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const fs = require('fs-extra')
const path = require('path')
const yamlParser = require('js-yaml')
const tomlParser = require('toml')
module.exports = function loadConfig (vuepressDir, bustCache = true) {
const configPath = path.resolve(vuepressDir, 'config.js')
const configYmlPath = path.resolve(vuepressDir, 'config.yml')
const configTomlPath = path.resolve(vuepressDir, 'config.toml')
if (bustCache) {
delete require.cache[configPath]
}
// resolve siteConfig
let siteConfig = {}
if (fs.existsSync(configYmlPath)) {
siteConfig = parseConfig(configYmlPath)
} else if (fs.existsSync(configTomlPath)) {
siteConfig = parseConfig(configTomlPath)
} else if (fs.existsSync(configPath)) {
siteConfig = require(configPath)
}
return siteConfig
}
function parseConfig (file) {
const content = fs.readFileSync(file, 'utf-8')
const [extension] = /.\w+$/.exec(file)
let data
switch (extension) {
case '.yml':
case '.yaml':
data = yamlParser.safeLoad(content)
break
case '.toml':
data = tomlParser.parse(content)
// reformat to match config since TOML does not allow different data type
// https://github.com/toml-lang/toml#array
const format = []
if (data.head) {
Object.keys(data.head).forEach(meta => {
data.head[meta].forEach(values => {
format.push([meta, values])
})
})
}
data.head = format
break
}
return data || {}
}
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