Module reorganization and fixes to Travis

Signed-off-by: Juraci Paixão Kröhling <juraci@kroehling.de>

.gitignore

@@ -1,11 +1,11 @@
-/target*
-/.classpath
-/.project
-/.settings
-/tomcat.*
-/.idea
-/*.iml
+target
+bin
+.classpath
+.project
+.settings
+tomcat.*
+.idea
+*.iml
 .classpath
 .project
 *.class
-target/*

.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1 @@
+distributionUrl=https://repo1.maven.org/maven2/org/apache/maven/apache-maven/3.3.9/apache-maven-3.3.9-bin.zip

.travis.yml

@@ -1,33 +1,42 @@
+sudo: required
+dist: trusty
+
 language: java
 jdk:
 - oraclejdk8
+
+cache:
+  directories:
+  - $HOME/.m2/repository
+
 before_install:
-- openssl aes-256-cbc -K $encrypted_404912dc11ca_key -iv $encrypted_404912dc11ca_iv
-  -in codesigning.asc.enc -out codesigning.asc -d
-before_script: gpg --fast-import codesigning.asc
-script: mvn package -P build-extras
-deploy:
-  - provider: releases
-    api_key:
-      secure: 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
-    file_glob: true
-    file:
-    - "/home/travis/build/iotaledger/iota.lib.java/target/jota*.jar"
-    - "/home/travis/build/iotaledger/iota.lib.java/target/jota*.jar-with-dependencies"
-    - "/home/travis/build/iotaledger/iota.lib.java/target/jota*.jar.asc"
-    - "/home/travis/build/iotaledger/iota.lib.java/target/jota*-sources.jar"
-    - "/home/travis/build/iotaledger/iota.lib.java/target/jota*-sources.jar.asc"
-    - "/home/travis/build/iotaledger/iota.lib.java/target/jota*-javadoc.jar"
-    - "/home/travis/build/iotaledger/iota.lib.java/target/jota*-javadoc.jar.asc"
-    skip_cleanup: true
-    on:
-      tags: true
-      repo: iotaledger/iota.lib.java
-      all_branches: true
-  - provider: script
-    script: chmod u+x .travis/push-jdoc-gh-pages.sh && .travis/push-jdoc-gh-pages.sh
-    skip_cleanup: true
-    on:
-      tags: true
-      repo: iotaledger/iota.lib.java
-      all_branches: true
+  # setup https authentication credentials, used by ./mvnw release:prepare
+  - git config credential.helper "store --file=.git/credentials"
+  - echo "https://$GH_TOKEN:@github.com" > .git/credentials
+
+install:
+  # Override default travis to use the maven wrapper
+  - ./mvnw install -DskipTests=true -Dmaven.javadoc.skip=true -B -V
+
+script:
+  - .travis/publish.sh
+
+branches:
+  except:
+    - /^[0-9]/
+
+after_success:
+  - if [ "$TRAVIS_BRANCH" == "master" ]; then ./travis/push-jdoc-gh-pages.sh ; fi
+
+env:
+  global:
+  # Ex. travis encrypt -r org/repo GH_TOKEN=XXX-https://github.com/settings/tokens-XXX
+  - secure: "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"
+  # Ex. travis encrypt -r org/repo SONATYPE_USER=your_sonatype_account
+  - secure: "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"
+  # Ex. travis encrypt -r org/repo SONATYPE_PASSWORD=your_sonatype_password
+  - secure: "B1k5jjqMB2EZARpCqfk1WoLGNipMF5hBbz1RoNMiIOjrv5kh7QDqpCgDOahAPpo9LnciM1Znpq8OTrni53qGAhYhOUOOyxUgqiSx3nknoyvxMRC20zjSDUAFaqwcbTGwMFnguihsAEGAXmLT4OxJVEwUE4okELmkqls7xaMuCsEDeAk2mEdmP951DBr7P1hlkC6nkv+JwWgOmtoeCylUH1Uulv1nVbtxlZQ1CccOsFEh9DLGZvtra01oLj2V7sS899sHlbGS48R4e+SoWz4Ui3Xg3n5zTiWj3iL1GLGOZzy4DWRuxggl1HgOmZWhNnx9TLBi4r0MRUQIu7iMinfV3SqJfQQgjZ6hsvT2Xuzg2UuEDF126oxzAxrkpwDvd1VtE6NRORrIAISU0Blmfg9HFII/p5ZBKUtDwxgskKul049p1Du5dHc9taiuGR+EvzLzuWH4FKfhnwmUBLEPF/3V0g+EN1F7vV/SxlDipbvdLEZIVktnk5RCkey4u0+sSiJK1bD4Dx1aAbRdgEbDhcJf2zJY05+CGZEE0ikQ0MEkLx860g/YOiSee4EcZ3W4Wvo1RXaPOrzbug9zLlNfbRtqkJFYS8lGValfz8Iw0o4a5zIQtO/Y0corK8s8PZLRU+1JxBtT27Dg72OGjYaLoVOltEJDqHGWICTj4kNrLpO/waA="
+  # Ex. travis encrypt -r org/repo BINTRAY_USER=your_github_account
+  - secure: "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"
+  # Ex. travis encrypt -r org/repo BINTRAY_KEY=xxx-https://bintray.com/profile/edit-xxx
+  - secure: "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"

