add support for Github Actions, publish snapshots to OSSRH automatically (#633)

* remove oss-parent

* add github workflow

* use java 16 for now

* disable fail fast

* add java 15

* use only java 8 and 11 for now

* snapshot deploy

* snapshot deploy

* oracle jdk

* oracle jdk

* oracle jdk

* kcms matrix

* kcms job name

* only deploy for snapshots

* try not operator

* prepare PR

* restore groupId

* Fixed Travis link + bonus project summary updates

* Readme improvements

* #629: Preliminary WebP animation (ANIM/ANMF) support

* #629: Fixed build

* Make tests pass on JDK 16 and 17 (#635)

* make tests pass on JDK 16 and 17
replace deprecated mockito-all by mockito-core, and updated to latest 3.x
replace deprecated org.mockito.Matchers

* code cleanup from IDE suggestions

* add oracle jdk 16 and 17 to Travis

* test on java 17

* try to fix warning about maven-source-plugin

Co-authored-by: Harald Kuhr <harald.kuhr@gmail.com>

.github/workflows/ci.yml

@@ -0,0 +1,78 @@
+name: CI
+
+on: [ push, pull_request ]
+
+jobs:
+  test:
+    name: test ${{ matrix.os }} jdk${{ matrix.java }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-latest, windows-latest, macos-latest ]
+        java: [ 8, 11, 17 ]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v2
+        with:
+          distribution: 'temurin'
+          java-version: ${{ matrix.java }}
+          java-package: jdk
+          cache: 'maven'
+      - name: Test
+        run: mvn test
+
+  test_oracle:
+    name: 'test Oracle JDK 8 (KCMS: ${{ matrix.kcms }})'
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        kcms: [ true, false ]
+    steps:
+      - uses: actions/checkout@v2
+      - run: |
+          download_url="https://javadl.oracle.com/webapps/download/AutoDL?BundleId=245038_d3c52aa6bfa54d3ca74e617f18309292"
+          wget -O $RUNNER_TEMP/java_package.tar.gz $download_url
+      - uses: actions/setup-java@v2
+        with:
+          distribution: 'jdkfile'
+          jdkFile: ${{ runner.temp }}/java_package.tar.gz
+          java-version: '8'
+          cache: 'maven'
+      - name: Set MAVEN_OPTS
+        if: ${{ matrix.kcms }}
+        run: |
+          echo "MAVEN_OPTS=-Dsun.java2d.cmm=sun.java2d.cmm.kcms.KcmsServiceProvider" >> $GITHUB_ENV
+      - name: Display Java version
+        run: java -version
+      - name: Test
+        run: mvn test
+
+  release:
+    name: Deploy
+    needs: [ test, test_oracle ]
+    if: github.ref == 'refs/heads/master' # only perform on latest master
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Apache Maven Central
+        uses: actions/setup-java@v2
+        with: # running setup-java again overwrites the settings.xml
+          distribution: 'temurin'
+          java-version: '8'
+          java-package: jdk
+          server-id: ossrh # Value of the distributionManagement/repository/id field of the pom.xml
+          server-username: MAVEN_CENTRAL_USERNAME # env variable for username in deploy (1)
+          server-password: MAVEN_CENTRAL_PASSWORD # env variable for token in deploy (2)
+          gpg-private-key: ${{ secrets.GPG_KEY }} # Value of the GPG private key to import
+          gpg-passphrase: MAVEN_CENTRAL_GPG_PASSPHRASE # env variable for GPG private key passphrase (3)
+      - name: Get Project Version
+        run: |
+          echo "PROJECT_VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)" >> $GITHUB_ENV
+      - name: Publish to Apache Maven Central
+        if: ${{ endsWith(env.PROJECT_VERSION, '-SNAPSHOT') }}
+        run: mvn deploy -P release -DskipTests
+        env:
+          MAVEN_CENTRAL_USERNAME: ${{ secrets.SONATYPE_USERNAME }} # must be the same env variable name as (1)
+          MAVEN_CENTRAL_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }} # must be the same env variable name as (2)
+          MAVEN_CENTRAL_GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }} # must be the same env variable name as (3)

imageio/imageio-icns/pom.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0"?>
-<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/maven-v4_0_0.xsd">
+<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/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>com.twelvemonkeys.imageio</groupId>

imageio/imageio-metadata/pom.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <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/maven-v4_0_0.xsd">
     <parent>
-	<groupId>com.twelvemonkeys.imageio</groupId>        
+	<groupId>com.twelvemonkeys.imageio</groupId>
 	<artifactId>imageio</artifactId>        
         <version>3.9.0-SNAPSHOT</version>
     </parent>

pom.xml

@@ -1,11 +1,7 @@
 <?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/maven-v4_0_0.xsd">
+<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 https://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <parent>
-        <groupId>org.sonatype.oss</groupId>
-        <artifactId>oss-parent</artifactId>
-        <version>9</version>
-    </parent>
 
