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Easily make a virtual filesystem from a directory.
See some examples of what a vfs module looks like here
$ make-vfs --help
Options:
--help Show help [boolean]
--version Show version number [boolean]
--dir The directory to load files from [string]
--extensions Valid extensions to write into vfs module [string]
--outfile The output vfs module file e.g. vfs.ts or migrations.ts
[string]
--no-import-ext Do not add the extension to the import path [boolean]
--content-format The format to store files in the vfs module.
[string] [choices: "buffer", "string", "import-star", "import-default",
"require"] [default: "buffer"]
Examples:
make-vfs ./migrations --extensions sql Put all your migrations into a
--content-format=string ./migrations.ts typescript module
make-vfs ./routes --extensions ts,js Put all your filesystem routes into
./routes.generated.ts a typescript module
--content-format=import-default
--no-import-ext
A common use-case for make-vfs
is to statically bundle all the routes in a directory so that
a server can be packaged without needing to do runtime filesystem operations.
To do this, you can add an npm script build:routes
that generates a static-routes.ts
file
that imports all your route files. The script can be defined as...
make-vfs --dir ./routes --content-format import-star --outfile static-routes.ts
It will generate something like:
import * as _api_dev_package_examples_create from "./../routes/api/dev_package_examples/create"
import * as _api_dev_package_examples_get from "./../routes/api/dev_package_examples/get"
import * as _api_health from "./../routes/api/health"
export default {
"api/dev_package_examples/create": _api_dev_package_examples_create,
"api/dev_package_examples/get": _api_dev_package_examples_get,
"api/health": _api_health
}
You can now use your routes statically, e.g. here's a simple web server using bun using the statically generated routes:
// server.ts
import staticRoutes from "./static-routes"
Bun.serve({
fetch(req) {
const url = new URL(req.url);
const path = url.pathname.slice(1); // Remove leading slash
if (!(path in staticRoutes)) {
return new Response("Not found", { status: 404 });
}
const route = staticRoutes[path]
return route.default(req)
},
port: 3000,
})
[!NOTE] An example of a route file would be something like:
export default (req) => { return new Response("hello world!") }
You can also use make-vfs
to generate a Typescript file that contains buffers
or string representations of files such as images, markdown etc.
make-vfs --dir ./assets --content-format buffer --outfile bundle.js
# If you're only bundling text files, use the "string" output format so you don't
# need to deal with buffers!
make-vfs --dir ./assets --content-format string --outfile bundle.js
The output format for these is just an object a buffer
or string
as values (depending
on your selected --content-format
)
export default {
"assets/file.txt": "hello world!",
"assets/some-other-file.md": "#Some Other File\nContent goes here"
}
You can now import and use this file!
import {
getVirtualFilesystemModuleFromDirPath,
getVirtualFileSystemFromDirPath,
getMatchingFilePaths,
} from "./index"
const moduleString = await getVirtualFilesystemModuleFromDirPath({
dir: "./migrations",
extensions: ["sql"],
outfile: "./migrations.ts",
contentFormat: "string",
})
/*
export default {
"0001_initial_migration": "CREATE TABLE users (id serial primary key)",
"0002_add_email_to_users": "ALTER TABLE users ADD COLUMN email text",
}
*/
make-vfs
can be embedded as part of your build system. For example, maybe
you want to build an application with filesystem routes, after creating a new
route or as a prebuild step you would just run make-vfs ./src/routes ./src/routes.generated.ts
e.g. inside a package.json prebuild
script.
{
"scripts": {
"prebuild": "make-vfs --dir ./src/routes --content-format string --outfile asset-bundle.js"
}
}
FAQs
Easily make a virtual filesystem from a directory
The npm package make-vfs receives a total of 11,081 weekly downloads. As such, make-vfs popularity was classified as popular.
We found that make-vfs demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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