.travis/publish.sh

@@ -0,0 +1,117 @@
+set -euo pipefail
+set -x
+
+build_started_by_tag() {
+  if [ "${TRAVIS_TAG}" == "" ]; then
+    echo "[Publishing] This build was not started by a tag, publishing snapshot"
+    return 1
+  else
+    echo "[Publishing] This build was started by the tag ${TRAVIS_TAG}, publishing release"
+    return 0
+  fi
+}
+
+is_pull_request() {
+  if [ "${TRAVIS_PULL_REQUEST}" != "false" ]; then
+    echo "[Not Publishing] This is a Pull Request"
+    return 0
+  else
+    echo "[Publishing] This is not a Pull Request"
+    return 1
+  fi
+}
+
+is_travis_branch_master() {
+  if [ "${TRAVIS_BRANCH}" = master ]; then
+    echo "[Publishing] Travis branch is master"
+    return 0
+  else
+    echo "[Not Publishing] Travis branch is not master"
+    return 1
+  fi
+}
+
+check_travis_branch_equals_travis_tag() {
+  #Weird comparison comparing branch to tag because when you 'git push --tags'
+  #the branch somehow becomes the tag value
+  #github issue: https://github.com/travis-ci/travis-ci/issues/1675
+  if [ "${TRAVIS_BRANCH}" != "${TRAVIS_TAG}" ]; then
+    echo "Travis branch does not equal Travis tag, which it should, bailing out."
+    echo "  github issue: https://github.com/travis-ci/travis-ci/issues/1675"
+    exit 1
+  else
+    echo "[Publishing] Branch (${TRAVIS_BRANCH}) same as Tag (${TRAVIS_TAG})"
+  fi
+}
+
+check_release_tag() {
+    tag="${TRAVIS_TAG}"
+    if [[ "$tag" =~ ^[[:digit:]]+\.[[:digit:]]+\.[[:digit:]]+$ ]]; then
+        echo "Build started by version tag $tag. During the release process tags like this"
+        echo "are created by the 'release' Maven plugin. Nothing to do here."
+        exit 0
+    elif [[ ! "$tag" =~ ^release-[[:digit:]]+\.[[:digit:]]+\.[[:digit:]]+$ ]]; then
+        echo "You must specify a tag of the format 'release-0.0.0' to release this project."
+        echo "The provided tag ${tag} doesn't match that. Aborting."
+        exit 1
+    fi
+}
+
+is_release_commit() {
+  project_version=$(./mvnw help:evaluate -N -Dexpression=project.version|grep -v '\[')
+  if [[ "$project_version" =~ ^[[:digit:]]+\.[[:digit:]]+\.[[:digit:]]+$ ]]; then
+    echo "Build started by release commit $project_version. Will synchronize to maven central."
+    return 0
+  else
+    return 1
+  fi
+}
+
+release_version() {
+    echo "${TRAVIS_TAG}" | sed 's/^release-//'
+}
+
+safe_checkout_master() {
+  # We need to be on a branch for release:perform to be able to create commits, and we want that branch to be master.
+  # But we also want to make sure that we build and release exactly the tagged version, so we verify that the remote
+  # master is where our tag is.
+  git checkout -B master
+  git fetch origin master:origin/master
+  commit_local_master="$(git show --pretty='format:%H' master)"
+  commit_remote_master="$(git show --pretty='format:%H' origin/master)"
+  if [ "$commit_local_master" != "$commit_remote_master" ]; then
+    echo "Master on remote 'origin' has commits since the version under release, aborting"
+    exit 1
+  fi
+}
+
+#----------------------
+# MAIN
+#----------------------
+
+if ! is_pull_request && build_started_by_tag; then
+  check_travis_branch_equals_travis_tag
+  check_release_tag
+fi
+
+./mvnw install -nsu
+
+# If we are on a pull request, our only job is to run tests, which happened above via ./mvnw install
+if is_pull_request; then
+  true
+# If we are on master, we will deploy the latest snapshot or release version
+#   - If a release commit fails to deploy for a transient reason, delete the broken version from bintray and click rebuild
+elif is_travis_branch_master; then
+  ./mvnw --batch-mode -s ./.settings.xml -Prelease -nsu -DskipTests deploy
+
+  # If the deployment succeeded, sync it to Maven Central. Note: this needs to be done once per project, not module, hence -N
+  if is_release_commit; then
+    ./mvnw --batch-mode -s ./.settings.xml -nsu -N io.zipkin.centralsync-maven-plugin:centralsync-maven-plugin:sync
+  fi
+
+# If we are on a release tag, the following will update any version references and push a version tag for deployment.
+elif build_started_by_tag; then
+  safe_checkout_master
+  ./mvnw --batch-mode -s ./.settings.xml -Prelease -nsu -DreleaseVersion="$(release_version)" -Darguments="-DskipTests" release:prepare
+fi
+

