Proof of concept #1026

Paul Martin

2016-04-16 eecaad8b8e2c447429c31a01d49260ddd6b4ee03

 src/main/java/com/gitblit/utils/DiffUtils.java

@@ -89,6 +89,40 @@
   }



   /**

    * Enumeration for the diff comparator types.

    */

   public static enum DiffComparator {

      SHOW_WHITESPACE(RawTextComparator.DEFAULT),

      IGNORE_WHITESPACE(RawTextComparator.WS_IGNORE_ALL),

      IGNORE_LEADING(RawTextComparator.WS_IGNORE_LEADING),

      IGNORE_TRAILING(RawTextComparator.WS_IGNORE_TRAILING),

      IGNORE_CHANGES(RawTextComparator.WS_IGNORE_CHANGE);



      public final RawTextComparator textComparator;



      DiffComparator(RawTextComparator textComparator) {

         this.textComparator = textComparator;

      }



      public DiffComparator getOpposite() {

         return this == SHOW_WHITESPACE ? IGNORE_WHITESPACE : SHOW_WHITESPACE;

      }



      public String getTranslationKey() {

         return "gb." + name().toLowerCase();

      }



      public static DiffComparator forName(String name) {

         for (DiffComparator type : values()) {

            if (type.name().equalsIgnoreCase(name)) {

               return type;

            }

         }

         return null;

      }

   }



   /**

    * Encapsulates the output of a diff.

    */

   public static class DiffOutput implements Serializable {

@@ -123,13 +157,16 @@
      public final List<PathChangeModel> paths = new ArrayList<PathChangeModel>();



      private final String commitId;

		
      private final Repository repository;



      public DiffStat(String commitId) {

      public DiffStat(String commitId, Repository repository) {

         this.commitId = commitId;

         this.repository = repository;

      }



      public PathChangeModel addPath(DiffEntry entry) {

         PathChangeModel pcm = PathChangeModel.from(entry, commitId);

         PathChangeModel pcm = PathChangeModel.from(entry, commitId, repository);

         paths.add(pcm);

         return pcm;

      }

@@ -193,12 +230,14 @@
    *

    * @param repository

    * @param commit

    * @param comparator

    * @param outputType

    * @param tabLength

    * @return the diff

    */

   public static DiffOutput getCommitDiff(Repository repository, RevCommit commit,

         DiffOutputType outputType) {

      return getDiff(repository, null, commit, null, outputType);

         DiffComparator comparator, DiffOutputType outputType, int tabLength) {

      return getDiff(repository, null, commit, null, comparator, outputType, tabLength);

   }



   /**

@@ -206,15 +245,17 @@
    *

    * @param repository

    * @param commit

    * @param comparator

    * @param outputType

    * @param handler

    *            to use for rendering binary diffs if {@code outputType} is {@link DiffOutputType#HTML HTML}.

    *            May be {@code null}, resulting in the default behavior.

    * @param tabLength

    * @return the diff

    */

   public static DiffOutput getCommitDiff(Repository repository, RevCommit commit,

         DiffOutputType outputType, BinaryDiffHandler handler) {

      return getDiff(repository, null, commit, null, outputType, handler);

         DiffComparator comparator, DiffOutputType outputType, BinaryDiffHandler handler, int tabLength) {

      return getDiff(repository, null, commit, null, comparator, outputType, handler, tabLength);

   }





@@ -225,12 +266,14 @@
    * @param repository

    * @param commit

    * @param path

    * @param comparator

    * @param outputType

    * @param tabLength

    * @return the diff

    */

   public static DiffOutput getDiff(Repository repository, RevCommit commit, String path,

         DiffOutputType outputType) {

      return getDiff(repository, null, commit, path, outputType);

         DiffComparator comparator, DiffOutputType outputType, int tabLength) {

      return getDiff(repository, null, commit, path, comparator, outputType, tabLength);

   }



   /**

@@ -240,15 +283,17 @@
    * @param repository

    * @param commit

    * @param path

    * @param comparator

    * @param outputType

    * @param handler

    *            to use for rendering binary diffs if {@code outputType} is {@link DiffOutputType#HTML HTML}.

    *            May be {@code null}, resulting in the default behavior.

