maven-git-commit-id-plugin are not in sync

pom.xml

@@ -11,9 +11,36 @@
   <artifactId>git-commit-id-plugin</artifactId>
   <packaging>pom</packaging>
 
-  <version>2.1.8-SNAPSHOT</version>
+  <version>2.1.10</version>
 
   <name>Git Commit Id Plugin Maven Mojo</name>
+  <description>
+    git-commit-id-plugin is a plugin quite similar to
+    https://fisheye.codehaus.org/browse/mojo/tags/buildnumber-maven-plugin-1.0-beta-4 for example but as buildnumber
+    only supports svn (which is very sad) and cvs (which is even more sad).
+    This plugin makes basic repository information available through maven resources. This can be used to display
+    "what version is this?" or "who has deployed this and when, from which branch?" information at runtime - making
+    it easy to find things like "oh, that isn't deployed yet, I'll test it tomorrow" and making both testers and
+    developers life easier.
+
+    The data currently exported is like this (that's the end effect from the GitRepositoryState Bean):
+    {
+    "branch" : "testing-maven-git-plugin",
+    "commitTime" : "06.01.1970 @ 16:16:26 CET",
+    "commitId" : "787e39f61f99110e74deed68ab9093088d64b969",
+    "commitUserName" : "Konrad Malawski",
+    "commitUserEmail" : "konrad.malawski@java.pl",
+    "commitMessageFull" : "releasing my fun plugin :-) + fixed some typos + cleaned up directory structure + added
+    license etc",
+    "commitMessageShort" : "releasing my fun plugin :-)",
+    "buildTime" : "06.01.1970 @ 16:17:53 CET",
+    "buildUserName" : "Konrad Malawski",
+    "buildUserEmail" : "konrad.malawski@java.pl"
+    }
+
+    Note that the data is exported via maven resource filtering and is really easy to use with spring -
+    which I've explained in detail in this readme https://github.com/ktoso/maven-git-commit-id-plugin
+  </description>
   <url>http://www.blog.project13.pl</url>
 
   <modules>
@@ -64,6 +91,12 @@
       <version>${maven-plugin-api.version}</version>
     </dependency>
 
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-databind</artifactId>
+      <version>2.2.3</version>
+    </dependency>
+
     <dependency>
       <groupId>com.google.inject</groupId>
       <artifactId>guice</artifactId>
@@ -81,7 +114,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>13.0</version>
+      <version>15.0</version>
     </dependency>
 
     <!-- IntelliJ Annotations -->
@@ -135,6 +168,13 @@
       <type>jar</type>
       <scope>test</scope>
     </dependency>
+
+    <dependency>
+      <groupId>pl.pragmatists</groupId>
+      <artifactId>JUnitParams</artifactId>
+      <version>1.0.2</version>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <build>

src/main/java/pl/project13/jgit/DescribeCommand.java

@@ -180,7 +180,7 @@ public DescribeCommand always(boolean always) {
   public DescribeCommand forceLongFormat(@Nullable Boolean forceLongFormat) {
     if (forceLongFormat != null) {
       this.forceLongFormat = forceLongFormat;
-      log("--long = %s", forceLongFormat);
+      log("--long =", forceLongFormat);
     }
     return this;
   }
@@ -312,21 +312,22 @@ public DescribeResult call() throws GitAPIException {
     // check if dirty
     boolean dirty = findDirtyState(repo);
 
-    if (hasTags(headCommit, tagObjectIdToName)) {
+    if (hasTags(headCommit, tagObjectIdToName) && !forceLongFormat) {
       String tagName = tagObjectIdToName.get(headCommit).iterator().next();
-      log("The commit we're on is a Tag ([",tagName,"]), returning.");
+      log("The commit we're on is a Tag ([",tagName,"]) and forceLongFormat == false, returning.");
 
       return new DescribeResult(tagName, dirty, dirtyOption);
     }
 
-    if (foundZeroTags(tagObjectIdToName)) {
+    // get commits, up until the nearest tag
+    List<RevCommit> commits = findCommitsUntilSomeTag(repo, headCommit, tagObjectIdToName);
+
+    // if there is no tags or any tag is not on that branch then return generic describe
+    if (foundZeroTags(tagObjectIdToName) || commits.isEmpty()) {
       return new DescribeResult(objectReader, headCommitId, dirty, dirtyOption)
           .withCommitIdAbbrev(abbrev);
     }
 
