nixpkgs/pkgs/development/tools/yarn2nix-moretea/yarn2nix/internal/fixup_bin.js
2019-07-25 17:15:00 +02:00

54 lines
1.6 KiB
JavaScript
Executable file

#!/usr/bin/env node
/* Usage:
* node fixup_bin.js <bin_dir> <modules_dir> [<bin_pkg_1>, <bin_pkg_2> ... ]
*/
const fs = require('fs')
const path = require('path')
const derivationBinPath = process.argv[2]
const nodeModules = process.argv[3]
const packagesToPublishBin = process.argv.slice(4)
function processPackage(name) {
console.log('fixup_bin: Processing ', name)
const packagePath = `${nodeModules}/${name}`
const packageJsonPath = `${packagePath}/package.json`
const packageJson = JSON.parse(fs.readFileSync(packageJsonPath))
if (!packageJson.bin) {
console.log('fixup_bin: No binaries provided')
return
}
// There are two alternative syntaxes for `bin`
// a) just a plain string, in which case the name of the package is the name of the binary.
// b) an object, where key is the name of the eventual binary, and the value the path to that binary.
if (typeof packageJson.bin === 'string') {
const binName = packageJson.bin
packageJson.bin = {}
packageJson.bin[packageJson.name] = binName
}
// eslint-disable-next-line no-restricted-syntax, guard-for-in
for (const binName in packageJson.bin) {
const binPath = packageJson.bin[binName]
const normalizedBinName = binName.replace('@', '').replace('/', '-')
const targetPath = path.normalize(`${packagePath}/${binPath}`)
const createdPath = `${derivationBinPath}/${normalizedBinName}`
console.log(
`fixup_bin: creating link ${createdPath} that points to ${targetPath}`,
)
fs.symlinkSync(targetPath, createdPath)
}
}
packagesToPublishBin.forEach(pkg => {
processPackage(pkg)
})