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1 | // https://github.com/npm/rfcs/pull/183
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2 |
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3 | const envVal = val => Array.isArray(val) ? val.map(v => envVal(v)).join('\n\n')
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4 | : val === null || val === false ? ''
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5 | : String(val)
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6 |
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7 | const packageEnvs = (env, vals, prefix) => {
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8 | for (const [key, val] of Object.entries(vals)) {
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9 | if (val === undefined)
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10 | continue
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11 | else if (val && !Array.isArray(val) && typeof val === 'object')
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12 | packageEnvs(env, val, `${prefix}${key}_`)
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13 | else
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14 | env[`${prefix}${key}`] = envVal(val)
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15 | }
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16 | return env
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17 | }
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18 |
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19 | module.exports = (env, pkg) => packageEnvs({ ...env }, {
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20 | name: pkg.name,
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21 | version: pkg.version,
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22 | config: pkg.config,
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23 | engines: pkg.engines,
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24 | bin: pkg.bin,
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25 | }, 'npm_package_')
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