-    // get commits, up until the nearest tag
-    List<RevCommit> commits = findCommitsUntilSomeTag(repo, headCommit, tagObjectIdToName);
-
     // check how far away from a tag we are
 
     int distance = distanceBetween(repo, headCommit, commits.get(0));
@@ -350,7 +351,7 @@ private DescribeResult createDescribeResult(ObjectReader objectReader, ObjectId
           .withCommitIdAbbrev(abbrev);
 
     } else if (howFarFromWhichTag.first > 0 || forceLongFormat) {
-      return new DescribeResult(objectReader, howFarFromWhichTag.second, howFarFromWhichTag.first, headCommitId, dirty, dirtyOption)
+      return new DescribeResult(objectReader, howFarFromWhichTag.second, howFarFromWhichTag.first, headCommitId, dirty, dirtyOption, forceLongFormat)
           .withCommitIdAbbrev(abbrev); // we're a bit away from a tag
 
     } else if (howFarFromWhichTag.first == 0) {
@@ -425,7 +426,7 @@ private List<RevCommit> findCommitsUntilSomeTag(Repository repo, RevCommit head,
         }
       }
 
-      throw new RuntimeException("Did not find any commits until some tag");
+      return Collections.emptyList();
     } catch (Exception e) {
       throw new RuntimeException("Unable to find commits until some tag", e);
     }

src/main/java/pl/project13/jgit/DescribeResult.java

@@ -49,6 +49,8 @@ public class DescribeResult {
   private boolean dirty;
   private String dirtyMarker;
 
+  private boolean forceLongFormat;
+
   private ObjectReader objectReader;
 
   public static final DescribeResult EMPTY = new DescribeResult("");
@@ -58,7 +60,7 @@ public DescribeResult(@NotNull String tagName) {
   }
 
   public DescribeResult(@NotNull ObjectReader objectReader, String tagName, int commitsAwayFromTag, @Nullable ObjectId commitId) {
-    this(objectReader, tagName, commitsAwayFromTag, commitId, false, Optional.<String>absent());
+    this(objectReader, tagName, commitsAwayFromTag, commitId, false, Optional.<String>absent(), false);
   }
 
   public DescribeResult(@NotNull ObjectReader objectReader, @NotNull ObjectId commitId) {
@@ -69,13 +71,14 @@ public DescribeResult(@NotNull ObjectReader objectReader, @NotNull ObjectId comm
   }
 
   public DescribeResult(@NotNull ObjectReader objectReader, String tagName, int commitsAwayFromTag, ObjectId commitId, boolean dirty, String dirtyMarker) {
-    this(objectReader, tagName, commitsAwayFromTag, commitId, dirty, Optional.of(dirtyMarker));
+    this(objectReader, tagName, commitsAwayFromTag, commitId, dirty, Optional.of(dirtyMarker), false);
   }
 
-  public DescribeResult(@NotNull ObjectReader objectReader, String tagName, int commitsAwayFromTag, ObjectId commitId, boolean dirty, Optional<String> dirtyMarker) {
+  public DescribeResult(@NotNull ObjectReader objectReader, String tagName, int commitsAwayFromTag, ObjectId commitId, boolean dirty, Optional<String> dirtyMarker, boolean forceLongFormat) {
     this(objectReader, commitId, dirty, dirtyMarker);
     this.tagName = Optional.of(tagName);
     this.commitsAwayFromTag = commitsAwayFromTag;
+    this.forceLongFormat = forceLongFormat;
   }
 
   public DescribeResult(@NotNull ObjectReader objectReader, @NotNull ObjectId commitId, boolean dirty, @NotNull Optional<String> dirtyMarker) {
@@ -145,6 +148,9 @@ private boolean abbrevZeroHidesCommitsPartOfDescribe() {
 
   @Nullable
   public String commitsAwayFromTag() {
+    if (forceLongFormat) {
+      return String.valueOf(commitsAwayFromTag);
+    }
     return commitsAwayFromTag == 0 ? null : String.valueOf(commitsAwayFromTag);
   }