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Viewing changes to bzrlib/weavefile.py

  • Committer: NamNguyen
  • Date: 2007-08-01 06:14:14 UTC
  • mto: (2789.1.1 ianc-integration)
  • mto: This revision was merged to the branch mainline in revision 2790.
  • Revision ID: namnguyen-20070801061414-u0tzrfgcz6z604lz
``Branch.hooks`` now supports ``pre_commit`` hook.

The hook's signature is

::

  hook(local, master, old_revno, old_revid, new_revno, new_revid,
       deleted_paths, added_paths, future_revision_tree)

``deleted_paths`` and ``added_paths`` are lists of paths. Renamed paths are
recorded in both ``deleted_paths`` and ``added_paths`` (i.e. deleted then
added).

``future_revision_tree`` is obtained from ``CommitBuilder.revision_tree``
to save hooks from getting it from the branch again.

For example, hooks can get a file:

::

  for path in added_paths:
      id = future_revision_tree.path2id(path)
      if future_revision_tree.kind(id) == 'file':
          file = future_revision_tree.get_file(id)
          ...

or export a tree and do ``make check`` or similar

::

  import bzrlib.export
  bzrlib.export.export(future_revision_tree, 'tmp_space')


If the commit is to be rejected, hooks should raise an ``Exception``.

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Lines of Context:
bzrlib/weavefile.py
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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#
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# Author: Martin Pool <mbp@canonical.com>
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def write_weave_v5(weave, f):
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    """Write weave to file f."""
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    f.write(FORMAT_1)
 
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    print >>f, FORMAT_1,
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    for version, included in enumerate(weave._parents):
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        if included:
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            # mininc = weave.minimal_parents(version)
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            mininc = included
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            f.write('i ')
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            f.write(' '.join(str(i) for i in mininc))
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            f.write('\n')
 
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            print >>f, 'i',
 
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            for i in mininc:
 
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                print >>f, i,
 
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            print >>f
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        else:
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            f.write('i\n')
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        f.write('1 ' + weave._sha1s[version] + '\n')
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        f.write('n ' + weave._names[version] + '\n')
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        f.write('\n')
 
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            print >>f, 'i'
 
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        print >>f, '1', weave._sha1s[version]
 
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        print >>f, 'n', weave._names[version]
 
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        print >>f
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    f.write('w\n')
 
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    print >>f, 'w'
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    for l in weave._weave:
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        if isinstance(l, tuple):
 
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            assert l[0] in '{}[]'
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            if l[0] == '}':
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                f.write('}\n')
 
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                print >>f, '}'
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            else:
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                f.write('%s %d\n' % l)
 
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                print >>f, '%s %d' % l
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        else: # text line
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            if not l:
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                f.write(', \n')
 
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                print >>f, ', '
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            elif l[-1] == '\n':
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                f.write('. ' + l)
 
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                assert l.find('\n', 0, -1) == -1
 
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                print >>f, '.', l,
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            else:
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                f.write(', ' + l + '\n')
 
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                assert l.find('\n') == -1
 
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                print >>f, ',', l
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    f.write('W\n')
 
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    print >>f, 'W'
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def _read_weave_v5(f, w):
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    """Private helper routine to read a weave format 5 file into memory.
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    This is only to be used by read_weave and WeaveFile.__init__.
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    """
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    #  200   0   2075.5080   1084.0360   bzrlib.weavefile:104(_read_weave_v5)
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    #  200   0    851.7250    501.1120   bzrlib.weavefile:104(_read_weave_v5)
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    # +59363 0    311.8780    311.8780   +<method 'append' of 'list' objects>
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    # +200   0     30.2500     30.2500   +<method 'readlines' of 'file' objects>
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    from weave import WeaveFormatError
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    lines = iter(f.readlines())
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    try:
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        l = lines.next()
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    except StopIteration:
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                w._parents.append(map(int, l[2:].split(' ')))
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            else:
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                w._parents.append([])
 
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            l = lines.next()[:-1]
 
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            assert '1 ' == l[0:2]
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            w._sha1s.append(l[2:])
 
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            l = lines.next()
 
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            assert 'n ' == l[0:2]
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            name = l[2:-1]
 
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            assert name not in w._name_map
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            w._names.append(name)
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            w._name_map[name] = ver
 
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            l = lines.next()
 
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            assert l == '\n'
 
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            ver += 1
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        elif l == 'w\n':
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            break
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        elif l == '}\n':
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            w._weave.append(('}', None))
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        else:
 
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            assert l[0] in '{[]', l
 
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            assert l[1] == ' ', l
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            w._weave.append((intern(l[0]), int(l[2:])))
 
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    return w
 
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