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// USAGE:
// node test.js -r README.md (Checks whole file)
// node test.js -r README.md -d temp.md (Checks just the diff)
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const fs = require('fs');
const chalk = require('chalk');
let licenses = new Set();
let pr = false;
let readme;
let diff;
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//Parse the command options and set the pr var
function parseArgs(args) {
if ( args.indexOf('-r', 2) > 0 ) {
readme = fs.readFileSync(args[args.indexOf('-r', 2)+1], 'utf8')
}
if (args.indexOf('-d', 2) > 0) {
pr = true;
diff = fs.readFileSync(args[args.indexOf('-d', 2)+1], 'utf8');
}
if ( pr === true) {
console.log(chalk.blue(`Running on PR. README.md: ${args[args.indexOf('-r', 2)+1]} diff: ${args[args.indexOf('-d', 2)+1]}`))
}
}
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// Function to find lines with entries
function entryFilter(md) {
const linepatt = /^\s{0,2}-\s\[.*`/;
return linepatt.test(md);
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}
// Function to find lines with licenses
function licenseFilter(md) {
const linepatt = /^- `.*` - .*/;
return linepatt.test(md)
}
// Function to split lines into array
function split(text) {
return text.split(/\r?\n/);
}
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// All entries should match this pattern. If matches pattern returns true.
function findPattern(text) {
const patt = /^\s{0,2}-\s\[.*?\]\(.*?\) (`⚠` )?- .{0,249}?\.( \(\[(Demo|Source Code|Clients)\]\([^)\]]*\)(, \[(Source Code|Clients)\]\([^)\]]*\))?(, \[(Source Code|Clients)\]\([^)\]]*\))*\))? \`.*?\` \`.*?\`$/;
if (patt.test(text) === true) {
return true;
}
return false;
}
// Parses SPDX identifiers from list of licenses
function parseLicense(md) {
const patt = /^- `(.*)` - .*/
return patt.exec(md)[1]
}
//Test '- [Name](http://homepage/)'
function testMainLink(text) {
let testA = /(^ {0,2}- \[.*?\]\([^)]*\.[^)]*?\))(?=\ ?\-?\ ?\w)/ // /(^ {0,2}- \[.*?\]\(.*\))(?=.?-? ?\w)/;
const testA1 = /(- \W?\w*\W{0,2}.*?\)?)( .*$)/;
if (!testA.test(text)) {
let a1 = testA1.exec(text)[2];
return chalk.red(text.replace(a1, ''))
}
return chalk.green(testA.exec(text)[1])
}
//Test '`⚠` - Short description, less than 250 characters.'
function testDescription(text) {
const testB = /( - .*\. )(?:(\(?\[?|\`))/;
const testA1 = /(- \W?\w*\W{0,2}.*?\)?)( .*$)/;
const testB2 = /((\(\[|\`).*$)/;
if (!testB.test(text)) {
let b1 = testA1.exec(text)[1];
let b2 = testB2.exec(text)[1];
return chalk.red(text.replace(b1, '').replace(b2, ''))
}
return chalk.green(testB.exec(text)[1])
}
//If present, tests '([Demo](http://url.to/demo), [Source Code](http://url.of/source/code), [Clients](https://url.to/list/of/related/clients-or-apps))'
function testSrcDemCli(text) {
let testC = text.search(/\.\ \(|\.\ \[|\ \(\[[sSdDcC]/); // /\(\[|\)\,|\)\)/);
let testD = /(?<=\w. )(\(\[(Demo|Source Code|Clients)\]\([^)\]]*\)(, \[(Source Code|Clients)\]\([^)\]]*\))?(, \[(Source Code|Clients)\]\([^)\]]*\))*\))(?= \`?)/;
const testD1 = /(^- \W[a-zA-Z0-9-_ .]*\W{0,2}http[^\[]*)(?<= )/;
const testD2 = /(\`.*\` \`.*\`$)/;
if ((testC > -1) && (!testD.test(text))) {
let d1 = testD1.exec(text)[1];
let d2 = testD2.exec(text)[1];
return chalk.red(text.replace(d1, '').replace(d2, ''))
} else if (testC > -1) {
return chalk.green(testD.exec(text)[1])
}
return ""
}
// Tests '`License` `Language`'
function testLangLic(text) {
const testD2 = /(\`.*\` \`.*\`$)/;
let testE = testD2.test(text);
const testE1 = /(^[^`]*)/;
if (!testE) {
let e1 = testE1.exec(text)[1];
return chalk.red(text.replace(e1, ''))
}
return chalk.green(testD2.exec(text)[1])
}
//Runs all the syntax tests...
function findError(text) {
let res
res = testMainLink(text)
res += testDescription(text)
res += testSrcDemCli(text)
res += testLangLic(text)
return res + `\n`
}
//Check if license is in the list of licenses.
function testLicense(md) {
let pass = true;
let lFailed = []
let lPassed = []
const regex = /.*\`(.*)\` .*$/;
try {
for (l of regex.exec(md)[1].split("/")) {
if (!licenses.has(l)) {
pass = false;
lPassed.push(l)
}
lFailed.push(l)
}
}
catch(err) {
console.log(chalk.yellow("Error in License syntax, license not checked against list."))
return [false, "", ""]
}
return [pass, lFailed, lPassed]
}
//Parses name from entry
function parseName(md) {
const regex = /^\W*(.*?)\W/
return regex.exec(md)[1]
}
function entryErrorCheck() {
const lines = split(readme); // Inserts each line into the entries array
let totalFail = 0;
let totalPass = 0;
let total = 0;
let entries = [];
let diffEntries = [];
if (lines[0] === "") {
console.log(chalk.red("0 Entries Found, check your commandline arguments"))
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process.exit(0)
}
for (let i = 0; i < lines.length; i ++) { // Loop through array of lines
if (entryFilter(lines[i]) === true) { // filter out lines that don't start with * [)
e = {};
e.raw = lines[i];
e.line = i + 1
entries.push(e);
} else if (licenseFilter(lines[i]) === true) {
licenses.add(parseLicense(lines[i]))
}
}
if (pr === true) {
console.log(chalk.cyan("Only testing the diff from the PR.\n"))
const diffLines = split(diff); // Inserts each line of diff into an array
for (let l of diffLines) {
if (entryFilter(l) === true) { // filter out lines that don't start with * [)
e = {};
e.raw = l;
diffEntries.push(e);
} else if (licenseFilter(l) === true) {
licenses.add(parseLicense(l))
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}
}
if (diffEntries.length === 0) {
console.log("No entries changed in README.md, Exiting...")
process.exit(0)
}
total = diffEntries.length
for (let e of diffEntries) {
e.pass = true
e.name = parseName(e.raw)
if (!findPattern(e.raw)) {
e.highlight = findError(e.raw);
e.pass = false;
console.log(e.highlight)
}
e.licenseTest = testLicense(e.raw);
if (!e.licenseTest) {
e.pass = false;
console.log(chalk.red(`${e.name}'s license is not on License list.`))
}
if (e.pass) {
totalPass++
} else {
totalFail++
}
}
} else {
console.log(chalk.cyan("Testing entire README.md\n"))
total = entries.length
for (let e of entries) {
e.pass = true
e.name = parseName(e.raw)
if (!findPattern(e.raw)) {
e.highlight = findError(e.raw);
e.pass = false;
console.log(`${chalk.yellow(e.line + ": ")}${e.highlight}`);
syntax = e.highlight;
}
e.licenseTest = testLicense(e.raw);
if (!e.licenseTest[0]) {
e.pass = false;
console.log(chalk.yellow(e.line + ": ") + `${e.name}'s license ${chalk.red(`'${e.licenseTest[1]}'`)} is not on the License list.\n`)
}
if (e.pass) {
totalPass++
} else {
totalFail++
}
}
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}
if (totalFail > 0) {
console.log(chalk.blue(`\n-----------------------------\n`))
console.log(chalk.red(`${totalFail} Failed, `) + chalk.green(`${totalPass} Passed, `) + chalk.blue(`of ${total}`))
console.log(chalk.blue(`\n-----------------------------\n`))
process.exit(1);
} else {
console.log(chalk.blue(`\n-----------------------------\n`))
console.log(chalk.green(`${totalPass} Passed of ${total}`))
console.log(chalk.blue(`\n-----------------------------\n`))
process.exit(0)
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}
}
parseArgs(process.argv)
entryErrorCheck();