10
10
Dropping the revision history for a project
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11
-------------------------------------------
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If you accidentally put the wrong tree under version control, simply
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If you accidently put the wrong tree under version control, simply
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14
delete the ``.bzr`` directory.
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Deregistering a file or directory
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17
---------------------------------
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If you accidentally register a file using ``add`` that you
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If you accidently register a file using ``add`` that you
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20
don't want version controlled, you can use the ``remove``
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21
command to tell Bazaar to forget about it.
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``remove`` has been designed to *Do the Safe Thing* in
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that it will not delete a modified file. For example::
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``remove`` has been designed to *Do the Right Thing* in
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that it will leave the file on disk if it hasn't been
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committed yet but delete it otherwise. For example::
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(oops - didn't mean that)
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29
bzr remove foo.html
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This will complain about the file being modified or unknown.
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If you want to keep the file, use the ``--keep`` option.
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Alternatively, if you want to delete the file, use the ``--force`` option.
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(oops - didn't mean that)
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bzr remove --keep foo.html
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(foo.html left on disk, but deregistered)
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On the other hand, the unchanged ``TODO`` file is deregistered and
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removed from disk without complaint in this example::
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(foo.html left on disk)
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35
bzr commit -m "added TODO"
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38
(TODO file deleted)
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If you want to insist on keeping the file, use the ``--keep`` option.
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If you want to insist on removing the file, use the ``--force`` option.
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43
Note: If you delete a file using your file manager, IDE or via an operating
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44
system command, the ``commit`` command will implicitly treat it as removed.
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As a precaution, it is good practice to use ``bzr status`` and
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``bzr diff`` first to check that everything being thrown away
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As a precaution, it is good practice to use ``bzr diff`` first to
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check that everything being thrown away really ought to be.
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59
Undoing changes to a file since the last commit
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60
-----------------------------------------------
90
83
bzr commit -m "Fix bug #1"
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Another common reason for undoing a commit is because you forgot to add
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one or more files. Some users like to alias ``commit`` to ``commit --strict``
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so that commits fail if unknown files are found in the tree.
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Note: While the ``merge`` command is not introduced until the next
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chapter, it is worth noting now that ``uncommit`` restores any pending
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merges. (Running ``bzr status`` after ``uncommit`` will show these.)
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``merge`` can also be used to effectively undo just a selected commit
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earlier in history. For more information on ``merge``, see
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`Merging changes <merging_changes.html>`_ in the next chapter and the
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Bazaar User Reference.
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Undoing multiple commits
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------------------------
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You can use the -r option to undo several commits like this::
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Undoing an earlier commit
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-------------------------
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You can use the -r option to undo several commits like this:
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90
bzr uncommit -r -3
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108
Committed revision 20.
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109
(release the code)
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112
bzr commit -m "Backout fix for bug #5"
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This will change your entire tree back to the state as of revision 19,
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which is probably only what you want if you haven't made any new commits
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since then. If you have, the ``revert`` would wipe them out as well. In that
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case, you probably want to use `Reverse cherrypicking
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<adv_merging.html#reverse-cherrypicking>`_ instead to
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back out the bad fix.
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Note: As an alternative to using an absolute revision number (like 19), you can
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specify one relative to the tip (-1) using a negative number like this::