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npm/README.md

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+# `binary-install-example`
+
+This package is not published to npm and is only used for illustrative purposes and for testing `binary-install`.
+
+## `binary.js`
+
+This file contains logic to detect the correct tarball endpoint for [`example-binary`](../example-binary) based on platform (Linux, MacOS, or Windows).
+
+## `install.js`
+
+This file imports the `install` function from `binary.js` and just runs it. `install.js` is referred to by the `postinstall` section in `package.json`.
+
+## `run.test.js`
+
+This file contains just a few tests that make sure that installs work and running commands work.

npm/binary.js

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+const { Binary } = require("@emi2k01/binary-install");
+const os = require("os");
+const cTable = require("console.table");
+
+const VERSION = "0.0.4";
+
+const error = (msg) => {
+  console.error(msg);
+  process.exit(1);
+};
+
+const { version, name, repository } = require("./package.json");
+
+const supportedPlatforms = [
+  {
+    TYPE: "Windows_NT",
+    ARCHITECTURE: "x64",
+    RUST_TARGET: "x86_64-pc-windows-msvc",
+    BINARY_NAME: "git-ct.exe",
+  },
+  {
+    TYPE: "Linux",
+    ARCHITECTURE: "x64",
+    RUST_TARGET: "x86_64-unknown-linux-musl",
+    BINARY_NAME: "git-ct",
+  },
+  {
+    TYPE: "Darwin",
+    ARCHITECTURE: "x64",
+    RUST_TARGET: "x86_64-apple-darwin",
+    BINARY_NAME: "git-ct",
+  },
+];
+
+const getPlatformMetadata = () => {
+  const type = os.type();
+  const architecture = os.arch();
+
+  for (let supportedPlatform of supportedPlatforms) {
+    if (
+      type === supportedPlatform.TYPE &&
+      architecture === supportedPlatform.ARCHITECTURE
+    ) {
+      return supportedPlatform;
+    }
+  }
+
+  error(
+    `Platform with type "${type}" and architecture "${architecture}" is not supported by ${name}.\nYour system must be one of the following:\n\n${cTable.getTable(
+      supportedPlatforms
+    )}`
+  );
+};
+
+const getBinary = () => {
+  const platformMetadata = getPlatformMetadata();
+  // the url for this binary is constructed from values in `package.json`
+  // https://github.com/EverlastingBugstopper/binary-install/releases/download/v1.0.0/binary-install-example-v1.0.0-x86_64-apple-darwin.tar.gz
+  const url = `${repository.url}/releases/download/v${VERSION}/${name}_v${VERSION}_${platformMetadata.RUST_TARGET}.tar.gz`;
+  return new Binary(platformMetadata.BINARY_NAME, url);
+};
+
+const run = () => {
+  const binary = getBinary();
+  binary.run();
+};
+
+const install = () => {
+  const binary = getBinary();
+  binary.install();
+};
+
+const uninstall = () => {
+  const binary = getBinary();
+  binary.uninstall();
+};
+
+module.exports = {
+  install,
+  run,
+  uninstall,
+};

npm/install.js

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+#!/usr/bin/env node
+
+const { install } = require("./binary");
+install();