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Controlling file registration
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=============================
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What does Bazaar track?
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-----------------------
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As explained earlier, ``bzr add`` finds and registers all the things in
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and under the current directory that Bazaar thinks ought to be
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version controlled. These things may be:
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Bazaar has default rules for deciding which files are
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interesting and which ones are not. You can tune those rules as
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explained in `Ignoring files`_ below.
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Unlike many other VCS tools, Bazaar tracks directories as first class
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items. As a consequence, empty directories are correctly supported -
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you don't need to create a dummy file inside a directory just to
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ensure it gets tracked and included in project exports.
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For symbolic links, the value of the symbolic link is tracked,
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not the content of the thing the symbolic link is pointing to.
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Note: Support for tracking projects-within-projects ("nested trees")
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is currently under development. Please contact the Bazaar developers
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if you are interested in helping develop or test this functionality.
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Selective registration
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----------------------
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In some cases, you may want or need to explicitly nominate the things
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to register rather than leave it up to Bazaar to find things. To do this,
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simply provide paths as arguments to the ``add`` command like this::
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Adding a directory implicitly adds all interesting things
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Many source trees contain some files that do not need to be versioned,
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such as editor backups, object or bytecode files, and built programs. You
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can simply not add them, but then they'll always crop up as unknown files.
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You can also tell Bazaar to ignore these files by adding them to a file
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called ``.bzrignore`` at the top of the tree.
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This file contains a list of file wildcards (or "globs"), one per line.
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Typical contents are like this::
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If a glob contains a slash, it is matched against the whole path from the
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top of the tree; otherwise it is matched against only the filename. So
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the previous example ignores files with extension ``.o`` in all
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subdirectories, but this example ignores only ``config.h`` at the top level
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and HTML files in ``doc/``::
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To get a list of which files are ignored and what pattern they matched,
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Note that ignore patterns are only matched against non-versioned files,
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and control whether they are treated as "unknown" or "ignored". If a file
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is explicitly added, it remains versioned regardless of whether it matches
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The ``.bzrignore`` file should normally be versioned, so that new copies
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of the branch see the same patterns::
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% bzr commit -m "Add ignore patterns"
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The command ``bzr ignore PATTERN`` can be used to easily add PATTERN to
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the ``.bzrignore file`` (creating it if necessary and registering it to
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be tracked by Bazaar). Removing and modifying patterns are done by
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directly editing the ``.bzrignore`` file.
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There are some ignored files which are not project specific, but more user
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specific. Things like editor temporary files, or personal temporary files.
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Rather than add these ignores to every project, bzr supports a global
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ignore file in ``~/.bazaar/ignore`` [#]_. It has the same syntax as the
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per-project ignore file.
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.. [#] On Windows, the users configuration files can be found in the
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application data directory. So instead of ``~/.bazaar/branch.conf``
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the configuration file can be found as:
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``C:\Documents and Settings\<username>\Application Data\Bazaar\2.0\branch.conf``.
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The same is true for ``locations.conf``, ``ignore``, and the
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``plugins`` directory.