24 lines
533 B
JavaScript
24 lines
533 B
JavaScript
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'use strict'
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const fs = require('fs')
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const path = require('path')
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const util = require('util')
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function parseBranch(buf) {
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const match = /ref: refs\/heads\/([^\n]+)/.exec(buf.toString())
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return match ? match[1] : null
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}
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function gitHeadPath(cwd) {
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const filepath = path.join(process.cwd(), '.git/HEAD')
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if (!fs.existsSync(filepath)) {
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throw new Error('.git/HEAD does not exist')
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}
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return filepath
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}
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const gitBranch = function() {
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return parseBranch(fs.readFileSync(gitHeadPath()))
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}
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module.exports = gitBranch
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