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'use strict';
const fs = require('fs');
const path = require('path');
const ConfigChain = require('config-chain').ConfigChain;
const util = require('./util');
class Conf extends ConfigChain {
// https://github.com/npm/npm/blob/latest/lib/config/core.js#L208-L222
constructor(base) {
super(base);
this.root = base;
}
// https://github.com/npm/npm/blob/latest/lib/config/core.js#L332-L342
add(data, marker) {
try {
for (const x of Object.keys(data)) {
data[x] = util.parseField(data[x], x);
}
} catch (err) {
throw err;
}
return super.add(data, marker);
}
// https://github.com/npm/npm/blob/latest/lib/config/core.js#L312-L325
addFile(file, name) {
name = name || file;
const marker = {__source__: name};
this.sources[name] = {path: file, type: 'ini'};
this.push(marker);
this._await();
try {
const contents = fs.readFileSync(file, 'utf8');
this.addString(contents, file, 'ini', marker);
} catch (err) {
this.add({}, marker);
}
return this;
}
// https://github.com/npm/npm/blob/latest/lib/config/core.js#L344-L360
addEnv(env) {
env = env || process.env;
const conf = {};
Object.keys(env)
.filter(x => /^npm_config_/i.test(x))
.forEach(x => {
if (!env[x]) {
return;
}
const p = x.toLowerCase()
.replace(/^npm_config_/, '')
.replace(/(?!^)_/g, '-');
conf[p] = env[x];
});
return super.addEnv('', conf, 'env');
}
// https://github.com/npm/npm/blob/latest/lib/config/load-prefix.js
loadPrefix() {
const cli = this.list[0];
Object.defineProperty(this, 'prefix', {
enumerable: true,
set: prefix => {
const g = this.get('global');
this[g ? 'globalPrefix' : 'localPrefix'] = prefix;
},
get: () => {
const g = this.get('global');
return g ? this.globalPrefix : this.localPrefix;
}
});
Object.defineProperty(this, 'globalPrefix', {
enumerable: true,
set: prefix => {
this.set('prefix', prefix);
},
get: () => {
return path.resolve(this.get('prefix'));
}
});
let p;
Object.defineProperty(this, 'localPrefix', {
enumerable: true,
set: prefix => {
p = prefix;
},
get: () => {
return p;
}
});
if (Object.prototype.hasOwnProperty.call(cli, 'prefix')) {
p = path.resolve(cli.prefix);
} else {
try {
const prefix = util.findPrefix(process.cwd());
p = prefix;
} catch (err) {
throw err;
}
}
return p;
}
// https://github.com/npm/npm/blob/latest/lib/config/load-cafile.js
loadCAFile(file) {
if (!file) {
return;
}
try {
const contents = fs.readFileSync(file, 'utf8');
const delim = '-----END CERTIFICATE-----';
const output = contents
.split(delim)
.filter(x => Boolean(x.trim()))
.map(x => x.trimLeft() + delim);
this.set('ca', output);
} catch (err) {
if (err.code === 'ENOENT') {
return;
}
throw err;
}
}
// https://github.com/npm/npm/blob/latest/lib/config/set-user.js
loadUser() {
const defConf = this.root;
if (this.get('global')) {
return;
}
if (process.env.SUDO_UID) {
defConf.user = Number(process.env.SUDO_UID);
return;
}
const prefix = path.resolve(this.get('prefix'));
try {
const stats = fs.statSync(prefix);
defConf.user = stats.uid;
} catch (err) {
if (err.code === 'ENOENT') {
return;
}
throw err;
}
}
}
module.exports = Conf;
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