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one

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One is a React framework for web, iOS, and Android apps.

github.com/onejs/one

onejs/one

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{"version":3,"file":"opfs.js","names":[],"sources":["esm/platform/file-system/opfs.js"],"sourcesContent":["const folders = [\"documents\", \"cache\", \"applicationSupport\", \"temporary\"];\nconst directories = Object.fromEntries(\n folders.map((name) => [name, `opfs://one/${name}/`])\n);\nfunction parts(uri) {\n const url = new URL(uri);\n if (url.protocol !== \"opfs:\" || url.host !== \"one\" || url.search || url.hash) {\n throw new Error(\"FileSystem: expected an opfs://one/ URI\");\n }\n const names = url.pathname.split(\"/\").filter(Boolean).map(decodeURIComponent);\n if (!folders.includes(names[0]) || names.some((name) => name === \".\" || name === \"..\" || /[/\\\\\\0]/.test(name))) {\n throw new Error(\"FileSystem: invalid path\");\n }\n return names;\n}\nasync function root() {\n if (!navigator.storage?.getDirectory)\n throw new Error(\"FileSystem: Origin Private File System is unavailable\");\n const handle = await navigator.storage.getDirectory();\n for (const name of folders) await handle.getDirectoryHandle(name, { create: true });\n return handle;\n}\nasync function parent(names, create = false) {\n let handle = await root();\n for (const name of names.slice(0, -1))\n handle = await handle.getDirectoryHandle(name, { create });\n return handle;\n}\nasync function entry(names) {\n const handle = await parent(names);\n const name = names.at(-1);\n try {\n return await handle.getFileHandle(name);\n } catch (error) {\n if (error.name !== \"TypeMismatchError\") throw error;\n return handle.getDirectoryHandle(name);\n }\n}\nasync function info(uri) {\n const names = parts(uri);\n try {\n const handle = await entry(names);\n if (handle.kind === \"directory\") return { uri, exists: true, isDirectory: true };\n const file = await handle.getFile();\n return {\n uri,\n exists: true,\n isDirectory: false,\n size: file.size,\n modifiedAt: file.lastModified\n };\n } catch (error) {\n if (error.name !== \"NotFoundError\") throw error;\n return { uri, exists: false, isDirectory: false };\n }\n}\nasync function write(handle, data) {\n const writable = await handle.createWritable();\n try {\n await writable.write(data);\n await writable.close();\n } catch (error) {\n await writable.abort().catch(() => {\n });\n throw error;\n }\n}\nasync function copyEntry(source, target, name) {\n if (source.kind === \"file\") {\n await write(\n await target.getFileHandle(name, { create: true }),\n await source.getFile()\n );\n } else {\n const directory = await target.getDirectoryHandle(name, { create: true });\n for await (const [childName, child] of source.entries())\n await copyEntry(child, directory, childName);\n }\n}\nasync function transfer(fromUri, toUri, move) {\n const from = parts(fromUri), to = parts(toUri);\n if (move && from.length === 1)\n throw new Error(\"FileSystem: app root directories are protected\");\n if (to.length <= from.length && to.every((name, i) => name === from[i]) || from.every((name, i) => name === to[i]))\n throw new Error(\"FileSystem: overlapping paths\");\n const source = await entry(from);\n if ((await info(toUri)).exists)\n throw new Error(\"FileSystem: destination already exists\");\n const destination = await parent(to);\n try {\n await copyEntry(source, destination, to.at(-1));\n } catch (error) {\n await destination.removeEntry(to.at(-1), { recursive: true }).catch(() => {\n });\n throw error;\n }\n if (move) await (await parent(from)).removeEntry(from.at(-1), { recursive: true });\n}\nlet tail = Promise.resolve();\nfunction serial(work) {\n const next = tail.then(work);\n tail = next.catch(() => {\n });\n return next;\n}\nexport {\n directories,\n entry,\n folders,\n info,\n parent,\n parts,\n root,\n serial,\n transfer,\n write\n};\n//# 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