    * @param tabLength

    * @return the diff

    */

   public static DiffOutput getDiff(Repository repository, RevCommit commit, String path,

         DiffOutputType outputType, BinaryDiffHandler handler) {

      return getDiff(repository, null, commit, path, outputType, handler);

         DiffComparator comparator, DiffOutputType outputType, BinaryDiffHandler handler, int tabLength) {

      return getDiff(repository, null, commit, path, comparator, outputType, handler, tabLength);

   }



   /**

@@ -257,12 +302,15 @@
    * @param repository

    * @param baseCommit

    * @param commit

    * @param comparator

    * @param outputType

    * @param tabLength

    *

    * @return the diff

    */

   public static DiffOutput getDiff(Repository repository, RevCommit baseCommit, RevCommit commit,

         DiffOutputType outputType) {

      return getDiff(repository, baseCommit, commit, null, outputType);

         DiffComparator comparator, DiffOutputType outputType, int tabLength) {

      return getDiff(repository, baseCommit, commit, null, comparator, outputType, tabLength);

   }



   /**

@@ -271,15 +319,17 @@
    * @param repository

    * @param baseCommit

    * @param commit

    * @param comparator

    * @param outputType

    * @param handler

    *            to use for rendering binary diffs if {@code outputType} is {@link DiffOutputType#HTML HTML}.

    *            May be {@code null}, resulting in the default behavior.

    * @param tabLength

    * @return the diff

    */

   public static DiffOutput getDiff(Repository repository, RevCommit baseCommit, RevCommit commit,

         DiffOutputType outputType, BinaryDiffHandler handler) {

      return getDiff(repository, baseCommit, commit, null, outputType, handler);

         DiffComparator comparator, DiffOutputType outputType, BinaryDiffHandler handler, int tabLength) {

      return getDiff(repository, baseCommit, commit, null, comparator, outputType, handler, tabLength);

   }



   /**

@@ -294,11 +344,13 @@
    *            if the path is specified, the diff is restricted to that file

    *            or folder. if unspecified, the diff is for the entire commit.

    * @param outputType

    * @param diffComparator

    * @param tabLength

    * @return the diff

    */

   public static DiffOutput getDiff(Repository repository, RevCommit baseCommit, RevCommit commit,

         String path, DiffOutputType outputType) {

      return getDiff(repository, baseCommit, commit, path, outputType, null);

         String path, DiffComparator diffComparator, DiffOutputType outputType, int tabLength) {

      return getDiff(repository, baseCommit, commit, path, diffComparator, outputType, null, tabLength);

   }



   /**

@@ -312,23 +364,25 @@
    * @param path

    *            if the path is specified, the diff is restricted to that file

    *            or folder. if unspecified, the diff is for the entire commit.

    * @param comparator

    * @param outputType

    * @param handler

    *            to use for rendering binary diffs if {@code outputType} is {@link DiffOutputType#HTML HTML}.

    *            May be {@code null}, resulting in the default behavior.

    * @param tabLength

    * @return the diff

    */

   public static DiffOutput getDiff(Repository repository, RevCommit baseCommit, RevCommit commit, String path, DiffOutputType outputType,

         final BinaryDiffHandler handler) {

   public static DiffOutput getDiff(Repository repository, RevCommit baseCommit, RevCommit commit, String path,

         DiffComparator comparator, DiffOutputType outputType, final BinaryDiffHandler handler, int tabLength) {

      DiffStat stat = null;

      String diff = null;

      try {

         ByteArrayOutputStream os = null;

         RawTextComparator cmp = RawTextComparator.DEFAULT;



         DiffFormatter df;

         switch (outputType) {

         case HTML:

            df = new GitBlitDiffFormatter(commit.getName(), path, handler);

            df = new GitBlitDiffFormatter(commit.getName(), repository, path, handler, tabLength);

            break;

         case PLAIN:

         default:

@@ -337,7 +391,7 @@
            break;

         }

         df.setRepository(repository);

         df.setDiffComparator(cmp);

         df.setDiffComparator((comparator == null ? DiffComparator.SHOW_WHITESPACE : comparator).textComparator);

         df.setDetectRenames(true);



         RevTree commitTree = commit.getTree();

@@ -497,7 +551,7 @@
      DiffStat stat = null;

      try {

         RawTextComparator cmp = RawTextComparator.DEFAULT;

         DiffStatFormatter df = new DiffStatFormatter(commit.getName());

         DiffStatFormatter df = new DiffStatFormatter(commit.getName(), repository);

         df.setRepository(repository);

         df.setDiffComparator(cmp);

         df.setDetectRenames(true);