Utility code to support installing locally scoped and versioned development tools

Supported tools

The following tools can be installed with this system

Project setup

create a deno.json file in the root of your project:

{
    "lock": "./deno/deno.lock"
}

write a typescript file ./deno/local-setup.ts to specify the tools and versions you need. For example

import {
  packages,
  forPlatform,
  getHostPlatform,
  installTo
} from "https://deno.land/x/adllang_localsetup@v0.6/mod.ts";

const DENO = packages.deno("1.34.1");
const NODE = packages.nodejs("18.16.0");
const YARN = packages.yarn("1.22.19");
const ADL = packages.adl("1.1.12");

export async function main() {
  if (Deno.args.length != 1) {
    console.error("Usage: local-setup LOCALDIR");
    Deno.exit(1);
  }
  const localdir = Deno.args[0];

  const platform = getHostPlatform();

  const installs = [
    forPlatform(DENO, platform),
    forPlatform(NODE, platform),
    forPlatform(ADL, platform),
    YARN,
  ];

  await installTo(installs, localdir);
}

main()
  .catch((err) => {
    console.error("error in main", err);
  });

copy the wrapper shell script to ./deno/local-setup.sh

Add .local to the project gitignore

For a more complex example see the included local-setup.ts. This included;

a locally defined package, and
having a package adding aliases to the environment.

Usage

In a project, just source the shell script:

$ . deno/local-setup.sh

This will download the tools, install them to .local and put them on the path in the current shell.

Local Dev

To work on and use a local version of local-setup you can clone repo, potentially as a git submodule e.g.

git submodule add git@github.com:adl-lang/local-setup.git deno/patched/local-setup

Either change the import in local-setup.sh

-} from "https://deno.land/x/adllang_localsetup@v0.6/mod.ts";
+} from "./patched/local-setup/mod.ts";

Or use an import in override the deno.json file to override the deno package with your local copy.

For example if your fork was clone as a submodule into deno/patched/local-setup your deno.json would look like;

{
    "lock": "./deno/deno.lock",
    "imports": {
        "https://deno.land/x/adllang_localsetup@v0.6/": "./deno/patched/local-setup/"
    }
}