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WorkingTreeModifiedListener.java 2.4KB

Send a detailed event on working tree modifications Currently there is no way to determine the precise changes done to the working tree by a JGit command. Only the CheckoutCommand actually provides access to the lists of modified, deleted, and to-be-deleted files, but those lists may be inaccurate (since they are determined up-front before the working tree is modified) if the actual checkout then fails halfway through. Moreover, other JGit commands that modify the working tree do not offer any way to figure out which files were changed. This poses problems for EGit, which may need to refresh parts of the Eclipse workspace when JGit has done java.io file operations. Provide the foundations for better file change tracking: the working tree is modified exclusively in DirCacheCheckout. Make it emit a new type of RepositoryEvent that lists all files that were modified or deleted, even if the checkout failed halfway through. We update the 'updated' and 'removed' lists determined up-front in case of file system problems to reflect the actual state of changes made. EGit thus can register a listener for these events and then knows exactly which parts of the Eclipse workspace may need to be refreshed. Two commands manage checking out individual DirCacheEntries themselves: checkout specific paths, and applying a stash with untracked files. Make those two also emit such a new WorkingTreeModifiedEvent. Furthermore, merges may modify files, and clean, rm, and stash create may delete files. CQ: 13969 Bug: 500106 Change-Id: I7a100aee315791fa1201f43bbad61fbae60b35cb Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
7 vuotta sitten
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  1. /*
  2. * Copyright (C) 2017, Thomas Wolf <thomas.wolf@paranor.ch>
  3. * and other copyright owners as documented in the project's IP log.
  4. *
  5. * This program and the accompanying materials are made available
  6. * under the terms of the Eclipse Distribution License v1.0 which
  7. * accompanies this distribution, is reproduced below, and is
  8. * available at http://www.eclipse.org/org/documents/edl-v10.php
  9. *
  10. * All rights reserved.
  11. *
  12. * Redistribution and use in source and binary forms, with or
  13. * without modification, are permitted provided that the following
  14. * conditions are met:
  15. *
  16. * - Redistributions of source code must retain the above copyright
  17. * notice, this list of conditions and the following disclaimer.
  18. *
  19. * - Redistributions in binary form must reproduce the above
  20. * copyright notice, this list of conditions and the following
  21. * disclaimer in the documentation and/or other materials provided
  22. * with the distribution.
  23. *
  24. * - Neither the name of the Eclipse Foundation, Inc. nor the
  25. * names of its contributors may be used to endorse or promote
  26. * products derived from this software without specific prior
  27. * written permission.
  28. *
  29. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
  30. * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
  31. * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  32. * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  33. * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  34. * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  35. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  36. * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  37. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  38. * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  39. * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  40. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  41. * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  42. */
  43. package org.eclipse.jgit.events;
  44. /**
  45. * Receives {@link WorkingTreeModifiedEvent}s, which are fired whenever a
  46. * {@link org.eclipse.jgit.dircache.DirCacheCheckout} modifies
  47. * (adds/deletes/updates) files in the working tree.
  48. *
  49. * @since 4.9
  50. */
  51. public interface WorkingTreeModifiedListener extends RepositoryListener {
  52. /**
  53. * Respond to working tree modifications.
  54. *
  55. * @param event
  56. */
  57. void onWorkingTreeModified(WorkingTreeModifiedEvent event);
  58. }