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Improve error messages when packages are not installed (#764).

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This commit is contained in:
be5invis 2020-12-01 18:09:04 -08:00
parent acf6477d78
commit 1b9eef5b7a
5 changed files with 45 additions and 33 deletions
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23
utility/ensure-verda-exists.js Normal file
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@ -0,0 +1,23 @@
"use strict";
const FgRed = "\x1b[31m";
const FgYellow = "\x1b[33m";
const Reset = "\x1b[0m";
const os = require("os");
const shellWord = os.platform() === "win32" ? "command prompt" : "shell";
// Check packages are present
try {
require("verda/package.json");
require("semver/package.json");
require("which/package.json");
require("@iarna/toml/package.json");
} catch (e) {
console.error(`${FgRed}It looks like you forgot to run "npm install" before building.${Reset}`);
console.error(`"npm install" sets up dependencies required to build the fonts.`);
console.error(`Run the following command in your ${shellWord} and retry:`);
console.error(` ${FgYellow}npm install${Reset}`);
console.error();
process.exit(1);
}