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Copy pathrun.js
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108 lines (93 loc) · 2.86 KB
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'use strict';
const BbPromise = require('bluebird');
const path = require('path');
const webpack = require('webpack');
const utils = require('./utils');
module.exports = {
loadHandler(stats, functionId, purge) {
const handler = this.serverless.service.functions[functionId].handler.split('.');
const moduleFileName = `${handler[0]}.js`;
const handlerFilePath = path.join(
path.resolve(stats.compilation.options.output.path),
moduleFileName
);
if (purge) {
utils.purgeCache(handlerFilePath);
}
//set environment before requiring, as imported modules will be immediately
this.setEnvironmentVars(functionId);
const module = require(handlerFilePath);
const functionObjectPath = handler.slice(1);
let func = module;
for (let p of functionObjectPath) {
func = func[p];
}
return func;
},
getEvent() {
return this.options.path
? this.serverless.utils.readFileSync(this.options.path)
: null; // TODO use get-stdin instead
},
getContext(functionName) {
return {
awsRequestId: utils.guid(),
invokeid: utils.guid(),
logGroupName: `/aws/lambda/${functionName}`,
logStreamName: '2016/02/14/[HEAD]13370a84ca4ed8b77c427af260',
functionVersion: '$LATEST',
isDefaultFunctionVersion: true,
functionName: functionName,
memoryLimitInMB: '1024',
};
},
setEnvironmentVars(functionName) {
const providerEnvVars = this.serverless.service.provider.environment || {};
const functionEnvVars = this.serverless.service.functions[functionName].environment || {};
Object.assign(process.env, providerEnvVars, functionEnvVars);
},
run(stats) {
const functionName = this.options.function;
this.serverless.cli.log(`Run function ${functionName}...`);
const handler = this.loadHandler(stats, functionName);
const event = this.getEvent();
const context = this.getContext(functionName);
return new BbPromise((resolve, reject) => handler(
event,
context,
(err, res) => {
if (err) {
reject(err);
} else {
resolve(res);
}
}
));
},
watch() {
const functionName = this.options.function;
this.serverless.cli.log(`Watch function ${functionName}...`);
const compiler = webpack(this.webpackConfig);
compiler.watch({}, (err, stats) => {
if (err) {
throw err;
}
this.serverless.cli.log(`Run function ${functionName}...`);
const handler = this.loadHandler(stats, functionName, true);
const event = this.getEvent();
const context = this.getContext(functionName);
handler(
event,
context,
(err, res) => {
if (err) {
throw err;
} else {
this.serverless.cli.consoleLog(res);
}
}
)
});
return BbPromise.resolve();
},
};