remove compiler-imports back to browser-solidity (still too specific to browser-solidity)

remix-solidity/package.json

@@ -23,8 +23,6 @@
     "fast-async": "^6.1.2",
     "remix-core": "latest",
     "remix-lib": "latest",
-    "js-base64": "^2.1.9",
-    "swarmgw": "^0.2.0",
     "webworkify": "^1.2.1",
     "solc": "^0.4.13",
     "standard": "^7.0.1",

remix-solidity/src/compiler/compiler-imports.js

-'use strict'
-// TODO: can just use request or fetch instead
-var $ = require('jquery')
-var base64 = require('js-base64').Base64
-var swarmgw = require('swarmgw')
-
-module.exports = {
-  handleGithubCall: function (root, path, cb) {
-    return $.getJSON('https://api.github.com/repos/' + root + '/contents/' + path)
-      .done(function (data) {
-        if ('content' in data) {
-          cb(null, base64.decode(data.content), root + '/' + path)
-        } else {
-          cb('Content not received')
-        }
-      })
-      .fail(function (xhr, text, err) {
-        // NOTE: on some browsers, err equals to '' for certain errors (such as offline browser)
-        cb(err || 'Unknown transport error')
-      })
-  },
-
-  handleSwarmImport: function (url, cb) {
-    swarmgw.get(url, function (err, content) {
-      cb(err, content, url)
-    })
-  },
-
-  handleIPFS: function (url, cb) {
-    // replace ipfs:// with /ipfs/
-    url = url.replace(/^ipfs:\/\/?/, 'ipfs/')
-
-    return $.ajax({ type: 'GET', url: 'https://gateway.ipfs.io/' + url })
-      .done(function (data) {
-        cb(null, data, url)
-      })
-      .fail(function (xhr, text, err) {
-        // NOTE: on some browsers, err equals to '' for certain errors (such as offline browser)
-        cb(err || 'Unknown transport error')
-      })
-  },
-
-  handlers: function () {
-    return [
-      { type: 'github', match: /^(https?:\/\/)?(www.)?github.com\/([^/]*\/[^/]*)\/(.*)/, handler: (match, cb) => { this.handleGithubCall(match[3], match[4], cb) } },
-      { type: 'swarm', match: /^(bzz[ri]?:\/\/?.*)$/, handler: (match, cb) => { this.handleSwarmImport(match[1], cb) } },
-      { type: 'ipfs', match: /^(ipfs:\/\/?.+)/, handler: (match, cb) => { this.handleIPFS(match[1], cb) } }
-    ]
-  },
-
-  import: function (url, cb) {
-    var handlers = this.handlers()
-
-    var found = false
-    handlers.forEach(function (handler) {
-      if (found) {
-        return
-      }
-
-      var match = handler.match.exec(url)
-      if (match) {
-        found = true
-
-        // TODO: this needs to be moved to the caller
-        $('#output').append($('<div/>').append($('<pre/>').text('Loading ' + url + ' ...')))
-        handler.handler(match, function (err, content, cleanUrl) {
-          if (err) {
-            cb('Unable to import "' + cleanUrl + '": ' + err)
-            return
-          }
-
-          cb(null, content, cleanUrl, handler.type, url)
-        })
-      }
-    })
-
-    if (found) {
-      return
-    } else if (/^[^:]*:\/\//.exec(url)) {
-      cb('Unable to import "' + url + '": Unsupported URL schema')
-    } else {
-      cb('Unable to import "' + url + '": File not found')
-    }
-  }
-}