.travis/push-jdoc-gh-pages.sh

@@ -4,7 +4,7 @@ if [ "$TRAVIS_REPO_SLUG" == "iotaledger/iota.lib.java" ] && [ "$TRAVIS_PULL_REQU
 
   echo -e "Publishing javadoc...\n"
 
-  cp -R "/home/travis/build/iotaledger/iota.lib.java/target/apidocs/" $HOME/javadoc-latest
+  cp -R "/home/travis/build/iotaledger/iota.lib.java/jota/target/apidocs/" $HOME/javadoc-latest
 
   cd $HOME
   git config --global user.email "travis@travis-ci.org"

CONTRIBUTING.adoc

@@ -0,0 +1,61 @@
+== Contributing
+
+*Thank you for your interest in contributing to this project!*
+
+We welcome all contributions and we'd like to help you send your first contribution to us.
+For that, this is what we recommend:
+
+1. Look into the existing issues (or create a new one)
+1. Discuss the possible solution
+1. Code!
+1. Test
+1. Send a PR
+
+=== Look
+
+Take a look at the existing issues: perhaps there's one already related to the feature you want
+to contribute! Otherwise, open a new one, describing the problem and your suggestion for the solution.
+For bugs, it would be wonderful if you add a way to reproduce the issue.
+
+=== Discuss
+
+Usually, opening an issue is enough to get a feedback. If you prefer, join us on Slack, under
+the `#developers` channel.
+
+=== Code
+
+Once you feel comfortable that the issue has been discussed and a general approach is agreed upon,
+it's time to start coding.
+
+First, fork this repository into your own namespace, clone it and add this repository as `upstream`:
+
+```bash
+git clone git@github.com:YOUR_USERNAME/iota.lib.java.git
+git remote add upstream git@github.com:iotaledger/iota.lib.java.git
+```
+
+Then, create a new local branch based off of `master`, like this:
+
+```bash
+git fetch upstream
+git rebase upstream/master
+git checkout -b MyTopicBranch
+```
+
+Run a sanity check build with `mvn clean install`. It should complete successfully without errors
+or test failures.
+
+If everything worked, then do your changes as desired. Once you are done, run a local build with
+`mvn clean install` to make sure nothing is broken. Ideally, your code should include tests for
+the bugs you are fixing or for features you are adding. If you don't know how to test, it's OK to
+open the PR with a title saying "[wip]" (for Work in Progress). We can guide you on how to write tests.
+
+=== Send
+
+Once your code is ready for a review or if you want feedback, send your branch as a pull request on
+GitHub. If your branch is not ready to be merged for some reason, add "[wip]" to the title. It is
+expected that all PRs are passing the continuous integration test.
+
+During this process, someone will take a look at your contributions and make comments, ask questions
+and suggest different approaches. Even though the reviewer strives to be polite, don't take a
+possible criticism personally. After all, we'd really love to get your contribution!

LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
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+      other entities that control, are controlled by, or are under common
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+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
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RELEASE.adoc

@@ -0,0 +1,22 @@
+## Release process
+
+This project uses a simplified release process, where you only need to push a tag starting with
+`release-`, followed by a version number. For instance, pushing a tag named `release-0.9.3` would
+tell Travis to release the version `0.9.3`.
+
+### TL;DR
+
+```bash
+git checkout master
+git fetch upstream
+git rebase upstream/master
+git tag release-0.9.3
+git push upstream release-0.9.3
+```
+
+### Long version
+
+Once a new tag is pushed to the main repository, a Travis build will be started for it. Once the
+build script detects that it's a release build, it will start a new Maven release process
+(`mvn release:prepare release:perform`) and upload the artifacts to Bintray, which is synchronized
+with Maven Central.

jota/pom.xml

@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.iota</groupId>
+        <artifactId>jota-parent</artifactId>
+        <version>0.9.6-SNAPSHOT</version>
+    </parent>
+
+    <name>JOTA : Library</name>
+    <artifactId>jota</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.bouncycastle</groupId>
+            <artifactId>bcprov-jdk15on</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.squareup.retrofit2</groupId>
+            <artifactId>retrofit</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.squareup.retrofit2</groupId>
+            <artifactId>converter-gson</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>commons-io</groupId>
+            <artifactId>commons-io</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>