Add Kokoro continuous integration config and badges (#465)

* Add Kokoro continuous integration config and badges

* Fix indentation and other PR comments

Author: chingor13

.kokoro/continuous/common.cfg

@@ -0,0 +1,24 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Build logs will be here
+action {
+  define_artifacts {
+    regex: "**/*sponge_log.xml"
+  }
+}
+
+# Download trampoline resources.
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
+
+# Use the trampoline script to run in docker.
+build_file: "google-http-java-client/.kokoro/trampoline.sh"
+
+env_vars: {
+  key: "TRAMPOLINE_BUILD_FILE"
+  value: "github/google-http-java-client/.kokoro/build.sh"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "test"
+}

.kokoro/continuous/java10.cfg

@@ -0,0 +1,7 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java10"
+}

.kokoro/continuous/java7.cfg

@@ -0,0 +1,7 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java7"
+}

.kokoro/continuous/java8.cfg

@@ -0,0 +1,7 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}

.kokoro/presubmit/common.cfg

@@ -14,11 +14,11 @@ gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 build_file: "google-http-java-client/.kokoro/trampoline.sh"
 
 env_vars: {
-    key: "TRAMPOLINE_BUILD_FILE"
-    value: "github/google-http-java-client/.kokoro/build.sh"
+  key: "TRAMPOLINE_BUILD_FILE"
+  value: "github/google-http-java-client/.kokoro/build.sh"
 }
 
 env_vars: {
-    key: "JOB_TYPE"
-    value: "test"
+  key: "JOB_TYPE"
+  value: "test"
 }

.kokoro/presubmit/java10.cfg

@@ -2,6 +2,6 @@
 
 # Configure the docker image for kokoro-trampoline.
 env_vars: {
-    key: "TRAMPOLINE_IMAGE"
-    value: "gcr.io/cloud-devrel-kokoro-resources/java10"
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java10"
 }

.kokoro/presubmit/java7.cfg

@@ -2,6 +2,6 @@
 
 # Configure the docker image for kokoro-trampoline.
 env_vars: {
-    key: "TRAMPOLINE_IMAGE"
-    value: "gcr.io/cloud-devrel-kokoro-resources/java7"
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java7"
 }

.kokoro/presubmit/java8.cfg

@@ -2,6 +2,6 @@
 
 # Configure the docker image for kokoro-trampoline.
 env_vars: {
-    key: "TRAMPOLINE_IMAGE"
-    value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
 }

README.md

@@ -36,7 +36,14 @@ are welcome.
 - [Release Notes](https://developers.google.com/api-client-library/java/google-http-java-client/release-notes)
 - [Support (Questions, Bugs)](https://developers.google.com/api-client-library/java/google-http-java-client/support)
 
+## CI Status
+
+Java Version | Status
+------------ | ------
+Java 7 | [![Kokoro CI](http://storage.googleapis.com/cloud-devrel-public/java/badges/google-http-java-client/java7.svg)](https://storage.googleapis.com/cloud-devrel-public/java/badges/google-http-java-client/java7.html)
+Java 8 | [![Kokoro CI](http://storage.googleapis.com/cloud-devrel-public/java/badges/google-http-java-client/java8.svg)](https://storage.googleapis.com/cloud-devrel-public/java/badges/google-http-java-client/java8.html)
+Java 10 | [![Kokoro CI](http://storage.googleapis.com/cloud-devrel-public/java/badges/google-http-java-client/java10.svg)](https://storage.googleapis.com/cloud-devrel-public/java/badges/google-http-java-client/java10.html)
+
 ## Links
 
-- [Announcements](http://google-http-java-client.blogspot.com/)
 - [Discuss](http://groups.google.com/group/google-http-java-client)