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Use zip archives for company export

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Co-Authored-By: Paperclip <noreply@paperclip.ing>
This commit is contained in:
Dotta
2026-03-16 08:54:50 -05:00
parent b116e04894
commit 617aeaae0e
3 changed files with 193 additions and 67 deletions
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76
ui/src/pages/CompanyExport.tsx
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@@ -10,6 +10,7 @@ import { EmptyState } from "../components/EmptyState";
import { PageSkeleton } from "../components/PageSkeleton";
import { MarkdownBody } from "../components/MarkdownBody";
import { cn } from "../lib/utils";
import { createZipArchive } from "../lib/zip";
import {
ChevronDown,
ChevronRight,
@@ -329,66 +330,7 @@ function paginateTaskNodes(
return { nodes: result, totalTaskChildren, visibleTaskChildren };
}
// ── Tar helpers (reused from CompanySettings) ─────────────────────────
function createTarArchive(files: Record<string, string>, rootPath: string): Uint8Array {
const encoder = new TextEncoder();
const chunks: Uint8Array[] = [];
for (const [relativePath, contents] of Object.entries(files)) {
const tarPath = `${rootPath}/${relativePath}`.replace(/\\/g, "/");
const body = encoder.encode(contents);
chunks.push(buildTarHeader(tarPath, body.length));
chunks.push(body);
const remainder = body.length % 512;
if (remainder > 0) chunks.push(new Uint8Array(512 - remainder));
}
chunks.push(new Uint8Array(1024));
const totalLength = chunks.reduce((sum, c) => sum + c.length, 0);
const archive = new Uint8Array(totalLength);
let offset = 0;
for (const chunk of chunks) {
archive.set(chunk, offset);
offset += chunk.length;
}
return archive;
}
function buildTarHeader(pathname: string, size: number): Uint8Array {
const header = new Uint8Array(512);
writeTarString(header, 0, 100, pathname);
writeTarOctal(header, 100, 8, 0o644);
writeTarOctal(header, 108, 8, 0);
writeTarOctal(header, 116, 8, 0);
writeTarOctal(header, 124, 12, size);
writeTarOctal(header, 136, 12, Math.floor(Date.now() / 1000));
for (let i = 148; i < 156; i++) header[i] = 32;
header[156] = "0".charCodeAt(0);
writeTarString(header, 257, 6, "ustar");
writeTarString(header, 263, 2, "00");
const checksum = header.reduce((sum, byte) => sum + byte, 0);
writeTarChecksum(header, checksum);
return header;
}
function writeTarString(target: Uint8Array, offset: number, length: number, value: string) {
const encoded = new TextEncoder().encode(value);
target.set(encoded.slice(0, length), offset);
}
function writeTarOctal(target: Uint8Array, offset: number, length: number, value: number) {
const stringValue = value.toString(8).padStart(length - 1, "0");
writeTarString(target, offset, length - 1, stringValue);
target[offset + length - 1] = 0;
}
function writeTarChecksum(target: Uint8Array, checksum: number) {
const stringValue = checksum.toString(8).padStart(6, "0");
writeTarString(target, 148, 6, stringValue);
target[154] = 0;
target[155] = 32;
}
function downloadTar(
function downloadZip(
exported: CompanyPortabilityExportResult,
selectedFiles: Set<string>,
effectiveFiles: Record<string, string>,
@@ -397,14 +339,14 @@ function downloadTar(
for (const [path] of Object.entries(exported.files)) {
if (selectedFiles.has(path)) filteredFiles[path] = effectiveFiles[path] ?? exported.files[path];
}
const tarBytes = createTarArchive(filteredFiles, exported.rootPath);
const tarBuffer = new ArrayBuffer(tarBytes.byteLength);
new Uint8Array(tarBuffer).set(tarBytes);
const blob = new Blob([tarBuffer], { type: "application/x-tar" });
const zipBytes = createZipArchive(filteredFiles, exported.rootPath);
const zipBuffer = new ArrayBuffer(zipBytes.byteLength);
new Uint8Array(zipBuffer).set(zipBytes);
const blob = new Blob([zipBuffer], { type: "application/zip" });
const url = URL.createObjectURL(blob);
const anchor = document.createElement("a");
anchor.href = url;
anchor.download = `${exported.rootPath}.tar`;
anchor.download = `${exported.rootPath}.zip`;
document.body.appendChild(anchor);
anchor.click();
anchor.remove();
@@ -893,11 +835,11 @@ export function CompanyExport() {
function handleDownload() {
if (!exportData) return;
downloadTar(exportData, checkedFiles, effectiveFiles);
downloadZip(exportData, checkedFiles, effectiveFiles);
pushToast({
tone: "success",
title: "Export downloaded",
body: `${selectedCount} file${selectedCount === 1 ? "" : "s"} exported as ${exportData.rootPath}.tar`,
body: `${selectedCount} file${selectedCount === 1 ? "" : "s"} exported as ${exportData.rootPath}.zip`,
});
}