64 lines
2.3 KiB
JavaScript
64 lines
2.3 KiB
JavaScript
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'use strict'
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const path = require('path')
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const log = require('./log')
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function findNodeDirectory (scriptLocation, processObj) {
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// set dirname and process if not passed in
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// this facilitates regression tests
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if (scriptLocation === undefined) {
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scriptLocation = __dirname
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}
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if (processObj === undefined) {
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processObj = process
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}
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// Have a look to see what is above us, to try and work out where we are
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const npmParentDirectory = path.join(scriptLocation, '../../../..')
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log.verbose('node-gyp root', 'npm_parent_directory is ' +
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path.basename(npmParentDirectory))
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let nodeRootDir = ''
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log.verbose('node-gyp root', 'Finding node root directory')
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if (path.basename(npmParentDirectory) === 'deps') {
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// We are in a build directory where this script lives in
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// deps/npm/node_modules/node-gyp/lib
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nodeRootDir = path.join(npmParentDirectory, '..')
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log.verbose('node-gyp root', 'in build directory, root = ' +
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nodeRootDir)
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} else if (path.basename(npmParentDirectory) === 'node_modules') {
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// We are in a node install directory where this script lives in
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// lib/node_modules/npm/node_modules/node-gyp/lib or
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// node_modules/npm/node_modules/node-gyp/lib depending on the
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// platform
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if (processObj.platform === 'win32') {
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nodeRootDir = path.join(npmParentDirectory, '..')
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} else {
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nodeRootDir = path.join(npmParentDirectory, '../..')
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}
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log.verbose('node-gyp root', 'in install directory, root = ' +
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nodeRootDir)
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} else {
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// We don't know where we are, try working it out from the location
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// of the node binary
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const nodeDir = path.dirname(processObj.execPath)
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const directoryUp = path.basename(nodeDir)
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if (directoryUp === 'bin') {
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nodeRootDir = path.join(nodeDir, '..')
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} else if (directoryUp === 'Release' || directoryUp === 'Debug') {
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// If we are a recently built node, and the directory structure
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// is that of a repository. If we are on Windows then we only need
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// to go one level up, everything else, two
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if (processObj.platform === 'win32') {
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nodeRootDir = path.join(nodeDir, '..')
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} else {
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nodeRootDir = path.join(nodeDir, '../..')
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}
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}
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// Else return the default blank, "".
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}
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return nodeRootDir
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}
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module.exports = findNodeDirectory
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