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export-exchanges.js
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"use strict";
const fs = require ('fs')
const countries = require ('./countries')
const asTable = require ('as-table')
const execSync = require ('child_process').execSync
const log = require ('ololog').unlimited
const ansi = require ('ansicolor').nice
const { keys, values } = Object
// ---------------------------------------------------------------------------
let exchanges
let verbose = false
// ---------------------------------------------------------------------------
let wikiPath = 'wiki'
let gitWikiPath = 'ccxt.wiki'
let ccxtCertifiedBadge = '[](https://github.com/ccxt/ccxt/wiki/Certification)'
let spacing = ' '.repeat (7)
let logoHeading = spacing + 'logo' + spacing
let tableHeadings = [ logoHeading, 'id', 'name', 'ver', 'doc', 'certified', ]
let exchangesByCountryHeading = [ 'country / region', ... tableHeadings ]
if (!fs.existsSync (gitWikiPath)) {
log.bright.cyan ('Checking out ccxt.wiki...')
execSync ('git clone https://github.com/ccxt/ccxt.wiki.git')
}
// ---------------------------------------------------------------------------
function replaceInFile (filename, regex, replacement) {
log.bright.cyan ('Exporting exchanges →', filename.yellow)
let contents = fs.readFileSync (filename, 'utf8')
const newContents = contents.replace (regex, replacement)
fs.truncateSync (filename)
fs.writeFileSync (filename, newContents)
}
// ---------------------------------------------------------------------------
const includedIds = fs.readFileSync ('exchanges.cfg')
.toString () // Buffer → String
.split ('\n') // String → Array
.map (line => line.split ('#')[0].trim ()) // trim comments
.filter (exchange => exchange); // filter empty lines
const isIncluded = (id) => ((includedIds.length === 0) || includedIds.includes (id))
try {
exchanges = require ('./config').ids.filter (isIncluded)
} catch (e) {
log.bright.cyan ('Exporting exchanges...'.yellow)
const ids = fs.readdirSync ('./js/')
.filter (file => file.includes ('.js'))
.map (file => file.slice (0, -3))
.filter (isIncluded);
const pad = function (string, n) {
return (string + ' '.repeat (n)).slice (0, n)
};
[
{
file: './ccxt.js',
regex: /(?:const|var)\s+exchanges\s+\=\s+\{[^\}]+\}/,
replacement: "const exchanges = {\n" + ids.map (id => pad (" '" + id + "':", 30) + " require ('./js/" + id + ".js'),").join ("\n") + " \n}",
},
{
file: './python/ccxt/__init__.py',
regex: /exchanges \= \[[^\]]+\]/,
replacement: "exchanges = [\n" + " '" + ids.join ("',\n '") + "'," + "\n]",
},
{
file: './python/ccxt/__init__.py',
regex: /(?:from ccxt\.[^\.]+ import [^\s]+\s+\# noqa\: F401[\r]?[\n])+[\r]?[\n]exchanges/,
replacement: ids.map (id => pad ('from ccxt.' + id + ' import ' + id, 60) + '# noqa: F401').join ("\n") + "\n\nexchanges",
},
{
file: './python/ccxt/async_support/__init__.py',
regex: /(?:from ccxt\.async_support\.[^\.]+ import [^\s]+\s+\# noqa\: F401[\r]?[\n])+[\r]?[\n]exchanges/,
replacement: ids.map (id => pad ('from ccxt.async_support.' + id + ' import ' + id, 74) + '# noqa: F401').join ("\n") + "\n\nexchanges",
},
{
file: './python/ccxt/async_support/__init__.py',
regex: /exchanges \= \[[^\]]+\]/,
replacement: "exchanges = [\n" + " '" + ids.join ("',\n '") + "'," + "\n]",
},
{
file: './php/Exchange.php',
regex: /public static \$exchanges \= array \([^\)]+\)/,
replacement: "public static $exchanges = array (\n '" + ids.join ("',\n '") + "',\n )",
},
].forEach (({ file, regex, replacement }) => {
replaceInFile (file, regex, replacement)
})
exchanges = {}
ids.forEach (id => {
exchanges[id] = { 'verbose': verbose, 'apiKey': '', 'secret': '' }
})
log.bright.green ('Base sources updated successfully.')
