add boolean property: 'files.dirty' if working dir is dirty

Author: abatkin

src/main/java/pl/project13/maven/git/GitCommitIdMojo.java

@@ -59,6 +59,7 @@ public class GitCommitIdMojo extends AbstractMojo {
   public static final String BRANCH = "branch";
   public static final String COMMIT_ID = "commit.id";
   public static final String COMMIT_ID_ABBREV = "commit.id.abbrev";
+  public static final String FILES_DIRTY = "files.dirty";
   public static final String COMMIT_DESCRIBE = "commit.id.describe";
   public static final String COMMIT_SHORT_DESCRIBE = "commit.id.describe-short";
   public static final String BUILD_AUTHOR_NAME = "build.user.name";

src/main/java/pl/project13/maven/git/GitDataProvider.java

@@ -37,6 +37,7 @@ public abstract class GitDataProvider {
   protected abstract String getGitDescribe() throws MojoExecutionException;
   protected abstract String getCommitId();
   protected abstract String getAbbrevCommitId() throws MojoExecutionException;
+  protected abstract boolean isDirty() throws MojoExecutionException;
   protected abstract String getCommitAuthorName();
   protected abstract String getCommitAuthorEmail();
   protected abstract String getCommitMessageFull();
@@ -65,6 +66,8 @@ public void loadGitData(@NotNull Properties properties) throws IOException, Mojo
       put(properties, GitCommitIdMojo.COMMIT_ID, getCommitId());
       // git.commit.id.abbrev      
       put(properties, GitCommitIdMojo.COMMIT_ID_ABBREV, getAbbrevCommitId());
+      // git.files.dirty
+      put(properties, GitCommitIdMojo.FILES_DIRTY, isDirty()? "true" : "false");
       // git.commit.author.name
       put(properties, GitCommitIdMojo.COMMIT_AUTHOR_NAME, getCommitAuthorName());
       // git.commit.author.email

src/main/java/pl/project13/maven/git/JGitProvider.java

@@ -135,6 +135,16 @@ protected String getAbbrevCommitId() throws MojoExecutionException {
     return abbrevCommitId;
   }
 
+  @Override
+  protected boolean isDirty() throws MojoExecutionException {
+    Git gitObject = Git.wrap(git);
+    try {
+      return !gitObject.status().call().isClean();
+    } catch (GitAPIException e) {
+      throw new MojoExecutionException("Failed to get git status: " + e.getMessage(), e);
+    }
+  }
+
   @Override
   protected String getCommitAuthorName() {
     String commitAuthor = headCommit.getAuthorIdent().getName();

src/main/java/pl/project13/maven/git/NativeGitProvider.java

@@ -175,6 +175,12 @@ protected String getAbbrevCommitId() throws MojoExecutionException {
     return abbrevCommitId;
   }
 
+  @Override
+  protected boolean isDirty() throws MojoExecutionException {
+    String output = tryToRunGitCommand(canonical, "status --porcelain");
+    return !output.trim().isEmpty();
+  }
+
   @Override
   protected String getCommitAuthorName() {
     return tryToRunGitCommand(canonical, "log -1 --pretty=format:\"%cn\"");