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32 lines
809 B
JavaScript
32 lines
809 B
JavaScript
const chalk = require('chalk')
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const commandExists = require('command-exists')
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const COMMANDS = {
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'gm': 'http://www.graphicsmagick.org',
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'exiftool': 'https://www.sno.phy.queensu.ca/~phil/exiftool',
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'ffmpeg': 'https://www.ffmpeg.org'
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}
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exports.verify = function () {
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const missing = Object.keys(COMMANDS).reduce(addToArrayIfMissing, [])
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if (missing.length > 0) {
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const list = missing.map(nameAndURL).join('\n')
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return `The following programs are required to run thumbsup:\n
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${list}\n
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Please make sure they are installed and available in the system path.`
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}
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return null
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}
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function addToArrayIfMissing (acc, cmd) {
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if (!commandExists.sync(cmd)) {
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acc.push(cmd)
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}
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return acc
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}
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function nameAndURL (cmd) {
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const url = chalk.green(COMMANDS[cmd])
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return `- ${cmd} (${url})`
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}
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