91 lines
2.8 KiB
JavaScript
91 lines
2.8 KiB
JavaScript
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var through = require('through2')
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, fs = require('fs')
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, p = require('path')
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, rm = require('rimraf')
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, mkdirp = require('mkdirp')
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, gutil = require('gulp-util')
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, PluginError = gutil.PluginError
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, File = gutil.File
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, PLUGIN_NAME = 'gulp-sym'
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// Plugin level function(dealing with files)
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function gulpSymlink(dest, options) {
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options = typeof options == 'object' ? options : {}
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options.force = options.force === undefined ? false : options.force
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if (!dest) {
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throw new PluginError({plugin: PLUGIN_NAME, message: "Missing destination link"})
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}
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if(dest instanceof Array) {
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//copy array because we'll shift values
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var destinations = dest.slice()
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}
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var stream = through.obj(function(source, enc, callback) {
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var self = this, symlink
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//resolving absolute path from source
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source.path = p.resolve(source.cwd, source.path)
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// source.relative = p.relative(source.cwd, source.path)
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//Array of destinations is passed
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symlink = destinations !== undefined ? destinations.shift() : dest
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//if dest is a function simply call it
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symlink = typeof dest == 'function' ? dest(source) : symlink
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//is the previous result a File instance ?
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symlink = symlink instanceof File ? symlink : new File({path: symlink})
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//resolving absolute path from dest
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symlink.path = p.resolve(symlink.cwd, symlink.path)
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//relative path between source and link
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var relative_symlink_source = p.relative(p.dirname(symlink.path), source.path)
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//check if the destination path exists
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var exists = fs.existsSync(symlink.path)
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//No force option, we can't override!
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if(exists && !options.force) {
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this.emit('error', new PluginError({plugin: PLUGIN_NAME, message: 'Destination file exists ('+dest+') - use force option to replace'}))
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this.push(source)
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return callback()
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} else {
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//remove destination if force option
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if(exists && options.force === true)
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rm.sync(symlink.path) //I'm aware that this is bad \o/
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//create destination directories
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if(!fs.existsSync(p.dirname(symlink.path)))
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mkdirp.sync(p.dirname(symlink.path))
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//this is a windows check as specified in http://nodejs.org/api/fs.html#fs_fs_symlink_srcpath_dstpath_type_callback
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source.stat = fs.statSync(source.path)
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fs.symlink(options.relative ? relative_symlink_source : source.path, symlink.path, source.stat.isDirectory() ? 'dir' : 'file', function(err) {
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if(err)
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self.emit('error', new PluginError({plugin: PLUGIN_NAME, message: err}))
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else
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gutil.log(PLUGIN_NAME + ':', gutil.colors.blue(options.relative ? relative_symlink_source : source.path), '→', gutil.colors.yellow(symlink.path))
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self.push(source)
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return callback()
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})
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}
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})
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return stream
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}
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module.exports = gulpSymlink
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