}
// ----------------------------------------------------------------------------
// strategically placed exactly here
const ccxt = require ('./ccxt.js')
// ----------------------------------------------------------------------------
for (let id in exchanges) {
ccxt[id].prototype.checkRequiredDependencies = () => {}
exchanges[id] = new (ccxt)[id] (exchanges[id])
exchanges[id].verbose = verbose
}
var countryName = function (code) {
return ((countries[code] !== undefined) ? countries[code] : code)
}
// ---------------------------------------------------------------------------
// list all supported exchanges
let tableData = values (exchanges).map (exchange => {
let logo = exchange.urls['logo']
let website = Array.isArray (exchange.urls.www) ? exchange.urls.www[0] : exchange.urls.www
let url = exchange.urls.referral || website
let countries = Array.isArray (exchange.countries) ? exchange.countries.map (countryName).join (', ') : countryName (exchange.countries)
let doc = Array.isArray (exchange.urls.doc) ? exchange.urls.doc[0] : exchange.urls.doc
let version = exchange.version ? exchange.version : '\*'
let matches = version.match (/[^0-9]*([0-9].*)/)
if (matches)
version = matches[1];
return [
'[](' + url + ')',
exchange.id,
'[' + exchange.name + '](' + url + ')',
version,
'[API](' + doc + ')',
exchange.certified ? ccxtCertifiedBadge : '',
countries,
]
})
tableData.splice (0, 0, tableHeadings)
function makeTable (jsonArray) {
let table = asTable.configure ({ 'delimiter': ' | ' }) (jsonArray)
let lines = table.split ("\n")
lines.splice (1,0, lines[0].replace (/[^\|]/g, '-'))
let headerLine = lines[1].split ('|')
headerLine[3] = ':' + headerLine[3].slice (1, headerLine[3].length - 1) + ':'
headerLine[4] = ':' + headerLine[4].slice (1, headerLine[4].length - 1) + ':'
lines[1] = headerLine.join ('|')
return lines.map (line => '|' + line + '|').join ("\n")
}
let exchangesTable = makeTable (tableData)
let numExchanges = keys (exchanges).length
let beginning = "The ccxt library currently supports the following "
let ending = " cryptocurrency exchange markets and trading APIs:\n\n"
let totalString = beginning + numExchanges + ending
let howMany = totalString + exchangesTable + "$1"
let allExchangesRegex = new RegExp ("[^\n]+[\n]{2}\\|[^#]+\\|([\n][\n]|[\n]$|$)", 'm')
replaceInFile ('README.md', allExchangesRegex, howMany)
replaceInFile (wikiPath + '/Manual.md', allExchangesRegex, howMany)
replaceInFile (wikiPath + '/Exchange-Markets.md', allExchangesRegex, howMany)
let certifiedFieldIndex = tableHeadings.indexOf ('certified')
let certified = tableData.filter ((x) => x[certifiedFieldIndex] !== '' )
let allCertifiedRegex = new RegExp ("^(## Certified Cryptocurrency Exchanges\n{3})(?:\\|.+\\|$\n)+", 'm')
let certifiedTable = makeTable (certified)
let certifiedTableReplacement = '$1' + certifiedTable + "\n"
replaceInFile ('README.md', allCertifiedRegex, certifiedTableReplacement)
let exchangesByCountries = []
keys (countries).forEach (code => {
let country = countries[code]
let result = []
keys (exchanges).forEach (id => {
let exchange = exchanges[id]
let logo = exchange.urls['logo']
let website = Array.isArray (exchange.urls.www) ? exchange.urls.www[0] : exchange.urls.www
let url = exchange.urls.referral || website
let doc = Array.isArray (exchange.urls.doc) ? exchange.urls.doc[0] : exchange.urls.doc
let version = exchange.version ? exchange.version : '\*'
let matches = version.match (/[^0-9]*([0-9].*)/)
if (matches)
version = matches[1];
let shouldInclude = false
if (Array.isArray (exchange.countries)) {
if (exchange.countries.indexOf (code) > -1)
shouldInclude = true
} else {
if (code == exchange.countries)
shouldInclude = true
}
if (shouldInclude) {
let entry = [
country,
'[](' + url + ')',
exchange.id,
'[' + exchange.name + '](' + url + ')',
version,
'[API](' + doc + ')',
// doesn't fit in width
// exchange.certified ? ccxtCertifiedBadge : '',
]
result.push (entry)
}
})
exchangesByCountries = exchangesByCountries.concat (result)
});
let countryKeyIndex = exchangesByCountryHeading.indexOf ('country / region')
exchangesByCountries = exchangesByCountries.sort ((a, b) => {
let countryA = a[countryKeyIndex].toLowerCase ()
let countryB = b[countryKeyIndex].toLowerCase ()
if (countryA > countryB) {
return 1
} else if (countryA < countryB) {
return -1;
} else {
if (a['id'] > b['id'])
return 1;
else if (a['id'] < b['id'])
return -1;
else
return 0;
}
})
exchangesByCountries.splice (0, 0, exchangesByCountryHeading)
let lines = makeTable (exchangesByCountries)
let result = "# Exchanges By Country\n\nThe ccxt library currently supports the following cryptocurrency exchange markets and trading APIs:\n\n" + lines + "\n\n"
let filename = wikiPath + '/Exchange-Markets-By-Country.md'
fs.truncateSync (filename)
fs.writeFileSync (filename, result)
log.bright ('Exporting exchange ids to'.cyan, 'exchanges.json'.yellow)
fs.writeFileSync ('exchanges.json', JSON.stringify ({ ids: keys (exchanges) }, null, 4))
// ----------------------------------------------------------------------------
const ccxtWikiFileMapping = {
'README.md': 'Home.md',
'Install.md': 'Install.md',
'Manual.md': 'Manual.md',
'Exchange-Markets.md': 'Exchange-Markets.md',
'Exchange-Markets-By-Country.md': 'Exchange-Markets-By-Country.md',
}
keys (ccxtWikiFileMapping)
.forEach (file =>
fs.writeFileSync (gitWikiPath + '/' + ccxtWikiFileMapping[file], fs.readFileSync (wikiPath + '/' + file)))
// ----------------------------------------------------------------------------
log.bright ('Exporting exchange keywords to'.cyan, 'package.json'.yellow)
const packageJSON = require ('./package.json')
const keywords = new Set (packageJSON.keywords)
for (const ex of values (exchanges)) {
for (const url of Array.isArray (ex.urls.www) ? ex.urls.www : [ex.urls.www]) {
keywords.add (url.replace (/(http|https):\/\/(www\.)?/, '').replace (/\/.*/, ''))
}
keywords.add (ex.name)
}
packageJSON.keywords = [...keywords]
fs.writeFileSync ('./package.json', JSON.stringify (packageJSON, null, 2))
// ----------------------------------------------------------------------------
log.bright.green ('Exchanges exported successfully.')