     <groupId>com.twelvemonkeys</groupId>
     <artifactId>twelvemonkeys</artifactId>
@@ -89,6 +85,49 @@
         <tag>HEAD</tag>
     </scm>
 
+    <distributionManagement>
+        <snapshotRepository>
+            <id>ossrh</id>
+            <url>https://oss.sonatype.org/content/repositories/snapshots</url>
+        </snapshotRepository>
+    </distributionManagement>
+
+    <profiles>
+        <profile>
+            <id>release</id>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-gpg-plugin</artifactId>
+                        <version>1.6</version>
+                        <configuration>
+                            <!-- Prevent gpg from using pinentry programs -->
+                            <gpgArguments>
+                                <arg>--pinentry-mode</arg>
+                                <arg>loopback</arg>
+                            </gpgArguments>
+                        </configuration>
+                        <executions>
+                            <execution>
+                                <id>sign-artifacts</id>
+                                <phase>verify</phase>
+                                <goals>
+                                    <goal>sign</goal>
+                                </goals>
+                            </execution>
+                        </executions>
+                    </plugin>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-javadoc-plugin</artifactId>
+                        <version>3.2.0</version>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+    </profiles>
+
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.jpms.module.name>com.twelvemonkeys.${project.artifactId}</project.jpms.module.name>
@@ -97,6 +136,12 @@
     <build>
         <finalName>twelvemonkeys-${project.artifactId}-${project.version}</finalName>
         <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-help-plugin</artifactId>
+                <version>3.2.0</version>
+            </plugin>
+
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-jar-plugin</artifactId>
@@ -116,18 +161,31 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-source-plugin</artifactId>
-                <inherited>true</inherited>
+                <version>3.2.1</version>
                 <executions>
-                     <execution>
+                    <execution>
-                         <phase>package</phase>
+                        <phase>package</phase>
-                         <id>attach-sources</id>
+                        <id>attach-sources</id>
-                         <goals>
+                        <goals>
-                             <goal>jar</goal>
+                            <goal>jar-no-fork</goal>
-                             <goal>test-jar</goal>
+                            <goal>jar</goal>
-                         </goals>
+                            <goal>test-jar</goal>
-                     </execution>
+                        </goals>
-                 </executions>
+                    </execution>
-             </plugin>
+                </executions>
+            </plugin>
+
+            <plugin>
+                <groupId>org.sonatype.plugins</groupId>
+                <artifactId>nexus-staging-maven-plugin</artifactId>
+                <version>1.6.8</version>
+                <extensions>true</extensions>
+                <configuration>
+                    <serverId>ossrh</serverId>
+                    <nexusUrl>https://oss.sonatype.org/</nexusUrl>
+                    <autoReleaseAfterClose>true</autoReleaseAfterClose>
+                </configuration>
+            </plugin>
         </plugins>
 
         <pluginManagement>
@@ -155,16 +213,6 @@
                         </execution>
                     </executions>
                 </plugin>
-                <plugin>
-                    <groupId>org.apache.maven.plugins</groupId>
-                    <artifactId>maven-javadoc-plugin</artifactId>
-                    <version>3.2.0</version>
-                </plugin>
-                <plugin>
-                    <groupId>org.apache.maven.plugins</groupId>
-                    <artifactId>maven-source-plugin</artifactId>
-                    <version>3.2.0</version>
-                </plugin>
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-compiler-plugin</artifactId>
@@ -198,11 +246,11 @@
                     <artifactId>maven-release-plugin</artifactId>
                     <version>3.0.0-M4</version>
                     <dependencies>
-                      <dependency>
+                        <dependency>
-                        <groupId>org.apache.maven.scm</groupId>
+                            <groupId>org.apache.maven.scm</groupId>
-                        <artifactId>maven-scm-provider-gitexe</artifactId>
+                            <artifactId>maven-scm-provider-gitexe</artifactId>
-                        <version>1.11.2</version>
+                            <version>1.11.2</version>
-                      </dependency>
+                        </dependency>
                     </dependencies>
                 </plugin>
                 <plugin>