
||||
};
|
||||
|
||||
export const Path = Posix;
|
||||
export default Path;
|
||||
|
|
@ -0,0 +1,196 @@
|
|||
import SHA from "jssha";
|
||||
import Path from "./helper/path";
|
||||
|
||||
export interface IDataStore {
|
||||
get(key: string): Promise<Uint8Array>;
|
||||
set(key: string, data: Uint8Array): Promise<void>;
|
||||
has(key: string): Promise<boolean>;
|
||||
}
|
||||
|
||||
|
||||
export type NodeType = "tree" | "blob";
|
||||
export type NodeHash = string;
|
||||
export type NodeFilename = string;
|
||||
export type TreeEntry = [NodeType, NodeHash, NodeFilename];
|
||||
|
||||
export type Commit = {
|
||||
root: string;
|
||||
before: string;
|
||||
date: Date;
|
||||
}
|
||||
|
||||
// TODOs:
|
||||
// - HEAD locks
|
||||
// - HEAD/Tree Cache
|
||||
// - Remote synchronisation
|
||||
// - Add DataStore Locking for access from multiple sources
|
||||
|
||||
export default class Repository {
|
||||
#store: IDataStore;
|
||||
#head_lock: any;
|
||||
|
||||
constructor(store: IDataStore) {
|
||||
this.#store = store;
|
||||
this.init();
|
||||
}
|
||||
|
||||
private sha1(data: Uint8Array) {
|
||||
const s = new SHA("SHA-1", "UINT8ARRAY");
|
||||
s.update(data)
|
||||
return s.getHash("HEX");
|
||||
}
|
||||
|
||||
private sha256(data: Uint8Array) {
|
||||
const s = new SHA("SHA3-256", "UINT8ARRAY");
|
||||
s.update(data)
|
||||
return s.getHash("HEX");
|
||||
}
|
||||
|
||||
private splitPath(path: string) {
|
||||
return Path.resolve(path).slice(1).split(Path.delimiter);
|
||||
}
|
||||
|
||||
private async writeObject(data: string, string: true): Promise<string>
|
||||
private async writeObject(data: Uint8Array, string?: false): Promise<string>
|
||||
private async writeObject(data: Uint8Array | string, string = false): Promise<string> {
|
||||
if (typeof data == "string") {
|
||||
data = new TextEncoder().encode(data);
|
||||
}
|
||||
const objectID = this.sha1(data);
|
||||
await this.#store.set("objects/" + objectID, data);
|
||||
return objectID
|
||||
}
|
||||
|
||||
private async hasObject(id: string): Promise<boolean> {
|
||||
return this.#store.has("objects/" + id);
|
||||
}
|
||||
|
||||
|
||||
private async readObject(id: string, string: true): Promise<string>
|
||||
private async readObject(id: string, string?: false): Promise<Uint8Array>
|
||||
private async readObject(id: string, string = false): Promise<Uint8Array | string> {
|
||||
let data = await this.#store.get("objects/" + id);
|
||||
if (string) {
|
||||
return new TextDecoder().decode(data);
|
||||
} else {
|
||||
return data;
|
||||
}
|
||||
}
|
||||
|
||||
async init() {
|
||||
|
||||
}
|
||||
|
||||
async read() {
|
||||
|
||||
}
|
||||
|
||||
async write(path: string, data: Uint8Array) {
|
||||
const parts = this.splitPath(path);
|
||||
|
||||
|
||||
const objectID = await this.writeObject(data);
|
||||
|
||||
const head = await this.readHead();
|
||||
// const file = parts[parts.length - 1];
|
||||
// const folders = parts.slice(0, parts.length - 1)
|
||||
|
||||
|
||||
const makeTree = async (treeID: string | undefined, parts: string[]) => {
|
||||
let tree: TreeEntry[];
|
||||
if (treeID) {
|
||||
tree = await this.readTree(treeID);
|
||||
} else {
|
||||
tree = [];
|
||||
}
|
||||
|
||||
const current = parts[0];
|
||||
|
||||
let existing = tree.findIndex(([, , name]) => name == current);
|
||||
|
||||
let entry: TreeEntry;
|
||||
|
||||
if (parts.length == 1) {
|
||||
entry = ["blob", objectID, current];
|
||||
} else {
|
||||
entry = ["tree", await makeTree(existing >= 0 ? tree[existing][1] : undefined, parts.slice(1)), current];
|
||||
}
|
||||
|
||||
if (existing >= 0) {
|
||||
let ex = tree[existing];
|
||||
if (parts.length == 1 && ex[0] == "tree")
|
||||
throw new Error("This change would overwrite a folder!");
|
||||
tree[existing] = entry;
|
||||
} else {
|
||||
tree.push(entry);
|
||||
}
|
||||
|
||||
|
||||
let treeString = tree.map(([type, hash, name]) => `${type} ${hash} ${name}`).join("\n");
|
||||
|
||||
let obj = this.writeObject(treeString, true);
|
||||
|
||||
let newTreeID = "";
|
||||
|
||||
|
||||
|
||||
return newTreeID;
|
||||
}
|
||||
|
||||
let newTree = makeTree(head?.root, parts);
|
||||
|
||||
}
|
||||
|
||||
async readTree(id: string): Promise<TreeEntry[]> {
|
||||
const tree = new TextDecoder().decode(await this.readObject(id));
|
||||
return tree.split("\n").map(e => {
|
||||
const entry = e.split(" ") as TreeEntry;
|
||||
const [type] = entry;
|
||||
|
||||
switch (type) {
|
||||
case "blob":
|
||||
case "tree":
|
||||
break
|
||||
default:
|
||||
throw new Error("Invalid tree type.") //Might be a newer version or so
|
||||
}
|
||||
|
||||
return entry;
|
||||
})
|
||||
}
|
||||
|
||||
async readCommit(id: string): Promise<Commit> {
|
||||
if (!await this.hasObject(id))
|
||||
throw new Error(`Commit with id ${id} not found!`);
|
||||
|
||||
const commitStr = new TextDecoder().decode(await this.readObject(id));
|
||||
|
||||
let commit: Commit = {} as any;
|
||||
for (const entry of commitStr.split("n")) {
|
||||
const [type, value] = entry.split(" ", 1);
|
||||
switch (type) {
|
||||
case "tree": // TODO: Simple validity checks
|
||||
commit.root = value;
|
||||
break;
|
||||
case "before": // TODO: Simple validity checks
|
||||
commit.before = value;
|
||||
case "date":
|
||||
commit.date = new Date(value)
|
||||
}
|
||||
}
|
||||
|
||||
if (!commit.root) {
|
||||
throw new Error("No tree defined in this commit!");
|
||||
}
|
||||
|
||||
return commit;
|
||||
}
|
||||
|
||||
async readHead(): Promise<Commit | undefined> {
|
||||
if (!await this.#store.has("HEAD"))
|
||||
return undefined;
|
||||
const head = new TextDecoder().decode(await this.#store.get("HEAD"));
|
||||
|
||||
return this.readCommit(head);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue