remote-jobs/lib/index.js
2019-10-14 18:14:56 +00:00

491 lines
12 KiB
JavaScript
Executable file

#!/usr/bin/env node
const fs = require( 'fs' );
const path = require( 'path' );
const util = require( 'util' );
const cheerio = require( 'cheerio' );
const marked = require( 'marked' );
/**
* Constants
*/
const headingsRequired = [
'Company blurb',
];
const headingsOptional = [
'Company size',
'Remote status',
'Region',
'Company technologies',
'Office locations',
'How to apply',
];
const headingsAll = headingsRequired.concat( headingsOptional );
/**
* Utility functions
*/
function companyNameToProfileFilename( companyName ) {
return companyName.toLowerCase()
.replace( /&/g, ' and ' )
.replace( /'/g, '' )
.replace( /[^a-z0-9]+/gi, '-' )
.replace( /^-|-$/g, '' );
}
exports.companyNameToProfileFilename = companyNameToProfileFilename;
// adapted from https://gist.github.com/RandomEtc/2657669
function jsonStringifyUnicodeEscaped( obj ) {
return JSON.stringify( obj ).replace( /[\u007f-\uffff]/g, c => {
return '\\u' + ( '0000' + c.charCodeAt( 0 ).toString( 16 ) ).slice( -4 );
} );
}
exports.jsonStringifyUnicodeEscaped = jsonStringifyUnicodeEscaped;
function toIdentifierCase( text ) {
return text
.replace( /'/g, '' )
.replace( /[^a-z0-9]+/gi, ' ' )
.trim()
.split( /\s+/ )
.map( ( word, i ) => {
if ( i === 0 ) {
return word.toLowerCase();
}
return (
word.substr( 0, 1 ).toUpperCase()
+ word.substr( 1 ).toLowerCase()
);
} )
.join( '' );
}
exports.toIdentifierCase = toIdentifierCase;
function stripExtraChars( text ) {
return text.replace( /\ufe0f/g, '' );
}
exports.stripExtraChars = stripExtraChars;
/**
* Other exports
*/
exports.headingPropertyNames = headingsAll.reduce( ( acc, val ) => {
acc[ toIdentifierCase( val ) ] = val;
return acc;
}, {} );
/**
* The main exported function
*
* Start with a directory including a README.md and company-profiles/*.md
* files, and validate and parse the content of the Markdown files.
*/
exports.parseFromDirectory = contentPath => {
let errors = [];
function error( filename, msg, ...params ) {
errors.push( {
filename,
message: util.format( msg, ...params ),
} );
}
// Build list of Markdown files containing company profiles.
const profilesPath = path.join( contentPath, 'company-profiles' );
const profileFilenames = fs.readdirSync( profilesPath );
// Scan the company table in the readme.
const readmeCompanies = [];
const readmeMarkdown = stripExtraChars( fs.readFileSync(
path.join( contentPath, 'README.md' ),
'utf8'
) );
const $ = cheerio.load( marked( readmeMarkdown ) );
function readmeError( msg, ...params ) {
error( 'README.md', msg, ...params );
}
let lastCompanyName = null;
$( 'tr' ).each( ( i, tr ) => {
if ( i === 0 ) {
// Assign an ID to the table.
$( tr ).closest( 'table' ).attr( 'id', 'companies-table' );
// Skip the table header row.
return;
}
const $td = $( tr ).children( 'td' );
if ( $td.length !== 3 ) {
readmeError(
'Expected 3 table cells but found %d: %s',
$td.length,
$( tr ).html().replace( /\n/g, '' )
);
}
const websiteUrl = $td.eq( 1 ).text();
const websiteText = websiteUrl
.replace( /^https?:\/\//, '' )
.replace( /^www\./, '' )
.replace( /\/$/, '' );
const readmeEntry = {
// Strip out warning emoji indicating that this profile is incomplete
name: $td.eq( 0 ).text().replace( /\u26a0/, '' ).trim(),
// Detect warning emoji next to company name
isIncomplete: /\u26a0/.test( $td.eq( 0 ).text() ),
websiteUrl,
websiteText,
shortRegion: $td.eq( 2 ).text().trim(),
};
if ( ! readmeEntry.name ) {
readmeError(
'Missing company name: %s',
$( tr ).html().replace( /\n/g, '' )
);
}
if (
$td.eq( 1 ).children().length !== 1 ||
! $td.eq( 1 ).children().eq( 0 ).is( 'a' )
) {
readmeError(
'Invalid content in Website column: %s',
$( tr ).html().replace( /\n/g, '' )
);
}
if ( $td.eq( 2 ).children().length > 0 ) {
readmeError(
'Extra content in Region column: %s',
$( tr ).html().replace( /\n/g, '' )
);
}
if (
lastCompanyName &&
readmeEntry.name.toLowerCase() < lastCompanyName.toLowerCase()
) {
readmeError(
'Company is listed out of order: "%s" (should be before "%s")',
readmeEntry.name,
lastCompanyName
);
}
lastCompanyName = readmeEntry.name;
const $profileLink = $td.eq( 0 ).find( 'a' );
if ( $profileLink.length === 1 ) {
const match = $profileLink.attr( 'href' ).match( /^\/company-profiles\/(.*\.md)$/ );
if ( match ) {
readmeEntry.linkedFilename = match[ 1 ];
if ( profileFilenames.indexOf( readmeEntry.linkedFilename ) === -1 ) {
readmeError(
'Missing company profile for "%s", or broken link: "%s"',
readmeEntry.name,
$profileLink.attr( 'href' )
);
}
const nameCheck = $profileLink.text().trim();
if ( nameCheck !== readmeEntry.name ) {
readmeError(
'Extra text in company name: %s, %s',
jsonStringifyUnicodeEscaped( nameCheck ),
jsonStringifyUnicodeEscaped( readmeEntry.name )
);
}
} else {
readmeError(
'Invalid link to company profile for "%s": "%s"',
readmeEntry.name,
$profileLink.attr( 'href' )
);
}
} else {
readmeError(
'Company "%s" has no linked Markdown profile ("/company-profiles/%s.md")',
readmeEntry.name,
companyNameToProfileFilename( readmeEntry.name )
);
}
// Set classes on table cells
$td.eq( 0 ).attr( 'class', 'company-name' );
$td.eq( 1 ).attr( 'class', 'company-website' );
$td.eq( 2 ).attr( 'class', 'company-region' );
// Rewrite company profile link to the correct URL for the static site
if ( $profileLink.length ) {
$profileLink.attr(
'href',
$profileLink.attr( 'href' )
.replace( /^\/company-profiles\//, '/' )
.replace( /\.md$/, '/' )
);
}
// Rewrite external website link (target="_blank" etc, shorter text)
const $websiteLink = $td.eq( 1 ).children().eq( 0 );
$websiteLink
.attr( 'target', '_blank' )
.attr( 'rel', 'noopener noreferrer' )
.text( websiteText );
readmeCompanies.push( readmeEntry );
} );
const readmeContent = $( 'body' ).html();
// Scan the individual Markdown files containing the company profiles.
const allProfileHeadings = {};
profileFilenames.forEach( filename => {
function profileError( msg, ...params ) {
error( filename, msg, ...params );
}
const profileMarkdown = stripExtraChars( fs.readFileSync(
path.join( profilesPath, filename ),
'utf8'
) );
const $ = cheerio.load( marked( profileMarkdown ) );
let hasTitleError = false;
if ( $( 'h1' ).length !== 1 ) {
profileError(
'Expected 1 first-level heading but found %d',
$( 'h1' ).length
);
hasTitleError = true;
}
if ( ! $( 'h1' ).parent().is( 'body' ) ) {
profileError(
'The main title is wrapped inside of another element.'
);
}
const companyName = $( 'h1' ).text();
if ( ! /[a-z]/i.test( companyName ) ) {
profileError(
'Company name looks wrong: "%s"',
companyName
);
hasTitleError = true;
}
const filenameBase = filename.replace( /\.md$/, '' );
const filenameExpected = companyNameToProfileFilename( companyName );
if (
! hasTitleError &&
filenameBase !== filenameExpected &&
// Some profile files just have shorter names than the company name,
// which is fine.
filenameExpected.substring( 0, filenameBase.length + 1 ) !== filenameBase + '-'
) {
profileError(
'Company title "%s" doesn\'t match filename (expected ~ "%s.md")',
companyName,
filenameExpected
);
}
const readmeEntry = readmeCompanies.find(
readmeEntry => readmeEntry.linkedFilename === filename
);
if ( filename !== 'example.md' && ! readmeEntry ) {
profileError( 'No link to company profile from readme' );
}
// Build and validate list of headings contained in this Markdown profile.
const profileHeadings = [];
$( 'h2' ).each( ( i, el ) => {
const headingName = $( el ).html();
if ( ! $( el ).parent().is( 'body' ) ) {
profileError(
'The section heading for "%s" is wrapped inside of another element.',
headingName
);
}
if ( profileHeadings.indexOf( headingName ) >= 0 ) {
profileError(
'Duplicate section: "%s".',
headingName
);
} else {
// Track headings for this profile
profileHeadings.push( headingName );
// Track heading counts across all profiles
if ( ! allProfileHeadings[ headingName ] ) {
allProfileHeadings[ headingName ] = [];
}
allProfileHeadings[ headingName ].push( filename );
}
if ( headingsAll.indexOf( headingName ) === -1 ) {
profileError(
'Invalid section: "%s". Expected one of: %s',
headingName,
JSON.stringify( headingsAll )
);
}
} );
headingsRequired.forEach( headingName => {
if ( profileHeadings.indexOf( headingName ) === -1 ) {
profileError(
'Required section "%s" not found.',
headingName
);
}
} );
// Build and validate the content of each section in this profile.
const profileContent = {};
if ( readmeEntry ) {
readmeEntry.profileContent = profileContent;
}
let currentHeading = null;
$( 'body' ).children().each( ( i, el ) => {
const $el = $( el );
if ( $el.is( 'h1' ) ) {
return;
}
if ( $el.is( 'h2' ) ) {
currentHeading = $el.html();
profileContent[ currentHeading ] = '';
} else if ( currentHeading ) {
// Note: This assumes that the only possible children of the
// 'body' are block-level elements. I think this is correct,
// because from what I've seen, any inline content is wrapped
// in a <p>.
profileContent[ currentHeading ] = (
profileContent[ currentHeading ]
+ '\n\n' + $.html( el )
).trim();
} else {
profileError(
'Content is not part of any section: %s',
$.html( el ).replace( /\n/g, '' )
);
}
} );
Object.keys( profileContent ).forEach( heading => {
const sectionText = profileContent[ heading ]
.replace( /<[^>]+>/g, '' )
.trim();
if ( ! sectionText ) {
profileError(
'Empty section: "%s". Fill it in or leave it out instead.',
heading
);
}
} );
// Rewrite profile content to use more code-friendly heading names.
Object.keys( profileContent ).forEach( headingName => {
const headingIdentifier = toIdentifierCase( headingName );
profileContent[ headingIdentifier ] = profileContent[ headingName ];
delete profileContent[ headingName ];
} );
if ( readmeEntry && profileContent.companyBlurb ) {
// Check for company profiles that were filled in, but the "incomplete"
// mark was left in the readme, or vice versa.
const isIncomplete = {
readme: readmeEntry.isIncomplete,
sections: (
profileHeadings.length === 1 &&
profileHeadings[ 0 ] === 'Company blurb'
),
content: /&#x26A0;/.test( profileContent.companyBlurb ),
};
const incompleteCount = Object.values( isIncomplete )
.reduce( ( sum, v ) => sum + ( v ? 1 : 0 ), 0 );
// incompleteCount === 0: Profile is incomplete; all 3 indicators are consistent
// incompleteCount === 3: Profile is "complete"; all 3 indicators are consistent
if ( incompleteCount === 1 ) {
if ( isIncomplete.readme ) {
profileError(
'Profile looks complete, but the main readme contains a warning emoji.'
);
} else if ( isIncomplete.sections ) {
profileError(
'Profile is marked as complete, but it only contains a "Company blurb" heading.'
)
} else { // isIncomplete.content
profileError(
'Profile looks complete, but the "Company blurb" contains a warning emoji.'
);
}
} else if ( incompleteCount === 2 ) {
if ( ! isIncomplete.readme ) {
profileError(
'Profile looks incomplete, but the main readme does not contain a warning emoji.'
);
} else if ( ! isIncomplete.sections ) {
profileError(
'Profile is marked as incomplete, but it contains multiple sections.'
+ '\nPlease remove the warning emoji from the "Company blurb" section and the main readme.'
)
} else { // ! isIncomplete.content
profileError(
'Profile looks incomplete, but the "Company blurb" does not contain a warning emoji.'
);
}
}
}
} );
const profileHeadingCounts = {};
Object.keys( allProfileHeadings ).forEach( heading => {
profileHeadingCounts[ heading ] = allProfileHeadings[ heading ].length;
} );
if ( errors.length > 0 ) {
return {
ok: false,
errors,
profileFilenames,
profileHeadingCounts,
}
}
return {
ok: true,
profileFilenames,
profileHeadingCounts,
companies: readmeCompanies,
readmeContent,
};
};