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Improve dapp imports to allow alternate syntax for importing contracts 

* Now supports alternate import statements:
 * import {Token} from 'Embark/contracts';
 * import * as Contracts from 'Embark/contracts';
as well as the existing syntax:
 * import Token from 'Embark/contracts/Token';

* Contracts  js files moved from .embark to .embark/contracts
* .embark/contracts/index.js generated on the fly which requires all contracts in .embark/contract automatically and then creates a module.exports with each of them.
This commit is contained in:
Eric Mastro 2018-05-21 21:43:36 +10:00
parent 380b2258e7
commit d4c04bbed7
2 changed files with 30 additions and 9 deletions
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7
lib/i18n/locales/en.json
View File

@ -109,5 +109,10 @@
"{{className}} has code associated to it but it's configured as an instanceOf {{parentContractName}}": "{{className}} has code associated to it but it's configured as an instanceOf {{parentContractName}}",
"downloading {{packageName}} {{version}}....": "downloading {{packageName}} {{version}}....",
"Swarm node is offline...": "Swarm node is offline...",
"Swarm node detected...": "Swarm node detected..."
"Swarm node detected...": "Swarm node detected...",
"Cannot find file %s Please ensure you are running this command inside the Dapp folder": "Cannot find file %s Please ensure you are running this command inside the Dapp folder",
"finished building": "finished building",
"compiling Vyper contracts": "compiling Vyper contracts",
"Vyper exited with error code ": "Vyper exited with error code ",
"attempted to deploy %s without specifying parameters": "attempted to deploy %s without specifying parameters"
}

28
lib/pipeline/pipeline.js
View File

@ -36,6 +36,7 @@ class Pipeline {
function createImportList(next) {
importsList["Embark/EmbarkJS"] = fs.dappPath(".embark", 'embark.js');
importsList["Embark/web3"] = fs.dappPath(".embark", 'web3_instance.js');
importsList["Embark/contracts"] = fs.dappPath(".embark/contracts", '');
self.plugins.getPluginsProperty('imports', 'imports').forEach(function (importObject) {
let [importName, importLocation] = importObject;
@ -46,13 +47,28 @@ class Pipeline {
},
function writeContracts(next) {
self.events.request('contracts:list', (contracts) => {
async.each(contracts, (contract, eachCb) => {
self.events.request('code-generator:contract', contract.className, (contractCode) => {
let filePath = fs.dappPath(".embark", contract.className + '.js');
importsList["Embark/contracts/" + contract.className] = filePath;
fs.writeFile(filePath, contractCode, eachCb);
// ensure the .embark/contracts directory exists (create if not exists)
fs.mkdirp(fs.dappPath(".embark/contracts", ''), (err) => {
if(err) return next(err);
async.each(contracts, (contract, eachCb) => {
self.events.request('code-generator:contract', contract.className, (contractCode) => {
let filePath = fs.dappPath(".embark/contracts", contract.className + '.js');
importsList["Embark/contracts/" + contract.className] = filePath;
fs.writeFile(filePath, contractCode, eachCb);
});
}, function(){
// create a file .embark/contracts/index.js that requires all files in the .embark/contracts directory
// except for itself. Used to enable alternate import syntax:
// e.g. import {Token} from 'Embark/contracts'
// e.g. import * as Contracts from 'Embark/contracts'
let importsHelper = `module.exports = (ctx => {
let keys = ctx.keys();
let values = keys.map(ctx);
return keys.reduce((o, k, i) => { o[k.replace('./', '').replace('.js', '')] = values[i].default; return o; }, {});
})(require.context('./', true, /^(?!.*index).*\.js$/));`;
fs.writeFile(fs.dappPath('.embark/contracts/index.js'), importsHelper, next);
});
}, next);
});
});
},
function assetFileWrite(next) {