Add config command & related

index.d.ts

@@ -30,6 +30,12 @@ export declare function buildMany(services: String[], options: IDockerComposeBui
 
 export declare function buildOne(service: String, options: IDockerComposeOptions): Promise<IDockerComposeResult>;
 
+export declare function config(options: IDockerComposeOptions): Promise<IDockerComposeResult>;
+
+export declare function configServices(options: IDockerComposeOptions): Promise<IDockerComposeResult>;
+
+export declare function configVolumes(options: IDockerComposeOptions): Promise<IDockerComposeResult>;
+
 export declare function ps(options: IDockerComposeOptions): Promise<IDockerComposeResult>;
 
 export declare function push(options: IDockerComposePushOptions): Promise<IDockerComposeResult>;

index.js

@@ -189,7 +189,6 @@ const rm = function (options) {
  * @return {object} std.out / std.err
  */
 const exec = function (container, command, options) {
-
   const args = command.split(/\s+/);
 
   return execCompose('exec', [ '-T', container ].concat(args), options);
@@ -270,6 +269,51 @@ const buildOne = function (service, options) {
   return execCompose('build', [ service ], options);
 };
 
+/**
+ * Config command
+ * @param {object} options
+ * @param {string} options.cwd
+ * @param {boolean} [options.log]
+ * @param {?(string|string[])} [options.config]
+ * @param {?object} [options.env]
+ * @param {?(string[]|Array<string|string[]>)} [options.composeOptions]
+ *
+ * @return {object} std.out / std.err
+ */
+const config = function (options) {
+  return execCompose('config', [], options);
+};
+
+/**
+ * Config command with --services option
+ * @param {object} options
+ * @param {string} options.cwd
+ * @param {boolean} [options.log]
+ * @param {?(string|string[])} [options.config]
+ * @param {?object} [options.env]
+ * @param {?(string[]|Array<string|string[]>)} [options.composeOptions]
+ *
+ * @return {object} std.out / std.err
+ */
+const configServices = function (options) {
+  return execCompose('config', [ '--services' ], options);
+};
+
+/**
+ * Config command with --volumes option
+ * @param {object} options
+ * @param {string} options.cwd
+ * @param {boolean} [options.log]
+ * @param {?(string|string[])} [options.config]
+ * @param {?object} [options.env]
+ * @param {?(string[]|Array<string|string[]>)} [options.composeOptions]
+ *
+ * @return {object} std.out / std.err
+ */
+const configVolumes = function (options) {
+  return execCompose('config', [ '--volumes' ], options);
+};
+
 /**
  * Ps command
  * @param {object} options
@@ -369,9 +413,10 @@ const logs = function (service, options) {
  * @param {?object} [options.env]
  * @param {?(string[]|Array<string|string[]>)} [options.composeOptions]
  */
-const port = function(service, containerPort, options) {
+const port = function (service, containerPort, options) {
-  const args = [service, containerPort]
+  const args = [ service, containerPort ];
-  return execCompose('port', args, options)
+
+  return execCompose('port', args, options);
 };
 
 module.exports = {
@@ -392,6 +437,9 @@ module.exports = {
   buildMany,
   buildOne,
   ps,
+  config,
+  configServices,
+  configVolumes,
   push,
-  port,
+  port
 };

readme.md

@@ -35,6 +35,9 @@ npm install --save-dev docker-compose
 * `restartMany(services, options)` - Restart services
 * `restartOne(service, options)` - Restart service
 * `ps(options)` - Lists containers information
+* `config(options)` - Validates configuration files and returns configuration yaml
+* `configServices(options)` - Returns list of services defined in configuration files
+* `configVolumes(options)` - Returns list of volumes defined in configuration files
 
 All commands return a `Promise({object})` with an stdout and stderr strings
 ```javascript

test/docker-compose-42.yml

@@ -5,3 +5,7 @@ services:
     image: alpine
     volumes:
       - ./volume:/mountedvolume
+      - db-data:/mountedsecondvolume
+
+volumes:
+  db-data:

test/index.js

@@ -147,7 +147,7 @@ test('ensure custom ymls are working', async assert => {
   await compose.upAll({ cwd, log, config });
   assert.true(await isContainerRunning('/compose_test_mongodb_2'));
 
-   // config & [config] are the same thing, ensures that multiple configs are handled properly
+  // config & [config] are the same thing, ensures that multiple configs are handled properly
   await compose.kill({ cwd, log, config: [ config ]});
   assert.false(await isContainerRunning('/compose_test_mongodb_2'));
   assert.end();
@@ -265,6 +265,28 @@ test('teardown', async assert => {
   assert.end();
 });
 
+test('config show data for docker-compose files', async assert => {
+  const std = await compose.config({ cwd: path.join(__dirname), log: true, config: 'docker-compose-42.yml' });
+
+  assert.false(std.err);
+  assert.true(std.out.includes('some-service'));
+  assert.true(std.out.includes('test/volume:/mountedvolume:rw'));
+});
+
+test('config show data for docker-compose files', async assert => {
+  const std = await compose.configServices({ cwd: path.join(__dirname), log: true, config: 'docker-compose-42.yml' });
+
+  assert.false(std.err);
+  assert.true(std.out.includes('some-service'));
+});
+
+test('config show data for docker-compose files', async assert => {
+  const std = await compose.configVolumes({ cwd: path.join(__dirname), log: true, config: 'docker-compose-42.yml' });
+
+  assert.false(std.err);
+  assert.true(std.out.includes('db-data'));
+});
+
 test('ps shows status data for started containers', async assert => {
   await compose.upAll({ cwd: path.join(__dirname), log: true });
 
@@ -326,10 +348,11 @@ test('returns the port for a started service', async assert => {
   const config = {
     cwd: path.join(__dirname),
     config: './docker-compose-2.yml'
-  }
+  };
+
   await compose.upAll(config);
   const port = await compose.port('db', 5432, config);
 
   assert.true(port.out.match(/.*:[0-9]{1,5}/));
   assert.end();
-})
+});