mirror of
https://github.com/balena-io/balena-cli.git
synced 2024-12-30 02:28:51 +00:00
87 lines
2.1 KiB
CoffeeScript
87 lines
2.1 KiB
CoffeeScript
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Promise = require('bluebird')
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exports.QEMU_VERSION = QEMU_VERSION = 'v2.5.50-resin-execve'
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exports.QEMU_BIN_NAME = QEMU_BIN_NAME = 'qemu-execve'
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exports.installQemuIfNeeded = Promise.method (emulated, logger) ->
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return false if not (emulated and platformNeedsQemu())
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hasQemu()
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.then (present) ->
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if !present
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logger.logInfo('Installing qemu for ARM emulation...')
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installQemu()
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.return(true)
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exports.qemuPathInContext = (context) ->
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path = require('path')
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binDir = path.join(context, '.resin')
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binPath = path.join(binDir, QEMU_BIN_NAME)
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path.relative(context, binPath)
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exports.copyQemu = (context) ->
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path = require('path')
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fs = require('mz/fs')
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# Create a hidden directory in the build context, containing qemu
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binDir = path.join(context, '.resin')
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binPath = path.join(binDir, QEMU_BIN_NAME)
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Promise.resolve(fs.mkdir(binDir))
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.catch(code: 'EEXIST', ->)
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.then ->
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getQemuPath()
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.then (qemu) ->
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new Promise (resolve, reject) ->
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read = fs.createReadStream(qemu)
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write = fs.createWriteStream(binPath)
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read
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.pipe(write)
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.on('error', reject)
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.on('finish', resolve)
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.then ->
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fs.chmod(binPath, '755')
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.then ->
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path.relative(context, binPath)
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hasQemu = ->
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fs = require('mz/fs')
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getQemuPath()
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.then(fs.stat)
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.return(true)
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.catchReturn(false)
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getQemuPath = ->
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resin = require('resin-sdk').fromSharedOptions()
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path = require('path')
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fs = require('mz/fs')
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resin.settings.get('binDirectory')
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.then (binDir) ->
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Promise.resolve(fs.mkdir(binDir))
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.catch(code: 'EEXIST', ->)
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.then ->
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path.join(binDir, QEMU_BIN_NAME)
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platformNeedsQemu = ->
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os = require('os')
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os.platform() == 'linux'
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installQemu = ->
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request = require('request')
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fs = require('fs')
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zlib = require('zlib')
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getQemuPath()
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.then (qemuPath) ->
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new Promise (resolve, reject) ->
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installStream = fs.createWriteStream(qemuPath)
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qemuUrl = "https://github.com/resin-io/qemu/releases/download/#{QEMU_VERSION}/#{QEMU_BIN_NAME}.gz"
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request(qemuUrl)
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.on('error', reject)
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.pipe(zlib.createGunzip())
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.on('error', reject)
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.pipe(installStream)
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.on('error', reject)
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.on('finish', resolve)
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