List authors in release notes (#13612)

Change-Id: I51960e9345ff233e29289b33d3224e03d866d463

3 files changed, 116 insertions, 0 deletions

diff --git a/buildhelpers/build.xml b/buildhelpers/build.xml
index 28eb55e6e8..159435811f 100644
--- a/buildhelpers/build.xml
+++ b/buildhelpers/build.xml
@@ -44,6 +44,15 @@
         </antcall>
     </target>
 
+    <target name="fetch-release-notes-authors">
+        <copy file="src/com/vaadin/buildhelpers/authormap.properties" tofile="result/classes/com/vaadin/buildhelpers/authormap.properties" />
+        <antcall target="common.exec-buildhelper">
+            <param name="main.class" value="com.vaadin.buildhelpers.FetchReleaseNotesAuthors" />
+            <param name="output" value="${output}" />
+        </antcall>
+        <delete file="result/classes/com/vaadin/buildhelpers/authormap.properties" />
+    </target>
+
     <target name="test" depends="checkstyle">
         <!--<antcall target="common.test.run" /> -->
         <echo>WHAT? No JUnit tests for ${module.name}!</echo>
diff --git a/buildhelpers/src/com/vaadin/buildhelpers/FetchReleaseNotesAuthors.java b/buildhelpers/src/com/vaadin/buildhelpers/FetchReleaseNotesAuthors.java
new file mode 100644
index 0000000000..cd85ca6a3f
--- /dev/null
+++ b/buildhelpers/src/com/vaadin/buildhelpers/FetchReleaseNotesAuthors.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.buildhelpers;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Properties;
+
+public class FetchReleaseNotesAuthors {
+    private static final String template = "<li class=\"author\">@author@</li>";
+
+    public static void main(String[] args) throws IOException,
+            InterruptedException {
+        Properties authorMap = new Properties();
+
+        String authorsFilename = FetchReleaseNotesAuthors.class.getPackage()
+                .getName().replace(".", "/")
+                + "/authormap.properties";
+        InputStream s = FetchReleaseNotesAuthors.class.getClassLoader()
+                .getResourceAsStream(authorsFilename);
+        if (s == null) {
+            System.err.println("Author mapping file " + authorsFilename
+                    + " not found!");
+        }
+        authorMap.load(s);
+
+        String version = System.getProperty("vaadin.version");
+        String previousVersion = getPreviousVersion(version);
+        // System.out.println("Using previous version: " + previousVersion);
+        // List all commits which are in this version but not in
+        // "previousVersion"
+        String cmd = "git log --pretty=%an HEAD ^origin/" + previousVersion;
+        Process p = Runtime.getRuntime().exec(cmd);
+        p.waitFor();
+        if (p.exitValue() != 0) {
+            System.err.println("Exit code: " + p.exitValue());
+        }
+        BufferedReader b = new BufferedReader(new InputStreamReader(
+                p.getInputStream()));
+        String line = "";
+
+        List<String> authors = new ArrayList<String>();
+        while ((line = b.readLine()) != null) {
+            String author = line;
+            if (authorMap.containsKey(author)) {
+                author = authorMap.getProperty(author);
+            }
+            if (author != null && !author.equals("")
+                    && !authors.contains(author)) {
+                authors.add(author);
+            }
+        }
+        Collections.sort(authors);
+        for (String author : authors) {
+            System.out.println(template.replace("@author@", author));
+        }
+    }
+
+    private static String getPreviousVersion(String version) {
+        String[] versionNumbers = version.split("\\.");
+        if (versionNumbers.length > 4 || versionNumbers.length < 3) {
+            throw new IllegalArgumentException("Cannot parse version: "
+                    + version);
+        }
+        int major = Integer.parseInt(versionNumbers[0]);
+        int minor = Integer.parseInt(versionNumbers[1]);
+        int maintenance = Integer.parseInt(versionNumbers[2]);
+        // String qualifier = versionNumbers[3];
+
+        if (minor == 0) {
+            // Major release, can't know what the previous minor was
+            throw new IllegalArgumentException(
+                    "Can't know what previous minor version was");
+        }
+        if (maintenance == 0) {
+            // Minor release, use last minor
+            return major + "." + (minor - 1);
+        } else {
+            // Maintenance, use last maintenance
+            return major + "." + minor + "." + (maintenance - 1);
+        }
+    }
+}
diff --git a/buildhelpers/src/com/vaadin/buildhelpers/authormap.properties b/buildhelpers/src/com/vaadin/buildhelpers/authormap.properties
new file mode 100644
index 0000000000..15b8ad2cba
--- /dev/null
+++ b/buildhelpers/src/com/vaadin/buildhelpers/authormap.properties
@@ -0,0 +1,6 @@
+denisanisimov=Denis Anisimov
+joheriks=Johannes Eriksson
+michaelvogt=Michael Vogt
+tapio=Tapio Aali
+Build\ Agent=
+mtzukanov=Michael Tzukanov
\ No newline at end of file