adds https proxy support.

README.md

@@ -133,6 +133,12 @@ If you need to customize something or support a different CI service, you can co
 
 If you have `COVERALLS_REPO_TOKEN` set and you're using Travis-CI not Travis-Pro, you need to set `CI_NAME=travis-ci`.
 
+### HTTPS proxy settings
+You can set https proxy if needed.
+Environment variables to configure:
+- `https.proxyHost`
+- `https.proxyPort` (default value is **443**)
+
 ## Examples
 
 - https://github.com/strawjs/straw-android

src/main/groovy/org/kt3k/gradle/plugin/coveralls/CoverallsTask.groovy

@@ -38,7 +38,7 @@ class CoverallsTask extends DefaultTask {
 	void postJsonToUrl(String json, String url) {
 
 		HTTPBuilder http = new HTTPBuilder(url)
-
+		setProxy(http)
 		http.request(POST) { req ->
 
 			req.entity = MultipartEntityBuilder.create().addBinaryBody('json_file', json.getBytes('UTF-8'), ContentType.APPLICATION_JSON, 'json_file').build()
@@ -57,6 +57,13 @@ class CoverallsTask extends DefaultTask {
 		}
 	}
 
+	private setProxy(HTTPBuilder http) {
+		def proxyInfo = ProxyInfoFactory.createFromEnvVar this.env
+		if (proxyInfo) {
+			http.setProxy(proxyInfo.httpsProxyHost, proxyInfo.httpsProxyPort, "https")
+		}
+	}
+
 	void saveJsonToFile(String json, String saveFilePath) {
 		try {
 			File reportFile = new File(saveFilePath)

src/main/groovy/org/kt3k/gradle/plugin/coveralls/domain/ProxyInfo.groovy

@@ -0,0 +1,28 @@
+package org.kt3k.gradle.plugin.coveralls.domain
+
+import groovy.transform.TupleConstructor
+
+@TupleConstructor
+class ProxyInfo {
+	String httpsProxyHost
+	Integer httpsProxyPort
+
+	boolean equals(o) {
+		if (this.is(o)) return true
+		if (getClass() != o.class) return false
+
+		ProxyInfo proxyInfo = (ProxyInfo) o
+
+		if (httpsProxyHost != proxyInfo.httpsProxyHost) return false
+		if (httpsProxyPort != proxyInfo.httpsProxyPort) return false
+
+		return true
+	}
+
+	int hashCode() {
+		int result
+		result = 31 * result + (httpsProxyHost != null ? httpsProxyHost.hashCode() : 0)
+		result = 31 * result + (httpsProxyPort != null ? httpsProxyPort.hashCode() : 0)
+		return result
+	}
+}

src/main/groovy/org/kt3k/gradle/plugin/coveralls/domain/ProxyInfoFactory.groovy

@@ -0,0 +1,25 @@
+package org.kt3k.gradle.plugin.coveralls.domain
+
+import org.gradle.api.logging.Logger
+import org.gradle.api.logging.Logging
+
+
+class ProxyInfoFactory {
+
+	public static ProxyInfo createFromEnvVar(Map<String, String> env) {
+		Logger logger = Logging.getLogger('coveralls-logger')
+		if (httpsProxySet(env)) {
+			def host = env.get('https.proxyHost')
+			def port = env.get('https.proxyPort', "443").toInteger()
+			logger.info 'Using HTTPS proxy $host:$port'
+			return new ProxyInfo(
+					httpsProxyHost: host,
+					httpsProxyPort: port
+			)
+		}
+	}
+
+	private static boolean httpsProxySet(Map<String, String> env) {
+		env.get('https.proxyHost') != null
+	}
+}

src/test/groovy/org/kt3k/gradle/plugin/coveralls/domain/ProxyInfoFactoryTest.groovy

@@ -0,0 +1,39 @@
+package org.kt3k.gradle.plugin.coveralls.domain
+
+import org.junit.Test
+
+import static org.junit.Assert.assertEquals
+
+public class ProxyInfoFactoryTest {
+
+	@Test
+	void testCreateFromEnvVarHostAndPort() {
+		ProxyInfo proxyInfo = ProxyInfoFactory
+				.createFromEnvVar('https.proxyHost': 'some host',
+				'https.proxyPort': '8080')
+		assertEquals 'some host', proxyInfo.httpsProxyHost
+		assertEquals 8080, proxyInfo.httpsProxyPort
+	}
+
+	@Test
+	void testCreateFromEnvVarHostAndDefaultPort() {
+		ProxyInfo proxyInfo = ProxyInfoFactory
+				.createFromEnvVar('https.proxyHost': 'some host')
+		assertEquals 'some host', proxyInfo.httpsProxyHost
+		assertEquals 443, proxyInfo.httpsProxyPort
+	}
+
+	@Test
+	void testCreateFromEnvVarNoHost() {
+		ProxyInfo proxyInfo = ProxyInfoFactory
+				.createFromEnvVar [:]
+		assert proxyInfo == null
+	}
+
+	@Test
+	void testCreateFromEnvVarOnlyPort() {
+		ProxyInfo proxyInfo = ProxyInfoFactory
+				.createFromEnvVar('https.proxyPort': '8080')
+		assert proxyInfo == null
+	}
+}