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feat:support multiple servers #163

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merged 5 commits into from
Dec 6, 2018
Merged

feat:support multiple servers #163

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86552c3
support multiple servers
xiaoyuhen Dec 2, 2018
7fb95d4
use array index instead object mapping
xiaoyuhen Dec 4, 2018
0a7ca8b
update readme
xiaoyuhen Dec 4, 2018
66145b9
fix grammar
xiaoyuhen Dec 4, 2018
a07f733
docs(readme): improve readme
gregberge Dec 6, 2018
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17 changes: 17 additions & 0 deletions packages/jest-dev-server/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,23 @@ module.exports = async function globalSetup() {
}
```

`jest-dev-server` can also able to launch several servers

```js
module.exports = {
server: [
{
command: 'node server.js',
port: 4444,
},
{
command: 'node server2.js',
port: 4445,
},
]
}
```

```js
// global-teardown.js
const { teardown: teardownDevServer } = require('jest-dev-server')
Expand Down
24 changes: 17 additions & 7 deletions packages/jest-dev-server/src/global.js
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Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,7 @@ export class JestDevServerError extends Error {
}
}

let server
const servers = []

function logProcDetection(proc, port) {
console.log(
Expand All @@ -55,15 +55,15 @@ async function killProc(proc) {
console.log(chalk.green(`Successfully killed process ${proc.name}`))
}

function runServer(config = {}) {
function runServer(config = {}, index) {
if (!config.command) {
throw new JestDevServerError(
'You must define a `command`',
ERROR_NO_COMMAND,
)
}

server = spawnd(config.command, {
servers[index] = spawnd(config.command, {
shell: true,
env: process.env,
cwd: cwd(),
Expand All @@ -73,7 +73,7 @@ function runServer(config = {}) {
if (config.debug) {
// eslint-disable-next-line no-console
console.log(chalk.magentaBright('\nJest dev-server output:'))
server.stdout.pipe(serverLogPrefixer).pipe(process.stdout)
servers[index].stdout.pipe(serverLogPrefixer).pipe(process.stdout)
}
}

Expand Down Expand Up @@ -103,7 +103,15 @@ function getIsPortTaken(port) {
})
}

export async function setup(providedConfig) {
export async function setup(providedConfigs) {
// Compatible with older versions
const configs = Array.isArray(providedConfigs) ? providedConfigs : [providedConfigs]
await Promise.all(
configs.map((providedConfig, index) => setupJestServer(providedConfig, index))
)
}

export async function setupJestServer(providedConfig, index) {
const config = { ...DEFAULT_CONFIG, ...providedConfig }

const usedPortHandlers = {
Expand Down Expand Up @@ -166,7 +174,7 @@ export async function setup(providedConfig) {
}
}

runServer(config)
runServer(config, index)

if (config.port) {
const { launchTimeout } = config
Expand Down Expand Up @@ -197,5 +205,7 @@ export async function setup(providedConfig) {
}

export async function teardown() {
if (server) await server.destroy()
if (servers.length) {
await Promise.all(servers.map(server => server.destroy()))
}
}