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#!/usr/bin/env node
const fs = require('fs');
const path = require('path');
const process = require('process');
var packages = {};
function normalize(name) {
return name.replace('/', '-').replace('@', '').replace('.', '-');
}
function findPackages(dir) {
fs.readdirSync(dir).forEach(function(entry) {
const p = path.join(dir, entry);
const name = normalize(dir);
if (fs.lstatSync(p).isDirectory()) {
findPackages(p);
} else if (entry === 'default.nix' && dir !== '.') {
packages[name] = dir;
}
});
}
process.chdir(path.join(path.dirname(process.argv[1]), 'npmPackages'));
findPackages('.');
const names = Object.keys(packages).sort();
const index = fs.createWriteStream('index.nix');
index.once('open', (fd) => {
fs.writeSync(fd, '# XXX this file is automatically generated.\n');
fs.writeSync(fd, 'self: super:\n');
fs.writeSync(fd, 'let\n');
fs.writeSync(fd, ' inherit (super) callPackage;\n');
fs.writeSync(fd, 'in {\n');
for (var i = 0; i < names.length; i++) {
var path = packages[names[i]];
if (path[0] === '@') {
path = `(./. + "${path}")`;
} else {
path = `./${path}`;
}
fs.writeSync(fd, ` ${names[i]} = callPackage ${path} {};\n`);
}
fs.writeSync(fd, '}\n');
fs.closeSync(fd);
});
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